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‎.gitattributes

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#
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# https://help.github.com/articles/dealing-with-line-endings/
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#
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# These are explicitly windows files and should use crlf
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*.bat text eol=crlf

‎.gitignore

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# Ignore Gradle project-specific cache directory
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.gradle
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# Ignore Gradle build output directory
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build
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lib/build
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.idea

‎LICENSE

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Apache License
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Version 2.0, January 2004
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‎README.md

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# Kafka Connect Single Message Transforms
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This is an implementation of the [Kafka Connect SMT](https://docs.confluent.io/platform/current/connect/transforms/overview.html) interface
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to offer some widely used transformations
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## Build
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The library uses Gradle to build the JAR.
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1. Install latest Java SDK.
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2. Checkout the Git repository and change to its root folder.
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3. Execute `./gradlew build`
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The JAR can then be found in the `build/libs/` subfolder.
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## Install
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After the JAR was build as described above, copy it to your Kafka Connect instance into one of the directories listed in
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the `plugin.path` property in the connect worker configuration file.
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> Make sure to do this on all Kafka Connect worker nodes!
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See the [Confluent Kafka Connect Plugins Userguide](https://docs.confluent.io/home/connect/self-managed/userguide.html#installing-kconnect-plugins) for more details.
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## Example
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### Connector Configuration
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```json
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{
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"name": ...,
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"config": {
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...,
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"transforms": "trim,substring,radix",
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"transforms.trim.type": "org.phpinnacle.toblerone.TrimTransform$Value",
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"transforms.trim.fields": "comma,separated,list,of,fields",
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"transforms.substring.type": "org.phpinnacle.toblerone.SubstringTransform$Value",
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"transforms.substring.fields": "foo:1:3,bar:2",
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"transforms.radix.type": "org.phpinnacle.toblerone.RadixTransform$Value",
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"transforms.radix.fields": "foo:16,bar:36"
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}
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}
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```
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> Note that the transformer only supports some kind of structured input. So make sure that there is a [converter](https://www.confluent.io/blog/kafka-connect-deep-dive-converters-serialization-explained/) class (e.g. [AvroConverter](https://www.confluent.io/hub/confluentinc/kafka-connect-avro-converter), [JsonConverter](https://www.confluent.io/hub/confluentinc/kafka-connect-json-schema-converter)) like `"value.converter": "io.confluent.connect.avro.AvroConverter"` that provides the data in a structured format.

‎build.gradle.kts

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/*
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* User Manual available at https://docs.gradle.org/7.4/userguide/building_java_projects.html
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*/
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group = "at.willhaben.kafka.connect.transforms.jslt"
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version = System.getenv("VERSION") ?: "1.0.0"
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val javaVersion = 11
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val artifactoryContext =
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project.properties.getOrDefault("artifactory_context", System.getenv("ARTIFACTORY_CONTEXT")).toString()
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val artifactoryUsern =
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project.properties.getOrDefault("artifactory_user", System.getenv("ARTIFACTORY_USER")).toString()
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val artifactoryPassword =
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project.properties.getOrDefault("artifactory_password", System.getenv("ARTIFACTORY_PWD")).toString()
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plugins {
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kotlin("jvm") version "1.6.21"
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idea // Generates files that are used by IntelliJ IDEA, thus making it possible to open the project from IDEA
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`java-library` // Apply the java-library plugin for API and implementation separation.
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`maven-publish`
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id("io.gitlab.arturbosch.detekt") version "1.20.0"
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}
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repositories {
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mavenCentral()
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}
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dependencies {
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val kafkaConnectVersion = "3.2.+"
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val junitVersion = "5.8.2"
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compileOnly(platform("org.jetbrains.kotlin:kotlin-bom")) // Align versions of all Kotlin components
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compileOnly("org.jetbrains.kotlin:kotlin-stdlib-jdk8") // Use the Kotlin JDK 8 standard library.
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implementation("org.apache.kafka:connect-api:$kafkaConnectVersion")
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implementation("org.apache.kafka:connect-json:$kafkaConnectVersion")
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implementation("org.apache.kafka:connect-transforms:$kafkaConnectVersion")
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testImplementation("org.jetbrains.kotlin:kotlin-test-junit")
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testImplementation("org.junit.jupiter:junit-jupiter-api:$junitVersion")
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}
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kotlin {
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jvmToolchain {
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(this as JavaToolchainSpec).languageVersion.set(JavaLanguageVersion.of(javaVersion))
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}
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}
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publishing {
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publications {
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create<MavenPublication>("maven") {
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groupId = project.group.toString()
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artifactId = project.name
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version = project.version.toString()
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pom {
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name.set( "phpinncle-toblerone")
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description.set( project.description)
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url.set("https://github.com/phpinnacle/toblerone")
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organization {
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name.set("phpinnacle")
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url.set("https://github.com/phpinnacle")
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}
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issueManagement {
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system.set("GitHub")
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url.set("https://github.com/phpinnacle/toblerone/issues")
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}
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licenses {
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license {
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name.set( "Apache License 2.0")
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url.set("https://github.com/phpinnacle/toblerone/blob/master/LICENSE")
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distribution.set("repo")
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}
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}
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developers {
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developer {
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name.set("phpinnacle")
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}
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}
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scm {
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url.set("https://github.com/phpinnacle/toblerone")
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connection.set("scm:git:git://github.com/phpinnacle/toblerone.git")
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developerConnection.set("scm:git:ssh://[email protected]:phpinnacle/toblerone.git")
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}
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}
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from(components["java"])
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}
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}
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repositories {
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maven {
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name = "ArtifactoryLocal"
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url = uri(artifactoryContext + "/libs-release-local")
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credentials {
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username = artifactoryUsern
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password = artifactoryPassword
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}
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}
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}
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}
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