├── .github └── workflows │ ├── ci.yml │ ├── gradle-wrapper-validation.yml │ └── release.yml ├── .gitignore ├── .travis.yml ├── LICENCE.txt ├── README.md ├── build.gradle ├── config └── checkstyle │ └── checkstyle.xml ├── doc └── DisruptorProxy.jpg ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── manifest └── MANIFEST.MF ├── settings.gradle └── src ├── main └── java │ └── com │ └── lmax │ └── tool │ └── disruptor │ ├── BatchListener.java │ ├── BatchSizeListener.java │ ├── ConfigurableValidator.java │ ├── DisruptorProxy.java │ ├── DropListener.java │ ├── GeneratorType.java │ ├── Invoker.java │ ├── MessagePublicationListener.java │ ├── NoMessagePublicationListener.java │ ├── NoOpDropListener.java │ ├── OverflowStrategy.java │ ├── ProxyMethodInvocation.java │ ├── Resetable.java │ ├── RingBufferProxyEventFactory.java │ ├── RingBufferProxyGenerator.java │ ├── RingBufferProxyGeneratorFactory.java │ ├── RingBufferProxyValidation.java │ ├── ValidationConfig.java │ ├── ValidationConfigBuilder.java │ ├── bytecode │ ├── ArgumentHolderGenerator.java │ ├── ArgumentHolderHelper.java │ ├── ByteCodeHelper.java │ └── GeneratedRingBufferProxyGenerator.java │ ├── handlers │ ├── BatchSizeReportingEventHandler.java │ ├── EndOfBatchEventHandler.java │ ├── Handlers.java │ ├── InvokerEventHandler.java │ └── ResetHandler.java │ └── reflect │ ├── ObjectArrayHolder.java │ ├── ReflectiveMethodInvoker.java │ ├── ReflectiveRingBufferInvocationHandler.java │ └── ReflectiveRingBufferProxyGenerator.java └── test └── java └── com └── lmax └── tool └── disruptor ├── AbstractRingBufferProxyGeneratorTest.java ├── BatchAwareListenerImpl.java ├── CountingDropListener.java ├── CountingMessagePublicationListener.java ├── Listener.java ├── ListenerImpl.java ├── RingBufferProxyGeneratorFactoryTest.java ├── RingBufferProxyValidationTest.java ├── bytecode ├── ArgumentHolderHelperTest.java └── BytecodeGenerationRingBufferProxyGeneratorTest.java ├── handlers └── HandlersTest.java └── reflect ├── ReflectiveRingBufferInvocationHandlerTest.java └── ReflectiveRingBufferProxyGeneratorTest.java /.github/workflows/ci.yml: -------------------------------------------------------------------------------- 1 | name: Java CI with Gradle 2 | 3 | on: 4 | push: 5 | branches: [ master ] 6 | pull_request: 7 | branches: [ master ] 8 | 9 | jobs: 10 | build: 11 | runs-on: ubuntu-latest 12 | strategy: 13 | matrix: 14 | java: [ 11 ] 15 | name: Java ${{ matrix.java }} 16 | steps: 17 | - uses: actions/checkout@v2 18 | 19 | - name: Set up java 20 | uses: actions/setup-java@v1 21 | with: 22 | java-version: ${{ matrix.java }} 23 | 24 | - name: Setup Gradle 25 | uses: gradle/actions/setup-gradle@v3 26 | 27 | - name: Grant execute permission for gradlew 28 | run: chmod +x gradlew 29 | 30 | - name: Build with Gradle 31 | run: ./gradlew build 32 | 33 | dependency-submission: 34 | runs-on: ubuntu-latest 35 | permissions: 36 | contents: write 37 | 38 | steps: 39 | - uses: actions/checkout@v4 40 | 41 | - name: Set up JDK 17 42 | uses: actions/setup-java@v4 43 | with: 44 | java-version: '11' 45 | distribution: 'temurin' 46 | 47 | - name: Generate and submit dependency graph 48 | uses: gradle/actions/dependency-submission@417ae3ccd767c252f5661f1ace9f835f9654f2b5 49 | 50 | javadoc: 51 | runs-on: ubuntu-latest 52 | permissions: 53 | contents: write 54 | pages: write 55 | id-token: write 56 | 57 | steps: 58 | - uses: actions/checkout@v4 59 | 60 | - name: Set up JDK 17 61 | uses: actions/setup-java@v4 62 | with: 63 | java-version: '17' 64 | distribution: 'temurin' 65 | 66 | - name: Setup Gradle 67 | uses: gradle/actions/setup-gradle@v3 68 | 69 | - name: Build Javadoc 70 | run: ./gradlew javadoc 71 | 72 | - name: Deploy Pages Content 73 | uses: JamesIves/github-pages-deploy-action@v4.6.4 74 | # https://stackoverflow.com/questions/64781462/github-actions-default-branch-variable 75 | if: ${{ always() && format('refs/heads/{0}', github.event.repository.default_branch) == github.ref }} 76 | with: 77 | folder: build/docs/javadoc -------------------------------------------------------------------------------- /.github/workflows/gradle-wrapper-validation.yml: -------------------------------------------------------------------------------- 1 | name: "Validate Gradle Wrapper" 2 | on: [push, pull_request] 3 | 4 | jobs: 5 | validation: 6 | name: "Validation" 7 | runs-on: ubuntu-latest 8 | steps: 9 | - uses: actions/checkout@v2 10 | - uses: gradle/wrapper-validation-action@v1 11 | -------------------------------------------------------------------------------- /.github/workflows/release.yml: -------------------------------------------------------------------------------- 1 | name: Publish Release Artifacts 2 | on: 3 | release: 4 | types: [ created ] 5 | 6 | permissions: 7 | contents: write 8 | packages: write 9 | id-token: write 10 | 11 | jobs: 12 | publish: 13 | runs-on: ubuntu-latest 14 | steps: 15 | - uses: actions/checkout@v4 16 | with: 17 | fetch-depth: '0' 18 | - name: Set up Java 19 | uses: actions/setup-java@v3 20 | with: 21 | java-version: '11' 22 | distribution: 'temurin' 23 | - name: Validate Gradle wrapper 24 | uses: gradle/wrapper-validation-action@v1 25 | - name: Set Gradle App Version to ${{ github.event.release.tag_name }} 26 | run: sed -i "s/version = '.*'/version = '${{ github.event.release.tag_name }}'/g" build.gradle 27 | - name: Publish package 28 | uses: gradle/gradle-build-action@v2.11.1 29 | with: 30 | arguments: publish 31 | env: 32 | GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} 33 | - name: Publish package to Maven Central 34 | uses: gradle/gradle-build-action@v2.11.1 35 | with: 36 | arguments: jreleaserFullRelease 37 | env: 38 | GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} 39 | JRELEASER_MAVENCENTRAL_USERNAME: ${{ secrets.JRELEASER_MAVENCENTRAL_USERNAME }} 40 | JRELEASER_MAVENCENTRAL_TOKEN: ${{ secrets.JRELEASER_MAVENCENTRAL_TOKEN }} 41 | JRELEASER_GPG_SECRET_KEY: "${{ secrets.JRELEASER_GPG_SECRET_KEY }}" 42 | JRELEASER_GPG_PUBLIC_KEY: "${{ secrets.JRELEASER_GPG_PUBLIC_KEY }}" 43 | JRELEASER_GPG_PASSPHRASE: "${{ secrets.JRELEASER_GPG_PASSPHRASE }}" 44 | JRELEASER_GITHUB_TOKEN: ${{ github.token }} 45 | JRELEASER_MAVENCENTRAL_STAGE: "FULL" 46 | - name: Add Artifact to GitHub Release 47 | uses: softprops/action-gh-release@v1 48 | with: 49 | files: build/libs/disruptor-proxy-*.jar 50 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Created by https://www.toptal.com/developers/gitignore/api/java,linux,gradle,intellij 2 | # Edit at https://www.toptal.com/developers/gitignore?templates=java,linux,gradle,intellij 3 | 4 | ### Intellij ### 5 | # Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider 6 | # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 7 | 8 | # User-specific stuff 9 | .idea/**/workspace.xml 10 | .idea/**/tasks.xml 11 | .idea/**/usage.statistics.xml 12 | .idea/**/dictionaries 13 | .idea/**/shelf 14 | 15 | # AWS User-specific 16 | .idea/**/aws.xml 17 | 18 | # Generated files 19 | .idea/**/contentModel.xml 20 | 21 | # Sensitive or high-churn files 22 | .idea/**/dataSources/ 23 | .idea/**/dataSources.ids 24 | .idea/**/dataSources.local.xml 25 | .idea/**/sqlDataSources.xml 26 | .idea/**/dynamic.xml 27 | .idea/**/uiDesigner.xml 28 | .idea/**/dbnavigator.xml 29 | 30 | # Gradle 31 | .idea/**/gradle.xml 32 | .idea/**/libraries 33 | 34 | # Gradle and Maven with auto-import 35 | # When using Gradle or Maven with auto-import, you should exclude module files, 36 | # since they will be recreated, and may cause churn. Uncomment if using 37 | # auto-import. 38 | # .idea/artifacts 39 | # .idea/compiler.xml 40 | # .idea/jarRepositories.xml 41 | # .idea/modules.xml 42 | # .idea/*.iml 43 | # .idea/modules 44 | # *.iml 45 | # *.ipr 46 | 47 | # CMake 48 | cmake-build-*/ 49 | 50 | # Mongo Explorer plugin 51 | .idea/**/mongoSettings.xml 52 | 53 | # File-based project format 54 | *.iws 55 | 56 | # IntelliJ 57 | out/ 58 | 59 | # mpeltonen/sbt-idea plugin 60 | .idea_modules/ 61 | 62 | # JIRA plugin 63 | atlassian-ide-plugin.xml 64 | 65 | # Cursive Clojure plugin 66 | .idea/replstate.xml 67 | 68 | # SonarLint plugin 69 | .idea/sonarlint/ 70 | 71 | # Crashlytics plugin (for Android Studio and IntelliJ) 72 | com_crashlytics_export_strings.xml 73 | crashlytics.properties 74 | crashlytics-build.properties 75 | fabric.properties 76 | 77 | # Editor-based Rest Client 78 | .idea/httpRequests 79 | 80 | # Android studio 3.1+ serialized cache file 81 | .idea/caches/build_file_checksums.ser 82 | 83 | ### Intellij Patch ### 84 | # Comment Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-215987721 85 | 86 | # *.iml 87 | # modules.xml 88 | # .idea/misc.xml 89 | # *.ipr 90 | 91 | # Sonarlint plugin 92 | # https://plugins.jetbrains.com/plugin/7973-sonarlint 93 | .idea/**/sonarlint/ 94 | 95 | # SonarQube Plugin 96 | # https://plugins.jetbrains.com/plugin/7238-sonarqube-community-plugin 97 | .idea/**/sonarIssues.xml 98 | 99 | # Markdown Navigator plugin 100 | # https://plugins.jetbrains.com/plugin/7896-markdown-navigator-enhanced 101 | .idea/**/markdown-navigator.xml 102 | .idea/**/markdown-navigator-enh.xml 103 | .idea/**/markdown-navigator/ 104 | 105 | # Cache file creation bug 106 | # See https://youtrack.jetbrains.com/issue/JBR-2257 107 | .idea/$CACHE_FILE$ 108 | 109 | # CodeStream plugin 110 | # https://plugins.jetbrains.com/plugin/12206-codestream 111 | .idea/codestream.xml 112 | 113 | # Azure Toolkit for IntelliJ plugin 114 | # https://plugins.jetbrains.com/plugin/8053-azure-toolkit-for-intellij 115 | .idea/**/azureSettings.xml 116 | 117 | ### Java ### 118 | # Compiled class file 119 | *.class 120 | 121 | # Log file 122 | *.log 123 | 124 | # BlueJ files 125 | *.ctxt 126 | 127 | # Mobile Tools for Java (J2ME) 128 | .mtj.tmp/ 129 | 130 | # Package Files # 131 | *.jar 132 | *.war 133 | *.nar 134 | *.ear 135 | *.zip 136 | *.tar.gz 137 | *.rar 138 | 139 | # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml 140 | hs_err_pid* 141 | replay_pid* 142 | 143 | ### Linux ### 144 | *~ 145 | 146 | # temporary files which can be created if a process still has a handle open of a deleted file 147 | .fuse_hidden* 148 | 149 | # KDE directory preferences 150 | .directory 151 | 152 | # Linux trash folder which might appear on any partition or disk 153 | .Trash-* 154 | 155 | # .nfs files are created when an open file is removed but is still being accessed 156 | .nfs* 157 | 158 | ### Gradle ### 159 | .gradle 160 | **/build/ 161 | !src/**/build/ 162 | 163 | # Ignore Gradle GUI config 164 | gradle-app.setting 165 | 166 | # Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored) 167 | !gradle-wrapper.jar 168 | 169 | # Avoid ignore Gradle wrappper properties 170 | !gradle-wrapper.properties 171 | 172 | # Cache of project 173 | .gradletasknamecache 174 | 175 | # Eclipse Gradle plugin generated files 176 | # Eclipse Core 177 | .project 178 | # JDT-specific (Eclipse Java Development Tools) 179 | .classpath 180 | 181 | ### Gradle Patch ### 182 | # Java heap dump 183 | *.hprof 184 | 185 | # End of https://www.toptal.com/developers/gitignore/api/java,linux,gradle,intellij 186 | -------------------------------------------------------------------------------- /.travis.yml: -------------------------------------------------------------------------------- 1 | language: java 2 | -------------------------------------------------------------------------------- /LICENCE.txt: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright [yyyy] [name of copyright owner] 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # disruptor-proxy 2 | 3 | ![Java CI with Gradle](https://github.com/LMAX-Exchange/disruptor-proxy/workflows/Java%20CI%20with%20Gradle/badge.svg) 4 | [![License](https://img.shields.io/github/license/LMAX-Exchange/disruptor-proxy)](https://github.com/LMAX-Exchange/disruptor-proxy/blob/master/LICENCE.txt) 5 | 6 | The disruptor-proxy is a tool for creating thread-safe proxies to your existing business code. 7 | 8 | Utilising the power of the [Disruptor](https://github.com/LMAX-Exchange/disruptor), 9 | disruptor-proxy will provide a high-performance, low-latency multi-threaded interface 10 | to your single-threaded components. 11 | 12 | This in turn allows users to exploit the 13 | [single-writer principle](http://mechanical-sympathy.blogspot.co.uk/2011/09/single-writer-principle.html) 14 | for maximum straight-line performance. 15 | 16 | ![implementation diagram](https://raw.githubusercontent.com/LMAX-Exchange/disruptor-proxy/master/doc/DisruptorProxy.jpg) 17 | 18 | ## Maintainer 19 | 20 | 21 | LMAX Development Team 22 | 23 | ## Examples 24 | 25 | ```java 26 | 27 | // Basic usage 28 | 29 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 30 | 31 | final T tImpl = new ConcreteT(); 32 | 33 | final RingBufferProxyGenerator generator = generatorFactory.newProxy(GeneratorType.BYTECODE_GENERATION); 34 | 35 | final T proxy = generator.createRingBufferProxy(T.class, disruptor, OverflowStrategy.DROP, tImpl); 36 | 37 | disruptor.start(); 38 | ``` 39 | 40 | 41 | 42 | ```java 43 | 44 | // Get notified of end-of-batch events 45 | 46 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 47 | 48 | final T tImpl = new ConcreteT(); 49 | final BatchListener batchListener = (BatchListener) tImpl; // implement BatchListener in your component 50 | 51 | final RingBufferProxyGenerator generator = generatorFactory.newProxy(GeneratorType.BYTECODE_GENERATION); 52 | 53 | final T proxy = generator.createRingBufferProxy(T.class, disruptor, OverflowStrategy.DROP, tImpl); 54 | 55 | disruptor.start(); 56 | ``` 57 | 58 | 59 | 60 | ```java 61 | 62 | // Get notified of buffer-overflow events 63 | 64 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 65 | 66 | final T tImpl = new ConcreteT(); 67 | final DropListener dropListener = new MyDropListener(); // handle drop events 68 | 69 | final RingBufferProxyGenerator generator = 70 | generatorFactory.newProxy(GeneratorType.BYTECODE_GENERATION, 71 | new ConfigurableValidator(true, true), 72 | dropListener); 73 | 74 | final T proxy = generator.createRingBufferProxy(T.class, disruptor, OverflowStrategy.DROP, tImpl); 75 | 76 | disruptor.start(); 77 | ``` 78 | 79 | 80 | ## GeneratorType 81 | 82 | * `GeneratorType.JDK_REFLECTION` - uses `java.lang.reflect.Proxy` to generate a dynamic proxy that will add events to the RingBuffer. Use this for minimal dependencies. 83 | * `GeneratorType.BYTECODE_GENERATION` - uses Javassist to generate classes that will add events to the RingBuffer. Use this for maximum performance. 84 | 85 | 86 | ## Dependencies 87 | 88 | Minimal dependency is the Disruptor JAR. 89 | 90 | If you are using byte-code generation for the proxy class (specified by `GeneratorType`), you'll also need the Javassist JAR. 91 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | plugins { 18 | id 'java' 19 | id 'java-library' 20 | id 'maven-publish' 21 | id 'signing' 22 | id 'checkstyle' 23 | id 'idea' 24 | id "biz.aQute.bnd.builder" version "6.3.1" 25 | id 'org.jreleaser' version '1.14.0' 26 | } 27 | 28 | 29 | defaultTasks 'checkstyleTest', 'checkstyleMain', 'build' 30 | 31 | group = 'com.lmax' 32 | // The below is updated by CI during the release 33 | version = '1.0.0' 34 | 35 | ext { 36 | fullName = 'Disruptor-Proxy' 37 | fullDescription = 'A utility for generating Disruptor-backed proxies for easy execution serialisation' 38 | teamName = 'LMAX Development Team' 39 | siteUrl = 'https://github.com/LMAX-Exchange/disruptor-proxy' 40 | sourceUrl = 'git@github.com:LMAX-Exchange/disruptor-proxy.git' 41 | } 42 | 43 | repositories { 44 | mavenCentral() 45 | } 46 | 47 | dependencies { 48 | testImplementation 'junit:junit:4.5' 49 | testImplementation 'org.hamcrest:hamcrest-core:1.3' 50 | implementation 'org.javassist:javassist:3.30.2-GA' 51 | implementation 'com.lmax:disruptor:3.3.0' 52 | } 53 | 54 | 55 | java { 56 | toolchain { 57 | languageVersion = JavaLanguageVersion.of(11) 58 | } 59 | withJavadocJar() 60 | withSourcesJar() 61 | } 62 | 63 | checkstyle { 64 | toolVersion = 6.3 65 | } 66 | 67 | publishing { 68 | publications { 69 | disruptor(MavenPublication) { 70 | from components.java 71 | 72 | groupId = 'com.lmax' 73 | artifactId = 'disruptor-proxy' 74 | 75 | pom { 76 | name = project.ext.fullName 77 | description = project.ext.fullDescription 78 | url = project.ext.siteUrl 79 | 80 | scm { 81 | url = "scm:${project.ext.sourceUrl}" 82 | connection = "scm:${project.ext.sourceUrl}" 83 | developerConnection = "scm:${project.ext.sourceUrl}" 84 | } 85 | 86 | licenses { 87 | license { 88 | name = 'Apache-2.0' 89 | url = 'https://spdx.org/licenses/Apache-2.0.html' 90 | } 91 | } 92 | 93 | developers { 94 | developer { 95 | id = 'LMAX Group Open Source' 96 | name = teamName 97 | email = 'opensource@lmax.com' 98 | } 99 | } 100 | } 101 | } 102 | } 103 | 104 | 105 | repositories { 106 | maven { 107 | url = layout.buildDirectory.dir('staging-deploy') 108 | } 109 | } 110 | } 111 | 112 | jreleaser { 113 | files { 114 | active = 'ALWAYS' 115 | glob { 116 | pattern = 'build/staging-deploy/**/*.jar' 117 | pattern = 'build/staging-deploy/**/*.pom' 118 | pattern = 'build/staging-deploy/**/*.module' 119 | } 120 | } 121 | signing { 122 | active = 'ALWAYS' 123 | armored = true 124 | mode = 'MEMORY' 125 | } 126 | deploy { 127 | maven { 128 | mavenCentral { 129 | sonatype { 130 | active = 'ALWAYS' 131 | url = 'https://central.sonatype.com/api/v1/publisher' 132 | stagingRepository('build/staging-deploy') 133 | applyMavenCentralRules = true 134 | } 135 | } 136 | } 137 | } 138 | } 139 | -------------------------------------------------------------------------------- /config/checkstyle/checkstyle.xml: -------------------------------------------------------------------------------- 1 | 2 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | 177 | 178 | 179 | 180 | 181 | 182 | 183 | 184 | 185 | 186 | 187 | 188 | 189 | 190 | 192 | 194 | 195 | 196 | 197 | 198 | 200 | 201 | 202 | 203 | 204 | 205 | 206 | 207 | 208 | 209 | 210 | 211 | 212 | 213 | 214 | 215 | 216 | -------------------------------------------------------------------------------- /doc/DisruptorProxy.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/LMAX-Exchange/disruptor-proxy/f6b99be6c7835c1d8a60643e796548d179b556db/doc/DisruptorProxy.jpg -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/LMAX-Exchange/disruptor-proxy/f6b99be6c7835c1d8a60643e796548d179b556db/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | distributionBase=GRADLE_USER_HOME 2 | distributionPath=wrapper/dists 3 | distributionUrl=https\://services.gradle.org/distributions/gradle-8.10.2-bin.zip 4 | networkTimeout=10000 5 | zipStoreBase=GRADLE_USER_HOME 6 | zipStorePath=wrapper/dists 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/bin/sh 2 | 3 | # 4 | # Copyright © 2015-2021 the original authors. 5 | # 6 | # Licensed under the Apache License, Version 2.0 (the "License"); 7 | # you may not use this file except in compliance with the License. 8 | # You may obtain a copy of the License at 9 | # 10 | # https://www.apache.org/licenses/LICENSE-2.0 11 | # 12 | # Unless required by applicable law or agreed to in writing, software 13 | # distributed under the License is distributed on an "AS IS" BASIS, 14 | # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 | # See the License for the specific language governing permissions and 16 | # limitations under the License. 17 | # 18 | 19 | ############################################################################## 20 | # 21 | # Gradle start up script for POSIX generated by Gradle. 22 | # 23 | # Important for running: 24 | # 25 | # (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is 26 | # noncompliant, but you have some other compliant shell such as ksh or 27 | # bash, then to run this script, type that shell name before the whole 28 | # command line, like: 29 | # 30 | # ksh Gradle 31 | # 32 | # Busybox and similar reduced shells will NOT work, because this script 33 | # requires all of these POSIX shell features: 34 | # * functions; 35 | # * expansions «$var», «${var}», «${var:-default}», «${var+SET}», 36 | # «${var#prefix}», «${var%suffix}», and «$( cmd )»; 37 | # * compound commands having a testable exit status, especially «case»; 38 | # * various built-in commands including «command», «set», and «ulimit». 39 | # 40 | # Important for patching: 41 | # 42 | # (2) This script targets any POSIX shell, so it avoids extensions provided 43 | # by Bash, Ksh, etc; in particular arrays are avoided. 44 | # 45 | # The "traditional" practice of packing multiple parameters into a 46 | # space-separated string is a well documented source of bugs and security 47 | # problems, so this is (mostly) avoided, by progressively accumulating 48 | # options in "$@", and eventually passing that to Java. 49 | # 50 | # Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, 51 | # and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; 52 | # see the in-line comments for details. 53 | # 54 | # There are tweaks for specific operating systems such as AIX, CygWin, 55 | # Darwin, MinGW, and NonStop. 56 | # 57 | # (3) This script is generated from the Groovy template 58 | # https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt 59 | # within the Gradle project. 60 | # 61 | # You can find Gradle at https://github.com/gradle/gradle/. 62 | # 63 | ############################################################################## 64 | 65 | # Attempt to set APP_HOME 66 | 67 | # Resolve links: $0 may be a link 68 | app_path=$0 69 | 70 | # Need this for daisy-chained symlinks. 71 | while 72 | APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path 73 | [ -h "$app_path" ] 74 | do 75 | ls=$( ls -ld "$app_path" ) 76 | link=${ls#*' -> '} 77 | case $link in #( 78 | /*) app_path=$link ;; #( 79 | *) app_path=$APP_HOME$link ;; 80 | esac 81 | done 82 | 83 | # This is normally unused 84 | # shellcheck disable=SC2034 85 | APP_BASE_NAME=${0##*/} 86 | APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit 87 | 88 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 89 | DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' 90 | 91 | # Use the maximum available, or set MAX_FD != -1 to use that value. 92 | MAX_FD=maximum 93 | 94 | warn () { 95 | echo "$*" 96 | } >&2 97 | 98 | die () { 99 | echo 100 | echo "$*" 101 | echo 102 | exit 1 103 | } >&2 104 | 105 | # OS specific support (must be 'true' or 'false'). 106 | cygwin=false 107 | msys=false 108 | darwin=false 109 | nonstop=false 110 | case "$( uname )" in #( 111 | CYGWIN* ) cygwin=true ;; #( 112 | Darwin* ) darwin=true ;; #( 113 | MSYS* | MINGW* ) msys=true ;; #( 114 | NONSTOP* ) nonstop=true ;; 115 | esac 116 | 117 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 118 | 119 | 120 | # Determine the Java command to use to start the JVM. 121 | if [ -n "$JAVA_HOME" ] ; then 122 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 123 | # IBM's JDK on AIX uses strange locations for the executables 124 | JAVACMD=$JAVA_HOME/jre/sh/java 125 | else 126 | JAVACMD=$JAVA_HOME/bin/java 127 | fi 128 | if [ ! -x "$JAVACMD" ] ; then 129 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 130 | 131 | Please set the JAVA_HOME variable in your environment to match the 132 | location of your Java installation." 133 | fi 134 | else 135 | JAVACMD=java 136 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 137 | 138 | Please set the JAVA_HOME variable in your environment to match the 139 | location of your Java installation." 140 | fi 141 | 142 | # Increase the maximum file descriptors if we can. 143 | if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then 144 | case $MAX_FD in #( 145 | max*) 146 | # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. 147 | # shellcheck disable=SC3045 148 | MAX_FD=$( ulimit -H -n ) || 149 | warn "Could not query maximum file descriptor limit" 150 | esac 151 | case $MAX_FD in #( 152 | '' | soft) :;; #( 153 | *) 154 | # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. 155 | # shellcheck disable=SC3045 156 | ulimit -n "$MAX_FD" || 157 | warn "Could not set maximum file descriptor limit to $MAX_FD" 158 | esac 159 | fi 160 | 161 | # Collect all arguments for the java command, stacking in reverse order: 162 | # * args from the command line 163 | # * the main class name 164 | # * -classpath 165 | # * -D...appname settings 166 | # * --module-path (only if needed) 167 | # * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. 168 | 169 | # For Cygwin or MSYS, switch paths to Windows format before running java 170 | if "$cygwin" || "$msys" ; then 171 | APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) 172 | CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) 173 | 174 | JAVACMD=$( cygpath --unix "$JAVACMD" ) 175 | 176 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 177 | for arg do 178 | if 179 | case $arg in #( 180 | -*) false ;; # don't mess with options #( 181 | /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath 182 | [ -e "$t" ] ;; #( 183 | *) false ;; 184 | esac 185 | then 186 | arg=$( cygpath --path --ignore --mixed "$arg" ) 187 | fi 188 | # Roll the args list around exactly as many times as the number of 189 | # args, so each arg winds up back in the position where it started, but 190 | # possibly modified. 191 | # 192 | # NB: a `for` loop captures its iteration list before it begins, so 193 | # changing the positional parameters here affects neither the number of 194 | # iterations, nor the values presented in `arg`. 195 | shift # remove old arg 196 | set -- "$@" "$arg" # push replacement arg 197 | done 198 | fi 199 | 200 | # Collect all arguments for the java command; 201 | # * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of 202 | # shell script including quotes and variable substitutions, so put them in 203 | # double quotes to make sure that they get re-expanded; and 204 | # * put everything else in single quotes, so that it's not re-expanded. 205 | 206 | set -- \ 207 | "-Dorg.gradle.appname=$APP_BASE_NAME" \ 208 | -classpath "$CLASSPATH" \ 209 | org.gradle.wrapper.GradleWrapperMain \ 210 | "$@" 211 | 212 | # Stop when "xargs" is not available. 213 | if ! command -v xargs >/dev/null 2>&1 214 | then 215 | die "xargs is not available" 216 | fi 217 | 218 | # Use "xargs" to parse quoted args. 219 | # 220 | # With -n1 it outputs one arg per line, with the quotes and backslashes removed. 221 | # 222 | # In Bash we could simply go: 223 | # 224 | # readarray ARGS < <( xargs -n1 <<<"$var" ) && 225 | # set -- "${ARGS[@]}" "$@" 226 | # 227 | # but POSIX shell has neither arrays nor command substitution, so instead we 228 | # post-process each arg (as a line of input to sed) to backslash-escape any 229 | # character that might be a shell metacharacter, then use eval to reverse 230 | # that process (while maintaining the separation between arguments), and wrap 231 | # the whole thing up as a single "set" statement. 232 | # 233 | # This will of course break if any of these variables contains a newline or 234 | # an unmatched quote. 235 | # 236 | 237 | eval "set -- $( 238 | printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | 239 | xargs -n1 | 240 | sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | 241 | tr '\n' ' ' 242 | )" '"$@"' 243 | 244 | exec "$JAVACMD" "$@" 245 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @rem 2 | @rem Copyright 2015 the original author or authors. 3 | @rem 4 | @rem Licensed under the Apache License, Version 2.0 (the "License"); 5 | @rem you may not use this file except in compliance with the License. 6 | @rem You may obtain a copy of the License at 7 | @rem 8 | @rem https://www.apache.org/licenses/LICENSE-2.0 9 | @rem 10 | @rem Unless required by applicable law or agreed to in writing, software 11 | @rem distributed under the License is distributed on an "AS IS" BASIS, 12 | @rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | @rem See the License for the specific language governing permissions and 14 | @rem limitations under the License. 15 | @rem 16 | 17 | @if "%DEBUG%"=="" @echo off 18 | @rem ########################################################################## 19 | @rem 20 | @rem Gradle startup script for Windows 21 | @rem 22 | @rem ########################################################################## 23 | 24 | @rem Set local scope for the variables with windows NT shell 25 | if "%OS%"=="Windows_NT" setlocal 26 | 27 | set DIRNAME=%~dp0 28 | if "%DIRNAME%"=="" set DIRNAME=. 29 | @rem This is normally unused 30 | set APP_BASE_NAME=%~n0 31 | set APP_HOME=%DIRNAME% 32 | 33 | @rem Resolve any "." and ".." in APP_HOME to make it shorter. 34 | for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi 35 | 36 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 37 | set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" 38 | 39 | @rem Find java.exe 40 | if defined JAVA_HOME goto findJavaFromJavaHome 41 | 42 | set JAVA_EXE=java.exe 43 | %JAVA_EXE% -version >NUL 2>&1 44 | if %ERRORLEVEL% equ 0 goto execute 45 | 46 | echo. 47 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 48 | echo. 49 | echo Please set the JAVA_HOME variable in your environment to match the 50 | echo location of your Java installation. 51 | 52 | goto fail 53 | 54 | :findJavaFromJavaHome 55 | set JAVA_HOME=%JAVA_HOME:"=% 56 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 57 | 58 | if exist "%JAVA_EXE%" goto execute 59 | 60 | echo. 61 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 62 | echo. 63 | echo Please set the JAVA_HOME variable in your environment to match the 64 | echo location of your Java installation. 65 | 66 | goto fail 67 | 68 | :execute 69 | @rem Setup the command line 70 | 71 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 72 | 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if %ERRORLEVEL% equ 0 goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | set EXIT_CODE=%ERRORLEVEL% 85 | if %EXIT_CODE% equ 0 set EXIT_CODE=1 86 | if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% 87 | exit /b %EXIT_CODE% 88 | 89 | :mainEnd 90 | if "%OS%"=="Windows_NT" endlocal 91 | 92 | :omega 93 | -------------------------------------------------------------------------------- /manifest/MANIFEST.MF: -------------------------------------------------------------------------------- 1 | Project: @project.name@ 2 | Author: Mark Price 3 | Version: @version.major@.@version.minor@ 4 | Build-Date: @version.timestamp@ 5 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | rootProject.name = 'disruptor-proxy' 18 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/BatchListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * An interface to describe objects that will be called on the end of a Disruptor batch. 21 | * 22 | * Implement this interface in your implementation object if you wish to be notified of the end of a Disruptor batch. 23 | */ 24 | public interface BatchListener 25 | { 26 | /** 27 | * Will be called at the end of a Disruptor batch 28 | */ 29 | void onEndOfBatch(); 30 | } 31 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/BatchSizeListener.java: -------------------------------------------------------------------------------- 1 | package com.lmax.tool.disruptor; 2 | 3 | /** 4 | * An interface to describe objects that will be notified of the current batch size at the end of each Disruptor batch. 5 | * 6 | * Implement this interface in your implementation object if you wish to be notified of the size of each Disruptor batch. 7 | */ 8 | public interface BatchSizeListener 9 | { 10 | 11 | /** 12 | * Will be called at the end of a Disruptor batch 13 | * @param batchSize The size of the batch 14 | */ 15 | void onEndOfBatch(int batchSize); 16 | 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/ConfigurableValidator.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.lmax.tool.disruptor; 17 | 18 | import com.lmax.disruptor.dsl.Disruptor; 19 | 20 | import java.lang.annotation.Annotation; 21 | import java.lang.reflect.Field; 22 | 23 | public final class ConfigurableValidator implements RingBufferProxyValidation, ValidationConfig 24 | { 25 | 26 | private final boolean validateProxyInterfaces; 27 | private final boolean validateExceptionHandler; 28 | 29 | public ConfigurableValidator(final ProxyInterface proxyInterfaceConfiguration, 30 | final ExceptionHandler exceptionHandlerConfiguration) 31 | { 32 | this(proxyInterfaceConfiguration.shouldValidateProxyInterfaces(), 33 | exceptionHandlerConfiguration.shouldValidateExceptionHandler()); 34 | } 35 | 36 | 37 | public ConfigurableValidator(final boolean validateProxyInterfaces, final boolean validateExceptionHandler) 38 | { 39 | this.validateProxyInterfaces = validateProxyInterfaces; 40 | this.validateExceptionHandler = validateExceptionHandler; 41 | } 42 | 43 | public ConfigurableValidator(final ValidationConfig validationConfig) 44 | { 45 | this(validationConfig.validateProxyInterfaces(), validationConfig.validateExceptionHandler()); 46 | } 47 | 48 | @Override 49 | public void validateAll(final Disruptor disruptor, final Class disruptorProxyInterface) 50 | { 51 | ensureThatProxyInterfaceIsAnInterface(disruptorProxyInterface); 52 | ensureDisruptorInstanceHasAnExceptionHandler(disruptor); 53 | ensureDisruptorProxyIsAnnotatedWithDisruptorProxyAnnotation(disruptorProxyInterface); 54 | } 55 | 56 | private void ensureThatProxyInterfaceIsAnInterface(final Class disruptorProxyInterface) 57 | { 58 | if(!disruptorProxyInterface.isInterface()) 59 | { 60 | throw new IllegalArgumentException("Not an interface: " + disruptorProxyInterface); 61 | } 62 | } 63 | 64 | private void ensureDisruptorInstanceHasAnExceptionHandler(final Disruptor disruptor) 65 | { 66 | if (!validateExceptionHandler) 67 | { 68 | return; 69 | } 70 | try 71 | { 72 | final Field field = Disruptor.class.getDeclaredField("exceptionHandler"); 73 | field.setAccessible(true); 74 | final Object exceptionHandler = field.get(disruptor); 75 | if (exceptionHandler == null) 76 | { 77 | throw new IllegalStateException("Please supply an ExceptionHandler to the Disruptor instance. " + 78 | "The default Disruptor behaviour is to stop processing when an exception occurs."); 79 | } 80 | if (exceptionHandler.getClass().getSimpleName().equals("com.lmax.disruptor.dsl.ExceptionHandlerWrapper")) 81 | { 82 | final Field delegateField = exceptionHandler.getClass().getDeclaredField("delegate"); 83 | delegateField.setAccessible(true); 84 | final Object nestedExceptionHandler = delegateField.get(exceptionHandler); 85 | if (nestedExceptionHandler == null) 86 | { 87 | throw new IllegalStateException("Please supply an ExceptionHandler to the Disruptor instance. " + 88 | "The default Disruptor behaviour is to stop processing when an exception occurs."); 89 | } 90 | } 91 | } 92 | catch (NoSuchFieldException | IllegalAccessException e) 93 | { 94 | throw new RuntimeException("Unable to inspect Disruptor instance", e); 95 | } 96 | } 97 | 98 | // visible for testing 99 | void ensureDisruptorProxyIsAnnotatedWithDisruptorProxyAnnotation(final Class disruptorProxyInterface) 100 | { 101 | if (!validateProxyInterfaces) 102 | { 103 | return; 104 | } 105 | for (Annotation annotation : disruptorProxyInterface.getAnnotations()) 106 | { 107 | if (annotation instanceof DisruptorProxy) 108 | { 109 | return; 110 | } 111 | } 112 | throw new IllegalArgumentException("Please supply a disruptor proxy interface that is annotated with " + DisruptorProxy.class); 113 | } 114 | 115 | @Override 116 | public boolean validateProxyInterfaces() 117 | { 118 | return validateProxyInterfaces; 119 | } 120 | 121 | @Override 122 | public boolean validateExceptionHandler() 123 | { 124 | return validateExceptionHandler; 125 | } 126 | } 127 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/DisruptorProxy.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.lmax.tool.disruptor; 17 | 18 | import java.lang.annotation.ElementType; 19 | import java.lang.annotation.Retention; 20 | import java.lang.annotation.RetentionPolicy; 21 | import java.lang.annotation.Target; 22 | 23 | @Retention(RetentionPolicy.RUNTIME) 24 | @Target(ElementType.TYPE) 25 | public @interface DisruptorProxy 26 | { 27 | } 28 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/DropListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * Interface for receiving notifications that the ring-buffer is full when using the DROP OverflowStrategy 21 | */ 22 | public interface DropListener 23 | { 24 | void onDrop(); 25 | } 26 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/GeneratorType.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * Specifies the proxy generator 21 | */ 22 | public enum GeneratorType 23 | { 24 | /** 25 | * Use JDK reflection to create a proxy (creates garbage, has reflection overhead) 26 | */ 27 | JDK_REFLECTION("com.lmax.tool.disruptor.reflect.ReflectiveRingBufferProxyGenerator"), 28 | /** 29 | * Use a bytecode-generation library to create a proxy (garbage-free, no reflection overhead) 30 | */ 31 | BYTECODE_GENERATION("com.lmax.tool.disruptor.bytecode.GeneratedRingBufferProxyGenerator"); 32 | 33 | private final String generatorClassname; 34 | 35 | GeneratorType(final String generatorClassName) 36 | { 37 | this.generatorClassname = generatorClassName; 38 | } 39 | 40 | public String getGeneratorClassName() 41 | { 42 | return generatorClassname; 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/Invoker.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * Interface for a component that can invoke arguments on a target object 21 | */ 22 | public interface Invoker 23 | { 24 | void invokeWithArgumentHolder(final Object implementation, final Object argumentHolder); 25 | } 26 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/MessagePublicationListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * Interface for receiving notifications pre and post message publication 21 | */ 22 | public interface MessagePublicationListener 23 | { 24 | /** 25 | * Called before message is published to the ringbuffer 26 | */ 27 | void onPrePublish(); 28 | 29 | /** 30 | * Called after message is published to the ringbuffer. Will not be called if using DROP overflow strategy 31 | * and message is dropped. 32 | */ 33 | void onPostPublish(); 34 | } 35 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/NoMessagePublicationListener.java: -------------------------------------------------------------------------------- 1 | package com.lmax.tool.disruptor; 2 | 3 | /** 4 | * Default implementation of MessagePublicationListener 5 | */ 6 | public enum NoMessagePublicationListener implements MessagePublicationListener 7 | { 8 | INSTANCE; 9 | 10 | @Override 11 | public void onPrePublish() 12 | { 13 | 14 | } 15 | 16 | @Override 17 | public void onPostPublish() 18 | { 19 | 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/NoOpDropListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * Default implementation of DropListener 21 | */ 22 | public enum NoOpDropListener implements DropListener 23 | { 24 | INSTANCE; 25 | 26 | @Override 27 | public void onDrop() 28 | { 29 | // no-op 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/OverflowStrategy.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * Specifies the action to take when the ring-buffer is full 21 | */ 22 | public enum OverflowStrategy 23 | { 24 | /** 25 | * Block the publishing Thread 26 | */ 27 | BLOCK, 28 | /** 29 | * Discard the message and continue 30 | */ 31 | DROP 32 | } 33 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/ProxyMethodInvocation.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * A container for storing the arguments of a method invocation 21 | */ 22 | public final class ProxyMethodInvocation 23 | { 24 | private Invoker invoker; 25 | private Resetable argumentHolder; 26 | 27 | public Invoker getInvoker() 28 | { 29 | return invoker; 30 | } 31 | 32 | public void setInvoker(final Invoker invoker) 33 | { 34 | this.invoker = invoker; 35 | } 36 | 37 | public void setArgumentHolder(final Resetable argumentHolder) 38 | { 39 | this.argumentHolder = argumentHolder; 40 | } 41 | 42 | public Object getArgumentHolder() 43 | { 44 | return argumentHolder; 45 | } 46 | 47 | public void reset() 48 | { 49 | argumentHolder.reset(); 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/Resetable.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | /** 20 | * A generic interface for components that can be reset 21 | */ 22 | public interface Resetable 23 | { 24 | /** 25 | * Reset this component 26 | */ 27 | void reset(); 28 | } 29 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/RingBufferProxyEventFactory.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | import com.lmax.disruptor.EventFactory; 20 | 21 | /** 22 | * A Disruptor EventFactory used to create ring-buffer entries 23 | */ 24 | public final class RingBufferProxyEventFactory implements EventFactory 25 | { 26 | public static final EventFactory FACTORY = new RingBufferProxyEventFactory(); 27 | 28 | @Override 29 | public ProxyMethodInvocation newInstance() 30 | { 31 | return new ProxyMethodInvocation(); 32 | } 33 | } 34 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/RingBufferProxyGenerator.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | import com.lmax.disruptor.dsl.Disruptor; 20 | 21 | /** 22 | * Creates an implementation of the specified interface, backed by a Disruptor instance 23 | */ 24 | public interface RingBufferProxyGenerator 25 | { 26 | /** 27 | * Create a disruptor proxy with a single implementation instance 28 | * 29 | * @param the type of the implementation 30 | * @param definition the type of the implementation 31 | * @param disruptor a disruptor instance 32 | * @param overflowStrategy an indicator of what action should be taken when the ring-buffer is full 33 | * @param implementation the implementation object to be invoked by the Disruptor event handler 34 | * @return an implementation of type T 35 | */ 36 | T createRingBufferProxy(final Class definition, final Disruptor disruptor, 37 | final OverflowStrategy overflowStrategy, final T implementation); 38 | 39 | /** 40 | * Create a disruptor proxy with multiple implementation instances 41 | * 42 | * @param definition the type of the implementation 43 | * @param disruptor a disruptor instance 44 | * @param overflowStrategy an indicator of what action should be taken when the ring-buffer is full 45 | * @param implementations the implementation objects to be invoked by the Disruptor event handler (each on its own Thread) 46 | * @param the type of the implementation 47 | * @return an implementation of type T 48 | */ 49 | @SuppressWarnings("varargs") 50 | T createRingBufferProxy(final Class definition, final Disruptor disruptor, 51 | final OverflowStrategy overflowStrategy, final T... implementations); 52 | } 53 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/RingBufferProxyGeneratorFactory.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | import java.lang.reflect.Constructor; 20 | 21 | /** 22 | * A utility class to load a RingBufferProxyGenerator for the supplied type 23 | */ 24 | public final class RingBufferProxyGeneratorFactory 25 | { 26 | /** 27 | * Creates a RingBufferProxyGenerator 28 | * @param generatorType the type of generator 29 | * @return the RingBufferProxyGenerator 30 | */ 31 | public RingBufferProxyGenerator newProxy(final GeneratorType generatorType) 32 | { 33 | final ConfigurableValidator validateAsMuchAsPossibleValidator = new ConfigurableValidator(true, true); 34 | return newProxy(generatorType, validateAsMuchAsPossibleValidator); 35 | } 36 | 37 | /** 38 | * Creates a RingBufferProxyGenerator 39 | * @param generatorType the type of generator 40 | * @param config configure how much validation the ringBufferProxyGenerator should have 41 | * @return the RingBufferProxyGenerator 42 | */ 43 | public RingBufferProxyGenerator newProxy(final GeneratorType generatorType, final ValidationConfig config) 44 | { 45 | return newProxy(generatorType, config, NoOpDropListener.INSTANCE); 46 | } 47 | 48 | /** 49 | * Creates a RingBufferProxyGenerator 50 | * @param generatorType the type of generator 51 | * @param config configure how much validation the ringBufferProxyGenerator should have 52 | * @param dropListener the supplied DropListener will be notified if the ring-buffer is full when OverflowStrategy is DROP 53 | * @return the RingBufferProxyGenerator 54 | */ 55 | public RingBufferProxyGenerator newProxy(final GeneratorType generatorType, final ValidationConfig config, final DropListener dropListener) 56 | { 57 | return newProxy(generatorType, config, dropListener, NoMessagePublicationListener.INSTANCE); 58 | } 59 | 60 | /** 61 | * Creates a RingBufferProxyGenerator 62 | * @param generatorType the type of generator 63 | * @param config configure how much validation the ringBufferProxyGenerator should have 64 | * @param dropListener the supplied DropListener will be notified if the ring-buffer is full when OverflowStrategy is DROP 65 | * @param messagePublicationListener the supplied MessagePublicationListener will be notified before and after publishing 66 | * @return the RingBufferProxyGenerator 67 | */ 68 | public RingBufferProxyGenerator newProxy(final GeneratorType generatorType, final ValidationConfig config, 69 | final DropListener dropListener, final MessagePublicationListener messagePublicationListener) 70 | { 71 | try 72 | { 73 | final Class clazz = Class.forName(generatorType.getGeneratorClassName()); 74 | ConfigurableValidator validator = new ConfigurableValidator(config.validateProxyInterfaces(), config.validateExceptionHandler()); 75 | final Constructor constructorForRingBufferProxyGenerator = clazz.getConstructor(RingBufferProxyValidation.class, DropListener.class, MessagePublicationListener.class); 76 | return (RingBufferProxyGenerator) constructorForRingBufferProxyGenerator.newInstance(validator, dropListener, messagePublicationListener); 77 | } 78 | catch (Exception e) 79 | { 80 | throw new IllegalStateException(String.format("Unable to instantiate generator %s", 81 | generatorType.getGeneratorClassName()), e); 82 | } 83 | } 84 | 85 | /** 86 | * @deprecated prefer newProxy(). 87 | * 88 | * This method is left to preserve the existing behaviour now configurable in ValidationConfig. 89 | * 90 | * @param generatorType the type of generator 91 | * @return the RingBufferProxyGenerator 92 | */ 93 | @Deprecated 94 | public RingBufferProxyGenerator create(final GeneratorType generatorType) 95 | { 96 | final ConfigurableValidator backwardsCompatibleValidator = new ConfigurableValidator(false, true); 97 | return newProxy(generatorType, backwardsCompatibleValidator); 98 | } 99 | } 100 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/RingBufferProxyValidation.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | import com.lmax.disruptor.dsl.Disruptor; 20 | 21 | public interface RingBufferProxyValidation 22 | { 23 | void validateAll(Disruptor disruptor, Class disruptorProxyInterface); 24 | } 25 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/ValidationConfig.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.lmax.tool.disruptor; 17 | 18 | public interface ValidationConfig 19 | { 20 | enum ProxyInterface 21 | { 22 | REQUIRES_ANNOTATION(true), NO_ANNOTATION(false); 23 | 24 | private final boolean validateProxyInterfaces; 25 | 26 | ProxyInterface(final boolean validateProxyInterfaces) 27 | { 28 | this.validateProxyInterfaces = validateProxyInterfaces; 29 | } 30 | 31 | public boolean shouldValidateProxyInterfaces() 32 | { 33 | return validateProxyInterfaces; 34 | } 35 | } 36 | 37 | enum ExceptionHandler 38 | { 39 | REQUIRED(true), NOT_REQUIRED(false); 40 | 41 | private final boolean validateExceptionHandler; 42 | 43 | ExceptionHandler(final boolean validateExceptionHandler) 44 | { 45 | this.validateExceptionHandler = validateExceptionHandler; 46 | } 47 | 48 | public boolean shouldValidateExceptionHandler() 49 | { 50 | return validateExceptionHandler; 51 | } 52 | } 53 | 54 | boolean validateProxyInterfaces(); 55 | 56 | boolean validateExceptionHandler(); 57 | } 58 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/ValidationConfigBuilder.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.lmax.tool.disruptor; 17 | 18 | public final class ValidationConfigBuilder implements ValidationConfig 19 | { 20 | private boolean validateExceptionHandler = true; 21 | private boolean validateProxyInterfaces = false; 22 | 23 | @Override 24 | public boolean validateProxyInterfaces() 25 | { 26 | return validateProxyInterfaces; 27 | } 28 | 29 | public void validateProxyInterfaces(boolean validateProxyInterfaces) 30 | { 31 | this.validateProxyInterfaces = validateProxyInterfaces; 32 | } 33 | 34 | @Override 35 | public boolean validateExceptionHandler() 36 | { 37 | return validateExceptionHandler; 38 | } 39 | 40 | public void validateExceptionHandler(boolean validateExceptionHandler) 41 | { 42 | this.validateExceptionHandler = validateExceptionHandler; 43 | } 44 | } 45 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/bytecode/ArgumentHolderGenerator.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.bytecode; 18 | 19 | 20 | import com.lmax.tool.disruptor.Resetable; 21 | import javassist.CannotCompileException; 22 | import javassist.ClassPool; 23 | import javassist.CtClass; 24 | import javassist.CtNewConstructor; 25 | 26 | import java.util.HashMap; 27 | import java.util.Map; 28 | 29 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.addInterface; 30 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.createField; 31 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.createMethod; 32 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.getUniqueIdentifier; 33 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.makeClass; 34 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.makePublicFinal; 35 | 36 | final class ArgumentHolderGenerator 37 | { 38 | private final ArgumentHolderHelper helper = new ArgumentHolderHelper(); 39 | private final ClassPool classPool; 40 | 41 | private String generatedClassName; 42 | private Class generatedClass; 43 | private Map, Integer> parameterTypeCounts; 44 | private Map, Character> parameterFieldSuffix = new HashMap, Character>(); 45 | 46 | public ArgumentHolderGenerator(final ClassPool classPool) 47 | { 48 | this.classPool = classPool; 49 | } 50 | 51 | public void createArgumentHolderClass(final Class proxyInterface) 52 | { 53 | final CtClass ctClass = makeClass(classPool, "com.lmax.tool.disruptor.bytecode._argumentHolder_" + proxyInterface.getSimpleName() + "_" + getUniqueIdentifier()); 54 | 55 | parameterTypeCounts = helper.getParameterTypeCounts(proxyInterface); 56 | createFields(ctClass); 57 | createMethod(ctClass, generateResetMethod()); 58 | addInterface(ctClass, Resetable.class, classPool); 59 | 60 | try 61 | { 62 | ctClass.addConstructor(CtNewConstructor.defaultConstructor(ctClass)); 63 | makePublicFinal(ctClass); 64 | generatedClass = ctClass.toClass(ArgumentHolderGenerator.class); 65 | } 66 | catch (CannotCompileException e) 67 | { 68 | throw new RuntimeException("Cannot generate argument holder object", e); 69 | } 70 | 71 | generatedClassName = ctClass.getName(); 72 | 73 | } 74 | 75 | public void resetFieldNames() 76 | { 77 | parameterFieldSuffix.clear(); 78 | for (Class parameterType : parameterTypeCounts.keySet()) 79 | { 80 | parameterFieldSuffix.put(parameterType, 'a'); 81 | } 82 | } 83 | 84 | public String getNextFieldNameForType(final Class parameterType) 85 | { 86 | final Character suffix = parameterFieldSuffix.get(parameterType); 87 | parameterFieldSuffix.put(parameterType, (char) (suffix + 1)); 88 | return getSanitisedFieldName(parameterType) + "_" + suffix; 89 | } 90 | 91 | public String getGeneratedClassName() 92 | { 93 | return generatedClassName; 94 | } 95 | 96 | public Class getGeneratedClass() 97 | { 98 | return generatedClass; 99 | } 100 | 101 | private void createFields(final CtClass ctClass) 102 | { 103 | for (Map.Entry, Integer> entry : parameterTypeCounts.entrySet()) 104 | { 105 | final StringBuilder buffer = new StringBuilder(); 106 | final char suffix = 'a'; 107 | final int parameterCount = entry.getValue(); 108 | 109 | final Class parameterType = entry.getKey(); 110 | final String parameterTypeName = sanitiseParameterType(parameterType); 111 | for(int i = 0; i < parameterCount; i++) 112 | { 113 | buffer.setLength(0); 114 | buffer.append("public ").append(parameterTypeName).append(' '); 115 | buffer.append(sanitiseParameterName(parameterTypeName)); 116 | buffer.append('_').append((char) (suffix + i)); 117 | buffer.append(";\n"); 118 | createField(ctClass, buffer.toString()); 119 | } 120 | } 121 | } 122 | 123 | private String generateResetMethod() 124 | { 125 | final StringBuilder buffer = new StringBuilder(); 126 | 127 | buffer.append("public void reset() {\n"); 128 | for (Map.Entry, Integer> entry : parameterTypeCounts.entrySet()) 129 | { 130 | final char suffix = 'a'; 131 | final int parameterCount = entry.getValue(); 132 | 133 | final Class parameterType = entry.getKey(); 134 | if(!parameterType.isPrimitive()) 135 | { 136 | for(int i = 0; i < parameterCount; i++) 137 | { 138 | buffer.append(getSanitisedFieldName(parameterType)).append("_"). 139 | append((char) (suffix + i)).append(" = null;\n"); 140 | } 141 | } 142 | } 143 | buffer.append("}\n"); 144 | 145 | return buffer.toString(); 146 | } 147 | 148 | private static String getSanitisedFieldName(final Class parameterType) 149 | { 150 | return sanitiseParameterName(sanitiseParameterType(parameterType)); 151 | } 152 | 153 | private static String sanitiseParameterName(final String parameterTypeName) 154 | { 155 | return parameterTypeName.replace('[', '_').replace(']', '_').replace('.', '_'); 156 | } 157 | 158 | private static String sanitiseParameterType(final Class parameterType) 159 | { 160 | if(parameterType.isArray()) 161 | { 162 | return parameterType.getComponentType().getName() + "[]"; 163 | } 164 | 165 | return parameterType.getName(); 166 | } 167 | } 168 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/bytecode/ArgumentHolderHelper.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.bytecode; 18 | 19 | 20 | import java.lang.reflect.Method; 21 | import java.util.HashMap; 22 | import java.util.Map; 23 | 24 | import static java.lang.Math.max; 25 | 26 | final class ArgumentHolderHelper 27 | { 28 | public Map, Integer> getParameterTypeCounts(final Class type) 29 | { 30 | final Method[] methods = type.getMethods(); 31 | final Map, Integer> parameterTypeCounts = new HashMap, Integer>(); 32 | for (Method method : methods) 33 | { 34 | final Map, Integer> methodTypeCounts = new HashMap, Integer>(); 35 | final Class[] parameterTypes = method.getParameterTypes(); 36 | for (final Class parameterType : parameterTypes) 37 | { 38 | ensureTypeCountExists(methodTypeCounts, parameterType); 39 | 40 | methodTypeCounts.put(parameterType, methodTypeCounts.get(parameterType) + 1); 41 | } 42 | 43 | for (final Class parameterType : methodTypeCounts.keySet()) 44 | { 45 | if(parameterTypeCounts.containsKey(parameterType)) 46 | { 47 | parameterTypeCounts.put(parameterType, 48 | max(parameterTypeCounts.get(parameterType), 49 | methodTypeCounts.get(parameterType))); 50 | } 51 | else 52 | { 53 | parameterTypeCounts.put(parameterType, methodTypeCounts.get(parameterType)); 54 | } 55 | } 56 | } 57 | return parameterTypeCounts; 58 | } 59 | 60 | private void ensureTypeCountExists(final Map, Integer> parameterTypeCounts, final Class parameterType) 61 | { 62 | if(!parameterTypeCounts.containsKey(parameterType)) 63 | { 64 | parameterTypeCounts.put(parameterType, 0); 65 | } 66 | } 67 | } -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/bytecode/ByteCodeHelper.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.bytecode; 18 | 19 | import javassist.CannotCompileException; 20 | import javassist.ClassPool; 21 | import javassist.CtClass; 22 | import javassist.CtField; 23 | import javassist.CtMethod; 24 | import javassist.Modifier; 25 | import javassist.NotFoundException; 26 | 27 | import java.util.concurrent.atomic.AtomicInteger; 28 | 29 | enum ByteCodeHelper 30 | { 31 | INSTANCE; 32 | 33 | private static final AtomicInteger UNIQUE_GENERATED_CLASS_NAME_COUNTER = new AtomicInteger(); 34 | static final boolean DEBUG = false; 35 | 36 | static int getUniqueIdentifier() 37 | { 38 | return UNIQUE_GENERATED_CLASS_NAME_COUNTER.incrementAndGet(); 39 | } 40 | 41 | static CtClass makeClass(final ClassPool classPool, final String className) 42 | { 43 | if(DEBUG) 44 | { 45 | System.out.println("Making class " + className); 46 | } 47 | 48 | return classPool.makeClass(className); 49 | } 50 | 51 | static void createMethod(final CtClass ctClass, final String methodSrc) 52 | { 53 | if(DEBUG) 54 | { 55 | System.out.println("Creating method for class " + ctClass.getName()); 56 | System.out.println(methodSrc); 57 | } 58 | try 59 | { 60 | ctClass.addMethod(CtMethod.make(methodSrc, ctClass)); 61 | } 62 | catch (CannotCompileException e) 63 | { 64 | throw new RuntimeException("Unable to compile class", e); 65 | } 66 | } 67 | 68 | static void createField(final CtClass ctClass, final String fieldSrc) 69 | { 70 | if(DEBUG) 71 | { 72 | System.out.println("Creating field for class " + ctClass.getName()); 73 | System.out.println(fieldSrc); 74 | } 75 | try 76 | { 77 | ctClass.addField(CtField.make(fieldSrc, ctClass)); 78 | } 79 | catch (CannotCompileException e) 80 | { 81 | throw new RuntimeException("Unable to generate field: " + fieldSrc, e); 82 | } 83 | } 84 | 85 | static void makePublicFinal(final CtClass ctClass) 86 | { 87 | ctClass.setModifiers(Modifier.PUBLIC | Modifier.FINAL); 88 | } 89 | 90 | static void addInterface(final CtClass ctClass, final Class interfaceClass, 91 | final ClassPool classPool) 92 | { 93 | try 94 | { 95 | ctClass.addInterface(classPool.get(interfaceClass.getName())); 96 | } 97 | catch (NotFoundException e) 98 | { 99 | throw new RuntimeException("Cannot load class: " + interfaceClass.getName(), e); 100 | } 101 | } 102 | } 103 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/bytecode/GeneratedRingBufferProxyGenerator.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.bytecode; 18 | 19 | import com.lmax.disruptor.EventHandler; 20 | import com.lmax.disruptor.RingBuffer; 21 | import com.lmax.disruptor.dsl.Disruptor; 22 | import com.lmax.tool.disruptor.DropListener; 23 | import com.lmax.tool.disruptor.Invoker; 24 | import com.lmax.tool.disruptor.MessagePublicationListener; 25 | import com.lmax.tool.disruptor.NoMessagePublicationListener; 26 | import com.lmax.tool.disruptor.NoOpDropListener; 27 | import com.lmax.tool.disruptor.OverflowStrategy; 28 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 29 | import com.lmax.tool.disruptor.Resetable; 30 | import com.lmax.tool.disruptor.RingBufferProxyGenerator; 31 | import com.lmax.tool.disruptor.RingBufferProxyValidation; 32 | import com.lmax.tool.disruptor.handlers.ResetHandler; 33 | import javassist.CannotCompileException; 34 | import javassist.ClassPool; 35 | import javassist.CtClass; 36 | import javassist.CtConstructor; 37 | import javassist.CtMethod; 38 | import javassist.CtNewConstructor; 39 | import javassist.LoaderClassPath; 40 | import javassist.NotFoundException; 41 | 42 | import java.lang.reflect.Constructor; 43 | import java.lang.reflect.InvocationTargetException; 44 | import java.lang.reflect.Method; 45 | import java.util.HashMap; 46 | import java.util.Map; 47 | 48 | import static com.lmax.tool.disruptor.handlers.Handlers.createMultipleImplementationHandlerChain; 49 | import static com.lmax.tool.disruptor.handlers.Handlers.createSingleImplementationHandlerChain; 50 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.addInterface; 51 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.createField; 52 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.createMethod; 53 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.getUniqueIdentifier; 54 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.makeClass; 55 | import static com.lmax.tool.disruptor.bytecode.ByteCodeHelper.makePublicFinal; 56 | 57 | /** 58 | * {@inheritDoc} 59 | */ 60 | public final class GeneratedRingBufferProxyGenerator implements RingBufferProxyGenerator 61 | { 62 | private final ClassPool classPool; 63 | private final RingBufferProxyValidation validator; 64 | private final DropListener dropListener; 65 | private final MessagePublicationListener messagePublicationListener; 66 | 67 | public GeneratedRingBufferProxyGenerator(final RingBufferProxyValidation validator) 68 | { 69 | this(validator, NoOpDropListener.INSTANCE); 70 | 71 | } 72 | 73 | public GeneratedRingBufferProxyGenerator(final RingBufferProxyValidation validator, 74 | final DropListener dropListener) 75 | { 76 | this(validator, dropListener, NoMessagePublicationListener.INSTANCE); 77 | } 78 | 79 | public GeneratedRingBufferProxyGenerator(final RingBufferProxyValidation validator, 80 | final DropListener dropListener, 81 | final MessagePublicationListener messagePublicationListener) 82 | { 83 | this.validator = validator; 84 | this.dropListener = dropListener; 85 | this.messagePublicationListener = messagePublicationListener; 86 | classPool = GeneratedRingBufferProxyGenerator.configureClassPool(); 87 | } 88 | 89 | /** 90 | * {@inheritDoc} 91 | */ 92 | @SuppressWarnings("unchecked") 93 | @Override 94 | public T createRingBufferProxy(final Class proxyInterface, final Disruptor disruptor, final OverflowStrategy overflowStrategy, final T implementation) 95 | { 96 | validator.validateAll(disruptor, proxyInterface); 97 | 98 | disruptor.handleEventsWith(createSingleImplementationHandlerChain(implementation)); 99 | 100 | final ArgumentHolderGenerator argumentHolderGenerator = new ArgumentHolderGenerator(classPool); 101 | argumentHolderGenerator.createArgumentHolderClass(proxyInterface); 102 | 103 | prefillArgumentHolderObjects(disruptor.getRingBuffer(), argumentHolderGenerator); 104 | 105 | final Map methodToInvokerMap = createMethodToInvokerMap(proxyInterface, argumentHolderGenerator); 106 | 107 | return generateProxy(proxyInterface, disruptor.getRingBuffer(), methodToInvokerMap, overflowStrategy, argumentHolderGenerator); 108 | } 109 | 110 | /** 111 | * {@inheritDoc} 112 | */ 113 | @Override 114 | @SuppressWarnings("unchecked") 115 | public T createRingBufferProxy(final Class proxyInterface, final Disruptor disruptor, 116 | final OverflowStrategy overflowStrategy, final T... implementations) 117 | { 118 | validator.validateAll(disruptor, proxyInterface); 119 | 120 | if (implementations.length < 1) 121 | { 122 | throw new IllegalArgumentException("Must have at least one implementation"); 123 | } 124 | else if (implementations.length == 1) 125 | { 126 | return createRingBufferProxy(proxyInterface, disruptor, overflowStrategy, implementations[0]); 127 | } 128 | 129 | final EventHandler[] handlers = new EventHandler[implementations.length]; 130 | for (int i = 0; i < implementations.length; i++) 131 | { 132 | handlers[i] = createMultipleImplementationHandlerChain(implementations[i]); 133 | disruptor.handleEventsWith(handlers[i]); 134 | } 135 | disruptor.after(handlers).then(new ResetHandler()); 136 | 137 | final ArgumentHolderGenerator argumentHolderGenerator = new ArgumentHolderGenerator(classPool); 138 | argumentHolderGenerator.createArgumentHolderClass(proxyInterface); 139 | 140 | prefillArgumentHolderObjects(disruptor.getRingBuffer(), argumentHolderGenerator); 141 | 142 | final Map methodToInvokerMap = createMethodToInvokerMap(proxyInterface, argumentHolderGenerator); 143 | 144 | return generateProxy(proxyInterface, disruptor.getRingBuffer(), methodToInvokerMap, overflowStrategy, argumentHolderGenerator); 145 | } 146 | 147 | private void prefillArgumentHolderObjects(final RingBuffer ringBuffer, 148 | final ArgumentHolderGenerator argumentHolderGenerator) 149 | { 150 | final int bufferSize = ringBuffer.getBufferSize(); 151 | for(int i = 0; i < bufferSize; i++) 152 | { 153 | ringBuffer.get(i).setArgumentHolder((Resetable) instantiate(argumentHolderGenerator.getGeneratedClass(), new Class[] {})); 154 | } 155 | } 156 | 157 | private T generateProxy(final Class proxyInterface, final RingBuffer ringBuffer, 158 | final Map methodToInvokerMap, final OverflowStrategy overflowStrategy, 159 | final ArgumentHolderGenerator argumentHolderGenerator) 160 | { 161 | final CtClass ctClass = makeClass(classPool, "com.lmax.tool.disruptor.bytecode._proxy" + proxyInterface.getSimpleName() + '_' + 162 | getUniqueIdentifier()); 163 | 164 | addInterface(ctClass, proxyInterface, classPool); 165 | makePublicFinal(ctClass); 166 | 167 | createFields(methodToInvokerMap, ctClass); 168 | createConstructor(ctClass); 169 | 170 | for (final Method method : proxyInterface.getMethods()) 171 | { 172 | createRingBufferPublisherMethod(ctClass, method, methodToInvokerMap.get(method), overflowStrategy, argumentHolderGenerator); 173 | } 174 | 175 | return instantiateProxy(ctClass, ringBuffer); 176 | } 177 | 178 | private T instantiateProxy(final CtClass ctClass, final RingBuffer ringBuffer) 179 | { 180 | try 181 | { 182 | return instantiate(ctClass.toClass(GeneratedRingBufferProxyGenerator.class), new Class[]{RingBuffer.class, DropListener.class, 183 | MessagePublicationListener.class}, ringBuffer, dropListener, messagePublicationListener); 184 | } 185 | catch (CannotCompileException e) 186 | { 187 | throw new RuntimeException("Unable to compile class", e); 188 | } 189 | } 190 | 191 | @SuppressWarnings("unchecked") 192 | private T instantiate(final Class generatedClass, final Class[] constructorArgumentTypes, 193 | final Object... args) 194 | { 195 | try 196 | { 197 | 198 | final Constructor jdkConstructor = generatedClass.getConstructor(constructorArgumentTypes); 199 | return (T) jdkConstructor.newInstance(args); 200 | } 201 | catch (NoSuchMethodException e) 202 | { 203 | throw new RuntimeException("Unable to instantiate class", e); 204 | } 205 | catch (InstantiationException e) 206 | { 207 | throw new RuntimeException("Unable to instantiate class", e); 208 | } 209 | catch (IllegalAccessException e) 210 | { 211 | throw new RuntimeException("Unable to instantiate class", e); 212 | } 213 | catch (InvocationTargetException e) 214 | { 215 | throw new RuntimeException("Unable to instantiate class", e); 216 | } 217 | } 218 | 219 | private void createConstructor(final CtClass ctClass) 220 | { 221 | try 222 | { 223 | final CtConstructor ctConstructor = new CtConstructor( 224 | new CtClass[]{ 225 | classPool.getCtClass(RingBuffer.class.getName()), 226 | classPool.getCtClass(DropListener.class.getName()), 227 | classPool.getCtClass(MessagePublicationListener.class.getName()) 228 | }, ctClass); 229 | ctConstructor.setBody("{ringBuffer = $1;dropListener = $2;messagePublicationListener = $3;}"); 230 | ctClass.addConstructor(ctConstructor); 231 | } 232 | catch (NotFoundException e) 233 | { 234 | throw new RuntimeException("Unable to create constructor", e); 235 | } 236 | catch (CannotCompileException e) 237 | { 238 | throw new RuntimeException("Unable to create constructor", e); 239 | } 240 | } 241 | 242 | private void createFields(final Map methodToInvokerMap, final CtClass ctClass) 243 | { 244 | createField(ctClass, "private final " + RingBuffer.class.getName() + " ringBuffer;"); 245 | createField(ctClass, "private final " + DropListener.class.getName() + " dropListener;"); 246 | createField(ctClass, "private final " + MessagePublicationListener.class.getName() + " messagePublicationListener;"); 247 | 248 | for (final Method method : methodToInvokerMap.keySet()) 249 | { 250 | final Invoker invoker = methodToInvokerMap.get(method); 251 | 252 | createField(ctClass, "private final " + invoker.getClass().getName() + " _" + 253 | invoker.getClass().getName().replace(".", "_") + " = new " + invoker.getClass().getName() + "();"); 254 | } 255 | } 256 | 257 | private void createRingBufferPublisherMethod(final CtClass ctClass, final Method method, final Invoker invoker, 258 | final OverflowStrategy overflowStrategy, 259 | final ArgumentHolderGenerator argumentHolderGenerator) 260 | { 261 | final StringBuilder methodSrc = new StringBuilder("public void ").append(method.getName()).append("("); 262 | final Class[] parameterTypes = method.getParameterTypes(); 263 | char paramId = 'a'; 264 | for (int i = 0, parameterTypesLength = parameterTypes.length; i < parameterTypesLength; i++) 265 | { 266 | final Class parameterType = parameterTypes[i]; 267 | 268 | if (parameterType.isArray()) 269 | { 270 | methodSrc.append(parameterType.getComponentType().getName()).append("[] ").append(paramId++); 271 | } 272 | else 273 | { 274 | methodSrc.append(parameterType.getName()).append(' ').append(paramId++); 275 | } 276 | 277 | if (i < parameterTypesLength - 1) 278 | { 279 | methodSrc.append(", "); 280 | } 281 | } 282 | methodSrc.append(")\n{\n"); 283 | 284 | methodSrc.append("messagePublicationListener.onPrePublish();\n"); 285 | 286 | handleOverflowStrategy(overflowStrategy, methodSrc); 287 | 288 | methodSrc.append("final long sequence = ringBuffer.next();\n").append("try\n"). 289 | append("{\n"). 290 | append("final ProxyMethodInvocation proxyMethodInvocation = (ProxyMethodInvocation) ringBuffer.get(sequence);\n"); 291 | 292 | final String argumentHolderClass = argumentHolderGenerator.getGeneratedClassName(); 293 | 294 | methodSrc.append("final ").append(argumentHolderClass).append(" holder = ("). 295 | append(argumentHolderClass).append(") proxyMethodInvocation.getArgumentHolder();\n"); 296 | 297 | argumentHolderGenerator.resetFieldNames(); 298 | 299 | for (int i = 0; i < parameterTypes.length; i++) 300 | { 301 | final Class parameterType = parameterTypes[i]; 302 | final String holderField = argumentHolderGenerator.getNextFieldNameForType(parameterType); 303 | methodSrc.append("holder.").append(holderField).append(" = ").append((char) ('a' + i)).append(";"); 304 | } 305 | 306 | methodSrc.append("proxyMethodInvocation.setInvoker(_").append(invoker.getClass().getName().replace(".", "_")). 307 | append(");\n"). 308 | append("}\n"). 309 | append("catch(Throwable t){t.printStackTrace();}\n"). 310 | append("finally\n"). 311 | append("{\n"). 312 | append("ringBuffer.publish(sequence);\n"). 313 | append("messagePublicationListener.onPostPublish();\n"). 314 | append("}\n"); 315 | methodSrc.append("}\n"); 316 | 317 | createMethod(ctClass, methodSrc.toString()); 318 | } 319 | 320 | private void handleOverflowStrategy(final OverflowStrategy overflowStrategy, final StringBuilder methodSrc) 321 | { 322 | if (overflowStrategy == OverflowStrategy.DROP) 323 | { 324 | methodSrc.append("if(!ringBuffer.hasAvailableCapacity(1))\n"); 325 | methodSrc.append("{"); 326 | methodSrc.append("dropListener.onDrop();"); 327 | methodSrc.append("return;\n"); 328 | methodSrc.append("}\n"); 329 | } 330 | } 331 | 332 | @SuppressWarnings("unchecked") 333 | private Invoker generateInvoker(final Class proxyInterface, final Method method, final ArgumentHolderGenerator argumentHolderGenerator) 334 | { 335 | final StringBuilder invokerClassName = new StringBuilder("com.lmax.tool.disruptor.bytecode._invoker").append(proxyInterface.getSimpleName()). 336 | append(method.getName()).append('_').append(getUniqueIdentifier()); 337 | 338 | final Class[] parameterTypes = method.getParameterTypes(); 339 | for (final Class paramType : parameterTypes) 340 | { 341 | if (paramType.isArray()) 342 | { 343 | invokerClassName.append(paramType.getComponentType().getSimpleName()).append("Array"); 344 | } 345 | else 346 | { 347 | invokerClassName.append(paramType.getSimpleName()); 348 | } 349 | } 350 | 351 | final CtClass ctClass = makeClass(classPool, invokerClassName.toString()); 352 | addInterface(ctClass, Invoker.class, classPool); 353 | makePublicFinal(ctClass); 354 | 355 | final StringBuilder methodSrc = new StringBuilder("public void invokeWithArgumentHolder(").append("Object"). 356 | append(" implementation, Object argumentHolder) {\n"); 357 | 358 | if (parameterTypes.length != 0) 359 | { 360 | methodSrc.append("final ").append(argumentHolderGenerator.getGeneratedClassName()).append(" holder = "). 361 | append("(").append(argumentHolderGenerator.getGeneratedClassName()).append(") argumentHolder;\n"); 362 | } 363 | 364 | methodSrc.append("((").append(proxyInterface.getName().replace('$', '.')). 365 | append(")implementation).").append(method.getName()).append('('); 366 | 367 | 368 | appendParametersFromArgumentHolder(parameterTypes, methodSrc, argumentHolderGenerator); 369 | 370 | methodSrc.append(");\n}\n"); 371 | 372 | return generateInvoker(ctClass, methodSrc); 373 | } 374 | 375 | private Invoker generateInvoker(final CtClass ctClass, final StringBuilder methodSrc) 376 | { 377 | try 378 | { 379 | ctClass.addMethod(CtMethod.make(methodSrc.toString(), ctClass)); 380 | ctClass.addConstructor(CtNewConstructor.defaultConstructor(ctClass)); 381 | final Class generatedClass = ctClass.toClass(GeneratedRingBufferProxyGenerator.class); 382 | return (Invoker) generatedClass.newInstance(); 383 | } 384 | catch (CannotCompileException e) 385 | { 386 | throw new RuntimeException("Unable to compile generated source: " + methodSrc, e); 387 | } 388 | catch (InstantiationException e) 389 | { 390 | throw new RuntimeException("Unable to compile generated source: " + methodSrc, e); 391 | } 392 | catch (IllegalAccessException e) 393 | { 394 | throw new RuntimeException("Unable to compile generated source: " + methodSrc, e); 395 | } 396 | } 397 | 398 | private Map createMethodToInvokerMap(final Class proxyInterface, 399 | final ArgumentHolderGenerator argumentHolderGenerator) 400 | { 401 | final Map methodToInvokerMap = new HashMap(); 402 | 403 | final Method[] declaredMethods = proxyInterface.getMethods(); 404 | 405 | for (Method declaredMethod : declaredMethods) 406 | { 407 | methodToInvokerMap.put(declaredMethod, generateInvoker(proxyInterface, declaredMethod, argumentHolderGenerator)); 408 | } 409 | 410 | return methodToInvokerMap; 411 | } 412 | 413 | private void appendParametersFromArgumentHolder(final Class[] parameterTypes, final StringBuilder methodSrc, 414 | final ArgumentHolderGenerator argumentHolderGenerator) 415 | { 416 | argumentHolderGenerator.resetFieldNames(); 417 | for (int i = 0; i < parameterTypes.length; i++) 418 | { 419 | final Class parameterType = parameterTypes[i]; 420 | methodSrc.append("holder.").append(argumentHolderGenerator.getNextFieldNameForType(parameterType)); 421 | 422 | if (i < parameterTypes.length - 1) 423 | { 424 | methodSrc.append(", "); 425 | } 426 | } 427 | } 428 | 429 | private static ClassPool configureClassPool() 430 | { 431 | final ClassPool classPool = new ClassPool(ClassPool.getDefault()); 432 | classPool.appendClassPath(new LoaderClassPath(Thread.currentThread().getContextClassLoader())); 433 | classPool.appendClassPath(new LoaderClassPath(ClassLoader.getSystemClassLoader())); 434 | classPool.importPackage("com.lmax.tool.disruptor"); 435 | return classPool; 436 | } 437 | } -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/handlers/BatchSizeReportingEventHandler.java: -------------------------------------------------------------------------------- 1 | package com.lmax.tool.disruptor.handlers; 2 | 3 | import com.lmax.disruptor.EventHandler; 4 | import com.lmax.tool.disruptor.BatchSizeListener; 5 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 6 | 7 | class BatchSizeReportingEventHandler implements EventHandler 8 | { 9 | private final EventHandler delegate; 10 | private final BatchSizeListener batchSizeListener; 11 | 12 | private int batchCounter; 13 | 14 | BatchSizeReportingEventHandler(final BatchSizeListener batchSizeListener, final EventHandler delegate) 15 | { 16 | this.batchSizeListener = batchSizeListener; 17 | this.delegate = delegate; 18 | } 19 | 20 | @Override 21 | public void onEvent(final ProxyMethodInvocation event, final long sequence, final boolean endOfBatch) throws Exception 22 | { 23 | try 24 | { 25 | ++batchCounter; 26 | delegate.onEvent(event, sequence, endOfBatch); 27 | } 28 | finally 29 | { 30 | if (endOfBatch) 31 | { 32 | batchSizeListener.onEndOfBatch(batchCounter); 33 | batchCounter = 0; 34 | } 35 | } 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/handlers/EndOfBatchEventHandler.java: -------------------------------------------------------------------------------- 1 | package com.lmax.tool.disruptor.handlers; 2 | 3 | import com.lmax.disruptor.EventHandler; 4 | import com.lmax.tool.disruptor.BatchListener; 5 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 6 | 7 | /** 8 | * A Disruptor event handler that will notify the supplied batchListener at the end of a batch 9 | */ 10 | final class EndOfBatchEventHandler implements EventHandler 11 | { 12 | private final BatchListener batchListener; 13 | private final EventHandler delegate; 14 | 15 | public EndOfBatchEventHandler(final BatchListener batchListener, final EventHandler delegate) 16 | { 17 | this.batchListener = batchListener; 18 | this.delegate = delegate; 19 | } 20 | 21 | @Override 22 | public void onEvent(final ProxyMethodInvocation event, final long sequence, final boolean endOfBatch) throws Exception 23 | { 24 | delegate.onEvent(event, sequence, endOfBatch); 25 | 26 | if (endOfBatch) 27 | { 28 | batchListener.onEndOfBatch(); 29 | } 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/handlers/Handlers.java: -------------------------------------------------------------------------------- 1 | package com.lmax.tool.disruptor.handlers; 2 | 3 | import com.lmax.disruptor.EventHandler; 4 | import com.lmax.tool.disruptor.BatchListener; 5 | import com.lmax.tool.disruptor.BatchSizeListener; 6 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 7 | 8 | public class Handlers 9 | { 10 | public static EventHandler createSingleImplementationHandlerChain(final T implementation) 11 | { 12 | return createHandlers(implementation, true); 13 | } 14 | 15 | public static EventHandler createMultipleImplementationHandlerChain(final T implementation) 16 | { 17 | return createHandlers(implementation, false); 18 | } 19 | 20 | private static EventHandler createHandlers(final T implementation, final boolean reset) 21 | { 22 | EventHandler handler = new InvokerEventHandler(implementation, reset); 23 | if (implementation instanceof BatchListener) 24 | { 25 | handler = new EndOfBatchEventHandler((BatchListener) implementation, handler); 26 | } 27 | if (implementation instanceof BatchSizeListener) 28 | { 29 | handler = new BatchSizeReportingEventHandler((BatchSizeListener) implementation, handler); 30 | } 31 | return handler; 32 | } 33 | } 34 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/handlers/InvokerEventHandler.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.handlers; 18 | 19 | import com.lmax.disruptor.EventHandler; 20 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 21 | 22 | /** 23 | * A Disruptor event handler that will invoke an operation on the supplied implementation 24 | * @param the type of the implementation object to be invoked 25 | */ 26 | final class InvokerEventHandler implements EventHandler 27 | { 28 | private final T implementation; 29 | private final boolean reset; 30 | 31 | public InvokerEventHandler(final T implementation, boolean reset) 32 | { 33 | this.implementation = implementation; 34 | this.reset = reset; 35 | } 36 | 37 | public InvokerEventHandler(final T implementation) 38 | { 39 | this(implementation, true); 40 | } 41 | 42 | @Override 43 | public void onEvent(final ProxyMethodInvocation event, final long sequence, final boolean endOfBatch) throws Exception 44 | { 45 | event.getInvoker().invokeWithArgumentHolder(implementation, event.getArgumentHolder()); 46 | if (reset) 47 | { 48 | event.reset(); 49 | } 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/handlers/ResetHandler.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.handlers; 18 | 19 | import com.lmax.disruptor.EventHandler; 20 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 21 | 22 | /** 23 | * A Disruptor EventHandler that will reset the ring-buffer entry 24 | */ 25 | public final class ResetHandler implements EventHandler 26 | { 27 | @Override 28 | public void onEvent(final ProxyMethodInvocation event, final long sequence, final boolean endOfBatch) throws Exception 29 | { 30 | event.reset(); 31 | } 32 | } 33 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/reflect/ObjectArrayHolder.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.reflect; 18 | 19 | import com.lmax.tool.disruptor.Resetable; 20 | 21 | final class ObjectArrayHolder implements Resetable 22 | { 23 | private Object[] args; 24 | 25 | public void set(final Object[] args) 26 | { 27 | this.args = args; 28 | } 29 | 30 | public Object[] get() 31 | { 32 | return args; 33 | } 34 | 35 | @Override 36 | public void reset() 37 | { 38 | args = null; 39 | } 40 | } 41 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/reflect/ReflectiveMethodInvoker.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.reflect; 18 | 19 | import com.lmax.tool.disruptor.Invoker; 20 | 21 | import java.lang.reflect.InvocationTargetException; 22 | import java.lang.reflect.Method; 23 | 24 | final class ReflectiveMethodInvoker implements Invoker 25 | { 26 | private final Method method; 27 | 28 | public ReflectiveMethodInvoker(final Method method) 29 | { 30 | this.method = method; 31 | } 32 | 33 | @Override 34 | public void invokeWithArgumentHolder(final Object implementation, final Object argumentHolder) 35 | { 36 | try 37 | { 38 | final int numberOfParameters = method.getParameterTypes().length; 39 | if(numberOfParameters == 0) 40 | { 41 | method.invoke(implementation, (Object[]) null); 42 | } 43 | else 44 | { 45 | method.invoke(implementation, ((ObjectArrayHolder) argumentHolder).get()); 46 | } 47 | } 48 | catch (IllegalAccessException e) 49 | { 50 | throw new RuntimeException("Failed to invoke", e); 51 | } 52 | catch (InvocationTargetException e) 53 | { 54 | throw new RuntimeException("Failed to invoke", e); 55 | } 56 | } 57 | } 58 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/reflect/ReflectiveRingBufferInvocationHandler.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.reflect; 18 | 19 | import com.lmax.disruptor.RingBuffer; 20 | import com.lmax.tool.disruptor.DropListener; 21 | import com.lmax.tool.disruptor.Invoker; 22 | import com.lmax.tool.disruptor.MessagePublicationListener; 23 | import com.lmax.tool.disruptor.OverflowStrategy; 24 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 25 | 26 | import java.lang.reflect.InvocationHandler; 27 | import java.lang.reflect.Method; 28 | import java.util.Map; 29 | 30 | final class ReflectiveRingBufferInvocationHandler implements InvocationHandler 31 | { 32 | private static final String TO_STRING_METHOD_NAME = "toString"; 33 | 34 | private final RingBuffer ringBuffer; 35 | private final Map methodToInvokerMap; 36 | private final OverflowStrategy overflowStrategy; 37 | private final DropListener dropListener; 38 | private final MessagePublicationListener messagePublicationListener; 39 | 40 | ReflectiveRingBufferInvocationHandler(final RingBuffer ringBuffer, 41 | final Map methodToInvokerMap, 42 | final OverflowStrategy overflowStrategy, 43 | final DropListener dropListener, 44 | final MessagePublicationListener messagePublicationListener) 45 | { 46 | this.ringBuffer = ringBuffer; 47 | this.methodToInvokerMap = methodToInvokerMap; 48 | this.overflowStrategy = overflowStrategy; 49 | this.dropListener = dropListener; 50 | this.messagePublicationListener = messagePublicationListener; 51 | } 52 | 53 | @Override 54 | public Object invoke(final Object proxy, final Method method, final Object[] args) throws Throwable 55 | { 56 | if (TO_STRING_METHOD_NAME.equals(method.getName()) && args == null) 57 | { 58 | return this.toString(); 59 | } 60 | 61 | messagePublicationListener.onPrePublish(); 62 | if(overflowStrategy == OverflowStrategy.DROP && !ringBuffer.hasAvailableCapacity(1)) 63 | { 64 | dropListener.onDrop(); 65 | return null; 66 | } 67 | final long sequence = ringBuffer.next(); 68 | try 69 | { 70 | final ProxyMethodInvocation proxyMethodInvocation = ringBuffer.get(sequence); 71 | final ObjectArrayHolder argumentHolder = (ObjectArrayHolder) proxyMethodInvocation.getArgumentHolder(); 72 | if(args != null) 73 | { 74 | final Object[] copyOfArgs = new Object[args.length]; 75 | System.arraycopy(args, 0, copyOfArgs, 0, args.length); 76 | argumentHolder.set(copyOfArgs); 77 | } 78 | else 79 | { 80 | argumentHolder.set(null); 81 | } 82 | proxyMethodInvocation.setInvoker(methodToInvokerMap.get(method)); 83 | } 84 | finally 85 | { 86 | ringBuffer.publish(sequence); 87 | messagePublicationListener.onPostPublish(); 88 | } 89 | return null; 90 | } 91 | } 92 | -------------------------------------------------------------------------------- /src/main/java/com/lmax/tool/disruptor/reflect/ReflectiveRingBufferProxyGenerator.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.reflect; 18 | 19 | import com.lmax.disruptor.EventHandler; 20 | import com.lmax.disruptor.RingBuffer; 21 | import com.lmax.disruptor.dsl.Disruptor; 22 | import com.lmax.tool.disruptor.DropListener; 23 | import com.lmax.tool.disruptor.Invoker; 24 | import com.lmax.tool.disruptor.MessagePublicationListener; 25 | import com.lmax.tool.disruptor.NoMessagePublicationListener; 26 | import com.lmax.tool.disruptor.NoOpDropListener; 27 | import com.lmax.tool.disruptor.OverflowStrategy; 28 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 29 | import com.lmax.tool.disruptor.handlers.ResetHandler; 30 | import com.lmax.tool.disruptor.RingBufferProxyGenerator; 31 | import com.lmax.tool.disruptor.RingBufferProxyValidation; 32 | 33 | import java.lang.reflect.Method; 34 | import java.util.Map; 35 | import java.util.concurrent.ConcurrentHashMap; 36 | 37 | import static com.lmax.tool.disruptor.handlers.Handlers.createMultipleImplementationHandlerChain; 38 | import static com.lmax.tool.disruptor.handlers.Handlers.createSingleImplementationHandlerChain; 39 | import static java.lang.Thread.currentThread; 40 | import static java.lang.reflect.Proxy.newProxyInstance; 41 | 42 | /** 43 | * {@inheritDoc} 44 | */ 45 | public final class ReflectiveRingBufferProxyGenerator implements RingBufferProxyGenerator 46 | { 47 | private final RingBufferProxyValidation validator; 48 | private final DropListener dropListener; 49 | private final MessagePublicationListener messagePublicationListener; 50 | 51 | public ReflectiveRingBufferProxyGenerator(final RingBufferProxyValidation validator) 52 | { 53 | this(validator, NoOpDropListener.INSTANCE, NoMessagePublicationListener.INSTANCE); 54 | } 55 | 56 | public ReflectiveRingBufferProxyGenerator(final RingBufferProxyValidation validator, 57 | final DropListener dropListener) 58 | { 59 | this(validator, dropListener, NoMessagePublicationListener.INSTANCE); 60 | } 61 | 62 | public ReflectiveRingBufferProxyGenerator(RingBufferProxyValidation validator, DropListener dropListener, MessagePublicationListener messagePublicationListener) 63 | { 64 | this.validator = validator; 65 | this.dropListener = dropListener; 66 | this.messagePublicationListener = messagePublicationListener; 67 | } 68 | 69 | 70 | /** 71 | * {@inheritDoc} 72 | */ 73 | @SuppressWarnings("unchecked") 74 | @Override 75 | public T createRingBufferProxy(final Class proxyInterface, final Disruptor disruptor, 76 | final OverflowStrategy overflowStrategy, final T implementation) 77 | { 78 | validator.validateAll(disruptor, proxyInterface); 79 | 80 | final ReflectiveRingBufferInvocationHandler invocationHandler = 81 | createInvocationHandler(proxyInterface, disruptor, overflowStrategy, dropListener, 82 | messagePublicationListener); 83 | preallocateArgumentHolders(disruptor.getRingBuffer()); 84 | 85 | disruptor.handleEventsWith(createSingleImplementationHandlerChain(implementation)); 86 | 87 | return generateProxy(proxyInterface, invocationHandler); 88 | } 89 | 90 | /** 91 | * {@inheritDoc} 92 | */ 93 | @SuppressWarnings("unchecked") 94 | @Override 95 | public T createRingBufferProxy(final Class proxyInterface, final Disruptor disruptor, 96 | final OverflowStrategy overflowStrategy, final T... implementations) 97 | { 98 | validator.validateAll(disruptor, proxyInterface); 99 | 100 | if (implementations.length < 1) 101 | { 102 | throw new IllegalArgumentException("Must have at least one implementation"); 103 | } 104 | else if (implementations.length == 1) 105 | { 106 | return createRingBufferProxy(proxyInterface, disruptor, overflowStrategy, implementations[0]); 107 | } 108 | 109 | final ReflectiveRingBufferInvocationHandler invocationHandler = 110 | createInvocationHandler(proxyInterface, disruptor, overflowStrategy, dropListener, messagePublicationListener); 111 | preallocateArgumentHolders(disruptor.getRingBuffer()); 112 | 113 | final EventHandler[] handlers = new EventHandler[implementations.length]; 114 | for (int i = 0; i < implementations.length; i++) 115 | { 116 | handlers[i] = createMultipleImplementationHandlerChain(implementations[i]); 117 | disruptor.handleEventsWith(handlers[i]); 118 | } 119 | disruptor.after(handlers).then(new ResetHandler()); 120 | 121 | return generateProxy(proxyInterface, invocationHandler); 122 | } 123 | 124 | private static ReflectiveRingBufferInvocationHandler createInvocationHandler( 125 | final Class proxyInterface, 126 | final Disruptor disruptor, 127 | final OverflowStrategy overflowStrategy, 128 | final DropListener dropListener, MessagePublicationListener messagePublicationListener) 129 | { 130 | final Map methodToInvokerMap = createMethodToInvokerMap(proxyInterface); 131 | return new ReflectiveRingBufferInvocationHandler(disruptor.getRingBuffer(), methodToInvokerMap, overflowStrategy, dropListener, 132 | messagePublicationListener); 133 | } 134 | 135 | @SuppressWarnings("unchecked") 136 | private static T generateProxy(final Class proxyInterface, final ReflectiveRingBufferInvocationHandler invocationHandler) 137 | { 138 | return (T) newProxyInstance(currentThread().getContextClassLoader(), new Class[]{proxyInterface}, invocationHandler); 139 | } 140 | 141 | private static void preallocateArgumentHolders(final RingBuffer ringBuffer) 142 | { 143 | final int bufferSize = ringBuffer.getBufferSize(); 144 | for(int i = 0; i < bufferSize; i++) 145 | { 146 | ringBuffer.get(i).setArgumentHolder(new ObjectArrayHolder()); 147 | } 148 | } 149 | 150 | private static Map createMethodToInvokerMap(final Class proxyInterface) 151 | { 152 | final Map methodToInvokerMap = new ConcurrentHashMap(); 153 | final Method[] declaredMethods = proxyInterface.getMethods(); 154 | 155 | for (final Method declaredMethod : declaredMethods) 156 | { 157 | methodToInvokerMap.put(declaredMethod, new ReflectiveMethodInvoker(declaredMethod)); 158 | } 159 | 160 | return methodToInvokerMap; 161 | } 162 | 163 | } -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/AbstractRingBufferProxyGeneratorTest.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | import com.lmax.disruptor.ExceptionHandler; 20 | import com.lmax.disruptor.FatalExceptionHandler; 21 | import com.lmax.disruptor.RingBuffer; 22 | import com.lmax.disruptor.dsl.Disruptor; 23 | import org.junit.Test; 24 | 25 | import java.util.concurrent.CountDownLatch; 26 | import java.util.concurrent.ExecutorService; 27 | import java.util.concurrent.Executors; 28 | import java.util.concurrent.ScheduledThreadPoolExecutor; 29 | import java.util.concurrent.TimeUnit; 30 | import java.util.concurrent.atomic.AtomicInteger; 31 | 32 | import static com.lmax.tool.disruptor.ValidationConfig.ExceptionHandler.NOT_REQUIRED; 33 | import static com.lmax.tool.disruptor.ValidationConfig.ProxyInterface.NO_ANNOTATION; 34 | import static org.hamcrest.CoreMatchers.equalTo; 35 | import static org.hamcrest.CoreMatchers.not; 36 | import static org.hamcrest.CoreMatchers.is; 37 | import static org.junit.Assert.assertThat; 38 | import static org.junit.Assert.assertTrue; 39 | 40 | public abstract class AbstractRingBufferProxyGeneratorTest 41 | { 42 | private static final int ITERATIONS = 3; 43 | private final GeneratorType generatorType; 44 | private final CountingDropListener dropListener = new CountingDropListener(); 45 | private final CountingMessagePublicationListener messagePublicationListener = new CountingMessagePublicationListener(); 46 | 47 | protected AbstractRingBufferProxyGeneratorTest(final GeneratorType generatorType) 48 | { 49 | this.generatorType = generatorType; 50 | } 51 | 52 | private static final class ConcreteClass 53 | { 54 | 55 | } 56 | 57 | @Test(expected = IllegalArgumentException.class) 58 | public void shouldBlowUpIfSuppliedClassIsNotAnInterface() throws Exception 59 | { 60 | final Disruptor disruptor = 61 | createDisruptor(Executors.newSingleThreadExecutor(), 1024); 62 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 63 | final RingBufferProxyGenerator ringBufferProxyGenerator = generatorFactory.newProxy(generatorType, new ConfigurableValidator(false, true)); 64 | ringBufferProxyGenerator.createRingBufferProxy(ConcreteClass.class, disruptor, OverflowStrategy.DROP, new ConcreteClass()); 65 | } 66 | 67 | @Test(expected = IllegalStateException.class) 68 | public void shouldThrowExceptionIfDisruptorInstanceDoesNotHaveAnExceptionHandler() throws Exception 69 | { 70 | final Disruptor disruptor = 71 | new Disruptor(new RingBufferProxyEventFactory(), 1024, Executors.newSingleThreadExecutor()); 72 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 73 | final RingBufferProxyGenerator ringBufferProxyGenerator = generatorFactory.newProxy(generatorType); 74 | final ListenerImpl implementation = new ListenerImpl(); 75 | ringBufferProxyGenerator.createRingBufferProxy(Listener.class, disruptor, OverflowStrategy.DROP, implementation); 76 | } 77 | 78 | @SuppressWarnings("deprecation") 79 | @Test 80 | public void shouldNotValidateRingBufferProxyAnnotationByDefaultToPreserveBackwardsCompatibility() throws Exception 81 | { 82 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 83 | final RingBufferProxyGenerator generator = generatorFactory.create(generatorType); 84 | generator.createRingBufferProxy(MyDisruptorProxyWithoutTheDisruptorAnnotation.class, 85 | createDisruptor(Executors.newSingleThreadExecutor(), 1024), OverflowStrategy.DROP, new StubImplementationForInterface()); 86 | } 87 | 88 | @Test(expected = IllegalArgumentException.class) 89 | public void shouldValidateRingBufferProxyAnnotationIfConfiguredThatWay() throws Exception 90 | { 91 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 92 | final RingBufferProxyGenerator generator = generatorFactory.newProxy(generatorType, new ConfigurableValidator(true, false)); 93 | generator.createRingBufferProxy(MyDisruptorProxyWithoutTheDisruptorAnnotation.class, 94 | createDisruptor(Executors.newSingleThreadExecutor(), 1024), OverflowStrategy.DROP, new StubImplementationForInterface()); 95 | } 96 | 97 | @SuppressWarnings("deprecation") 98 | @Test(expected = IllegalStateException.class) 99 | public void shouldValidateExceptionHandlerByDefaultToPreserveBackwardsCompatibility() throws Exception 100 | { 101 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 102 | final RingBufferProxyGenerator generator = generatorFactory.create(generatorType); 103 | final Disruptor disruptor = new Disruptor(new RingBufferProxyEventFactory(), 1024, Executors.newSingleThreadExecutor()); 104 | generator.createRingBufferProxy(MyDisruptorProxyWithoutTheDisruptorAnnotation.class, disruptor, 105 | OverflowStrategy.DROP, new StubImplementationForInterface()); 106 | } 107 | 108 | @Test 109 | public void shouldNotValidateExceptionHandlerIfConfiguredThatWay() throws Exception 110 | { 111 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 112 | final RingBufferProxyGenerator generator = generatorFactory.newProxy(generatorType, new ConfigurableValidator(false, false)); 113 | final Disruptor disruptor = new Disruptor(new RingBufferProxyEventFactory(), 1024, Executors.newSingleThreadExecutor()); 114 | generator.createRingBufferProxy(MyDisruptorProxyWithoutTheDisruptorAnnotation.class, disruptor, 115 | OverflowStrategy.DROP, new StubImplementationForInterface()); 116 | } 117 | 118 | @SuppressWarnings("StatementWithEmptyBody") 119 | @Test 120 | public void shouldProxy() 121 | { 122 | final Disruptor disruptor = createDisruptor(Executors.newSingleThreadExecutor(), 1024); 123 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 124 | final RingBufferProxyGenerator ringBufferProxyGenerator = generatorFactory.newProxy(generatorType); 125 | 126 | final ListenerImpl implementation = new ListenerImpl(); 127 | final Listener listener = ringBufferProxyGenerator.createRingBufferProxy(Listener.class, disruptor, OverflowStrategy.DROP, implementation); 128 | disruptor.start(); 129 | 130 | for(int i = 0; i < 3; i++) 131 | { 132 | listener.onString("single string " + i); 133 | listener.onFloatAndInt((float) i, i); 134 | listener.onVoid(); 135 | listener.onObjectArray(new Double[]{(double) i}); 136 | listener.onMixedMultipleArgs(0, 1, "a", "b", 2); 137 | } 138 | 139 | RingBuffer ringBuffer = disruptor.getRingBuffer(); 140 | while (ringBuffer.getMinimumGatingSequence() != ringBuffer.getCursor()) 141 | { 142 | // Spin 143 | } 144 | 145 | disruptor.shutdown(); 146 | Executors.newSingleThreadExecutor().shutdown(); 147 | 148 | assertThat(implementation.getLastStringValue(), is("single string 2")); 149 | assertThat(implementation.getLastFloatValue(), is((float) 2)); 150 | assertThat(implementation.getLastIntValue(), is(2)); 151 | assertThat(implementation.getVoidInvocationCount(), is(3)); 152 | assertThat(implementation.getMixedArgsInvocationCount(), is(3)); 153 | assertThat(implementation.getLastDoubleArray(), is(equalTo(new Double[] {(double) 2}))); 154 | } 155 | 156 | @SuppressWarnings("StatementWithEmptyBody") 157 | @Test 158 | public void shouldProxyMultipleImplementations() 159 | { 160 | final Disruptor disruptor = createDisruptor(Executors.newCachedThreadPool(), 1024); 161 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 162 | final RingBufferProxyGenerator ringBufferProxyGenerator = generatorFactory.newProxy(generatorType); 163 | 164 | final ListenerImpl[] implementations = new ListenerImpl[] 165 | { 166 | new ListenerImpl(), new ListenerImpl() 167 | }; 168 | 169 | final Listener listener = ringBufferProxyGenerator.createRingBufferProxy(Listener.class, disruptor, OverflowStrategy.DROP, implementations); 170 | disruptor.start(); 171 | 172 | for(int i = 0; i < ITERATIONS; i++) 173 | { 174 | listener.onString("single string " + i); 175 | listener.onFloatAndInt((float) i, i); 176 | listener.onVoid(); 177 | listener.onObjectArray(new Double[]{(double) i}); 178 | listener.onMixedMultipleArgs(0, 1, "a", "b", 2); 179 | } 180 | 181 | RingBuffer ringBuffer = disruptor.getRingBuffer(); 182 | while (ringBuffer.getMinimumGatingSequence() != ringBuffer.getCursor()) 183 | { 184 | // Spin 185 | } 186 | 187 | disruptor.shutdown(); 188 | Executors.newCachedThreadPool().shutdown(); 189 | 190 | for (ListenerImpl implementation : implementations) 191 | { 192 | assertThat(implementation.getLastStringValue(), is("single string 2")); 193 | assertThat(implementation.getLastFloatValue(), is((float) 2)); 194 | assertThat(implementation.getLastIntValue(), is(2)); 195 | assertThat(implementation.getVoidInvocationCount(), is(3)); 196 | assertThat(implementation.getMixedArgsInvocationCount(), is(3)); 197 | assertThat(implementation.getLastDoubleArray(), is(equalTo(new Double[] {(double) 2}))); 198 | } 199 | } 200 | 201 | @Test 202 | public void shouldNotifyOnPreAndPostPublish() throws Exception 203 | { 204 | final Disruptor disruptor = createDisruptor(Executors.newSingleThreadExecutor(), 1024); 205 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 206 | final RingBufferProxyGenerator ringBufferProxyGenerator = generatorFactory.newProxy(generatorType, 207 | new ConfigurableValidator(NO_ANNOTATION, NOT_REQUIRED), dropListener, messagePublicationListener); 208 | 209 | final ListenerImpl implementation = new ListenerImpl(); 210 | final Listener listener = ringBufferProxyGenerator.createRingBufferProxy(Listener.class, disruptor, OverflowStrategy.DROP, implementation); 211 | disruptor.start(); 212 | 213 | for(int i = 0; i < 3; i++) 214 | { 215 | listener.onVoid(); 216 | } 217 | 218 | RingBuffer ringBuffer = disruptor.getRingBuffer(); 219 | while (ringBuffer.getMinimumGatingSequence() != ringBuffer.getCursor()) 220 | { 221 | // Spin 222 | } 223 | 224 | disruptor.shutdown(); 225 | Executors.newSingleThreadExecutor().shutdown(); 226 | 227 | assertThat(messagePublicationListener.getPreCount(), is(3)); 228 | assertThat(messagePublicationListener.getPostCount(), is(3)); 229 | } 230 | 231 | @Test 232 | public void shouldDropMessagesIfRingBufferIsFull() throws Exception 233 | { 234 | final Disruptor disruptor = createDisruptor(Executors.newSingleThreadExecutor(), 4); 235 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 236 | final RingBufferProxyGenerator ringBufferProxyGenerator = generatorFactory.newProxy(generatorType, new ConfigurableValidator(false, true), dropListener); 237 | 238 | final CountDownLatch latch = new CountDownLatch(1); 239 | final BlockingOverflowTest implementation = new BlockingOverflowTest(latch); 240 | final OverflowTest listener = ringBufferProxyGenerator.createRingBufferProxy(OverflowTest.class, disruptor, OverflowStrategy.DROP, implementation); 241 | disruptor.start(); 242 | 243 | for(int i = 0; i < 8; i++) 244 | { 245 | listener.invoke(); 246 | } 247 | 248 | latch.countDown(); 249 | 250 | Thread.sleep(250L); 251 | 252 | disruptor.shutdown(); 253 | Executors.newSingleThreadExecutor().shutdown(); 254 | 255 | assertThat(implementation.getInvocationCount(), is(4)); 256 | assertThat(dropListener.getDropCount(), is(4)); 257 | } 258 | 259 | @Test 260 | public void shouldReportBatchSize() throws Exception 261 | { 262 | 263 | final Disruptor disruptor = createDisruptor(Executors.newSingleThreadExecutor(), 8); 264 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 265 | final RingBufferProxyGenerator ringBufferProxyGenerator = 266 | generatorFactory.newProxy(generatorType, new ConfigurableValidator(false, true), dropListener); 267 | 268 | final CountDownLatch latch1 = new CountDownLatch(1); 269 | final CountDownLatch latch2 = new CountDownLatch(1); 270 | final BatchSizeTrackingHandler batchSizeTracker = new BatchSizeTrackingHandler(latch1, latch2); 271 | final OverflowTest listener = ringBufferProxyGenerator.createRingBufferProxy(OverflowTest.class, disruptor, OverflowStrategy.BLOCK, batchSizeTracker); 272 | disruptor.start(); 273 | 274 | for(int i = 0; i < 8; i++) 275 | { 276 | listener.invoke(); 277 | latch1.await(); 278 | } 279 | 280 | latch2.countDown(); 281 | 282 | Thread.sleep(250L); 283 | 284 | disruptor.shutdown(); 285 | Executors.newSingleThreadExecutor().shutdown(); 286 | 287 | assertThat(batchSizeTracker.getInvocationCount(), is(8)); 288 | assertThat(batchSizeTracker.getMaxBatchSize(), is(7)); 289 | } 290 | 291 | @Test 292 | public void shouldNotNotifyOnPostPublishForDroppedMessages() throws Exception 293 | { 294 | final Disruptor disruptor = createDisruptor(Executors.newSingleThreadExecutor(), 4); 295 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 296 | final RingBufferProxyGenerator ringBufferProxyGenerator = generatorFactory.newProxy(generatorType, new ConfigurableValidator(false, true), dropListener, messagePublicationListener); 297 | 298 | final CountDownLatch latch = new CountDownLatch(1); 299 | final BlockingOverflowTest implementation = new BlockingOverflowTest(latch); 300 | final OverflowTest listener = ringBufferProxyGenerator.createRingBufferProxy(OverflowTest.class, disruptor, OverflowStrategy.DROP, implementation); 301 | disruptor.start(); 302 | 303 | for(int i = 0; i < 8; i++) 304 | { 305 | listener.invoke(); 306 | } 307 | 308 | latch.countDown(); 309 | 310 | Thread.sleep(250L); 311 | 312 | disruptor.shutdown(); 313 | Executors.newSingleThreadExecutor().shutdown(); 314 | 315 | assertThat(implementation.getInvocationCount(), is(4)); 316 | assertThat(dropListener.getDropCount(), is(4)); 317 | assertThat(messagePublicationListener.getPreCount(), is(8)); 318 | assertThat(messagePublicationListener.getPostCount(), is(4)); 319 | } 320 | 321 | @Test 322 | public void shouldNotifyBatchListenerImplementationOfEndOfBatch() throws Exception 323 | { 324 | final Disruptor disruptor = createDisruptor(Executors.newSingleThreadExecutor(), 4); 325 | final RingBufferProxyGeneratorFactory generatorFactory = new RingBufferProxyGeneratorFactory(); 326 | final RingBufferProxyGenerator ringBufferProxyGenerator = generatorFactory.newProxy(generatorType); 327 | 328 | final BatchAwareListenerImpl implementation = new BatchAwareListenerImpl(); 329 | final Listener listener = ringBufferProxyGenerator.createRingBufferProxy(Listener.class, disruptor, OverflowStrategy.DROP, implementation); 330 | disruptor.start(); 331 | 332 | listener.onString("foo1"); 333 | listener.onString("foo2"); 334 | listener.onString("foo3"); 335 | listener.onString("foo4"); 336 | 337 | 338 | long timeoutAt = System.currentTimeMillis() + 2000L; 339 | 340 | while(implementation.getBatchCount() == 0 && System.currentTimeMillis() < timeoutAt) 341 | { 342 | Thread.sleep(1); 343 | } 344 | 345 | final int firstBatchCount = implementation.getBatchCount(); 346 | assertThat(firstBatchCount, is(not(0))); 347 | 348 | listener.onVoid(); 349 | listener.onVoid(); 350 | listener.onVoid(); 351 | 352 | timeoutAt = System.currentTimeMillis() + 2000L; 353 | 354 | while(implementation.getBatchCount() == firstBatchCount && System.currentTimeMillis() < timeoutAt) 355 | { 356 | Thread.sleep(1); 357 | } 358 | 359 | disruptor.shutdown(); 360 | Executors.newSingleThreadExecutor().shutdown(); 361 | 362 | assertThat(implementation.getBatchCount() > firstBatchCount, is(true)); 363 | } 364 | 365 | @Test 366 | public void shouldAllowProxyToInheritMethodsFromOtherInterfaces() throws Exception 367 | { 368 | final Disruptor disruptor = createDisruptor(new ScheduledThreadPoolExecutor(1), 1024); 369 | disruptor.handleExceptionsWith(new ThrowExceptionHandler()); 370 | 371 | final CountDownLatch bothMethodsAreCalled = new CountDownLatch(2); 372 | final ProxyWhichExtendsAnotherInterface catDog = new RingBufferProxyGeneratorFactory() 373 | .newProxy(generatorType) 374 | .createRingBufferProxy(ProxyWhichExtendsAnotherInterface.class, 375 | disruptor, 376 | OverflowStrategy.DROP, new ProxyWhichExtendsAnotherInterface() 377 | { 378 | @Override 379 | public void meow(String meow, int age) 380 | { 381 | bothMethodsAreCalled.countDown(); 382 | } 383 | 384 | @Override 385 | public void interitedMethodBark(boolean bark) 386 | { 387 | bothMethodsAreCalled.countDown(); 388 | } 389 | }); 390 | disruptor.start(); 391 | 392 | catDog.meow("meow", 3); 393 | catDog.interitedMethodBark(true); 394 | 395 | assertTrue(bothMethodsAreCalled.await(2, TimeUnit.SECONDS)); 396 | } 397 | 398 | public interface AnotherInterface 399 | { 400 | void interitedMethodBark(boolean bark); 401 | } 402 | 403 | @DisruptorProxy 404 | public interface ProxyWhichExtendsAnotherInterface extends AnotherInterface 405 | { 406 | void meow(String meow, int age); 407 | } 408 | 409 | private static final class BlockingOverflowTest implements OverflowTest 410 | { 411 | private final CountDownLatch blocker; 412 | private final AtomicInteger invocationCount = new AtomicInteger(0); 413 | 414 | private BlockingOverflowTest(final CountDownLatch blocker) 415 | { 416 | this.blocker = blocker; 417 | } 418 | 419 | @Override 420 | public void invoke() 421 | { 422 | try 423 | { 424 | blocker.await(); 425 | } 426 | catch (InterruptedException e) 427 | { 428 | throw new RuntimeException(); 429 | } 430 | invocationCount.incrementAndGet(); 431 | } 432 | 433 | int getInvocationCount() 434 | { 435 | return invocationCount.get(); 436 | } 437 | } 438 | 439 | @DisruptorProxy 440 | public interface OverflowTest 441 | { 442 | void invoke(); 443 | } 444 | 445 | public interface MyDisruptorProxyWithoutTheDisruptorAnnotation 446 | { 447 | } 448 | 449 | private Disruptor createDisruptor(final ExecutorService executor, final int ringBufferSize) 450 | { 451 | final Disruptor disruptor = new Disruptor(new RingBufferProxyEventFactory(), ringBufferSize, executor); 452 | disruptor.handleExceptionsWith(new FatalExceptionHandler()); 453 | return disruptor; 454 | } 455 | 456 | private static class StubImplementationForInterface implements MyDisruptorProxyWithoutTheDisruptorAnnotation 457 | { 458 | } 459 | 460 | private static class ThrowExceptionHandler implements ExceptionHandler 461 | { 462 | @Override 463 | public void handleEventException(Throwable ex, long sequence, Object event) 464 | { 465 | throw new RuntimeException("fail " + ex.getMessage()); 466 | } 467 | 468 | @Override 469 | public void handleOnStartException(Throwable ex) 470 | { 471 | throw new RuntimeException("fail " + ex.getMessage()); 472 | } 473 | 474 | @Override 475 | public void handleOnShutdownException(Throwable ex) 476 | { 477 | throw new RuntimeException("fail " + ex.getMessage()); 478 | } 479 | } 480 | 481 | private static class BatchSizeTrackingHandler implements OverflowTest, BatchSizeListener 482 | { 483 | private final CountDownLatch latch1; 484 | private final CountDownLatch latch2; 485 | private int invocationCount; 486 | private int maxBatchSize; 487 | 488 | public BatchSizeTrackingHandler(final CountDownLatch latch1, final CountDownLatch latch2) 489 | { 490 | 491 | this.latch1 = latch1; 492 | this.latch2 = latch2; 493 | } 494 | 495 | @Override 496 | public void invoke() 497 | { 498 | invocationCount++; 499 | 500 | latch1.countDown(); 501 | try 502 | { 503 | latch2.await(); 504 | } 505 | catch (final InterruptedException e) 506 | { 507 | throw new RuntimeException(e); 508 | } 509 | } 510 | 511 | @Override 512 | public void onEndOfBatch(final int batchSize) 513 | { 514 | maxBatchSize = Math.max(maxBatchSize, batchSize); 515 | } 516 | 517 | public int getMaxBatchSize() 518 | { 519 | return maxBatchSize; 520 | } 521 | 522 | public int getInvocationCount() 523 | { 524 | return invocationCount; 525 | } 526 | } 527 | } 528 | -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/BatchAwareListenerImpl.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | public final class BatchAwareListenerImpl implements Listener, BatchListener 20 | { 21 | private volatile int batchCount = 0; 22 | 23 | @Override 24 | public void onString(final String value) 25 | { 26 | } 27 | 28 | @Override 29 | public void onFloatAndInt(final Float floatValue, final int intValue) 30 | { 31 | } 32 | 33 | @Override 34 | public void onVoid() 35 | { 36 | } 37 | 38 | @Override 39 | public void onObjectArray(final Double[] value) 40 | { 41 | } 42 | 43 | @Override 44 | public void onMixedMultipleArgs(final int int0, final int int1, final String s0, final String s1, final int i2) 45 | { 46 | } 47 | 48 | public int getBatchCount() 49 | { 50 | return batchCount; 51 | } 52 | 53 | @Override 54 | public void onEndOfBatch() 55 | { 56 | batchCount++; 57 | } 58 | } 59 | -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/CountingDropListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.lmax.tool.disruptor; 17 | 18 | public final class CountingDropListener implements DropListener 19 | { 20 | private int dropCount = 0; 21 | 22 | @Override 23 | public void onDrop() 24 | { 25 | dropCount++; 26 | } 27 | 28 | public int getDropCount() 29 | { 30 | return dropCount; 31 | } 32 | } 33 | -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/CountingMessagePublicationListener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.lmax.tool.disruptor; 17 | 18 | public final class CountingMessagePublicationListener implements MessagePublicationListener 19 | { 20 | 21 | private int preCount = 0; 22 | private int postCount = 0; 23 | 24 | @Override 25 | public void onPrePublish() 26 | { 27 | preCount++; 28 | } 29 | 30 | @Override 31 | public void onPostPublish() 32 | { 33 | postCount++; 34 | } 35 | 36 | 37 | public int getPreCount() 38 | { 39 | return preCount; 40 | } 41 | 42 | public int getPostCount() 43 | { 44 | return postCount; 45 | } 46 | } 47 | -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/Listener.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | @DisruptorProxy 20 | public interface Listener 21 | { 22 | void onString(final String value); 23 | void onFloatAndInt(final Float value, final int intValue); 24 | void onVoid(); 25 | void onObjectArray(final Double[] value); 26 | void onMixedMultipleArgs(final int int0, final int int1, final String s0, final String s1, final int i2); 27 | } 28 | -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/ListenerImpl.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor; 18 | 19 | public final class ListenerImpl implements Listener 20 | { 21 | private volatile String lastStringValue; 22 | private volatile int lastIntValue; 23 | private volatile Float lastFloatValue; 24 | private volatile int voidInvocationCount; 25 | private volatile Double[] lastDoubleArray; 26 | private int mixedArgsInvocationCount; 27 | 28 | @Override 29 | public void onString(final String value) 30 | { 31 | lastStringValue = value; 32 | } 33 | 34 | @Override 35 | public void onFloatAndInt(final Float floatValue, final int intValue) 36 | { 37 | lastFloatValue = floatValue; 38 | lastIntValue = intValue; 39 | } 40 | 41 | @Override 42 | public void onVoid() 43 | { 44 | voidInvocationCount++; 45 | } 46 | 47 | @Override 48 | public void onObjectArray(final Double[] value) 49 | { 50 | lastDoubleArray = value; 51 | } 52 | 53 | @Override 54 | public void onMixedMultipleArgs(final int int0, final int int1, final String s0, final String s1, final int i2) 55 | { 56 | mixedArgsInvocationCount++; 57 | } 58 | 59 | public String getLastStringValue() 60 | { 61 | return lastStringValue; 62 | } 63 | 64 | public int getLastIntValue() 65 | { 66 | return lastIntValue; 67 | } 68 | 69 | public Float getLastFloatValue() 70 | { 71 | return lastFloatValue; 72 | } 73 | 74 | public int getVoidInvocationCount() 75 | { 76 | return voidInvocationCount; 77 | } 78 | 79 | public Double[] getLastDoubleArray() 80 | { 81 | return lastDoubleArray; 82 | } 83 | 84 | public int getMixedArgsInvocationCount() 85 | { 86 | return mixedArgsInvocationCount; 87 | } 88 | } 89 | -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/RingBufferProxyGeneratorFactoryTest.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.lmax.tool.disruptor; 17 | 18 | import org.junit.Test; 19 | 20 | public class RingBufferProxyGeneratorFactoryTest 21 | { 22 | @Test 23 | public void shouldBeAbleToCreateRingBufferProxyGenerator() throws Exception 24 | { 25 | for (GeneratorType generatorType : GeneratorType.values()) 26 | { 27 | new RingBufferProxyGeneratorFactory().newProxy(generatorType); 28 | } 29 | // no exception is thrown 30 | } 31 | } -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/RingBufferProxyValidationTest.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | package com.lmax.tool.disruptor; 17 | 18 | import org.junit.Test; 19 | 20 | public class RingBufferProxyValidationTest 21 | { 22 | @Test(expected = IllegalArgumentException.class) 23 | public void shouldThrowExceptionWhenInterfaceIsNotAnnotatedWithDisruptorProxy() throws Exception 24 | { 25 | new ConfigurableValidator(true, false).ensureDisruptorProxyIsAnnotatedWithDisruptorProxyAnnotation(MyProxyWithoutAnnotation.class); 26 | } 27 | 28 | @Test 29 | public void shouldNotThrowExceptionWhenInterfaceIsAnnotatedWithDisruptorProxy() throws Exception 30 | { 31 | new ConfigurableValidator(true, false).ensureDisruptorProxyIsAnnotatedWithDisruptorProxyAnnotation(MyProxyWithAnnotation.class); 32 | } 33 | 34 | private interface MyProxyWithoutAnnotation 35 | { 36 | } 37 | 38 | @DisruptorProxy 39 | private interface MyProxyWithAnnotation 40 | { 41 | } 42 | 43 | } -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/bytecode/ArgumentHolderHelperTest.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.bytecode; 18 | 19 | import org.junit.Test; 20 | 21 | import java.util.Map; 22 | 23 | import static org.hamcrest.CoreMatchers.is; 24 | import static org.junit.Assert.assertThat; 25 | 26 | public final class ArgumentHolderHelperTest 27 | { 28 | private final ArgumentHolderHelper argumentHolderHelper = new ArgumentHolderHelper(); 29 | 30 | @Test 31 | public void shouldDetermineParameterTypeCounts() throws Exception 32 | { 33 | final Map, Integer> parameterTypeCounts = 34 | argumentHolderHelper.getParameterTypeCounts(TestInterface.class); 35 | 36 | assertThat(parameterTypeCounts.get(String.class), is(1)); 37 | assertThat(parameterTypeCounts.get(int.class), is(3)); 38 | assertThat(parameterTypeCounts.get(Double.class), is(1)); 39 | assertThat(parameterTypeCounts.get(double.class), is(1)); 40 | } 41 | 42 | private interface TestInterface 43 | { 44 | void one(final String s); 45 | void two(final String s, final int i); 46 | void three(final int i0, final int i1, final int i3); 47 | void four(final Double d0, final double d1); 48 | } 49 | } -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/bytecode/BytecodeGenerationRingBufferProxyGeneratorTest.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.bytecode; 18 | 19 | import com.lmax.tool.disruptor.AbstractRingBufferProxyGeneratorTest; 20 | import com.lmax.tool.disruptor.GeneratorType; 21 | 22 | public final class BytecodeGenerationRingBufferProxyGeneratorTest extends AbstractRingBufferProxyGeneratorTest 23 | { 24 | public BytecodeGenerationRingBufferProxyGeneratorTest() 25 | { 26 | super(GeneratorType.BYTECODE_GENERATION); 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/handlers/HandlersTest.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.handlers; 18 | 19 | import com.lmax.disruptor.EventHandler; 20 | import com.lmax.tool.disruptor.BatchAwareListenerImpl; 21 | import com.lmax.tool.disruptor.Invoker; 22 | import com.lmax.tool.disruptor.ListenerImpl; 23 | import com.lmax.tool.disruptor.ProxyMethodInvocation; 24 | import com.lmax.tool.disruptor.Resetable; 25 | import org.junit.Test; 26 | 27 | import static com.lmax.tool.disruptor.handlers.Handlers.createSingleImplementationHandlerChain; 28 | import static org.hamcrest.CoreMatchers.is; 29 | import static org.junit.Assert.assertThat; 30 | 31 | 32 | public final class HandlersTest 33 | { 34 | @Test 35 | public void shouldNotifyBatchListenerOnEndOfBatch() throws Exception 36 | { 37 | final BatchAwareListenerImpl batchAwareListener = new BatchAwareListenerImpl(); 38 | final EventHandler eventHandler = createSingleImplementationHandlerChain(batchAwareListener); 39 | final ProxyMethodInvocation proxyMethodInvocation = new ProxyMethodInvocation(); 40 | proxyMethodInvocation.setArgumentHolder(new StubResetable()); 41 | proxyMethodInvocation.setInvoker(new NoOpInvoker()); 42 | 43 | eventHandler.onEvent(proxyMethodInvocation, 17L, true); 44 | 45 | assertThat(batchAwareListener.getBatchCount(), is(1)); 46 | } 47 | 48 | @Test 49 | public void shouldNotNotifyNonBatchListenerOnEndOfBatch() throws Exception 50 | { 51 | final ListenerImpl nonBatchAwareListener = new ListenerImpl(); 52 | final EventHandler eventHandler = createSingleImplementationHandlerChain(nonBatchAwareListener); 53 | final ProxyMethodInvocation proxyMethodInvocation = new ProxyMethodInvocation(); 54 | proxyMethodInvocation.setArgumentHolder(new StubResetable()); 55 | proxyMethodInvocation.setInvoker(new NoOpInvoker()); 56 | 57 | eventHandler.onEvent(proxyMethodInvocation, 17L, true); 58 | } 59 | 60 | private static class NoOpInvoker implements Invoker 61 | { 62 | @Override 63 | public void invokeWithArgumentHolder(final Object implementation, final Object argumentHolder) 64 | { 65 | } 66 | } 67 | 68 | private static final class StubResetable implements Resetable 69 | { 70 | @Override 71 | public void reset() 72 | { 73 | 74 | } 75 | } 76 | } -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/reflect/ReflectiveRingBufferInvocationHandlerTest.java: -------------------------------------------------------------------------------- 1 | package com.lmax.tool.disruptor.reflect; 2 | 3 | import org.junit.Test; 4 | 5 | import java.lang.reflect.Proxy; 6 | 7 | import static org.hamcrest.core.StringStartsWith.startsWith; 8 | import static org.junit.Assert.assertThat; 9 | 10 | public class ReflectiveRingBufferInvocationHandlerTest 11 | { 12 | interface Foo 13 | { 14 | } 15 | 16 | @Test 17 | public void shouldReturnToStringOfInvokerWhenCallingToStringOnProxy() throws Exception 18 | { 19 | final ReflectiveRingBufferInvocationHandler invocationHandler = new ReflectiveRingBufferInvocationHandler(null, null, null, null, null); 20 | 21 | Foo proxy = (Foo) Proxy.newProxyInstance(Foo.class.getClassLoader(), new Class[]{Foo.class}, invocationHandler); 22 | 23 | assertThat(proxy.toString(), startsWith("com.lmax.tool.disruptor.reflect.ReflectiveRingBufferInvocationHandler@")); 24 | } 25 | } -------------------------------------------------------------------------------- /src/test/java/com/lmax/tool/disruptor/reflect/ReflectiveRingBufferProxyGeneratorTest.java: -------------------------------------------------------------------------------- 1 | /* 2 | * Copyright 2015-2016 LMAX Ltd. 3 | * 4 | * Licensed under the Apache License, Version 2.0 (the "License"); 5 | * you may not use this file except in compliance with the License. 6 | * You may obtain a copy of the License at 7 | * 8 | * http://www.apache.org/licenses/LICENSE-2.0 9 | * 10 | * Unless required by applicable law or agreed to in writing, software 11 | * distributed under the License is distributed on an "AS IS" BASIS, 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 | * See the License for the specific language governing permissions and 14 | * limitations under the License. 15 | */ 16 | 17 | package com.lmax.tool.disruptor.reflect; 18 | 19 | import com.lmax.tool.disruptor.AbstractRingBufferProxyGeneratorTest; 20 | import com.lmax.tool.disruptor.GeneratorType; 21 | 22 | public final class ReflectiveRingBufferProxyGeneratorTest extends AbstractRingBufferProxyGeneratorTest 23 | { 24 | public ReflectiveRingBufferProxyGeneratorTest() 25 | { 26 | super(GeneratorType.JDK_REFLECTION); 27 | } 28 | } 29 | --------------------------------------------------------------------------------