I have a simple Domain data class
@Document
data class Domain1Config(
@Id val id: String = <prop_to_init>,
val client: String,
val size: String
) : Serializable
and I want to initialize its id property with a value that will be computed in a @Component annotated with @RequestScope
@Component
@RequestScope
class CurrentInstance() {
private var currentInstance: String? = null
fun getCurrentInstanceId() = currentInstance
fun setCurrentInstanceId(instanceToSet: String) = {
currentInstance = instanceToSet
}
}
Solutions that I've tried so far weren't optimal:
- access to the
ThreadLocalfrom a static function call during initialization of the property which avoids the issue of dependency injection into objects that are not instantiated by Spring => butThreadLocaluse means potential memory leaks - Spring's
@ConfigurablewithAspectJ Weavingto inject Spring Beans into unmanaged objects (tried with both load-time & compile-time weaving, very setup-heavy and none seem to work properly with Kotlin + Java version 11+) => I'm also not sure if it's recommended or it's good practice to go on theAspectJ Weavingway
Regarding the AspectJ compile-time weaving, here are the plugins I'm using at compile time:
<plugin>
<artifactId>kotlin-maven-plugin</artifactId>
<groupId>org.jetbrains.kotlin</groupId>
<version>${kotlin.version}</version>
<configuration>
<compilerPlugins>
<plugin>spring</plugin>
</compilerPlugins>
<jvmTarget>${java.version}</jvmTarget>
</configuration>
<!-- Automatically opens all classes that are necessary for Spring to work -->
<dependencies>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-maven-allopen</artifactId>
<version>${kotlin.version}</version>
</dependency>
</dependencies>
<executions>
<execution>
<id>kapt</id>
<goals>
<goal>kapt</goal>
</goals>
<configuration>
<sourceDirs>
<sourceDir>src/main/kotlin</sourceDir>
<sourceDir>src/main/java</sourceDir>
<sourceDir>target/generated-sources/annotations</sourceDir>
<sourceDir>target/generated-sources/openapi/src/main/kotlin</sourceDir>
</sourceDirs>
<annotationProcessorPaths>
<annotationProcessorPath>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${mapstruct.version}</version>
</annotationProcessorPath>
</annotationProcessorPaths>
</configuration>
</execution>
<execution>
<id>compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/main/kotlin</source>
<source>src/main/java</source>
<source>target/generated-sources/annotations</source>
<source>target/generated-sources/openapi/src/main/kotlin</source>
</sourceDirs>
</configuration>
</execution>
<execution>
<id>test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>test-compile</goal>
</goals>
<configuration>
<sourceDirs>
<source>src/test/kotlin</source>
<source>src/test/java</source>
</sourceDirs>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<annotationProcessorPaths>
<path>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-configuration-processor</artifactId>
<version>${spring-boot.version}</version>
</path>
<!-- jhipster-needle-maven-add-annotation-processor -->
</annotationProcessorPaths>
</configuration>
<executions>
<!-- Replacing default-compile as it is treated specially by maven -->
<execution>
<id>default-compile</id>
<phase>none</phase>
</execution>
<!-- Replacing default-testCompile as it is treated specially by maven -->
<execution>
<id>default-testCompile</id>
<phase>none</phase>
</execution>
<execution>
<id>java-compile</id>
<phase>compile</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>java-test-compile</id>
<phase>test-compile</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<version>1.14.0</version>
<configuration>
<forceAjcCompile>true</forceAjcCompile>
<sources />
<weaveDirectories>
<weaveDirectory>${project.build.directory}/classes</weaveDirectory>
</weaveDirectories>
<source>11</source>
<target>11</target>
<encoding>UTF-8</encoding>
<complianceLevel>11</complianceLevel>
<aspectLibraries>
<aspectLibrary>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
</aspectLibrary>
</aspectLibraries>
</configuration>
<executions>
<execution>
<phase>process-classes</phase>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
<dependencies>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.9.7</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjtools</artifactId>
<version>1.9.7</version>
</dependency>
</dependencies>
</plugin>
I was wondering what would be a good/best practice to follow in this specific case?
