build.gradle

buildscript {
	ext.kotlinVersion = '2.1.20'
	ext.isCI = System.getenv('GITHUB_ACTION')
	repositories {
		gradlePluginPortal()
		mavenCentral()
		if (version.endsWith('SNAPSHOT')) {
			maven { url 'https://repo.spring.io/snapshot' }
		}
	}
	dependencies {
		classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"
		classpath "org.jetbrains.kotlin:kotlin-allopen:$kotlinVersion"
	}
}

plugins {
	id 'base'
	id 'idea'
	id 'org.ajoberstar.grgit' version '5.3.0'
	id 'io.spring.nohttp' version '0.0.11'
	id 'io.spring.dependency-management' version '1.1.7' apply false
	id 'io.freefair.aggregate-javadoc' version '8.11'
	id 'net.ltgt.errorprone' version '4.1.0' apply false
}

apply plugin: 'io.spring.nohttp'

description = 'Spring for Apache Kafka'

ext {
	linkHomepage = 'https://github.com/spring-projects/spring-kafka'
	linkCi = 'https://build.spring.io/browse/SK'
	linkIssue = 'https://github.com/spring-projects/spring-kafka/issues'
	linkScmUrl = 'https://github.com/spring-projects/spring-kafka'
	linkScmConnection = 'https://github.com/spring-projects/spring-kafka.git'
	linkScmDevConnection = 'git@github.com:spring-projects/spring-kafka.git'

	javadocLinks = [
		'https://docs.oracle.com/en/java/javase/17/docs/api/',
		'https://jakarta.ee/specifications/platform/11/apidocs/',
		'https://docs.spring.io/spring-framework/docs/current/javadoc-api/'
	] as String[]


	modifiedFiles =
			files()
					.from {
						files(grgit.status().unstaged.modified)
								.filter { f -> f.name.endsWith('.java') || f.name.endsWith('.kt') }
					}
	modifiedFiles.finalizeValueOnRead()

	assertjVersion = '3.27.3'
	awaitilityVersion = '4.2.2'
	hamcrestVersion = '3.0'
	hibernateValidationVersion = '8.0.2.Final'
	jacksonBomVersion = '2.18.3'
	jaywayJsonPathVersion = '2.9.0'
	junit4Version = '4.13.2'
	junitJupiterVersion = '5.12.2'
	kafkaVersion = '4.0.0'
	kotlinCoroutinesVersion = '1.10.2'
	log4jVersion = '2.24.3'
	micrometerDocsVersion = '1.0.4'
	micrometerVersion = '1.15.0-SNAPSHOT'
	micrometerTracingVersion = '1.5.0-SNAPSHOT'
	mockitoVersion = '5.15.2'
	reactorVersion = '2024.0.5'
	scalaVersion = '2.13'
	springBootVersion = '3.3.8' // docs module
	springDataVersion = '2025.1.0-SNAPSHOT'
	springRetryVersion = '2.0.11'
	springVersion = '7.0.0-SNAPSHOT'
	zookeeperVersion = '3.8.4'

	idPrefix = 'kafka'

	javaProjects = subprojects - project(':spring-kafka-bom') - project(':spring-kafka-docs')

}

nohttp {
	source.include '**/src/**'
	source.exclude '**/*.gif', '**/*.ks', '**/.gradle/**'
}

allprojects {
	group = 'org.springframework.kafka'

	apply plugin: 'io.spring.dependency-management'

	repositories {
		mavenCentral()
		maven { url 'https://repo.spring.io/milestone' }
		if (version.endsWith('SNAPSHOT')) {
			maven { url 'https://repo.spring.io/snapshot' }
		}
//		maven { url 'https://repository.apache.org/content/groups/staging/' }
	}

	dependencyManagement {
		resolutionStrategy {
			cacheChangingModulesFor 0, 'seconds'
		}
		applyMavenExclusions = false
		generatedPomCustomization {
			enabled = false
		}

		imports {
			mavenBom "com.fasterxml.jackson:jackson-bom:$jacksonBomVersion"
			mavenBom "org.junit:junit-bom:$junitJupiterVersion"
			mavenBom "io.micrometer:micrometer-bom:$micrometerVersion"
			mavenBom "io.micrometer:micrometer-tracing-bom:$micrometerTracingVersion"
			mavenBom "io.projectreactor:reactor-bom:$reactorVersion"
			mavenBom "org.springframework.data:spring-data-bom:$springDataVersion"
			mavenBom "org.springframework:spring-framework-bom:$springVersion"
		}
	}
}

configure(javaProjects) { subproject ->
	apply plugin: 'java-library'
	apply plugin: 'eclipse'
	apply plugin: 'idea'
	apply plugin: 'checkstyle'
	apply plugin: 'kotlin'
	apply plugin: 'kotlin-spring'
	apply plugin: 'net.ltgt.errorprone'

	apply from: "${rootProject.projectDir}/gradle/publish-maven.gradle"

	java {
		toolchain {
			languageVersion = JavaLanguageVersion.of(23)
		}
		withJavadocJar()
		withSourcesJar()
		registerFeature('optional') {
			usingSourceSet(sourceSets.main)
		}
	}

	tasks.withType(JavaCompile).configureEach {
		sourceCompatibility = JavaVersion.VERSION_17
		options.encoding = 'UTF-8'
		options.errorprone {
			disableAllChecks = true
			if (!name.toLowerCase().contains('test')) {
				option('NullAway:OnlyNullMarked', 'true')
				option('NullAway:CustomContractAnnotations', 'org.springframework.lang.Contract')
				option('NullAway:JSpecifyMode', 'true')
				error('NullAway')
			}
		}
	}

	compileTestKotlin {
		kotlinOptions {
			jvmTarget = JavaVersion.VERSION_17
		}
		compilerOptions {
			allWarningsAsErrors = true
		}
	}


	eclipse.project.natures += 'org.springframework.ide.eclipse.core.springnature'

	// dependencies that are common across all java projects
	dependencies {
		testImplementation 'org.junit.jupiter:junit-jupiter-api'
		testImplementation 'org.junit.jupiter:junit-jupiter-params'
		testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine'
		testRuntimeOnly 'org.junit.platform:junit-platform-launcher'

		// To avoid compiler warnings about @API annotations in JUnit code
		testCompileOnly 'org.apiguardian:apiguardian-api:1.0.0'

		testRuntimeOnly "org.apache.logging.log4j:log4j-slf4j-impl:$log4jVersion"

		testImplementation 'org.jetbrains.kotlin:kotlin-reflect'
		testImplementation 'org.jetbrains.kotlin:kotlin-stdlib-jdk8'
		testImplementation("org.awaitility:awaitility:$awaitilityVersion") {
			exclude group: 'org.hamcrest'
		}
		testImplementation "org.hamcrest:hamcrest-core:$hamcrestVersion"
		optionalApi "org.assertj:assertj-core:$assertjVersion"

		errorprone 'com.uber.nullaway:nullaway:0.12.6'
		errorprone 'com.google.errorprone:error_prone_core:2.36.0'
	}

	// enable all compiler warnings; individual projects may customize further
	[compileJava, compileTestJava]*.options*.compilerArgs = ['-Xlint:all,-options,-processing', '-parameters']

	test {
		testLogging {
			events 'skipped', 'failed'
			showStandardStreams = project.hasProperty('showStandardStreams') ?: false
			showExceptions = true
			showStackTraces = true
			exceptionFormat = 'full'
		}

		maxHeapSize = '1536m'
		useJUnitPlatform()
	}

	checkstyle {
		configDirectory.set(rootProject.file('src/checkstyle'))
		toolVersion = '10.21.1'
	}

	publishing {
		publications {
			mavenJava(MavenPublication) {
				suppressAllPomMetadataWarnings()
				from components.java
			}
		}
	}

	tasks.register('updateCopyrights') {
		onlyIf { !isCI }
		inputs.files(modifiedFiles.filter { f -> f.path.contains(subproject.name) })
		outputs.dir('build/classes')

		doLast {
			def now = Calendar.instance.get(Calendar.YEAR) as String
			inputs.files.each { file ->
				def line
				file.withReader { reader ->
					while (line = reader.readLine()) {
						def matcher = line =~ /Copyright (20\d\d)-?(20\d\d)?/
						if (matcher.count) {
							def beginningYear = matcher[0][1]
							if (now != beginningYear && now != matcher[0][2]) {
								def years = "$beginningYear-$now"
								def sourceCode = file.getText('UTF-8')
								sourceCode = sourceCode.replaceFirst(/20\d\d(-20\d\d)?/, years)
								file.write(sourceCode)
								println "Copyright updated for file: $file"
							}
							break
						}
					}
				}
			}
		}
	}

	compileKotlin.dependsOn updateCopyrights

	jar {
		manifest {
			attributes(
					'Implementation-Version': archiveVersion,
					'Created-By': "JDK ${System.properties['java.version']} (${System.properties['java.specification.vendor']})",
					'Implementation-Title': subproject.name,
					'Implementation-Vendor-Id': subproject.group,
					'Implementation-Vendor': 'Broadcom Inc.',
					'Implementation-URL': linkHomepage,
					'Automatic-Module-Name': subproject.name.replace('-', '.')  // for Jigsaw
			)
		}

		from("${rootProject.projectDir}/src/dist") {
			include 'notice.txt'
			into 'META-INF'
			expand(copyright: new Date().format('yyyy'), version: project.version)
		}
		from("${rootProject.projectDir}") {
			include 'LICENSE.txt'
			into 'META-INF'
		}
	}

	tasks.withType(Javadoc) {
		options.addBooleanOption('Xdoclint:syntax', true) // only check syntax with doclint
		options.addBooleanOption('Werror', true) // fail build on Javadoc warnings
	}

}

project ('spring-kafka') {
	description = 'Spring Kafka Support'

	dependencies {
		api 'org.springframework:spring-context'
		api 'org.springframework:spring-messaging'
		api 'org.springframework:spring-tx'
		api ("org.springframework.retry:spring-retry:$springRetryVersion") {
			exclude group: 'org.springframework'
		}
		api "org.apache.kafka:kafka-clients:$kafkaVersion"
		api 'io.micrometer:micrometer-observation'
		optionalApi "org.apache.kafka:kafka-streams:$kafkaVersion"
		optionalApi "org.jetbrains.kotlinx:kotlinx-coroutines-reactor:$kotlinCoroutinesVersion"
		optionalApi 'com.fasterxml.jackson.core:jackson-core'
		optionalApi 'com.fasterxml.jackson.core:jackson-databind'
		optionalApi 'com.fasterxml.jackson.datatype:jackson-datatype-jdk8'
		optionalApi 'com.fasterxml.jackson.datatype:jackson-datatype-jsr310'
		optionalApi 'com.fasterxml.jackson.datatype:jackson-datatype-joda'
		optionalApi ('com.fasterxml.jackson.module:jackson-module-kotlin') {
			exclude group: 'org.jetbrains.kotlin'
		}

		// Spring Data projection message binding support
		optionalApi ('org.springframework.data:spring-data-commons') {
			exclude group: 'org.springframework'
			exclude group: 'io.micrometer'
		}
		optionalApi "com.jayway.jsonpath:json-path:$jaywayJsonPathVersion"

		optionalApi 'io.projectreactor:reactor-core'
		optionalApi 'io.projectreactor.kafka:reactor-kafka'
		optionalApi 'io.micrometer:micrometer-core'
		optionalApi 'io.micrometer:micrometer-tracing'

		testImplementation project (':spring-kafka-test')
		testImplementation 'io.projectreactor:reactor-test'
		testImplementation "org.mockito:mockito-junit-jupiter:$mockitoVersion"
		testImplementation "org.hibernate.validator:hibernate-validator:$hibernateValidationVersion"
		testImplementation ('io.micrometer:micrometer-tracing-integration-test') {
			exclude group: 'org.mockito'
		}
	}
}

project('spring-kafka-bom') {
	description = 'Spring for Apache Kafka (Bill of Materials)'

	apply plugin: 'java-platform'
	apply from: "${rootDir}/gradle/publish-maven.gradle"

	dependencies {
		constraints {
			javaProjects.sort { "$it.name" }.each {
				api it
			}
		}
	}

	publishing {
		publications {
			mavenJava(MavenPublication) {
				from components.javaPlatform
			}
		}
	}
}

project ('spring-kafka-test') {
	description = 'Spring Kafka Test Support'

	dependencies {
		api "org.apache.logging.log4j:log4j-slf4j-impl:$log4jVersion"
		api 'org.springframework:spring-context'
		api 'org.springframework:spring-test'
		api "org.springframework.retry:spring-retry:$springRetryVersion"

		api "org.apache.kafka:kafka-clients:$kafkaVersion:test"
		api "org.apache.kafka:kafka-server:$kafkaVersion"
		api "org.apache.kafka:kafka-test-common-runtime:$kafkaVersion"
		api "org.apache.kafka:kafka-metadata:$kafkaVersion"
		api "org.apache.kafka:kafka-server-common:$kafkaVersion"
		api "org.apache.kafka:kafka-server-common:$kafkaVersion:test"
		api "org.apache.kafka:kafka-streams-test-utils:$kafkaVersion"
		api ("org.apache.kafka:kafka_$scalaVersion:$kafkaVersion") {
			exclude group: 'commons-logging'
		}
		api ("org.apache.kafka:kafka_$scalaVersion:$kafkaVersion:test") {
			exclude group: 'commons-logging'
		}
		api 'org.junit.jupiter:junit-jupiter-api'
		api 'org.junit.platform:junit-platform-launcher'
		optionalApi "org.hamcrest:hamcrest-core:$hamcrestVersion"
		optionalApi "org.mockito:mockito-core:$mockitoVersion"
		optionalApi ("junit:junit:$junit4Version") {
			exclude group: 'org.hamcrest', module: 'hamcrest-core'
		}
		optionalApi "org.apache.logging.log4j:log4j-core:$log4jVersion"
	}
}

configurations {
	micrometerDocs
}

dependencies {
	micrometerDocs "io.micrometer:micrometer-docs-generator:$micrometerDocsVersion"
}

def observationInputDir = file('spring-kafka/src/main/java/org/springframework/kafka/support/micrometer').absolutePath
def generatedDocsDir = file('build/docs/generated').absolutePath

tasks.register('generateObservabilityDocs', JavaExec) {
	mainClass = 'io.micrometer.docs.DocsGeneratorCommand'
	inputs.dir(observationInputDir)
	outputs.dir(generatedDocsDir)
	classpath configurations.micrometerDocs
	args observationInputDir, /.+/, generatedDocsDir
}

tasks.register('filterMetricsDocsContent', Copy) {
	dependsOn generateObservabilityDocs
	from generatedDocsDir
	include '_*.adoc'
	into generatedDocsDir
	rename { filename -> filename.replace '_', '' }
	filter { line -> line.replaceAll('org.springframework.kafka.support.micrometer.', '').replaceAll('^Fully qualified n', 'N') }
}

dependencies {
	javaProjects.each {
		javadoc it
	}
}

javadoc {
	title = "${rootProject.description} ${version} API"
	options {
		encoding = 'UTF-8'
		memberLevel = JavadocMemberLevel.PROTECTED
		author = true
		header = project.description
		use = true
		overview = 'src/api/overview.html'
		splitIndex = true
		links(project.ext.javadocLinks)
		addBooleanOption('Xdoclint:syntax', true) // only check syntax with doclint
	}

	destinationDir = file('build/api')
	classpath = files().from { files(javaProjects.collect { it.sourceSets.main.compileClasspath }) }
}

tasks.register('api') {
	group = 'Documentation'
	description = 'Generates aggregated Javadoc API documentation.'
	dependsOn javadoc
}

tasks.register('docsZip', Zip) {
	group = 'Distribution'
	archiveClassifier = 'docs'
	description = "Builds -${archiveClassifier} archive containing api and reference " +
			"for deployment at static.spring.io/spring-kafka/docs."

	from('src/dist') {
		include 'changelog.txt'
	}

	from(javadoc) {
		into 'api'
	}
}

tasks.register('distZip', Zip) {
	dependsOn 'docsZip'
	group = 'Distribution'
	archiveClassifier = 'dist'
	description = "Builds -${archiveClassifier} archive, containing all jars and docs, " +
			"suitable for community download page."

	ext.baseDir = "${project.name}-${project.version}"

	from('src/dist') {
		include 'readme.txt'
		include 'notice.txt'
		into "${baseDir}"
	}

	from("$project.rootDir") {
		include 'LICENSE.txt'
		into "${baseDir}"
	}

	from(zipTree(docsZip.archiveFile)) {
		into "${baseDir}/docs"
	}

	javaProjects.each { subproject ->
		into ("${baseDir}/libs") {
			from subproject.jar
			from subproject.sourcesJar
			from subproject.javadocJar
		}
	}

	from(project(':spring-kafka-bom').generatePomFileForMavenJavaPublication) {
		into "${baseDir}/libs"
		rename 'pom-default.xml', "spring-kafka-bom-${project.version}.xml"
	}

}

tasks.register('dist') {
	dependsOn assemble
	group = 'Distribution'
	description = 'Builds -dist, -docs distribution archives.'
}

apply from: "${rootProject.projectDir}/gradle/publish-maven.gradle"

publishing {
	publications {
		mavenJava(MavenPublication) {
			artifact docsZip
			artifact distZip
		}
	}
}