├── .editorconfig
├── .github
    ├── maven-cd-settings.xml
    ├── maven-ci-settings.xml
    └── workflows
    │   ├── ci-4.x.yml
    │   ├── ci-5.x-stable.yml
    │   ├── ci-5.x.yml
    │   ├── ci-matrix-5.x.yml
    │   ├── ci.yml
    │   └── deploy.yml
├── .gitignore
├── LICENSE.txt
├── README.adoc
├── pom.xml
└── src
    ├── main
        ├── asciidoc
        │   └── index.adoc
        └── java
        │   ├── examples
        │       └── ReactiveStreamsExamples.java
        │   ├── io
        │       └── vertx
        │       │   └── ext
        │       │       └── reactivestreams
        │       │           ├── ReactiveReadStream.java
        │       │           ├── ReactiveWriteStream.java
        │       │           ├── impl
        │       │               ├── ReactiveReadStreamImpl.java
        │       │               └── ReactiveWriteStreamImpl.java
        │       │           └── package-info.java
        │   └── module-info.java
    └── test
        └── java
            ├── io
                └── vertx
                │   └── ext
                │       └── reactivestreams
                │           ├── tck
                │               ├── FiniteReactiveWriteStream.java
                │               ├── PublisherVerificationTest.java
                │               ├── SubscriberBlackboxVerificationTest.java
                │               └── SubscriberWhiteboxVerificationTest.java
                │           └── test
                │               ├── ReactiveReadStreamTest.java
                │               ├── ReactiveStreamTestBase.java
                │               └── ReactiveWriteStreamTest.java
            └── module-info.java


/.editorconfig:
--------------------------------------------------------------------------------
 1 | root = true
 2 | 
 3 | [*]
 4 | charset = utf-8
 5 | indent_style = space
 6 | indent_size = 2
 7 | trim_trailing_whitespace = true
 8 | end_of_line = lf
 9 | insert_final_newline = true
10 | 


--------------------------------------------------------------------------------
/.github/maven-cd-settings.xml:
--------------------------------------------------------------------------------
 1 | <!--
 2 |   ~ Copyright (c) 2021 Red Hat, Inc.
 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 | <settings>
18 | 
19 |   <interactiveMode>false</interactiveMode>
20 | 
21 |   <servers>
22 |     <server>
23 |       <id>vertx-snapshots-repository</id>
24 |       <username>${env.VERTX_NEXUS_USERNAME}</username>
25 |       <password>${env.VERTX_NEXUS_PASSWORD}</password>
26 |     </server>
27 |   </servers>
28 | 
29 |   <profiles>
30 |     <profile>
31 |       <id>google-mirror</id>
32 |       <activation>
33 |         <activeByDefault>true</activeByDefault>
34 |       </activation>
35 |       <repositories>
36 |         <repository>
37 |           <id>google-maven-central</id>
38 |           <name>GCS Maven Central mirror EU</name>
39 |           <url>https://maven-central.storage-download.googleapis.com/maven2/</url>
40 |           <releases>
41 |             <enabled>true</enabled>
42 |           </releases>
43 |           <snapshots>
44 |             <enabled>false</enabled>
45 |           </snapshots>
46 |         </repository>
47 |       </repositories>
48 |       <pluginRepositories>
49 |         <pluginRepository>
50 |           <id>google-maven-central</id>
51 |           <name>GCS Maven Central mirror</name>
52 |           <url>https://maven-central.storage-download.googleapis.com/maven2/</url>
53 |           <releases>
54 |             <enabled>true</enabled>
55 |           </releases>
56 |           <snapshots>
57 |             <enabled>false</enabled>
58 |           </snapshots>
59 |         </pluginRepository>
60 |       </pluginRepositories>
61 |     </profile>
62 |   </profiles>
63 | </settings>
64 | 


--------------------------------------------------------------------------------
/.github/maven-ci-settings.xml:
--------------------------------------------------------------------------------
 1 | <!--
 2 |   ~ Copyright (c) 2021 Red Hat, Inc.
 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 | <settings>
18 | 
19 |   <interactiveMode>false</interactiveMode>
20 | 
21 |   <profiles>
22 |     <profile>
23 |       <id>google-mirror</id>
24 |       <activation>
25 |         <activeByDefault>true</activeByDefault>
26 |       </activation>
27 |       <repositories>
28 |         <repository>
29 |           <id>google-maven-central</id>
30 |           <name>GCS Maven Central mirror EU</name>
31 |           <url>https://maven-central.storage-download.googleapis.com/maven2/</url>
32 |           <releases>
33 |             <enabled>true</enabled>
34 |           </releases>
35 |           <snapshots>
36 |             <enabled>false</enabled>
37 |           </snapshots>
38 |         </repository>
39 |       </repositories>
40 |       <pluginRepositories>
41 |         <pluginRepository>
42 |           <id>google-maven-central</id>
43 |           <name>GCS Maven Central mirror</name>
44 |           <url>https://maven-central.storage-download.googleapis.com/maven2/</url>
45 |           <releases>
46 |             <enabled>true</enabled>
47 |           </releases>
48 |           <snapshots>
49 |             <enabled>false</enabled>
50 |           </snapshots>
51 |         </pluginRepository>
52 |       </pluginRepositories>
53 |     </profile>
54 |   </profiles>
55 | </settings>
56 | 


--------------------------------------------------------------------------------
/.github/workflows/ci-4.x.yml:
--------------------------------------------------------------------------------
 1 | name: vertx-reactive-streams (4.x)
 2 | on:
 3 |   schedule:
 4 |     - cron: '0 4 * * *'
 5 | jobs:
 6 |   CI:
 7 |     strategy:
 8 |       matrix:
 9 |         include:
10 |           - os: ubuntu-latest
11 |             jdk: 8
12 |           - os: ubuntu-latest
13 |             jdk: 17
14 |     uses: ./.github/workflows/ci.yml
15 |     with:
16 |       branch: 4.x
17 |       jdk: ${{ matrix.jdk }}
18 |       os: ${{ matrix.os }}
19 |     secrets: inherit
20 |   Deploy:
21 |     if: ${{ github.repository_owner == 'vert-x3' && (github.event_name == 'push' || github.event_name == 'schedule') }}
22 |     needs: CI
23 |     uses: ./.github/workflows/deploy.yml
24 |     with:
25 |       branch: 4.x
26 |       jdk: 8
27 |     secrets: inherit
28 | 


--------------------------------------------------------------------------------
/.github/workflows/ci-5.x-stable.yml:
--------------------------------------------------------------------------------
 1 | name: vertx-reactive-streams (5.x-stable)
 2 | on:
 3 |   push:
 4 |     branches:
 5 |       - '5.[0-9]+'
 6 |   pull_request:
 7 |     branches:
 8 |       - '5.[0-9]+'
 9 |   schedule:
10 |     - cron: '0 6 * * *'
11 | jobs:
12 |   CI-CD:
13 |     uses: ./.github/workflows/ci-matrix-5.x.yml
14 |     secrets: inherit
15 |     with:
16 |       branch: ${{ github.event_name == 'schedule' && vars.VERTX_5_STABLE_BRANCH || github.event.pull_request.head.sha || github.ref_name }}
17 | 


--------------------------------------------------------------------------------
/.github/workflows/ci-5.x.yml:
--------------------------------------------------------------------------------
 1 | name: vertx-reactive-streams (5.x)
 2 | on:
 3 |   push:
 4 |     branches:
 5 |       - master
 6 |   pull_request:
 7 |     branches:
 8 |       - master
 9 |   schedule:
10 |     - cron: '0 5 * * *'
11 | jobs:
12 |   CI-CD:
13 |     uses: ./.github/workflows/ci-matrix-5.x.yml
14 |     secrets: inherit
15 |     with:
16 |       branch: ${{ github.event.pull_request.head.sha || github.ref_name }}
17 | 


--------------------------------------------------------------------------------
/.github/workflows/ci-matrix-5.x.yml:
--------------------------------------------------------------------------------
 1 | name: CI matrix (5.x)
 2 | on:
 3 |   workflow_call:
 4 |     inputs:
 5 |       branch:
 6 |         required: true
 7 |         type: string
 8 | jobs:
 9 |   CI:
10 |     strategy:
11 |       matrix:
12 |         include:
13 |           - os: ubuntu-latest
14 |             jdk: 11
15 |           - os: ubuntu-latest
16 |             jdk: 21
17 |     uses: ./.github/workflows/ci.yml
18 |     with:
19 |       branch: ${{ inputs.branch }}
20 |       jdk: ${{ matrix.jdk }}
21 |       os: ${{ matrix.os }}
22 |     secrets: inherit
23 |   Deploy:
24 |     if: ${{ github.repository_owner == 'vert-x3' && (github.event_name == 'push' || github.event_name == 'schedule') }}
25 |     needs: CI
26 |     uses: ./.github/workflows/deploy.yml
27 |     with:
28 |       branch: ${{ inputs.branch }}
29 |       jdk: 11
30 |     secrets: inherit
31 | 


--------------------------------------------------------------------------------
/.github/workflows/ci.yml:
--------------------------------------------------------------------------------
 1 | name: CI
 2 | on:
 3 |   workflow_call:
 4 |     inputs:
 5 |       branch:
 6 |         required: true
 7 |         type: string
 8 |       jdk:
 9 |         default: 8
10 |         type: string
11 |       os:
12 |         default: ubuntu-latest
13 |         type: string
14 | jobs:
15 |   Test:
16 |     name: Run tests
17 |     runs-on: ${{ inputs.os }}
18 |     steps:
19 |       - name: Checkout
20 |         uses: actions/checkout@v2
21 |         with:
22 |           ref: ${{ inputs.branch }}
23 |       - name: Install JDK
24 |         uses: actions/setup-java@v2
25 |         with:
26 |           java-version: ${{ inputs.jdk }}
27 |           distribution: temurin
28 |       - name: Run tests
29 |         run: mvn -s .github/maven-ci-settings.xml -q clean verify -B
30 | 


--------------------------------------------------------------------------------
/.github/workflows/deploy.yml:
--------------------------------------------------------------------------------
 1 | name: Deploy
 2 | on:
 3 |   workflow_call:
 4 |     inputs:
 5 |       branch:
 6 |         required: true
 7 |         type: string
 8 |       jdk:
 9 |         default: 8
10 |         type: string
11 | jobs:
12 |   Deploy:
13 |     name: Deploy to OSSRH
14 |     runs-on: ubuntu-latest
15 |     env:
16 |       VERTX_NEXUS_USERNAME: ${{ secrets.VERTX_NEXUS_USERNAME }}
17 |       VERTX_NEXUS_PASSWORD: ${{ secrets.VERTX_NEXUS_PASSWORD }}
18 |     steps:
19 |       - name: Checkout
20 |         uses: actions/checkout@v2
21 |         with:
22 |           ref: ${{ inputs.branch }}
23 |       - name: Install JDK
24 |         uses: actions/setup-java@v2
25 |         with:
26 |           java-version: ${{ inputs.jdk }}
27 |           distribution: temurin
28 |       - name: Get project version
29 |         run: echo "PROJECT_VERSION=$(mvn org.apache.maven.plugins:maven-help-plugin:evaluate -Dexpression=project.version -q -DforceStdout | grep -v '\[')" >> $GITHUB_ENV
30 |       - name: Maven deploy
31 |         if: ${{ endsWith(env.PROJECT_VERSION, '-SNAPSHOT') }}
32 |         run: mvn deploy -s .github/maven-cd-settings.xml -DskipTests -B
33 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | .DS_Store
 2 | .gradle
 3 | .idea
 4 | .classpath
 5 | .project
 6 | .settings
 7 | .yardoc
 8 | .yardopts
 9 | build
10 | target
11 | out
12 | *.iml
13 | *.ipr
14 | *.iws
15 | test-output
16 | Scratch.java
17 | ScratchTest.java
18 | test-results
19 | test-tmp
20 | *.class
21 | ScratchPad.java
22 | src/main/resources/ext-js/*.js
23 | src/main/java/io/vertx/java/**/*.java
24 | src/main/groovy/io/vertx/groovy/**/*.groovy
25 | *.swp
26 | 


--------------------------------------------------------------------------------
/LICENSE.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. Definitions.
  8 | 
  9 |       "License" shall mean the terms and conditions for use, reproduction,
 10 |       and distribution as defined by Sections 1 through 9 of this document.
 11 | 
 12 |       "Licensor" shall mean the copyright owner or entity authorized by
 13 |       the copyright owner that is granting the License.
 14 | 
 15 |       "Legal Entity" shall mean the union of the acting entity and all
 16 |       other entities that control, are controlled by, or are under common
 17 |       control with that entity. For the purposes of this definition,
 18 |       "control" means (i) the power, direct or indirect, to cause the
 19 |       direction or management of such entity, whether by contract or
 20 |       otherwise, or (ii) ownership of fifty percent (50%) or more of the
 21 |       outstanding shares, or (iii) beneficial ownership of such entity.
 22 | 
 23 |       "You" (or "Your") shall mean an individual or Legal Entity
 24 |       exercising permissions granted by this License.
 25 | 
 26 |       "Source" form shall mean the preferred form for making modifications,
 27 |       including but not limited to software source code, documentation
 28 |       source, and configuration files.
 29 | 
 30 |       "Object" form shall mean any form resulting from mechanical
 31 |       transformation or translation of a Source form, including but
 32 |       not limited to compiled object code, generated documentation,
 33 |       and conversions to other media types.
 34 | 
 35 |       "Work" shall mean the work of authorship, whether in Source or
 36 |       Object form, made available under the License, as indicated by a
 37 |       copyright notice that is included in or attached to the work
 38 |       (an example is provided in the Appendix below).
 39 | 
 40 |       "Derivative Works" shall mean any work, whether in Source or Object
 41 |       form, that is based on (or derived from) the Work and for which the
 42 |       editorial revisions, annotations, elaborations, or other modifications
 43 |       represent, as a whole, an original work of authorship. For the purposes
 44 |       of this License, Derivative Works shall not include works that remain
 45 |       separable from, or merely link (or bind by name) to the interfaces of,
 46 |       the Work and Derivative Works thereof.
 47 | 
 48 |       "Contribution" shall mean any work of authorship, including
 49 |       the original version of the Work and any modifications or additions
 50 |       to that Work or Derivative Works thereof, that is intentionally
 51 |       submitted to Licensor for inclusion in the Work by the copyright owner
 52 |       or by an individual or Legal Entity authorized to submit on behalf of
 53 |       the copyright owner. For the purposes of this definition, "submitted"
 54 |       means any form of electronic, verbal, or written communication sent
 55 |       to the Licensor or its representatives, including but not limited to
 56 |       communication on electronic mailing lists, source code control systems,
 57 |       and issue tracking systems that are managed by, or on behalf of, the
 58 |       Licensor for the purpose of discussing and improving the Work, but
 59 |       excluding communication that is conspicuously marked or otherwise
 60 |       designated in writing by the copyright owner as "Not a Contribution."
 61 | 
 62 |       "Contributor" shall mean Licensor and any individual or Legal Entity
 63 |       on behalf of whom a Contribution has been received by Licensor and
 64 |       subsequently incorporated within the Work.
 65 | 
 66 |    2. Grant of Copyright License. Subject to the terms and conditions of
 67 |       this License, each Contributor hereby grants to You a perpetual,
 68 |       worldwide, non-exclusive, no-charge, royalty-free, irrevocable
 69 |       copyright license to reproduce, prepare Derivative Works of,
 70 |       publicly display, publicly perform, sublicense, and distribute the
 71 |       Work and such Derivative Works in Source or Object form.
 72 | 
 73 |    3. Grant of Patent License. Subject to the terms and conditions of
 74 |       this License, each Contributor hereby grants to You a perpetual,
 75 |       worldwide, non-exclusive, no-charge, royalty-free, irrevocable
 76 |       (except as stated in this section) patent license to make, have made,
 77 |       use, offer to sell, sell, import, and otherwise transfer the Work,
 78 |       where such license applies only to those patent claims licensable
 79 |       by such Contributor that are necessarily infringed by their
 80 |       Contribution(s) alone or by combination of their Contribution(s)
 81 |       with the Work to which such Contribution(s) was submitted. If You
 82 |       institute patent litigation against any entity (including a
 83 |       cross-claim or counterclaim in a lawsuit) alleging that the Work
 84 |       or a Contribution incorporated within the Work constitutes direct
 85 |       or contributory patent infringement, then any patent licenses
 86 |       granted to You under this License for that Work shall terminate
 87 |       as of the date such litigation is filed.
 88 | 
 89 |    4. Redistribution. You may reproduce and distribute copies of the
 90 |       Work or Derivative Works thereof in any medium, with or without
 91 |       modifications, and in Source or Object form, provided that You
 92 |       meet the following conditions:
 93 | 
 94 |       (a) You must give any other recipients of the Work or
 95 |           Derivative Works a copy of this License; and
 96 | 
 97 |       (b) You must cause any modified files to carry prominent notices
 98 |           stating that You changed the files; and
 99 | 
100 |       (c) You must retain, in the Source form of any Derivative Works
101 |           that You distribute, all copyright, patent, trademark, and
102 |           attribution notices from the Source form of the Work,
103 |           excluding those notices that do not pertain to any part of
104 |           the Derivative Works; and
105 | 
106 |       (d) If the Work includes a "NOTICE" text file as part of its
107 |           distribution, then any Derivative Works that You distribute must
108 |           include a readable copy of the attribution notices contained
109 |           within such NOTICE file, excluding those notices that do not
110 |           pertain to any part of the Derivative Works, in at least one
111 |           of the following places: within a NOTICE text file distributed
112 |           as part of the Derivative Works; within the Source form or
113 |           documentation, if provided along with the Derivative Works; or,
114 |           within a display generated by the Derivative Works, if and
115 |           wherever such third-party notices normally appear. The contents
116 |           of the NOTICE file are for informational purposes only and
117 |           do not modify the License. You may add Your own attribution
118 |           notices within Derivative Works that You distribute, alongside
119 |           or as an addendum to the NOTICE text from the Work, provided
120 |           that such additional attribution notices cannot be construed
121 |           as modifying the License.
122 | 
123 |       You may add Your own copyright statement to Your modifications and
124 |       may provide additional or different license terms and conditions
125 |       for use, reproduction, or distribution of Your modifications, or
126 |       for any such Derivative Works as a whole, provided Your use,
127 |       reproduction, and distribution of the Work otherwise complies with
128 |       the conditions stated in this License.
129 | 
130 |    5. Submission of Contributions. Unless You explicitly state otherwise,
131 |       any Contribution intentionally submitted for inclusion in the Work
132 |       by You to the Licensor shall be under the terms and conditions of
133 |       this License, without any additional terms or conditions.
134 |       Notwithstanding the above, nothing herein shall supersede or modify
135 |       the terms of any separate license agreement you may have executed
136 |       with Licensor regarding such Contributions.
137 | 
138 |    6. Trademarks. This License does not grant permission to use the trade
139 |       names, trademarks, service marks, or product names of the Licensor,
140 |       except as required for reasonable and customary use in describing the
141 |       origin of the Work and reproducing the content of the NOTICE file.
142 | 
143 |    7. Disclaimer of Warranty. Unless required by applicable law or
144 |       agreed to in writing, Licensor provides the Work (and each
145 |       Contributor provides its Contributions) on an "AS IS" BASIS,
146 |       WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
147 |       implied, including, without limitation, any warranties or conditions
148 |       of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
149 |       PARTICULAR PURPOSE. You are solely responsible for determining the
150 |       appropriateness of using or redistributing the Work and assume any
151 |       risks associated with Your exercise of permissions under this License.
152 | 
153 |    8. Limitation of Liability. In no event and under no legal theory,
154 |       whether in tort (including negligence), contract, or otherwise,
155 |       unless required by applicable law (such as deliberate and grossly
156 |       negligent acts) or agreed to in writing, shall any Contributor be
157 |       liable to You for damages, including any direct, indirect, special,
158 |       incidental, or consequential damages of any character arising as a
159 |       result of this License or out of the use or inability to use the
160 |       Work (including but not limited to damages for loss of goodwill,
161 |       work stoppage, computer failure or malfunction, or any and all
162 |       other commercial damages or losses), even if such Contributor
163 |       has been advised of the possibility of such damages.
164 | 
165 |    9. Accepting Warranty or Additional Liability. While redistributing
166 |       the Work or Derivative Works thereof, You may choose to offer,
167 |       and charge a fee for, acceptance of support, warranty, indemnity,
168 |       or other liability obligations and/or rights consistent with this
169 |       License. However, in accepting such obligations, You may act only
170 |       on Your own behalf and on Your sole responsibility, not on behalf
171 |       of any other Contributor, and only if You agree to indemnify,
172 |       defend, and hold each Contributor harmless for any liability
173 |       incurred by, or claims asserted against, such Contributor by reason
174 |       of your accepting any such warranty or additional liability.
175 | 
176 |    END OF TERMS AND CONDITIONS
177 | 
178 |    APPENDIX: How to apply the Apache License to your work.
179 | 
180 |       To apply the Apache License to your work, attach the following
181 |       boilerplate notice, with the fields enclosed by brackets "{}"
182 |       replaced with your own identifying information. (Don't include
183 |       the brackets!)  The text should be enclosed in the appropriate
184 |       comment syntax for the file format. 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.
202 | 


--------------------------------------------------------------------------------
/README.adoc:
--------------------------------------------------------------------------------
 1 | = Reactive Streams for Vert.x
 2 | 
 3 | image:https://github.com/vert-x3/vertx-reactive-streams/actions/workflows/ci-5.x.yml/badge.svg["Build Status (5.x)",link="https://github.com/vert-x3/vertx-reactive-streams/actions/workflows/ci-5.x.yml"]
 4 | image:https://github.com/vert-x3/vertx-reactive-streams/actions/workflows/ci-4.x.yml/badge.svg["Build Status (4.x)",link="https://github.com/vert-x3/vertx-reactive-streams/actions/workflows/ci-4.x.yml"]
 5 | 
 6 | "link:http://www.reactive-streams.org/[Reactive Streams] is an initiative to provide a standard for asynchronous stream
 7 | processing with non-blocking back pressure on the JVM."
 8 | 
 9 | Please see the main documentation on the web-site for a full description:
10 | 
11 | * https://vertx.io/docs/vertx-reactive-streams/java/[Web-site documentation]
12 | 


--------------------------------------------------------------------------------
/pom.xml:
--------------------------------------------------------------------------------
  1 | <?xml version="1.0"?>
  2 | <!--
  3 |   ~ Copyright (c) 2011-2014 The original author or authors
  4 |   ~
  5 |   ~  All rights reserved. This program and the accompanying materials
  6 |   ~  are made available under the terms of the Eclipse Public License v1.0
  7 |   ~  and Apache License v2.0 which accompanies this distribution.
  8 |   ~
  9 |   ~      The Eclipse Public License is available at
 10 |   ~      http://www.eclipse.org/legal/epl-v10.html
 11 |   ~
 12 |   ~      The Apache License v2.0 is available at
 13 |   ~      http://www.opensource.org/licenses/apache2.0.php
 14 |   ~
 15 |   ~  You may elect to redistribute this code under either of these licenses.
 16 |   --><project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
 17 | 
 18 |   <modelVersion>4.0.0</modelVersion>
 19 | 
 20 |   <parent>
 21 |     <groupId>io.vertx</groupId>
 22 |     <artifactId>vertx5-parent</artifactId>
 23 |     <version>12</version>
 24 |   </parent>
 25 | 
 26 |   <artifactId>vertx-reactive-streams</artifactId>
 27 |   <version>5.1.0-SNAPSHOT</version>
 28 | 
 29 |   <name>Vert.x - Reactive Streams</name>
 30 | 
 31 |   <scm>
 32 |     <connection>scm:git:git@github.com:vert-x3/vertx-reactive-streams.git</connection>
 33 |     <developerConnection>scm:git:git@github.com:vert-x3/vertx-reactive-streams.git</developerConnection>
 34 |     <url>git@github.com:vert-x3/vertx-reactive-streams.git</url>
 35 |   </scm>
 36 | 
 37 |   <properties>
 38 |     <reactive.streams.version>1.0.3</reactive.streams.version>
 39 |   </properties>
 40 | 
 41 |   <dependencyManagement>
 42 |     <dependencies>
 43 |       <dependency>
 44 |         <groupId>io.vertx</groupId>
 45 |         <artifactId>vertx-dependencies</artifactId>
 46 |         <version>${project.version}</version>
 47 |         <type>pom</type>
 48 |         <scope>import</scope>
 49 |       </dependency>
 50 |     </dependencies>
 51 |   </dependencyManagement>
 52 | 
 53 |   <dependencies>
 54 |     <dependency>
 55 |       <groupId>io.vertx</groupId>
 56 |       <artifactId>vertx-core</artifactId>
 57 |     </dependency>
 58 |     <dependency>
 59 |       <groupId>io.vertx</groupId>
 60 |       <artifactId>vertx-codegen-api</artifactId>
 61 |       <optional>true</optional>
 62 |     </dependency>
 63 |     <dependency>
 64 |       <groupId>io.vertx</groupId>
 65 |       <artifactId>vertx-docgen-api</artifactId>
 66 |       <optional>true</optional>
 67 |     </dependency>
 68 |     <dependency>
 69 |       <groupId>org.reactivestreams</groupId>
 70 |       <artifactId>reactive-streams</artifactId>
 71 |       <version>${reactive.streams.version}</version>
 72 |     </dependency>
 73 |     <dependency>
 74 |       <groupId>org.reactivestreams</groupId>
 75 |       <artifactId>reactive-streams-tck</artifactId>
 76 |       <version>${reactive.streams.version}</version>
 77 |       <scope>test</scope>
 78 |     </dependency>
 79 |     <dependency>
 80 |       <groupId>io.vertx</groupId>
 81 |       <artifactId>vertx-core</artifactId>
 82 |       <type>test-jar</type>
 83 |       <scope>test</scope>
 84 |     </dependency>
 85 |     <dependency>
 86 |       <groupId>junit</groupId>
 87 |       <artifactId>junit</artifactId>
 88 |       <scope>test</scope>
 89 |       <version>4.13.1</version>
 90 |     </dependency>
 91 |   </dependencies>
 92 | 
 93 |   <build>
 94 |     <pluginManagement>
 95 |       <plugins>
 96 |         <plugin>
 97 |           <artifactId>maven-compiler-plugin</artifactId>
 98 |           <executions>
 99 |             <execution>
100 |               <id>default-compile</id>
101 |               <configuration>
102 |                 <annotationProcessorPaths>
103 |                   <annotationProcessorPath>
104 |                     <groupId>io.vertx</groupId>
105 |                     <artifactId>vertx-codegen</artifactId>
106 |                     <classifier>processor</classifier>
107 |                   </annotationProcessorPath>
108 |                   <annotationProcessorPath>
109 |                     <groupId>io.vertx</groupId>
110 |                     <artifactId>vertx-docgen-processor</artifactId>
111 |                     <classifier>processor</classifier>
112 |                   </annotationProcessorPath>
113 |                 </annotationProcessorPaths>
114 |               </configuration>
115 |             </execution>
116 |           </executions>
117 |         </plugin>
118 |       </plugins>
119 |     </pluginManagement>
120 |     <plugins>
121 |       <plugin>
122 |         <groupId>org.apache.maven.plugins</groupId>
123 |         <artifactId>maven-surefire-plugin</artifactId>
124 |         <executions>
125 |           <execution>
126 |             <id>default-test</id>
127 |             <goals>
128 |               <goal>test</goal>
129 |             </goals>
130 |             <configuration>
131 |               <excludes>
132 |                 <exclude>**/tck/*</exclude>
133 |               </excludes>
134 |               <testNGArtifactName>none:none</testNGArtifactName>
135 |             </configuration>
136 |           </execution>
137 |           <execution>
138 |             <id>tck</id>
139 |             <goals>
140 |               <goal>test</goal>
141 |             </goals>
142 |             <configuration>
143 |               <excludes>
144 |                 <exclude>**/test/*</exclude>
145 |                 <exclude>**/tck/SubscriberWhitebox*</exclude>
146 |               </excludes>
147 |               <junitArtifactName>none:none</junitArtifactName>
148 |             </configuration>
149 |           </execution>
150 |         </executions>
151 |       </plugin>
152 |       <plugin>
153 |         <artifactId>maven-assembly-plugin</artifactId>
154 |         <executions>
155 |           <execution>
156 |             <id>package-docs</id>
157 |             <goals>
158 |               <goal>single</goal>
159 |             </goals>
160 |           </execution>
161 |         </executions>
162 |       </plugin>
163 |     </plugins>
164 |   </build>
165 | </project>


--------------------------------------------------------------------------------
/src/main/asciidoc/index.adoc:
--------------------------------------------------------------------------------
 1 | = Vert.x Reactive Streams Integration
 2 | 
 3 | link:http://www.reactive-streams.org/[Reactive Streams] is an initiative to provide a standard for asynchronous stream
 4 | processing with non-blocking back pressure on the JVM.
 5 | 
 6 | This library provides an implementation of reactive streams for Vert.x.
 7 | 
 8 | Vert.x provides its own mechanisms for handling streams of data and pumping them with back pressure from one to another
 9 | using the `io.vertx.core.streams.ReadStream`, `io.vertx.core.streams.WriteStream` and `io.vertx.core.streams.Pump`.
10 | Please see the Vert.x core manual for more information on Vert.x streams.
11 | 
12 | This library provides implementations of read stream and write stream which also act as reactive streams publishers
13 | and subscribers. This allows us to treat any reactive streams publisher or subscriber and deal with it like any other
14 | Vert.x read or write stream.
15 | 
16 | == Using Vert.x Reactive Streams
17 | 
18 | To use Vert.x Reactive Streams, add the following dependency to the _dependencies_ section of your build descriptor:
19 | 
20 | * Maven (in your `pom.xml`):
21 | 
22 | [source,xml,subs="+attributes"]
23 | ----
24 | <dependency>
25 |   <groupId>io.vertx</groupId>
26 |   <artifactId>vertx-reactive-streams</artifactId>
27 |   <version>${maven.version}</version>
28 | </dependency>
29 | ----
30 | 
31 | * Gradle (in your `build.gradle` file):
32 | 
33 | [source,groovy,subs="+attributes"]
34 | ----
35 | compile io.vertx:vertx-reactive-streams:${maven.version}
36 | ----
37 | 
38 | == Reactive Read Stream
39 | 
40 | We provide an implementation of the Vert.x `ReadStream` interface with {@link io.vertx.ext.reactivestreams.ReactiveReadStream}
41 | which also implements a reactive streams `Subscriber`.
42 | 
43 | You can pass an instance of this to any reactive streams `Publisher` (e.g. a Publisher from Akka) and then you will be
44 | able to read from that just like any other Vert.x `ReadStream` (e.g. use a `Pump` to pump it to a `WriteStream`.
45 | 
46 | Here's an example of taking a publisher from some other reactive streams implementation (e.g. Akka) and pumping that
47 | stream to the body of a server side HTTP response. This will handle back pressure automatically.
48 | 
49 | [source,java]
50 | ----
51 | {@link examples.ReactiveStreamsExamples#example1}
52 | ----
53 | 
54 | == Reactive Write Stream
55 | 
56 | We also provide an implementation of the Vert.x `WriteStream` interface with {@link io.vertx.ext.reactivestreams.ReactiveWriteStream}
57 | which also implements a reactive streams `Publisher`. You can take any reactive streams `Subscriber`
58 | (e.g. a Subscriber from Akka) and then you will be able* to write to it like any other Vert.x `WriteStream`.
59 | (e.g. use a `Pump` to pump it from a `ReadStream`).
60 | 
61 | You use `pause`, `resume`, and `writeQueueFull`, as you would with any Vert.x read stream to handle your back pressure.
62 | This is automatically translated internally into the reactive streams method of propagating back pressure
63 | (requesting more items).
64 | 
65 | Here's an example of taking a subscriber from some other reactive streams implementation and pumping the body of
66 | a server side HTTP request to that subscriber. This will handle back pressure automatically.
67 | 
68 | [source,java]
69 | ----
70 | {@link examples.ReactiveStreamsExamples#example2}
71 | ----
72 | 


--------------------------------------------------------------------------------
/src/main/java/examples/ReactiveStreamsExamples.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright 2014 Red Hat, Inc.
 3 |  *
 4 |  *  All rights reserved. This program and the accompanying materials
 5 |  *  are made available under the terms of the Eclipse Public License v1.0
 6 |  *  and Apache License v2.0 which accompanies this distribution.
 7 |  *
 8 |  *  The Eclipse Public License is available at
 9 |  *  http://www.eclipse.org/legal/epl-v10.html
10 |  *
11 |  *  The Apache License v2.0 is available at
12 |  *  http://www.opensource.org/licenses/apache2.0.php
13 |  *
14 |  *  You may elect to redistribute this code under either of these licenses.
15 |  */
16 | 
17 | package examples;
18 | 
19 | import io.vertx.core.Vertx;
20 | import io.vertx.core.buffer.Buffer;
21 | import io.vertx.core.http.HttpServerRequest;
22 | import io.vertx.core.http.HttpServerResponse;
23 | import io.vertx.docgen.Source;
24 | import io.vertx.ext.reactivestreams.ReactiveReadStream;
25 | import io.vertx.ext.reactivestreams.ReactiveWriteStream;
26 | import org.reactivestreams.Publisher;
27 | import org.reactivestreams.Subscriber;
28 | 
29 | /**
30 |  * @author <a href="http://tfox.org">Tim Fox</a>
31 |  */
32 | @Source(translate = false)
33 | public class ReactiveStreamsExamples {
34 | 
35 |   public void example1(HttpServerResponse response, Publisher<Buffer> otherPublisher) {
36 | 
37 |     ReactiveReadStream<Buffer> rrs = ReactiveReadStream.readStream();
38 | 
39 |     // Subscribe the read stream to the publisher
40 |     otherPublisher.subscribe(rrs);
41 | 
42 |     // Pipe from the read stream to the http response
43 |     rrs.pipeTo(response);
44 | 
45 |   }
46 | 
47 |   public void example2(Vertx vertx, HttpServerRequest request, Subscriber<Buffer> otherSubscriber) {
48 | 
49 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
50 | 
51 |     // Subscribe the other subscriber to the write stream
52 |     rws.subscribe(otherSubscriber);
53 | 
54 |     // Pipe the http request to the write stream
55 |     request.pipeTo(rws);
56 |   }
57 | }
58 | 


--------------------------------------------------------------------------------
/src/main/java/io/vertx/ext/reactivestreams/ReactiveReadStream.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright 2014 Red Hat, Inc.
 3 |  *
 4 |  *  All rights reserved. This program and the accompanying materials
 5 |  *  are made available under the terms of the Eclipse Public License v1.0
 6 |  *  and Apache License v2.0 which accompanies this distribution.
 7 |  *
 8 |  *  The Eclipse Public License is available at
 9 |  *  http://www.eclipse.org/legal/epl-v10.html
10 |  *
11 |  *  The Apache License v2.0 is available at
12 |  *  http://www.opensource.org/licenses/apache2.0.php
13 |  *
14 |  *  You may elect to redistribute this code under either of these licenses.
15 |  */
16 | 
17 | package io.vertx.ext.reactivestreams;
18 | 
19 | import io.vertx.core.Handler;
20 | import io.vertx.core.streams.ReadStream;
21 | import io.vertx.ext.reactivestreams.impl.ReactiveReadStreamImpl;
22 | import org.reactivestreams.Subscriber;
23 | 
24 | /**
25 |  * A Vert.x read stream that also implements reactive streams subscriber interface.
26 |  *
27 |  * @author <a href="http://tfox.org">Tim Fox</a>
28 |  */
29 | public interface ReactiveReadStream<T> extends ReadStream<T>, Subscriber<T> {
30 | 
31 |   /**
32 |    * Default batch size
33 |    */
34 |   static final long DEFAULT_BATCH_SIZE = 4L;
35 | 
36 |   /**
37 |    * Create a reactive read stream
38 |    *
39 |    * @return the stream
40 |    */
41 |   static <T> ReactiveReadStream<T> readStream() {
42 |     return readStream(DEFAULT_BATCH_SIZE);
43 |   }
44 | 
45 |   /**
46 |    * Create a reactive read stream specifying batch size
47 |    *
48 |    * @param batchSize  the batch size
49 |    * @return the stream
50 |    */
51 |   static <T> ReactiveReadStream<T> readStream(long batchSize) {
52 |     return new ReactiveReadStreamImpl<>(batchSize);
53 |   }
54 | 
55 |   @Override
56 |   ReactiveReadStream<T> exceptionHandler(Handler<Throwable> handler);
57 | 
58 |   @Override
59 |   ReactiveReadStream<T> handler(Handler<T> handler);
60 | 
61 |   @Override
62 |   ReactiveReadStream<T> pause();
63 | 
64 |   @Override
65 |   ReactiveReadStream<T> resume();
66 | 
67 |   @Override
68 |   ReactiveReadStream<T> endHandler(Handler<Void> endHandler);
69 | }
70 | 


--------------------------------------------------------------------------------
/src/main/java/io/vertx/ext/reactivestreams/ReactiveWriteStream.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright 2014 Red Hat, Inc.
 3 |  *
 4 |  *  All rights reserved. This program and the accompanying materials
 5 |  *  are made available under the terms of the Eclipse Public License v1.0
 6 |  *  and Apache License v2.0 which accompanies this distribution.
 7 |  *
 8 |  *  The Eclipse Public License is available at
 9 |  *  http://www.eclipse.org/legal/epl-v10.html
10 |  *
11 |  *  The Apache License v2.0 is available at
12 |  *  http://www.opensource.org/licenses/apache2.0.php
13 |  *
14 |  *  You may elect to redistribute this code under either of these licenses.
15 |  */
16 | 
17 | package io.vertx.ext.reactivestreams;
18 | 
19 | import io.vertx.core.AsyncResult;
20 | import io.vertx.core.Future;
21 | import io.vertx.core.Handler;
22 | import io.vertx.core.Vertx;
23 | import io.vertx.core.streams.WriteStream;
24 | import io.vertx.ext.reactivestreams.impl.ReactiveWriteStreamImpl;
25 | import org.reactivestreams.Publisher;
26 | 
27 | /**
28 |  * A Vert.x write stream that also implements reactive streams publisher interface.
29 |  *
30 |  *
31 |  * @author <a href="http://tfox.org">Tim Fox</a>
32 |  */
33 | public interface ReactiveWriteStream<T> extends WriteStream<T>, Publisher<T> {
34 | 
35 |   /**
36 |    * Default write queue max size
37 |    */
38 |   static final int DEFAULT_WRITE_QUEUE_MAX_SIZE = 32;
39 | 
40 |   /**
41 |    * Create a reactive write stream
42 |    *
43 |    * @param vertx  the Vert.x instance
44 |    * @return the stream
45 |    */
46 |   static <T> ReactiveWriteStream<T> writeStream(Vertx vertx) {
47 |     return new ReactiveWriteStreamImpl<>(vertx);
48 |   }
49 | 
50 |   @Override
51 |   ReactiveWriteStream<T> exceptionHandler(Handler<Throwable> handler);
52 | 
53 |   @Override
54 |   Future<Void> write(T data);
55 | 
56 |   @Override
57 |   ReactiveWriteStream<T> setWriteQueueMaxSize(int maxSize);
58 | 
59 |   @Override
60 |   ReactiveWriteStream<T> drainHandler(Handler<Void> handler);
61 | 
62 |   /**
63 |    * Close the stream
64 |    *
65 |    * @return a reference to this for a fluent API
66 |    */
67 |   ReactiveWriteStream<T> close();
68 | 
69 | }
70 | 


--------------------------------------------------------------------------------
/src/main/java/io/vertx/ext/reactivestreams/impl/ReactiveReadStreamImpl.java:
--------------------------------------------------------------------------------
  1 | /*
  2 |  * Copyright 2014 Red Hat, Inc.
  3 |  *
  4 |  *  All rights reserved. This program and the accompanying materials
  5 |  *  are made available under the terms of the Eclipse Public License v1.0
  6 |  *  and Apache License v2.0 which accompanies this distribution.
  7 |  *
  8 |  *  The Eclipse Public License is available at
  9 |  *  http://www.eclipse.org/legal/epl-v10.html
 10 |  *
 11 |  *  The Apache License v2.0 is available at
 12 |  *  http://www.opensource.org/licenses/apache2.0.php
 13 |  *
 14 |  *  You may elect to redistribute this code under either of these licenses.
 15 |  */
 16 | 
 17 | package io.vertx.ext.reactivestreams.impl;
 18 | 
 19 | import io.vertx.core.Handler;
 20 | import io.vertx.ext.reactivestreams.ReactiveReadStream;
 21 | import org.reactivestreams.Subscription;
 22 | 
 23 | import java.util.ArrayDeque;
 24 | import java.util.Queue;
 25 | 
 26 | /**
 27 |  * @author <a href="mailto:nscavell@redhat.com">Nick Scavelli</a>
 28 |  * @author <a href="http://tfox.org">Tim Fox</a>
 29 |  */
 30 | public class ReactiveReadStreamImpl<T> implements ReactiveReadStream<T> {
 31 | 
 32 |   private final long batchSize;
 33 |   private Handler<T> dataHandler;
 34 |   private Handler<Void> endHandler;
 35 |   private Handler<Throwable> exceptionHandler;
 36 | 
 37 |   private Subscription subscription;
 38 |   private final Queue<T> pending = new ArrayDeque<>();
 39 |   private long demand = Long.MAX_VALUE;
 40 |   private long tokens;
 41 | 
 42 |   public ReactiveReadStreamImpl(long batchSize) {
 43 |     this.batchSize = batchSize;
 44 |   }
 45 | 
 46 |   public synchronized ReactiveReadStream<T> handler(Handler<T> handler) {
 47 |     this.dataHandler = handler;
 48 |     if (dataHandler != null && demand > 0L) {
 49 |       checkRequestTokens();
 50 |     }
 51 |     return this;
 52 |   }
 53 | 
 54 |   @Override
 55 |   public synchronized ReactiveReadStream<T> pause() {
 56 |     this.demand = 0L;
 57 |     return this;
 58 |   }
 59 | 
 60 |   @Override
 61 |   public ReactiveReadStream<T> fetch(long amount) {
 62 |     if (amount > 0L) {
 63 |       demand += amount;
 64 |       if (demand < 0L) {
 65 |         demand = Long.MAX_VALUE;
 66 |       }
 67 |       T data;
 68 |       while (demand > 0L && (data = pending.poll()) != null) {
 69 |         if (demand != Long.MAX_VALUE) {
 70 |           demand--;
 71 |         }
 72 |         handleData(data);
 73 |       }
 74 |       checkRequestTokens();
 75 |     }
 76 |     return this;
 77 |   }
 78 | 
 79 |   @Override
 80 |   public synchronized ReactiveReadStream<T> resume() {
 81 |     return fetch(Long.MAX_VALUE);
 82 |   }
 83 | 
 84 |   @Override
 85 |   public synchronized ReactiveReadStream<T> endHandler(Handler<Void> endHandler) {
 86 |     this.endHandler = endHandler;
 87 |     return this;
 88 |   }
 89 | 
 90 |   @Override
 91 |   public synchronized ReactiveReadStream<T> exceptionHandler(Handler<Throwable> handler) {
 92 |     this.exceptionHandler = handler;
 93 |     return this;
 94 |   }
 95 | 
 96 |   @Override
 97 |   public synchronized void onSubscribe(Subscription subscription) {
 98 |     if (subscription == null) {
 99 |       throw new NullPointerException("subscription");
100 |     }
101 |     if (this.subscription != null) {
102 |       subscription.cancel();
103 |     } else {
104 |       this.subscription = subscription;
105 |     }
106 |   }
107 | 
108 |   @Override
109 |   public synchronized void onNext(T data) {
110 |     if (data == null) {
111 |       throw new NullPointerException("data");
112 |     }
113 |     checkUnsolicitedTokens();
114 |     if (demand > 0L) {
115 |       if (demand != Long.MAX_VALUE) {
116 |         demand--;
117 |       }
118 |       if (pending.size() > 0) {
119 |         pending.add(data);
120 |         data = pending.poll();
121 |       }
122 |       handleData(data);
123 |     } else {
124 |       pending.add(data);
125 |     }
126 |   }
127 | 
128 |   @Override
129 |   public synchronized void onError(Throwable throwable) {
130 |     if (throwable == null) {
131 |       throw new NullPointerException("throwable");
132 |     }
133 |     if (exceptionHandler != null) {
134 |       exceptionHandler.handle(throwable);
135 |     }
136 |   }
137 | 
138 |   @Override
139 |   public synchronized void onComplete() {
140 |     if (endHandler != null) {
141 |       endHandler.handle(null);
142 |     }
143 |   }
144 | 
145 |   protected void checkUnsolicitedTokens() {
146 |     if (tokens == 0) {
147 |       throw new IllegalStateException("Data received but wasn't requested");
148 |     }
149 |   }
150 | 
151 |   private synchronized void handleData(T data) {
152 |     if (dataHandler != null) {
153 |       dataHandler.handle(data);
154 |       tokens--;
155 |       checkRequestTokens();
156 |     }
157 |   }
158 | 
159 |   private void checkRequestTokens() {
160 |     if (demand > 0L && subscription != null && tokens == 0) {
161 |       tokens = batchSize;
162 |       subscription.request(batchSize);
163 |     }
164 |   }
165 | 
166 | }
167 | 


--------------------------------------------------------------------------------
/src/main/java/io/vertx/ext/reactivestreams/impl/ReactiveWriteStreamImpl.java:
--------------------------------------------------------------------------------
  1 | /*
  2 |  * Copyright 2014 Red Hat, Inc.
  3 |  *
  4 |  *  All rights reserved. This program and the accompanying materials
  5 |  *  are made available under the terms of the Eclipse Public License v1.0
  6 |  *  and Apache License v2.0 which accompanies this distribution.
  7 |  *
  8 |  *  The Eclipse Public License is available at
  9 |  *  http://www.eclipse.org/legal/epl-v10.html
 10 |  *
 11 |  *  The Apache License v2.0 is available at
 12 |  *  http://www.opensource.org/licenses/apache2.0.php
 13 |  *
 14 |  *  You may elect to redistribute this code under either of these licenses.
 15 |  */
 16 | 
 17 | package io.vertx.ext.reactivestreams.impl;
 18 | 
 19 | import io.vertx.core.*;
 20 | import io.vertx.core.internal.ContextInternal;
 21 | import io.vertx.core.internal.net.NetSocketInternal;
 22 | import io.vertx.ext.reactivestreams.ReactiveWriteStream;
 23 | import org.reactivestreams.Subscriber;
 24 | import org.reactivestreams.Subscription;
 25 | 
 26 | import java.util.ArrayDeque;
 27 | import java.util.Objects;
 28 | import java.util.Queue;
 29 | import java.util.Set;
 30 | import java.util.concurrent.ConcurrentHashMap;
 31 | import java.util.concurrent.atomic.AtomicLong;
 32 | 
 33 | /**
 34 |  * @author <a href="http://tfox.org">Tim Fox</a>
 35 |  */
 36 | public class ReactiveWriteStreamImpl<T> implements ReactiveWriteStream<T> {
 37 | 
 38 |   private final Set<SubscriptionImpl> subscriptions = ConcurrentHashMap.newKeySet();
 39 |   private final Queue<Item<T>> pending = new ArrayDeque<>();
 40 |   private Handler<Void> drainHandler;
 41 |   private int writeQueueMaxSize = DEFAULT_WRITE_QUEUE_MAX_SIZE;
 42 |   protected final ContextInternal ctx;
 43 |   private boolean closed;
 44 | 
 45 |   public ReactiveWriteStreamImpl(Vertx vertx) {
 46 |     ctx = (ContextInternal) vertx.getOrCreateContext();
 47 |   }
 48 | 
 49 |   private void checkClosed() {
 50 |     if (closed) {
 51 |       throw new IllegalStateException("Closed");
 52 |     }
 53 |   }
 54 | 
 55 |   @Override
 56 |   public synchronized void subscribe(Subscriber<? super T> subscriber) {
 57 |     checkClosed();
 58 |     Objects.requireNonNull(subscriber);
 59 | 
 60 |     SubscriptionImpl sub = new SubscriptionImpl(subscriber);
 61 |     if (subscriptions.add(sub)) {
 62 |       ctx.runOnContext(v -> {
 63 |         try {
 64 |           subscriber.onSubscribe(sub);
 65 |         } catch (Throwable t) {
 66 |           signalError(sub.subscriber, t);
 67 |         }
 68 |       });
 69 |     } else {
 70 |       throw new IllegalStateException("1.10 Cannot subscribe multiple times with the same subscriber.");
 71 |     }
 72 |   }
 73 | 
 74 |   @Override
 75 |   public synchronized Future<Void> write(T data) {
 76 |     checkClosed();
 77 |     Promise<Void> promise = ctx.promise();
 78 |     pending.add(new Item<>(data, promise));
 79 |     checkSend();
 80 |     return promise.future();
 81 |   }
 82 | 
 83 |   @Override
 84 |   public synchronized ReactiveWriteStream<T> setWriteQueueMaxSize(int maxSize) {
 85 |     checkClosed();
 86 |     if (writeQueueMaxSize < 1) {
 87 |       throw new IllegalArgumentException("writeQueueMaxSize must be >=1");
 88 |     }
 89 |     this.writeQueueMaxSize = maxSize;
 90 |     return this;
 91 |   }
 92 | 
 93 |   @Override
 94 |   public synchronized boolean writeQueueFull() {
 95 |     checkClosed();
 96 |     return pending.size() >= writeQueueMaxSize;
 97 |   }
 98 | 
 99 |   @Override
100 |   public synchronized ReactiveWriteStream<T> drainHandler(Handler<Void> handler) {
101 |     checkClosed();
102 |     this.drainHandler = handler;
103 |     return this;
104 |   }
105 | 
106 |   @Override
107 |   public synchronized ReactiveWriteStream<T> exceptionHandler(Handler<Throwable> handler) {
108 |     return this;
109 |   }
110 | 
111 |   @Override
112 |   public Future<Void> end() {
113 |     close();
114 |     return ctx.succeededFuture();
115 |   }
116 | 
117 |   @Override
118 |   public ReactiveWriteStream<T> close() {
119 |     synchronized (this) {
120 |       if (closed) {
121 |         return this;
122 |       }
123 |       closed = true;
124 |       complete();
125 |       subscriptions.clear();
126 |       Future<Void> closedFut = Future.failedFuture(NetSocketInternal.CLOSED_EXCEPTION);
127 |       for (Item<T> item: pending) {
128 |         Completable<Void> handler = item.handler;
129 |         if (handler != null) {
130 |           ctx.runOnContext(v -> {
131 |             if (closedFut.succeeded()) {
132 |               handler.succeed(closedFut.result());
133 |             } else {
134 |               handler.fail(closedFut.cause());
135 |             }
136 |           });
137 |         }
138 |       }
139 |       pending.clear();
140 |     }
141 |     return this;
142 |   }
143 | 
144 |   private synchronized void checkSend() {
145 |     if (!subscriptions.isEmpty()) {
146 |       long availableTokens = getAvailable();
147 |       long toSend = Math.min(availableTokens, pending.size());
148 |       takeTokens(toSend);
149 |       for (long i = 0; i < toSend; i++) {
150 |         sendToSubscribers(pending.poll());
151 |       }
152 |       if (drainHandler != null && pending.size() < writeQueueMaxSize) {
153 |         callDrainHandler();
154 |       }
155 |     }
156 |   }
157 | 
158 |   private void callDrainHandler() {
159 |     Handler<Void> dh = drainHandler;
160 |     ctx.runOnContext(v -> dh.handle(null));
161 |   }
162 | 
163 |   private long getAvailable() {
164 |     long min = Long.MAX_VALUE;
165 |     for (SubscriptionImpl subscription: subscriptions) {
166 |       min = Math.min(subscription.tokens(), min);
167 |     }
168 |     return min;
169 |   }
170 | 
171 |   private void takeTokens(long toSend) {
172 |     for (SubscriptionImpl subscription: subscriptions) {
173 |       subscription.takeTokens(toSend);
174 |     }
175 |   }
176 | 
177 |   private void complete() {
178 |     for (SubscriptionImpl sub: subscriptions) {
179 |       ctx.runOnContext(v -> sub.subscriber.onComplete());
180 |     }
181 |   }
182 | 
183 |   private void sendToSubscribers(Item<T> item) {
184 |     for (SubscriptionImpl sub: subscriptions) {
185 |       onNext(ctx, sub.subscriber, item.value);
186 |     }
187 |     if (item.handler != null) {
188 |       item.handler.succeed();
189 |     }
190 |   }
191 | 
192 |   protected void onNext(Context context, Subscriber<? super T> subscriber, T data) {
193 |     context.runOnContext(v -> {
194 |       try {
195 |         subscriber.onNext(data);
196 |       } catch (Throwable t) {
197 |         signalError(subscriber, t);
198 |       }
199 |     });
200 |   }
201 | 
202 |   public class SubscriptionImpl implements Subscription {
203 | 
204 |     private final Subscriber<? super T> subscriber;
205 |     // We start at Long.MIN_VALUE so we know when we've requested more then Long.MAX_VALUE. See 3.17 of spec
206 |     private final AtomicLong tokens = new AtomicLong(Long.MIN_VALUE);
207 | 
208 |     private SubscriptionImpl(Subscriber<? super T> subscriber) {
209 |       this.subscriber = subscriber;
210 |     }
211 | 
212 |     public long tokens() {
213 |       return -(Long.MIN_VALUE - tokens.get());
214 |     }
215 | 
216 |     public void takeTokens(long amount) {
217 |       tokens.addAndGet(-amount);
218 |     }
219 | 
220 |     @Override
221 |     public void request(long n) {
222 |       if (n > 0) {
223 |         // More then Long.MAX_VALUE pending
224 |         if (tokens.addAndGet(n) > 0) {
225 |           signalError(subscriber, new IllegalStateException("3.17 Subscriber has more then Long.MAX_VALUE (2^63-1) currently pending."));
226 |         } else {
227 |           checkSend();
228 |         }
229 |       } else {
230 |         signalError(subscriber, new IllegalArgumentException("3.9 Subscriber cannot request less then 1 for the number of elements."));
231 |       }
232 |     }
233 | 
234 |     @Override
235 |     public void cancel() {
236 |       subscriptions.remove(this);
237 |     }
238 | 
239 |     @Override
240 |     public boolean equals(Object o) {
241 |       if (this == o) return true;
242 |       if (o == null || getClass() != o.getClass()) return false;
243 | 
244 |       @SuppressWarnings("unchecked")
245 |       SubscriptionImpl that = (SubscriptionImpl) o;
246 | 
247 |       return subscriber == that.subscriber;
248 |     }
249 | 
250 |     @Override
251 |     public int hashCode() {
252 |       return subscriber.hashCode();
253 |     }
254 |   }
255 | 
256 |   private void signalError(Subscriber<? super T> subscriber, Throwable error) {
257 |     subscriptions.removeIf(sub -> sub.subscriber == subscriber);
258 |     subscriber.onError(error);
259 |   }
260 | 
261 |   static class Item<T> {
262 |     final T value;
263 |     final Completable<Void> handler;
264 |     Item(T value, Completable<Void> handler) {
265 |       this.value = value;
266 |       this.handler = handler;
267 |     }
268 |   }
269 | 
270 | }
271 | 


--------------------------------------------------------------------------------
/src/main/java/io/vertx/ext/reactivestreams/package-info.java:
--------------------------------------------------------------------------------
 1 | /**
 2 |  * = Vert.x Reactive Streams Integration
 3 |  *
 4 |  * link:http://www.reactive-streams.org/[Reactive Streams] is an initiative to provide a standard for asynchronous stream
 5 |  * processing with non-blocking back pressure on the JVM.
 6 |  *
 7 |  * This library provides an implementation of reactive streams for Vert.x.
 8 |  *
 9 |  * Vert.x provides its own mechanisms for handling streams of data and pumping them with back pressure from one to another
10 |  * using the `io.vertx.core.streams.ReadStream`, `io.vertx.core.streams.WriteStream` and `io.vertx.core.streams.Pump`.
11 |  * Please see the Vert.x core manual for more information on Vert.x streams.
12 |  *
13 |  * This library provides implementations of read stream and write stream which also act as reactive streams publishers
14 |  * and subscribers. This allows us to treat any reactive streams publisher or subscriber and deal with it like any other
15 |  * Vert.x read or write stream.
16 |  *
17 |  * == Using Vert.x Reactive Streams
18 |  *
19 |  * To use Vert.x Reactive Streams, add the following dependency to the _dependencies_ section of your build descriptor:
20 |  *
21 |  * * Maven (in your `pom.xml`):
22 |  *
23 |  * [source,xml,subs="+attributes"]
24 |  * ----
25 |  * <dependency>
26 |  *   <groupId>${maven.groupId}</groupId>
27 |  *   <artifactId>${maven.artifactId}</artifactId>
28 |  *   <version>${maven.version}</version>
29 |  * </dependency>
30 |  * ----
31 |  *
32 |  * * Gradle (in your `build.gradle` file):
33 |  *
34 |  * [source,groovy,subs="+attributes"]
35 |  * ----
36 |  * compile ${maven.groupId}:${maven.artifactId}:${maven.version}
37 |  * ----
38 |  *
39 |  * == Reactive Read Stream
40 |  *
41 |  * We provide an implementation of the Vert.x `ReadStream` interface with {@link io.vertx.ext.reactivestreams.ReactiveReadStream}
42 |  * which also implements a reactive streams `Subscriber`.
43 |  *
44 |  * You can pass an instance of this to any reactive streams `Publisher` (e.g. a Publisher from Akka) and then you will be
45 |  * able to read from that just like any other Vert.x `ReadStream` (e.g. use a `Pump` to pump it to a `WriteStream`.
46 |  *
47 |  * Here's an example of taking a publisher from some other reactive streams implementation (e.g. Akka) and pumping that
48 |  * stream to the body of a server side HTTP response. This will handle back pressure automatically.
49 |  *
50 |  * [source,java]
51 |  * ----
52 |  * {@link examples.ReactiveStreamsExamples#example1}
53 |  * ----
54 |  *
55 |  * == Reactive Write Stream
56 |  *
57 |  * We also provide an implementation of the Vert.x `WriteStream` interface with {@link io.vertx.ext.reactivestreams.ReactiveWriteStream}
58 |  * which also implements a reactive streams `Publisher`. You can take any reactive streams `Subscriber`
59 |  * (e.g. a Subscriber from Akka) and then you will be able* to write to it like any other Vert.x `WriteStream`.
60 |  * (e.g. use a `Pump` to pump it from a `ReadStream`).
61 |  *
62 |  * You use `pause`, `resume`, and `writeQueueFull`, as you would with any Vert.x read stream to handle your back pressure.
63 |  * This is automatically translated internally into the reactive streams method of propagating back pressure
64 |  * (requesting more items).
65 |  *
66 |  * Here's an example of taking a subscriber from some other reactive streams implementation and pumping the body of
67 |  * a server side HTTP request to that subscriber. This will handle back pressure automatically.
68 |  *
69 |  * [source,java]
70 |  * ----
71 |  * {@link examples.ReactiveStreamsExamples#example2}
72 |  * ----
73 |  *
74 |  */
75 | @Document(fileName = "index.adoc")
76 | package io.vertx.ext.reactivestreams;
77 | 
78 | import io.vertx.docgen.Document;
79 | 


--------------------------------------------------------------------------------
/src/main/java/module-info.java:
--------------------------------------------------------------------------------
 1 | open module io.vertx.reactivestreams {
 2 | 
 3 |   requires static io.vertx.docgen;
 4 | 
 5 |   requires io.vertx.core;
 6 |   requires org.reactivestreams;
 7 | 
 8 |   exports io.vertx.ext.reactivestreams;
 9 |   exports io.vertx.ext.reactivestreams.impl to io.vertx.reactivestreams.tests;
10 | 
11 | }
12 | 


--------------------------------------------------------------------------------
/src/test/java/io/vertx/ext/reactivestreams/tck/FiniteReactiveWriteStream.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright (c) 2011-2014 The original author or authors
 3 |  * ------------------------------------------------------
 4 |  * All rights reserved. This program and the accompanying materials
 5 |  * are made available under the terms of the Eclipse Public License v1.0
 6 |  * and Apache License v2.0 which accompanies this distribution.
 7 |  *
 8 |  *     The Eclipse Public License is available at
 9 |  *     http://www.eclipse.org/legal/epl-v10.html
10 |  *
11 |  *     The Apache License v2.0 is available at
12 |  *     http://www.opensource.org/licenses/apache2.0.php
13 |  *
14 |  * You may elect to redistribute this code under either of these licenses.
15 |  */
16 | 
17 | package io.vertx.ext.reactivestreams.tck;
18 | 
19 | import io.vertx.core.Context;
20 | import io.vertx.core.Vertx;
21 | import io.vertx.ext.reactivestreams.impl.ReactiveWriteStreamImpl;
22 | import org.reactivestreams.Subscriber;
23 | 
24 | import java.util.Map;
25 | import java.util.WeakHashMap;
26 | import java.util.concurrent.atomic.AtomicLong;
27 | 
28 | /**
29 |  * @author <a href="mailto:nscavell@redhat.com">Nick Scavelli</a>
30 |  */
31 | public class FiniteReactiveWriteStream<T> extends ReactiveWriteStreamImpl<T> {
32 | 
33 |   private Map<Subscriber<? super T>, AtomicLong> subs = new WeakHashMap<>();
34 |   private final long elements;
35 | 
36 |   public FiniteReactiveWriteStream(Vertx vertx, long elements) {
37 |     super(vertx);
38 |     this.elements = elements;
39 |   }
40 | 
41 |   @Override
42 |   public void subscribe(Subscriber<? super T> subscriber) {
43 |     subs.put(subscriber, new AtomicLong(elements));
44 |     super.subscribe(subscriber);
45 |   }
46 | 
47 |   @Override
48 |   protected void onNext(Context context, Subscriber<? super T> subscriber, T data) {
49 |     AtomicLong count = subs.get(subscriber);
50 |     if (count == null) return; // Means we already completed it
51 | 
52 |     long remaining = count.decrementAndGet();
53 |     super.onNext(context, subscriber, data);
54 |     if (remaining == 0) {
55 |       close();
56 |     }
57 |   }
58 | }
59 | 


--------------------------------------------------------------------------------
/src/test/java/io/vertx/ext/reactivestreams/tck/PublisherVerificationTest.java:
--------------------------------------------------------------------------------
 1 | package io.vertx.ext.reactivestreams.tck;
 2 | 
 3 | import io.vertx.core.Context;
 4 | import io.vertx.core.Vertx;
 5 | import io.vertx.core.buffer.Buffer;
 6 | import io.vertx.ext.reactivestreams.ReactiveWriteStream;
 7 | import io.vertx.ext.reactivestreams.impl.ReactiveWriteStreamImpl;
 8 | import io.vertx.test.core.TestUtils;
 9 | import org.reactivestreams.Publisher;
10 | import org.reactivestreams.Subscriber;
11 | import org.reactivestreams.tck.PublisherVerification;
12 | import org.reactivestreams.tck.TestEnvironment;
13 | 
14 | 
15 | /**
16 |  * @author <a href="mailto:nscavell@redhat.com">Nick Scavelli</a>
17 |  */
18 | public class PublisherVerificationTest extends PublisherVerification<Buffer> {
19 | 
20 |   private static final long DEFAULT_TIMEOUT = 300L;
21 |   private static final long DEFAULT_GC_TIMEOUT = 1000L;
22 | 
23 |   private Vertx vertx;
24 | 
25 |   public PublisherVerificationTest() {
26 |     super(new TestEnvironment(DEFAULT_TIMEOUT), DEFAULT_GC_TIMEOUT);
27 |     this.vertx = Vertx.vertx();
28 |   }
29 | 
30 |   @Override
31 |   public Publisher<Buffer> createPublisher(long elements) {
32 |     ReactiveWriteStream<Buffer> rws;
33 |     rws = new FiniteReactiveWriteStream<>(vertx, elements);
34 |     if (elements < Integer.MAX_VALUE) {
35 |       for (long i = 0; i < elements; i++) {
36 |         rws.write(TestUtils.randomBuffer(10));
37 |       }
38 |     }
39 |     return rws;
40 |   }
41 | 
42 |   @Override
43 |   public Publisher<Buffer> createFailedPublisher() {
44 | 
45 |     return new ReactiveWriteStreamImpl<Buffer>(vertx) {
46 |       @Override
47 |       public void subscribe(Subscriber<? super Buffer> subscriber) {
48 |         super.subscribe(subscriber);
49 |         ctx.runOnContext(v -> {
50 |           // Now signal an error
51 |           subscriber.onError(new RuntimeException("Can't subscribe subscriber: " + subscriber + ", because of reasons."));
52 |         });
53 |       }
54 |     };
55 |   }
56 | }
57 | 


--------------------------------------------------------------------------------
/src/test/java/io/vertx/ext/reactivestreams/tck/SubscriberBlackboxVerificationTest.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright 2014 Red Hat, Inc.
 3 |  *
 4 |  *  All rights reserved. This program and the accompanying materials
 5 |  *  are made available under the terms of the Eclipse Public License v1.0
 6 |  *  and Apache License v2.0 which accompanies this distribution.
 7 |  *
 8 |  *  The Eclipse Public License is available at
 9 |  *  http://www.eclipse.org/legal/epl-v10.html
10 |  *
11 |  *  The Apache License v2.0 is available at
12 |  *  http://www.opensource.org/licenses/apache2.0.php
13 |  *
14 |  *  You may elect to redistribute this code under either of these licenses.
15 |  */
16 | 
17 | package io.vertx.ext.reactivestreams.tck;
18 | 
19 | import io.vertx.core.buffer.Buffer;
20 | import io.vertx.ext.reactivestreams.ReactiveReadStream;
21 | import org.reactivestreams.Subscriber;
22 | import org.reactivestreams.tck.SubscriberBlackboxVerification;
23 | import org.reactivestreams.tck.TestEnvironment;
24 | 
25 | /*
26 |  *
27 |  * @author <a href="http://tfox.org">Tim Fox</a>
28 |  */
29 | public class SubscriberBlackboxVerificationTest extends SubscriberBlackboxVerification<Buffer> {
30 | 
31 |   public SubscriberBlackboxVerificationTest() {
32 |     super(new TestEnvironment());
33 |   }
34 | 
35 |   @Override
36 |   public Buffer createElement(int i) {
37 |     return Buffer.buffer("element" + i);
38 |   }
39 | 
40 |   @Override
41 |   public Subscriber<Buffer> createSubscriber() {
42 |     return ReactiveReadStream.readStream();
43 |   }
44 | 
45 |   @Override
46 |   public void triggerRequest(Subscriber<? super Buffer> subscriber) {
47 |     System.out.println("Calling triggerRequest on: " + subscriber);
48 |     ReactiveReadStream<Buffer> rrs = (ReactiveReadStream<Buffer>)subscriber;
49 |     rrs.handler(b -> {});
50 |   }
51 | 
52 | 
53 | }
54 | 


--------------------------------------------------------------------------------
/src/test/java/io/vertx/ext/reactivestreams/tck/SubscriberWhiteboxVerificationTest.java:
--------------------------------------------------------------------------------
  1 | /*
  2 |  * Copyright 2014 Red Hat, Inc.
  3 |  *
  4 |  *  All rights reserved. This program and the accompanying materials
  5 |  *  are made available under the terms of the Eclipse Public License v1.0
  6 |  *  and Apache License v2.0 which accompanies this distribution.
  7 |  *
  8 |  *  The Eclipse Public License is available at
  9 |  *  http://www.eclipse.org/legal/epl-v10.html
 10 |  *
 11 |  *  The Apache License v2.0 is available at
 12 |  *  http://www.opensource.org/licenses/apache2.0.php
 13 |  *
 14 |  *  You may elect to redistribute this code under either of these licenses.
 15 |  */
 16 | 
 17 | package io.vertx.ext.reactivestreams.tck;
 18 | 
 19 | import io.vertx.core.buffer.Buffer;
 20 | import io.vertx.ext.reactivestreams.ReactiveReadStream;
 21 | import io.vertx.ext.reactivestreams.impl.ReactiveReadStreamImpl;
 22 | import org.junit.Ignore;
 23 | import org.reactivestreams.Subscriber;
 24 | import org.reactivestreams.Subscription;
 25 | import org.reactivestreams.tck.SubscriberWhiteboxVerification;
 26 | import org.reactivestreams.tck.TestEnvironment;
 27 | 
 28 | /*
 29 |  *
 30 |  * @author <a href="http://tfox.org">Tim Fox</a>
 31 |  */
 32 | @Ignore
 33 | public class SubscriberWhiteboxVerificationTest extends SubscriberWhiteboxVerification<Buffer> {
 34 | 
 35 | 
 36 |   public SubscriberWhiteboxVerificationTest() {
 37 |     super(new TestEnvironment());
 38 |   }
 39 | 
 40 |   @Override
 41 |   public Subscriber<Buffer> createSubscriber(WhiteboxSubscriberProbe<Buffer> probe) {
 42 | 
 43 |     // return YOUR subscriber under-test, with additional WhiteboxSubscriberProbe instrumentation
 44 |     return new ReactiveReadStreamImpl<Buffer>(ReactiveReadStream.DEFAULT_BATCH_SIZE) {
 45 | 
 46 |       @Override
 47 |       public void onSubscribe(final Subscription s) {
 48 | 
 49 |         super.onSubscribe(s);
 50 | 
 51 |         // in addition to normal Subscriber work that you're testing,
 52 |         // register a SubscriberPuppet, to give the TCK control over demand generation and cancelling
 53 |         probe.registerOnSubscribe(new SubscriberPuppet() {
 54 | 
 55 |           @Override
 56 |           public void triggerRequest(long n) {
 57 |             s.request(n);
 58 |           }
 59 | 
 60 |           @Override
 61 |           public void signalCancel() {
 62 |             s.cancel();
 63 |           }
 64 |         });
 65 | 
 66 | 
 67 |       }
 68 | 
 69 |       @Override
 70 |       public void onNext(Buffer value) {
 71 | 
 72 |         // in addition to normal Subscriber work that you're testing, register onNext with the probe
 73 |         probe.registerOnNext(value);
 74 |         super.onNext(value);
 75 |       }
 76 | 
 77 |       @Override
 78 |       public void onError(Throwable cause) {
 79 | 
 80 |         // in addition to normal Subscriber work that you're testing, register onError with the probe
 81 |         probe.registerOnError(cause);
 82 |         super.onError(cause);
 83 |       }
 84 | 
 85 |       @Override
 86 |       public void onComplete() {
 87 | 
 88 |         // in addition to normal Subscriber work that you're testing, register onComplete with the probe
 89 |         probe.registerOnComplete();
 90 |         super.onComplete();
 91 |       }
 92 | 
 93 |       // Need to override this to drop the tokens check or the test won't pass
 94 |       @Override
 95 |       protected void checkUnsolicitedTokens() {
 96 |         // NO OP
 97 |       }
 98 |     };
 99 |   }
100 | 
101 |   @Override
102 |   public Buffer createElement(int element) {
103 |     return Buffer.buffer("element" + element);
104 |   }
105 | 
106 | }
107 | 


--------------------------------------------------------------------------------
/src/test/java/io/vertx/ext/reactivestreams/test/ReactiveReadStreamTest.java:
--------------------------------------------------------------------------------
  1 | /*
  2 |  * Copyright 2014 Red Hat, Inc.
  3 |  *
  4 |  *  All rights reserved. This program and the accompanying materials
  5 |  *  are made available under the terms of the Eclipse Public License v1.0
  6 |  *  and Apache License v2.0 which accompanies this distribution.
  7 |  *
  8 |  *  The Eclipse Public License is available at
  9 |  *  http://www.eclipse.org/legal/epl-v10.html
 10 |  *
 11 |  *  The Apache License v2.0 is available at
 12 |  *  http://www.opensource.org/licenses/apache2.0.php
 13 |  *
 14 |  *  You may elect to redistribute this code under either of these licenses.
 15 |  */
 16 | 
 17 | package io.vertx.ext.reactivestreams.test;
 18 | 
 19 | import io.vertx.core.VertxException;
 20 | import io.vertx.core.buffer.Buffer;
 21 | import io.vertx.ext.reactivestreams.ReactiveReadStream;
 22 | import org.junit.Test;
 23 | import org.reactivestreams.Publisher;
 24 | import org.reactivestreams.Subscriber;
 25 | import org.reactivestreams.Subscription;
 26 | 
 27 | import java.util.ArrayList;
 28 | import java.util.List;
 29 | 
 30 | /**
 31 |  * @author <a href="http://tfox.org">Tim Fox</a>
 32 |  */
 33 | public class ReactiveReadStreamTest extends ReactiveStreamTestBase {
 34 | 
 35 | 
 36 |   @Test
 37 |   public void testSubscribe() throws Exception {
 38 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
 39 |     MyPublisher publisher = new MyPublisher();
 40 |     publisher.subscribe(rws);
 41 |     assertNotNull(publisher.subscription);
 42 |     assertEquals(0, publisher.subscription.requestedTimes);
 43 |   }
 44 | 
 45 |   @Test
 46 |   public void testDatahandler() throws Exception {
 47 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
 48 |     MyPublisher publisher = new MyPublisher();
 49 |     publisher.subscribe(rws);
 50 |     assertNotNull(publisher.subscription);
 51 |     assertEquals(0, publisher.subscription.requestedTimes);
 52 |     List<Buffer> received = new ArrayList<>();
 53 |     rws.handler(received::add);
 54 |     assertEquals(1, publisher.subscription.requestedTimes);
 55 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE, publisher.subscription.requested);
 56 |     int numBuffers = 4;
 57 |     List<Buffer> buffers = createRandomBuffers(numBuffers);
 58 |     for (Buffer buffer: buffers) {
 59 |       publisher.subscriber.onNext(buffer);
 60 |     }
 61 |     assertEquals(numBuffers, received.size());
 62 |     for (int i = 0; i < numBuffers; i++) {
 63 |       assertEquals(buffers.get(i), received.get(i));
 64 |     }
 65 |     assertEquals(2, publisher.subscription.requestedTimes);
 66 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE * 2, publisher.subscription.requested);
 67 |   }
 68 | 
 69 |   @Test
 70 |   public void testSetPausedDataHandler() throws Exception {
 71 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
 72 |     MyPublisher publisher = new MyPublisher();
 73 |     publisher.subscribe(rws);
 74 |     assertNotNull(publisher.subscription);
 75 |     assertEquals(0, publisher.subscription.requestedTimes);
 76 |     List<Buffer> received = new ArrayList<>();
 77 |     rws.pause();
 78 |     rws.handler(received::add);
 79 |     assertEquals(0, publisher.subscription.requestedTimes);
 80 |     assertEquals(0, publisher.subscription.requested);
 81 | 
 82 |     assertEquals(0, received.size());
 83 |     assertEquals(0, publisher.subscription.requestedTimes);
 84 |     assertEquals(0, publisher.subscription.requested);
 85 |     rws.resume();
 86 |     assertEquals(1, publisher.subscription.requestedTimes);
 87 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE, publisher.subscription.requested);
 88 |     int numBuffers = 4;
 89 |     List<Buffer> buffers = createRandomBuffers(numBuffers);
 90 |     for (Buffer buffer: buffers) {
 91 |       publisher.subscriber.onNext(buffer);
 92 |     }
 93 |     assertEquals(numBuffers, received.size());
 94 |     for (int i = 0; i < numBuffers; i++) {
 95 |       assertEquals(buffers.get(i), received.get(i));
 96 |     }
 97 |   }
 98 | 
 99 |   @Test
100 |   public void testPauseInHandler() throws Exception {
101 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
102 |     MyPublisher publisher = new MyPublisher();
103 |     publisher.subscribe(rws);
104 |     assertNotNull(publisher.subscription);
105 |     assertEquals(0, publisher.subscription.requestedTimes);
106 |     List<Buffer> received = new ArrayList<>();
107 |     rws.handler(buff -> {
108 |       received.add(buff);
109 |       rws.pause();
110 |     });
111 |     assertEquals(1, publisher.subscription.requestedTimes);
112 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE, publisher.subscription.requested);
113 |     int numBuffers = 4;
114 |     List<Buffer> buffers = createRandomBuffers(numBuffers);
115 |     for (Buffer buffer: buffers) {
116 |       publisher.subscriber.onNext(buffer);
117 |     }
118 |     assertEquals(1, received.size());
119 |     assertEquals(buffers.get(0), received.get(0));
120 | 
121 |     assertEquals(1, publisher.subscription.requestedTimes);
122 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE, publisher.subscription.requested);
123 |   }
124 | 
125 |   @Test
126 |   public void testPauseResume() throws Exception {
127 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
128 |     MyPublisher publisher = new MyPublisher();
129 |     publisher.subscribe(rws);
130 |     assertNotNull(publisher.subscription);
131 |     assertEquals(0, publisher.subscription.requestedTimes);
132 |     List<Buffer> received = new ArrayList<>();
133 |     rws.handler(received::add);
134 |     assertEquals(1, publisher.subscription.requestedTimes);
135 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE, publisher.subscription.requested);
136 |     int numBuffers = 4;
137 |     List<Buffer> buffers = createRandomBuffers(numBuffers);
138 |     for (Buffer buffer: buffers) {
139 |       publisher.subscriber.onNext(buffer);
140 |     }
141 |     assertEquals(numBuffers, received.size());
142 |     for (int i = 0; i < numBuffers; i++) {
143 |       assertEquals(buffers.get(i), received.get(i));
144 |     }
145 |     rws.pause();
146 |     assertEquals(2, publisher.subscription.requestedTimes);
147 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE * 2, publisher.subscription.requested);
148 |     rws.resume();
149 |     assertEquals(2, publisher.subscription.requestedTimes);
150 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE * 2, publisher.subscription.requested);
151 |     buffers.clear();
152 |     received.clear();
153 |     buffers = createRandomBuffers(numBuffers);
154 |     for (Buffer buffer: buffers) {
155 |       publisher.subscriber.onNext(buffer);
156 |     }
157 |     assertEquals(numBuffers, received.size());
158 |     for (int i = 0; i < numBuffers; i++) {
159 |       assertEquals(buffers.get(i), received.get(i));
160 |     }
161 |   }
162 | 
163 |   @Test
164 |   public void testPauseResumeInHandler() throws Exception {
165 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
166 |     MyPublisher publisher = new MyPublisher();
167 |     publisher.subscribe(rws);
168 |     assertNotNull(publisher.subscription);
169 |     assertEquals(0, publisher.subscription.requestedTimes);
170 |     List<Buffer> received = new ArrayList<>();
171 |     rws.handler(buff -> {
172 |       rws.pause();
173 |       rws.resume();
174 |       received.add(buff);
175 |     });
176 |     assertEquals(1, publisher.subscription.requestedTimes);
177 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE, publisher.subscription.requested);
178 |     int numBuffers = 4;
179 |     List<Buffer> buffers = createRandomBuffers(numBuffers);
180 |     for (Buffer buffer: buffers) {
181 |       publisher.subscriber.onNext(buffer);
182 |     }
183 |     assertEquals(numBuffers, received.size());
184 |     for (int i = 0; i < numBuffers; i++) {
185 |       assertEquals(buffers.get(i), received.get(i));
186 |     }
187 |     assertEquals(2, publisher.subscription.requestedTimes);
188 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE * 2, publisher.subscription.requested);
189 |   }
190 | 
191 |   @Test
192 |   public void testFetch() throws Exception {
193 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
194 |     MyPublisher publisher = new MyPublisher();
195 |     publisher.subscribe(rws);
196 |     assertNotNull(publisher.subscription);
197 |     assertEquals(0, publisher.subscription.requestedTimes);
198 |     List<Buffer> received = new ArrayList<>();
199 |     rws.handler(received::add);
200 |     assertEquals(1, publisher.subscription.requestedTimes);
201 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE, publisher.subscription.requested);
202 |     int numBuffers = 4;
203 |     List<Buffer> buffers = createRandomBuffers(numBuffers);
204 |     for (Buffer buffer: buffers) {
205 |       publisher.subscriber.onNext(buffer);
206 |     }
207 |     assertEquals(numBuffers, received.size());
208 |     for (int i = 0; i < numBuffers; i++) {
209 |       assertEquals(buffers.get(i), received.get(i));
210 |     }
211 |     rws.pause();
212 |     assertEquals(2, publisher.subscription.requestedTimes);
213 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE * 2, publisher.subscription.requested);
214 |     assertEquals(2, publisher.subscription.requestedTimes);
215 |     assertEquals(ReactiveReadStream.DEFAULT_BATCH_SIZE * 2, publisher.subscription.requested);
216 |     buffers.clear();
217 |     received.clear();
218 |     buffers = createRandomBuffers(numBuffers);
219 |     for (Buffer buffer: buffers) {
220 |       publisher.subscriber.onNext(buffer);
221 |     }
222 |     for (int i = 0;i < numBuffers;i++) {
223 |       rws.fetch(1);
224 |       assertEquals(1 + i, received.size());
225 |     }
226 |     for (int i = 0; i < numBuffers; i++) {
227 |       assertEquals(buffers.get(i), received.get(i));
228 |     }
229 |   }
230 | 
231 |   @Test
232 |   public void testOnError() throws Exception {
233 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
234 |     MyPublisher publisher = new MyPublisher();
235 |     publisher.subscribe(rws);
236 |     rws.exceptionHandler(t -> {
237 |       assertTrue(t instanceof VertxException);
238 |       assertEquals("foo", t.getMessage());
239 |       testComplete();
240 |     });
241 |     publisher.subscriber.onError(new VertxException("foo"));
242 |     await();
243 |   }
244 | 
245 |   @Test
246 |   public void testOnComplete() throws Exception {
247 |     ReactiveReadStream<Buffer> rws = ReactiveReadStream.readStream();
248 |     MyPublisher publisher = new MyPublisher();
249 |     publisher.subscribe(rws);
250 |     rws.endHandler(v -> {
251 |       testComplete();
252 |     });
253 |     publisher.subscriber.onComplete();
254 |     await();
255 |   }
256 | 
257 |   class MySubscription implements Subscription {
258 | 
259 |     int requested;
260 |     int requestedTimes;
261 | 
262 |     @Override
263 |     public void request(long n) {
264 |       requestedTimes++;
265 |       requested += n;
266 |     }
267 | 
268 |     @Override
269 |     public void cancel() {
270 | 
271 |     }
272 |   }
273 | 
274 | 
275 |   class MyPublisher implements Publisher<Buffer> {
276 | 
277 |     MySubscription subscription;
278 |     Subscriber<? super Buffer> subscriber;
279 | 
280 |     @Override
281 |     public void subscribe(Subscriber<? super Buffer> subscriber) {
282 |       this.subscriber = subscriber;
283 |       subscription = new MySubscription();
284 |       subscriber.onSubscribe(subscription);
285 |     }
286 |   }
287 | 
288 | }
289 | 


--------------------------------------------------------------------------------
/src/test/java/io/vertx/ext/reactivestreams/test/ReactiveStreamTestBase.java:
--------------------------------------------------------------------------------
 1 | /*
 2 |  * Copyright 2014 Red Hat, Inc.
 3 |  *
 4 |  *  All rights reserved. This program and the accompanying materials
 5 |  *  are made available under the terms of the Eclipse Public License v1.0
 6 |  *  and Apache License v2.0 which accompanies this distribution.
 7 |  *
 8 |  *  The Eclipse Public License is available at
 9 |  *  http://www.eclipse.org/legal/epl-v10.html
10 |  *
11 |  *  The Apache License v2.0 is available at
12 |  *  http://www.opensource.org/licenses/apache2.0.php
13 |  *
14 |  *  You may elect to redistribute this code under either of these licenses.
15 |  */
16 | 
17 | package io.vertx.ext.reactivestreams.test;
18 | 
19 | import io.vertx.core.buffer.Buffer;
20 | import io.vertx.test.core.TestUtils;
21 | import io.vertx.test.core.VertxTestBase;
22 | 
23 | import java.util.ArrayList;
24 | import java.util.List;
25 | 
26 | /**
27 |  * @author <a href="http://tfox.org">Tim Fox</a>
28 |  */
29 | public class ReactiveStreamTestBase extends VertxTestBase {
30 | 
31 |   protected List<Buffer> createRandomBuffers(int number) {
32 |     List<Buffer> buffers = new ArrayList<>();
33 |     for (int i = 0; i < number; i++) {
34 |       buffers.add(TestUtils.randomBuffer(100));
35 |     }
36 |     return buffers;
37 |   }
38 | }
39 | 


--------------------------------------------------------------------------------
/src/test/java/io/vertx/ext/reactivestreams/test/ReactiveWriteStreamTest.java:
--------------------------------------------------------------------------------
  1 | /*
  2 |  * Copyright 2014 Red Hat, Inc.
  3 |  *
  4 |  *  All rights reserved. This program and the accompanying materials
  5 |  *  are made available under the terms of the Eclipse Public License v1.0
  6 |  *  and Apache License v2.0 which accompanies this distribution.
  7 |  *
  8 |  *  The Eclipse Public License is available at
  9 |  *  http://www.eclipse.org/legal/epl-v10.html
 10 |  *
 11 |  *  The Apache License v2.0 is available at
 12 |  *  http://www.opensource.org/licenses/apache2.0.php
 13 |  *
 14 |  *  You may elect to redistribute this code under either of these licenses.
 15 |  */
 16 | 
 17 | package io.vertx.ext.reactivestreams.test;
 18 | 
 19 | import io.vertx.core.Future;
 20 | import io.vertx.core.Promise;
 21 | import io.vertx.core.buffer.Buffer;
 22 | import io.vertx.ext.reactivestreams.ReactiveWriteStream;
 23 | import io.vertx.test.core.TestUtils;
 24 | import org.junit.Test;
 25 | import org.reactivestreams.Subscriber;
 26 | import org.reactivestreams.Subscription;
 27 | 
 28 | import java.util.List;
 29 | import java.util.concurrent.CopyOnWriteArrayList;
 30 | import java.util.concurrent.atomic.AtomicBoolean;
 31 | 
 32 | /**
 33 |  * @author <a href="http://tfox.org">Tim Fox</a>
 34 |  */
 35 | public class ReactiveWriteStreamTest extends ReactiveStreamTestBase {
 36 | 
 37 |   @Test
 38 |   public void testWriteNoTokensInitially() throws Exception {
 39 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
 40 | 
 41 |     MySubscriber subscriber = new MySubscriber();
 42 |     rws.subscribe(subscriber);
 43 | 
 44 |     assertWaitUntil(() -> subscriber.subscription != null);
 45 | 
 46 |     List<Buffer> buffers = createRandomBuffers(4);
 47 |     for (Buffer buffer: buffers) {
 48 |       rws.write(buffer);
 49 |     }
 50 | 
 51 |     assertTrue(subscriber.buffers.isEmpty());
 52 | 
 53 |     subscriber.subscription.request(1);
 54 | 
 55 |     assertWaitUntil(() -> subscriber.buffers.size() == 1);
 56 |     assertEquals(1, subscriber.buffers.size());
 57 |     assertSame(buffers.get(0), subscriber.buffers.get(0));
 58 | 
 59 |     subscriber.subscription.request(2);
 60 |     assertWaitUntil(() -> subscriber.buffers.size() == 3);
 61 |     assertEquals(3, subscriber.buffers.size());
 62 |     assertSame(buffers.get(1), subscriber.buffers.get(1));
 63 |     assertSame(buffers.get(2), subscriber.buffers.get(2));
 64 | 
 65 |   }
 66 | 
 67 |   @Test
 68 |   public void testWriteInitialTokens() throws Exception {
 69 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
 70 | 
 71 |     MySubscriber subscriber = new MySubscriber();
 72 |     rws.subscribe(subscriber);
 73 | 
 74 |     assertWaitUntil(() -> subscriber.subscription != null);
 75 |     subscriber.subscription.request(3);
 76 | 
 77 |     List<Buffer> buffers = createRandomBuffers(4);
 78 |     for (Buffer buffer: buffers) {
 79 |       rws.write(buffer);
 80 |     }
 81 | 
 82 |     assertWaitUntil(() -> subscriber.buffers.size() == 3);
 83 |     assertEquals(3, subscriber.buffers.size());
 84 |     assertSame(buffers.get(0), subscriber.buffers.get(0));
 85 |     assertSame(buffers.get(1), subscriber.buffers.get(1));
 86 |     assertSame(buffers.get(2), subscriber.buffers.get(2));
 87 | 
 88 |   }
 89 | 
 90 |   // TODO test setters for max writestreamsize and buffer size and valid values
 91 | 
 92 |   // TODO test cancel subscription
 93 | 
 94 |   @Test
 95 |   public void testMultipleSubscribers() throws Exception {
 96 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
 97 | 
 98 |     MySubscriber subscriber1 = new MySubscriber();
 99 |     rws.subscribe(subscriber1);
100 |     MySubscriber subscriber2 = new MySubscriber();
101 |     rws.subscribe(subscriber2);
102 |     MySubscriber subscriber3 = new MySubscriber();
103 |     rws.subscribe(subscriber3);
104 | 
105 |     assertWaitUntil(() -> subscriber1.subscription != null);
106 |     assertWaitUntil(() -> subscriber2.subscription != null);
107 |     assertWaitUntil(() -> subscriber3.subscription != null);
108 | 
109 |     List<Buffer> buffers = createRandomBuffers(10);
110 |     for (Buffer buffer: buffers) {
111 |       rws.write(buffer);
112 |     }
113 | 
114 |     assertEquals(0, subscriber1.buffers.size());
115 |     assertEquals(0, subscriber2.buffers.size());
116 |     assertEquals(0, subscriber3.buffers.size());
117 | 
118 |     // We go at the speed of the slowest consumer
119 |     subscriber1.subscription.request(1);
120 |     assertEquals(0, subscriber1.buffers.size());
121 |     assertEquals(0, subscriber2.buffers.size());
122 |     assertEquals(0, subscriber3.buffers.size());
123 | 
124 |     subscriber2.subscription.request(1);
125 |     assertEquals(0, subscriber1.buffers.size());
126 |     assertEquals(0, subscriber2.buffers.size());
127 |     assertEquals(0, subscriber3.buffers.size());
128 | 
129 |     subscriber3.subscription.request(1);
130 |     assertWaitUntil(() -> subscriber1.buffers.size() == 1);
131 |     assertWaitUntil(() -> subscriber2.buffers.size() == 1);
132 |     assertWaitUntil(() -> subscriber3.buffers.size() == 1);
133 |     assertEquals(1, subscriber1.buffers.size());
134 |     assertEquals(1, subscriber2.buffers.size());
135 |     assertEquals(1, subscriber3.buffers.size());
136 |     assertEquals(buffers.get(0), subscriber1.buffers.get(0));
137 |     assertEquals(buffers.get(0), subscriber2.buffers.get(0));
138 |     assertEquals(buffers.get(0), subscriber3.buffers.get(0));
139 | 
140 |     subscriber1.subscription.request(4);
141 |     assertEquals(1, subscriber1.buffers.size());
142 |     assertEquals(1, subscriber2.buffers.size());
143 |     assertEquals(1, subscriber3.buffers.size());
144 |     subscriber2.subscription.request(3);
145 |     assertEquals(1, subscriber1.buffers.size());
146 |     assertEquals(1, subscriber2.buffers.size());
147 |     assertEquals(1, subscriber3.buffers.size());
148 |     subscriber3.subscription.request(2);
149 |     assertWaitUntil(() -> subscriber1.buffers.size() == 3);
150 |     assertWaitUntil(() -> subscriber2.buffers.size() == 3);
151 |     assertWaitUntil(() -> subscriber3.buffers.size() == 3);
152 |     assertEquals(3, subscriber1.buffers.size());
153 |     assertEquals(3, subscriber2.buffers.size());
154 |     assertEquals(3, subscriber3.buffers.size());
155 |     assertEquals(buffers.get(0), subscriber1.buffers.get(0));
156 |     assertEquals(buffers.get(1), subscriber1.buffers.get(1));
157 |     assertEquals(buffers.get(2), subscriber1.buffers.get(2));
158 |     assertEquals(buffers.get(0), subscriber2.buffers.get(0));
159 |     assertEquals(buffers.get(1), subscriber2.buffers.get(1));
160 |     assertEquals(buffers.get(2), subscriber2.buffers.get(2));
161 |     assertEquals(buffers.get(0), subscriber3.buffers.get(0));
162 |     assertEquals(buffers.get(1), subscriber3.buffers.get(1));
163 |     assertEquals(buffers.get(2), subscriber3.buffers.get(2));
164 | 
165 |     subscriber2.subscription.request(1);
166 |     assertEquals(3, subscriber1.buffers.size());
167 |     assertEquals(3, subscriber2.buffers.size());
168 |     assertEquals(3, subscriber3.buffers.size());
169 |     subscriber3.subscription.request(2);
170 |     assertWaitUntil(() -> subscriber1.buffers.size() == 5);
171 |     assertWaitUntil(() -> subscriber2.buffers.size() == 5);
172 |     assertWaitUntil(() -> subscriber3.buffers.size() == 5);
173 |     assertEquals(5, subscriber1.buffers.size());
174 |     assertEquals(5, subscriber2.buffers.size());
175 |     assertEquals(5, subscriber3.buffers.size());
176 |     assertEquals(buffers.get(0), subscriber1.buffers.get(0));
177 |     assertEquals(buffers.get(1), subscriber1.buffers.get(1));
178 |     assertEquals(buffers.get(2), subscriber1.buffers.get(2));
179 |     assertEquals(buffers.get(3), subscriber1.buffers.get(3));
180 |     assertEquals(buffers.get(4), subscriber1.buffers.get(4));
181 |     assertEquals(buffers.get(0), subscriber2.buffers.get(0));
182 |     assertEquals(buffers.get(1), subscriber2.buffers.get(1));
183 |     assertEquals(buffers.get(2), subscriber2.buffers.get(2));
184 |     assertEquals(buffers.get(3), subscriber2.buffers.get(3));
185 |     assertEquals(buffers.get(4), subscriber2.buffers.get(4));
186 |     assertEquals(buffers.get(0), subscriber3.buffers.get(0));
187 |     assertEquals(buffers.get(1), subscriber3.buffers.get(1));
188 |     assertEquals(buffers.get(2), subscriber3.buffers.get(2));
189 |     assertEquals(buffers.get(3), subscriber3.buffers.get(3));
190 |     assertEquals(buffers.get(4), subscriber3.buffers.get(4));
191 |   }
192 | 
193 |   @Test
194 |   public void testWriteQueueFullAndDrainDefaultQueueSize() throws Exception {
195 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
196 |     testWriteQueueFullAndDrain(rws, 10);
197 |   }
198 | 
199 |   private void testWriteQueueFullAndDrain(ReactiveWriteStream<Buffer> rws, int writeQueueMaxSize) throws Exception {
200 |     rws.setWriteQueueMaxSize(writeQueueMaxSize);
201 |     MySubscriber subscriber = new MySubscriber();
202 |     rws.subscribe(subscriber);
203 |     for (int i = 0; i < writeQueueMaxSize - 1; i++) {
204 |       rws.write(TestUtils.randomBuffer(50));
205 |     }
206 |     assertFalse(rws.writeQueueFull());
207 |     Buffer buff2 = TestUtils.randomBuffer(100);
208 |     rws.write(buff2);
209 |     assertTrue(rws.writeQueueFull());
210 |     rws.drainHandler(v -> {
211 |       assertFalse(rws.writeQueueFull());
212 |       testComplete();
213 |     });
214 |     assertWaitUntil(() -> subscriber.subscription != null);
215 |     subscriber.subscription.request(2);
216 |     await();
217 |   }
218 | 
219 | 
220 |   class MySubscriber implements Subscriber<Buffer> {
221 | 
222 |     final List<Buffer> buffers = new CopyOnWriteArrayList<>();
223 |     volatile Subscription subscription;
224 | 
225 |     @Override
226 |     public void onSubscribe(Subscription subscription) {
227 |       this.subscription = subscription;
228 |     }
229 | 
230 |     @Override
231 |     public void onNext(Buffer buffer) {
232 |       buffers.add(buffer);
233 |     }
234 | 
235 |     @Override
236 |     public void onError(Throwable throwable) {
237 | 
238 |     }
239 | 
240 |     @Override
241 |     public void onComplete() {
242 | 
243 |     }
244 |   }
245 | 
246 |   @Test
247 |   public void testCancelSubscriptionOnError1() {
248 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
249 |     AtomicBoolean failed = new AtomicBoolean();
250 |     MySubscriber subscriber1 = new MySubscriber() {
251 |       @Override
252 |       public void onSubscribe(Subscription subscription) {
253 |         super.onSubscribe(subscription);
254 |         throw new RuntimeException();
255 |       }
256 |       @Override
257 |       public void onNext(Buffer buffer) {
258 |         fail();
259 |       }
260 |       @Override
261 |       public void onError(Throwable throwable) {
262 |         failed.set(true);
263 |       }
264 |     };
265 |     rws.subscribe(subscriber1);
266 |     MySubscriber subscriber2 = new MySubscriber() {
267 |       @Override
268 |       public void onSubscribe(Subscription subscription) {
269 |         subscription.request(1);
270 |         super.onSubscribe(subscription);
271 |       }
272 |       int count = 0;
273 |       @Override
274 |       public void onNext(Buffer buffer) {
275 |         if (++count == 1) {
276 |           testComplete();
277 |         }
278 |       }
279 |     };
280 |     rws.subscribe(subscriber2);
281 |     assertWaitUntil(() -> subscriber1.subscription != null);
282 |     assertWaitUntil(() -> subscriber2.subscription != null);
283 |     assertWaitUntil(failed::get);
284 |     rws.write(createRandomBuffers(1).get(0));
285 |     await();
286 |   }
287 | 
288 |   @Test
289 |   public void testCancelSubscriptionOnError2() {
290 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
291 |     AtomicBoolean failed = new AtomicBoolean();
292 |     MySubscriber subscriber1 = new MySubscriber() {
293 |       @Override
294 |       public void onSubscribe(Subscription subscription) {
295 |         subscription.request(2);
296 |         super.onSubscribe(subscription);
297 |       }
298 |       @Override
299 |       public void onNext(Buffer buffer) {
300 |         if (!failed.get()) {
301 |           throw new RuntimeException();
302 |         } else {
303 |           fail();
304 |         }
305 |       }
306 |       @Override
307 |       public void onError(Throwable throwable) {
308 |         failed.set(true);
309 |       }
310 |     };
311 |     rws.subscribe(subscriber1);
312 |     MySubscriber subscriber2 = new MySubscriber() {
313 |       @Override
314 |       public void onSubscribe(Subscription subscription) {
315 |         subscription.request(3);
316 |         super.onSubscribe(subscription);
317 |       }
318 |       int count = 0;
319 |       @Override
320 |       public void onNext(Buffer buffer) {
321 |         if (++count == 3) {
322 |           testComplete();
323 |         }
324 |       }
325 |     };
326 |     rws.subscribe(subscriber2);
327 |     assertWaitUntil(() -> subscriber1.subscription != null);
328 |     assertWaitUntil(() -> subscriber2.subscription != null);
329 |     rws.write(createRandomBuffers(1).get(0));
330 |     assertWaitUntil(failed::get);
331 |     rws.write(createRandomBuffers(1).get(0));
332 |     rws.write(createRandomBuffers(1).get(0));
333 |     await();
334 |   }
335 | 
336 |   @Test
337 |   public void testWriteHandler() {
338 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
339 |     Promise<Void> f1 = Promise.promise();
340 |     rws.write(createRandomBuffers(1).get(0)).onComplete(f1);
341 |     assertFalse(f1.future().isComplete());
342 |     rws.subscribe(new MySubscriber() {
343 |       @Override
344 |       public void onSubscribe(Subscription subscription) {
345 |         subscription.request(1);
346 |       }
347 |     });
348 |     waitUntil(f1.future()::succeeded);
349 |   }
350 | 
351 |   @Test
352 |   public void testWriteHandlerFailure() {
353 |     ReactiveWriteStream<Buffer> rws = ReactiveWriteStream.writeStream(vertx);
354 |     Promise<Void> f1 = Promise.promise();
355 |     rws.write(createRandomBuffers(1).get(0)).onComplete(f1);
356 |     assertFalse(f1.future().isComplete());
357 |     Promise<Void> f2 = Promise.promise();
358 |     rws.end().onComplete(f2);
359 |     waitUntil(f1.future()::failed);
360 |     waitUntil(f2.future()::succeeded);
361 |   }
362 | }
363 | 


--------------------------------------------------------------------------------
/src/test/java/module-info.java:
--------------------------------------------------------------------------------
 1 | module io.vertx.reactivestreams.tests {
 2 |   requires io.vertx.core;
 3 |   requires io.vertx.core.tests;
 4 |   requires io.vertx.reactivestreams;
 5 |   requires junit;
 6 |   requires org.reactivestreams;
 7 |   requires org.reactivestreams.tck;
 8 | 
 9 |   exports io.vertx.ext.reactivestreams.test;
10 |   exports io.vertx.ext.reactivestreams.tck;
11 | }
12 | 


--------------------------------------------------------------------------------