├── .gitignore ├── .idea └── vcs.xml ├── LICENSE ├── README.md ├── build.gradle ├── customer ├── build.gradle └── src │ └── main │ └── kotlin │ └── cz │ └── zubal │ └── spring │ └── multimodule │ └── customer │ ├── CustomerEntity.kt │ ├── CustomerRepo.kt │ ├── RepositoryCustomerService.kt │ └── api │ ├── Customer.kt │ └── CustomerService.kt ├── doc └── module-access.jpg ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── item ├── build.gradle └── src │ └── main │ └── kotlin │ └── cz │ └── zubal │ └── spring │ └── multimodule │ └── item │ ├── ItemEntity.kt │ ├── ItemRepo.kt │ ├── RepositoryItemService.kt │ └── api │ ├── Item.kt │ └── ItemService.kt ├── order ├── build.gradle └── src │ └── main │ └── kotlin │ └── cz │ └── zubal │ └── spring │ └── multimodule │ └── order │ ├── OrderEntity.kt │ ├── OrderRepo.kt │ ├── RepositoryOrderService.kt │ └── api │ ├── Order.kt │ └── OrderService.kt ├── settings.gradle └── src ├── main └── kotlin │ └── cz │ └── zubal │ └── spring │ └── multimodule │ └── SpringBootMultimoduleApplication.kt └── test └── kotlin └── cz └── zubal └── spring └── multimodule └── SpringBootMultimoduleApplicationTests.kt /.gitignore: -------------------------------------------------------------------------------- 1 | # Created by .ignore support plugin (hsz.mobi) 2 | ### Gradle template 3 | .gradle 4 | /build/ 5 | 6 | # Ignore Gradle GUI config 7 | gradle-app.setting 8 | 9 | # Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored) 10 | !gradle-wrapper.jar 11 | 12 | # Cache of project 13 | .gradletasknamecache 14 | 15 | # # Work around https://youtrack.jetbrains.com/issue/IDEA-116898 16 | # gradle/wrapper/gradle-wrapper.properties 17 | 18 | ### IntelliJ IDEA ### 19 | .idea 20 | *.iws 21 | *.iml 22 | *.ipr 23 | .out -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2018 Miloš Zubal 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Demo of module isolation with Spring-boot, Gradle and Kotlin 2 | This repository represents a very simple proof of concept of creating a **monolithic** **spring-boot** project with **separation** of internal components via Kotlin APIs (hiding their internals from others). This is done via utilising the **internal** Kotlin visibility modifier, which limits the visibility to the scope of the current module (which provides more isolation than Java's *package* protection - think of intentionally creating the same package as in your dependency to access it's package protected classes). The goal of this sample project is just to verify this works well with Spring and other libraries (it is also a migration of [spring-boot-monolith](https://github.com/mzubal/spring-boot-monolith) to Gradle modules and Kotlin). 3 | 4 | The APIs are very loosely coupled and it would be quite easy to change e.g. the persistence for each "service" or transform this to use microservices. 5 | 6 | The project uses **spring-data** as a persistence layer for all the "services". It also takes advantage of **ObjectMapper** to reduce the boilerplate needed. 7 | 8 | Following figure demonstrates the isolation by trying to use *ItemEntity* (internal to *item* module) in the *order* module: 9 | ![modules](doc/module-access.jpg) 10 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | buildscript { 2 | ext { 3 | kotlinVersion = '1.2.41' 4 | springBootVersion = '2.0.2.RELEASE' 5 | } 6 | repositories { 7 | mavenCentral() 8 | } 9 | dependencies { 10 | classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}") 11 | classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:${kotlinVersion}") 12 | classpath("org.jetbrains.kotlin:kotlin-allopen:${kotlinVersion}") 13 | } 14 | } 15 | 16 | allprojects { 17 | apply plugin: 'kotlin' 18 | apply plugin: 'kotlin-spring' 19 | apply plugin: 'idea' 20 | apply plugin: 'io.spring.dependency-management' 21 | 22 | group = 'cz.zubal' 23 | version = '0.1' 24 | sourceCompatibility = 1.8 25 | compileKotlin { 26 | kotlinOptions { 27 | freeCompilerArgs = ["-Xjsr305=strict"] 28 | jvmTarget = "1.8" 29 | } 30 | } 31 | compileTestKotlin { 32 | kotlinOptions { 33 | freeCompilerArgs = ["-Xjsr305=strict"] 34 | jvmTarget = "1.8" 35 | } 36 | } 37 | 38 | repositories { 39 | mavenCentral() 40 | } 41 | 42 | dependencyManagement { 43 | imports { mavenBom("org.springframework.boot:spring-boot-dependencies:${springBootVersion}") } 44 | } 45 | 46 | dependencies { 47 | compile('org.springframework.boot:spring-boot-starter-data-jpa') 48 | compile('org.springframework.boot:spring-boot-starter-web') 49 | compile('com.fasterxml.jackson.module:jackson-module-kotlin') 50 | compile("org.jetbrains.kotlin:kotlin-stdlib-jdk8") 51 | compile("org.jetbrains.kotlin:kotlin-reflect") 52 | compile("org.modelmapper:modelmapper:1.1.2") 53 | testCompile("com.h2database:h2:1.4.196") 54 | runtime('org.springframework.boot:spring-boot-devtools') 55 | testCompile('org.springframework.boot:spring-boot-starter-test') 56 | } 57 | } 58 | 59 | dependencies { 60 | compile project(':customer') 61 | compile project(':item') 62 | compile project(':order') 63 | } 64 | -------------------------------------------------------------------------------- /customer/build.gradle: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mzubal/spring-gradle-kotlin-multimodule/083e6953c7baf5d82c75e3dc2ec555cbf984efcc/customer/build.gradle -------------------------------------------------------------------------------- /customer/src/main/kotlin/cz/zubal/spring/multimodule/customer/CustomerEntity.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.customer 2 | 3 | import javax.persistence.Entity 4 | import javax.persistence.GeneratedValue 5 | import javax.persistence.Id 6 | 7 | @Entity 8 | internal data class CustomerEntity ( 9 | 10 | @Id 11 | @GeneratedValue 12 | var id: Long? = null, 13 | var username: String? = null, 14 | var firstName: String? = null, 15 | var lastName: String? = null 16 | 17 | ) 18 | -------------------------------------------------------------------------------- /customer/src/main/kotlin/cz/zubal/spring/multimodule/customer/CustomerRepo.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.customer 2 | 3 | import org.springframework.data.repository.CrudRepository 4 | 5 | internal interface CustomerRepo : CrudRepository { 6 | 7 | fun findByUsername(username: String?): CustomerEntity 8 | 9 | } 10 | -------------------------------------------------------------------------------- /customer/src/main/kotlin/cz/zubal/spring/multimodule/customer/RepositoryCustomerService.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.customer 2 | 3 | import cz.zubal.spring.multimodule.customer.api.Customer 4 | import cz.zubal.spring.multimodule.customer.api.CustomerService 5 | import org.modelmapper.ModelMapper 6 | import org.modelmapper.TypeToken 7 | import org.springframework.beans.factory.annotation.Autowired 8 | import org.springframework.stereotype.Component 9 | import java.lang.reflect.Type 10 | 11 | @Component 12 | internal class RepositoryCustomerService : CustomerService { 13 | 14 | @Autowired 15 | lateinit var customerRepo: CustomerRepo 16 | 17 | @Autowired 18 | lateinit var modelMapper: ModelMapper 19 | 20 | var customerListType: Type = object : TypeToken>(){}.type 21 | 22 | override fun list(): List { 23 | return modelMapper.map(customerRepo.findAll(), customerListType) 24 | } 25 | 26 | override fun findByUsername(username: String?): Customer { 27 | return modelMapper.map(customerRepo.findByUsername(username), Customer::class.java) 28 | } 29 | 30 | override fun create(customer: Customer) { 31 | customerRepo.save(modelMapper.map(customer, CustomerEntity::class.java)) 32 | } 33 | } 34 | -------------------------------------------------------------------------------- /customer/src/main/kotlin/cz/zubal/spring/multimodule/customer/api/Customer.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.customer.api 2 | 3 | data class Customer( 4 | var username: String? = null, 5 | var firstName: String? = null, 6 | var lastName: String? = null 7 | ) 8 | -------------------------------------------------------------------------------- /customer/src/main/kotlin/cz/zubal/spring/multimodule/customer/api/CustomerService.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.customer.api 2 | 3 | interface CustomerService { 4 | 5 | fun list(): List 6 | fun findByUsername(username: String?): Customer 7 | fun create(customer: Customer) 8 | 9 | } 10 | -------------------------------------------------------------------------------- /doc/module-access.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mzubal/spring-gradle-kotlin-multimodule/083e6953c7baf5d82c75e3dc2ec555cbf984efcc/doc/module-access.jpg -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/mzubal/spring-gradle-kotlin-multimodule/083e6953c7baf5d82c75e3dc2ec555cbf984efcc/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Sun Mar 04 10:38:06 GMT 2018 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.8-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env sh 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Attempt to set APP_HOME 10 | # Resolve links: $0 may be a link 11 | PRG="$0" 12 | # Need this for relative symlinks. 13 | while [ -h "$PRG" ] ; do 14 | ls=`ls -ld "$PRG"` 15 | link=`expr "$ls" : '.*-> \(.*\)$'` 16 | if expr "$link" : '/.*' > /dev/null; then 17 | PRG="$link" 18 | else 19 | PRG=`dirname "$PRG"`"/$link" 20 | fi 21 | done 22 | SAVED="`pwd`" 23 | cd "`dirname \"$PRG\"`/" >/dev/null 24 | APP_HOME="`pwd -P`" 25 | cd "$SAVED" >/dev/null 26 | 27 | APP_NAME="Gradle" 28 | APP_BASE_NAME=`basename "$0"` 29 | 30 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 31 | DEFAULT_JVM_OPTS="" 32 | 33 | # Use the maximum available, or set MAX_FD != -1 to use that value. 34 | MAX_FD="maximum" 35 | 36 | warn () { 37 | echo "$*" 38 | } 39 | 40 | die () { 41 | echo 42 | echo "$*" 43 | echo 44 | exit 1 45 | } 46 | 47 | # OS specific support (must be 'true' or 'false'). 48 | cygwin=false 49 | msys=false 50 | darwin=false 51 | nonstop=false 52 | case "`uname`" in 53 | CYGWIN* ) 54 | cygwin=true 55 | ;; 56 | Darwin* ) 57 | darwin=true 58 | ;; 59 | MINGW* ) 60 | msys=true 61 | ;; 62 | NONSTOP* ) 63 | nonstop=true 64 | ;; 65 | esac 66 | 67 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 68 | 69 | # Determine the Java command to use to start the JVM. 70 | if [ -n "$JAVA_HOME" ] ; then 71 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 72 | # IBM's JDK on AIX uses strange locations for the executables 73 | JAVACMD="$JAVA_HOME/jre/sh/java" 74 | else 75 | JAVACMD="$JAVA_HOME/bin/java" 76 | fi 77 | if [ ! -x "$JAVACMD" ] ; then 78 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 79 | 80 | Please set the JAVA_HOME variable in your environment to match the 81 | location of your Java installation." 82 | fi 83 | else 84 | JAVACMD="java" 85 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 86 | 87 | Please set the JAVA_HOME variable in your environment to match the 88 | location of your Java installation." 89 | fi 90 | 91 | # Increase the maximum file descriptors if we can. 92 | if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then 93 | MAX_FD_LIMIT=`ulimit -H -n` 94 | if [ $? -eq 0 ] ; then 95 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 96 | MAX_FD="$MAX_FD_LIMIT" 97 | fi 98 | ulimit -n $MAX_FD 99 | if [ $? -ne 0 ] ; then 100 | warn "Could not set maximum file descriptor limit: $MAX_FD" 101 | fi 102 | else 103 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 104 | fi 105 | fi 106 | 107 | # For Darwin, add options to specify how the application appears in the dock 108 | if $darwin; then 109 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 110 | fi 111 | 112 | # For Cygwin, switch paths to Windows format before running java 113 | if $cygwin ; then 114 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 115 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 116 | JAVACMD=`cygpath --unix "$JAVACMD"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Escape application args 158 | save () { 159 | for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done 160 | echo " " 161 | } 162 | APP_ARGS=$(save "$@") 163 | 164 | # Collect all arguments for the java command, following the shell quoting and substitution rules 165 | eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS" 166 | 167 | # by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong 168 | if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then 169 | cd "$(dirname "$0")" 170 | fi 171 | 172 | exec "$JAVACMD" "$@" 173 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | set DIRNAME=%~dp0 12 | if "%DIRNAME%" == "" set DIRNAME=. 13 | set APP_BASE_NAME=%~n0 14 | set APP_HOME=%DIRNAME% 15 | 16 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 17 | set DEFAULT_JVM_OPTS= 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windows variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | 53 | :win9xME_args 54 | @rem Slurp the command line arguments. 55 | set CMD_LINE_ARGS= 56 | set _SKIP=2 57 | 58 | :win9xME_args_slurp 59 | if "x%~1" == "x" goto execute 60 | 61 | set CMD_LINE_ARGS=%* 62 | 63 | :execute 64 | @rem Setup the command line 65 | 66 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 67 | 68 | @rem Execute Gradle 69 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 70 | 71 | :end 72 | @rem End local scope for the variables with windows NT shell 73 | if "%ERRORLEVEL%"=="0" goto mainEnd 74 | 75 | :fail 76 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 77 | rem the _cmd.exe /c_ return code! 78 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 79 | exit /b 1 80 | 81 | :mainEnd 82 | if "%OS%"=="Windows_NT" endlocal 83 | 84 | :omega 85 | -------------------------------------------------------------------------------- /item/build.gradle: -------------------------------------------------------------------------------- 1 | dependencies { 2 | compile project(':customer') 3 | } -------------------------------------------------------------------------------- /item/src/main/kotlin/cz/zubal/spring/multimodule/item/ItemEntity.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.item 2 | 3 | import java.math.BigDecimal 4 | import javax.persistence.Entity 5 | import javax.persistence.GeneratedValue 6 | import javax.persistence.Id 7 | 8 | @Entity 9 | internal data class ItemEntity ( 10 | 11 | @Id 12 | @GeneratedValue 13 | var id: Long? = null, 14 | var uuid: String? = null, 15 | var type: String? = null, 16 | var name: String? = null, 17 | var price: BigDecimal? = null, 18 | var description: String? = null 19 | 20 | ) 21 | -------------------------------------------------------------------------------- /item/src/main/kotlin/cz/zubal/spring/multimodule/item/ItemRepo.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.item 2 | 3 | import org.springframework.data.repository.CrudRepository 4 | 5 | internal interface ItemRepo : CrudRepository { 6 | 7 | fun findByUuid(uuid: String): ItemEntity 8 | fun findAllByUuidIn(itemUuids: List): List 9 | 10 | } 11 | -------------------------------------------------------------------------------- /item/src/main/kotlin/cz/zubal/spring/multimodule/item/RepositoryItemService.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.item 2 | 3 | import cz.zubal.spring.multimodule.customer.api.Customer 4 | import cz.zubal.spring.multimodule.item.api.Item 5 | import cz.zubal.spring.multimodule.item.api.ItemService 6 | import org.modelmapper.ModelMapper 7 | import org.modelmapper.TypeToken 8 | import org.springframework.beans.factory.annotation.Autowired 9 | import org.springframework.stereotype.Component 10 | 11 | @Component 12 | internal class RepositoryItemService : ItemService { 13 | 14 | @Autowired 15 | lateinit var itemRepo: ItemRepo 16 | 17 | @Autowired 18 | lateinit var modelMapper: ModelMapper 19 | 20 | private var customerListType = object : TypeToken>(){}.type 21 | 22 | override fun list(): List { 23 | return modelMapper.map>(itemRepo.findAll(), customerListType) 24 | } 25 | 26 | override fun findByUuid(uuid: String): Item { 27 | return modelMapper.map(itemRepo.findByUuid(uuid), Item::class.java) 28 | } 29 | 30 | override fun findByUuids(uuids: List): List { 31 | return modelMapper.map>(itemRepo.findAllByUuidIn(uuids), customerListType) 32 | } 33 | 34 | override fun create(item: Item): Item { 35 | val dbItem = itemRepo.save(modelMapper.map(item, ItemEntity::class.java)) 36 | return modelMapper.map(dbItem, Item::class.java) 37 | } 38 | } 39 | -------------------------------------------------------------------------------- /item/src/main/kotlin/cz/zubal/spring/multimodule/item/api/Item.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.item.api 2 | 3 | import java.math.BigDecimal 4 | 5 | data class Item( 6 | 7 | var uuid: String? = null, 8 | var type: String? = null, 9 | var name: String? = null, 10 | var price: BigDecimal? = null, 11 | var description: String? = null 12 | 13 | ) 14 | -------------------------------------------------------------------------------- /item/src/main/kotlin/cz/zubal/spring/multimodule/item/api/ItemService.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.item.api 2 | 3 | interface ItemService { 4 | 5 | fun list(): List 6 | fun findByUuid(uuid: String): Item 7 | fun findByUuids(uuids: List): List 8 | fun create(item: Item): Item 9 | 10 | } 11 | -------------------------------------------------------------------------------- /order/build.gradle: -------------------------------------------------------------------------------- 1 | dependencies { 2 | compile project(':customer') 3 | compile project(':item') 4 | } -------------------------------------------------------------------------------- /order/src/main/kotlin/cz/zubal/spring/multimodule/order/OrderEntity.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.order 2 | 3 | import javax.persistence.ElementCollection 4 | import javax.persistence.Entity 5 | import javax.persistence.GeneratedValue 6 | import javax.persistence.Id 7 | 8 | @Entity 9 | internal data class OrderEntity ( 10 | 11 | @Id 12 | @GeneratedValue 13 | var id: Long? = null, 14 | var uuid: String? = null, 15 | var username: String? = null, 16 | 17 | @ElementCollection 18 | var items: List = emptyList() 19 | 20 | ) 21 | -------------------------------------------------------------------------------- /order/src/main/kotlin/cz/zubal/spring/multimodule/order/OrderRepo.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.order 2 | 3 | import org.springframework.data.repository.CrudRepository 4 | 5 | internal interface OrderRepo : CrudRepository { 6 | 7 | fun findByUuid(uuid: String): OrderEntity 8 | 9 | } 10 | -------------------------------------------------------------------------------- /order/src/main/kotlin/cz/zubal/spring/multimodule/order/RepositoryOrderService.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.order 2 | 3 | import cz.zubal.spring.multimodule.customer.api.CustomerService 4 | import cz.zubal.spring.multimodule.item.api.ItemService 5 | import cz.zubal.spring.multimodule.order.api.Order 6 | import cz.zubal.spring.multimodule.order.api.OrderService 7 | import org.modelmapper.ModelMapper 8 | import org.springframework.beans.factory.annotation.Autowired 9 | import org.springframework.stereotype.Component 10 | 11 | @Component 12 | internal class RepositoryOrderService : OrderService { 13 | 14 | @Autowired 15 | lateinit var customerService: CustomerService 16 | 17 | @Autowired 18 | lateinit var itemService: ItemService 19 | 20 | @Autowired 21 | lateinit var orderRepo: OrderRepo 22 | 23 | @Autowired 24 | lateinit var modelMapper: ModelMapper 25 | 26 | override fun list(): List { 27 | return orderRepo.findAll().map { it -> mapToApiOrder(it) } 28 | } 29 | 30 | override fun findByUuid(uuid: String): Order { 31 | return mapToApiOrder(orderRepo.findByUuid(uuid)) 32 | } 33 | 34 | override fun create(order: Order): Order { 35 | val orderEntity = modelMapper.map(order, OrderEntity::class.java) 36 | orderEntity.username = order.customer?.username 37 | orderEntity.items = order.items.map{it -> it.uuid}.requireNoNulls() 38 | return mapToApiOrder(orderRepo.save(orderEntity)) 39 | } 40 | 41 | private fun mapToApiOrder(dbOrder: OrderEntity): Order { 42 | val order = modelMapper.map(dbOrder, Order::class.java) 43 | order.customer = customerService.findByUsername(dbOrder.username) 44 | order.items = itemService.findByUuids(dbOrder.items) 45 | return order 46 | } 47 | 48 | } 49 | -------------------------------------------------------------------------------- /order/src/main/kotlin/cz/zubal/spring/multimodule/order/api/Order.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.order.api 2 | 3 | import cz.zubal.spring.multimodule.customer.api.Customer 4 | import cz.zubal.spring.multimodule.item.api.Item 5 | 6 | data class Order( 7 | 8 | var uuid: String? = null, 9 | var customer: Customer? = null, 10 | var items: List = emptyList() 11 | 12 | ) 13 | -------------------------------------------------------------------------------- /order/src/main/kotlin/cz/zubal/spring/multimodule/order/api/OrderService.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule.order.api 2 | 3 | interface OrderService { 4 | 5 | fun list(): List 6 | fun findByUuid(uuid: String): Order 7 | fun create(order: Order): Order 8 | 9 | } 10 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include 'customer' 2 | include 'item' 3 | include 'order' 4 | -------------------------------------------------------------------------------- /src/main/kotlin/cz/zubal/spring/multimodule/SpringBootMultimoduleApplication.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule 2 | 3 | import org.modelmapper.ModelMapper 4 | import org.springframework.boot.SpringApplication 5 | import org.springframework.boot.autoconfigure.SpringBootApplication 6 | import org.springframework.context.annotation.Bean 7 | 8 | @SpringBootApplication 9 | class SpringBootMultimoduleApplication { 10 | 11 | fun main(args: Array) { 12 | SpringApplication.run(SpringBootMultimoduleApplication::class.java, *args) 13 | } 14 | 15 | @Bean 16 | internal fun modelMapper(): ModelMapper { 17 | return ModelMapper() 18 | } 19 | 20 | } 21 | -------------------------------------------------------------------------------- /src/test/kotlin/cz/zubal/spring/multimodule/SpringBootMultimoduleApplicationTests.kt: -------------------------------------------------------------------------------- 1 | package cz.zubal.spring.multimodule 2 | 3 | import cz.zubal.spring.multimodule.customer.api.Customer 4 | import cz.zubal.spring.multimodule.customer.api.CustomerService 5 | import cz.zubal.spring.multimodule.item.api.Item 6 | import cz.zubal.spring.multimodule.item.api.ItemService 7 | import cz.zubal.spring.multimodule.order.api.Order 8 | import cz.zubal.spring.multimodule.order.api.OrderService 9 | import org.junit.Test 10 | import org.junit.runner.RunWith 11 | import org.springframework.beans.factory.annotation.Autowired 12 | import org.springframework.boot.test.context.SpringBootTest 13 | import org.springframework.test.context.junit4.SpringRunner 14 | import java.math.BigDecimal 15 | 16 | @RunWith(SpringRunner::class) 17 | @SpringBootTest 18 | class SpringBootMultimoduleApplicationTests { 19 | 20 | @Autowired 21 | internal lateinit var orderService: OrderService 22 | 23 | @Autowired 24 | internal lateinit var customerService: CustomerService 25 | 26 | @Autowired 27 | internal lateinit var itemService: ItemService 28 | 29 | @Test 30 | fun simpleIntegrationTest() { 31 | val customer = Customer() 32 | customer.username = "milos" 33 | customer.firstName = "Milos" 34 | customer.lastName = "Zubal" 35 | customerService.create(customer) 36 | 37 | val item = Item() 38 | item.uuid = "item-1" 39 | item.name = "vim" 40 | item.description = "Text editor to learn." 41 | item.type = "Text Editor" 42 | item.price = BigDecimal(0) 43 | itemService.create(item) 44 | 45 | val order = Order() 46 | order.customer = customer 47 | order.items = listOf(item) 48 | orderService.create(order) 49 | } 50 | } 51 | --------------------------------------------------------------------------------