Migrate CTR to Boot 3.3 and Batch 5

* Remove the Batch Configurer and replace with a Configuration
* Update Tests so that they will work with Boot3
* Removed EnableBatchAutoConfiguration no longer needed if using BatchAutoConfiguration
* Removed schema requirements

* Re-enable CTR Module build in main pom.xml

pom.xml

@@ -76,8 +76,7 @@
 		<module>spring-cloud-dataflow-server</module>
 		<module>spring-cloud-dataflow-tasklauncher</module>
 		<module>spring-cloud-dataflow-single-step-batch-job</module>
-<!--		TODO: Boot3x followup -->
-<!--		<module>spring-cloud-dataflow-composed-task-runner</module>-->
+		<module>spring-cloud-dataflow-composed-task-runner</module>
 		<module>spring-cloud-dataflow-test</module>
 		<module>spring-cloud-dataflow-dependencies</module>
 		<module>spring-cloud-dataflow-classic-docs</module>

spring-cloud-dataflow-composed-task-runner/src/main/java/org/springframework/cloud/dataflow/composedtaskrunner/ComposedRunnerJobFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -27,11 +27,12 @@
 import org.springframework.batch.core.JobParametersBuilder;
 import org.springframework.batch.core.JobParametersIncrementer;
 import org.springframework.batch.core.Step;
-import org.springframework.batch.core.configuration.annotation.JobBuilderFactory;
 import org.springframework.batch.core.job.builder.FlowBuilder;
 import org.springframework.batch.core.job.builder.FlowJobBuilder;
+import org.springframework.batch.core.job.builder.JobBuilder;
 import org.springframework.batch.core.job.flow.Flow;
 import org.springframework.batch.core.launch.support.RunIdIncrementer;
+import org.springframework.batch.core.repository.JobRepository;
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cloud.dataflow.composedtaskrunner.properties.ComposedTaskProperties;
@@ -65,7 +66,7 @@ public class ComposedRunnerJobFactory implements FactoryBean<Job> {
 	private TaskExecutor taskExecutor;
 
 	@Autowired
-	private JobBuilderFactory jobBuilderFactory;
+	private JobRepository jobRepository;
 
 	@Autowired
 	private TaskNameResolver taskNameResolver;
@@ -105,9 +106,8 @@ public Job getObject() throws Exception {
 		taskParser.parse().accept(composedRunnerVisitor);
 
 		this.visitorDeque = composedRunnerVisitor.getFlow();
-
-		FlowJobBuilder builder = this.jobBuilderFactory
-				.get(this.taskNameResolver.getTaskName())
+		JobBuilder jobBuilder = new JobBuilder(this.taskNameResolver.getTaskName(), jobRepository);
+		FlowJobBuilder builder = jobBuilder
 				.start(this.flowBuilder
 						.start(createFlow())
 						.end())

spring-cloud-dataflow-composed-task-runner/src/main/java/org/springframework/cloud/dataflow/composedtaskrunner/ComposedTaskRunnerConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2023 the original author or authors.
+ * Copyright 2017-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,104 +16,38 @@
 
 package org.springframework.cloud.dataflow.composedtaskrunner;
 
-import javax.sql.DataSource;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Set;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
 import org.springframework.batch.core.StepExecutionListener;
-import org.springframework.batch.core.configuration.annotation.BatchConfigurer;
-import org.springframework.batch.core.configuration.annotation.EnableBatchProcessing;
-import org.springframework.boot.autoconfigure.batch.BatchProperties;
-import org.springframework.boot.autoconfigure.transaction.TransactionManagerCustomizers;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.cloud.dataflow.composedtaskrunner.properties.ComposedTaskProperties;
-import org.springframework.cloud.dataflow.core.database.support.MultiSchemaTaskExecutionDaoFactoryBean;
-import org.springframework.cloud.dataflow.core.dsl.TaskParser;
 import org.springframework.cloud.task.configuration.EnableTask;
 import org.springframework.cloud.task.listener.TaskExecutionListener;
 import org.springframework.cloud.task.repository.TaskExplorer;
-import org.springframework.cloud.task.repository.support.SimpleTaskExplorer;
-import org.springframework.cloud.task.repository.support.TaskExecutionDaoFactoryBean;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.annotation.Import;
-import org.springframework.core.env.Environment;
 import org.springframework.core.task.TaskExecutor;
 import org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor;
-import org.springframework.util.StringUtils;
 
 /**
  * Configures the Job that will execute the Composed Task Execution.
  *
  * @author Glenn Renfro
  * @author Corneil du Plessis
  */
-@EnableBatchProcessing
 @EnableTask
 @EnableConfigurationProperties(ComposedTaskProperties.class)
 @Configuration
 @Import(org.springframework.cloud.dataflow.composedtaskrunner.StepBeanDefinitionRegistrar.class)
 public class ComposedTaskRunnerConfiguration {
-	private final static Logger logger = LoggerFactory.getLogger(ComposedTaskRunnerConfiguration.class);
 
 	@Bean
 	public TaskExecutionListener taskExecutionListener() {
 		return new ComposedTaskRunnerTaskListener();
 	}
 
 	@Bean
-	public StepExecutionListener composedTaskStepExecutionListener(TaskExplorerContainer taskExplorerContainer) {
-		return new org.springframework.cloud.dataflow.composedtaskrunner.ComposedTaskStepExecutionListener(taskExplorerContainer);
-	}
-
-	@Bean
-	TaskExplorerContainer taskExplorerContainer(TaskExplorer taskExplorer, DataSource dataSource, ComposedTaskProperties properties, Environment env) {
-		Map<String, TaskExplorer> explorers = new HashMap<>();
-		String ctrName = env.getProperty("spring.cloud.task.name");
-		if (!StringUtils.hasText(ctrName)) {
-			throw new IllegalStateException("spring.cloud.task.name property must have a value.");
-		}
-		TaskParser parser = new TaskParser("ctr", properties.getGraph(), false, true);
-		StepBeanDefinitionRegistrar.TaskAppsMapCollector collector = new StepBeanDefinitionRegistrar.TaskAppsMapCollector();
-		parser.parse().accept(collector);
-		Set<String> taskNames = collector.getTaskApps().keySet();
-		logger.debug("taskExplorerContainer:taskNames:{}", taskNames);
-		for (String taskName : taskNames) {
-			addTaskExplorer(dataSource, properties, env, explorers, taskName);
-			String appName = taskName.replace(ctrName + "-", "");
-			addTaskExplorer(dataSource, properties, env, explorers, appName);
-			if(taskName.length() > ctrName.length()) {
-				String shortTaskName = taskName.substring(ctrName.length() + 1);
-				addTaskExplorer(dataSource, properties, env, explorers, shortTaskName);
-			}
-		}
-		return new TaskExplorerContainer(explorers, taskExplorer);
-	}
-
-	private static void addTaskExplorer(
-			DataSource dataSource,
-			ComposedTaskProperties properties,
-			Environment env,
-			Map<String, TaskExplorer> explorers,
-			String taskName
-	) {
-		logger.debug("addTaskExplorer:{}", taskName);
-		String propertyName = String.format("app.%s.spring.cloud.task.tablePrefix", taskName);
-		String prefix = properties.getComposedTaskAppProperties().get(propertyName);
-		if (prefix == null) {
-			prefix = env.getProperty(propertyName);
-		}
-		if (prefix != null) {
-			TaskExecutionDaoFactoryBean factoryBean = new MultiSchemaTaskExecutionDaoFactoryBean(dataSource, prefix);
-			logger.debug("taskExplorerContainer:adding:{}:{}", taskName, prefix);
-			explorers.put(taskName, new SimpleTaskExplorer(factoryBean));
-		} else {
-			logger.warn("Cannot find {} in {} ", propertyName, properties.getComposedTaskAppProperties());
-		}
+	public StepExecutionListener composedTaskStepExecutionListener(TaskExplorer taskExplorer) {
+		return new org.springframework.cloud.dataflow.composedtaskrunner.ComposedTaskStepExecutionListener(taskExplorer);
 	}
 
 	@Bean
@@ -128,25 +62,11 @@ public TaskExecutor taskExecutor(ComposedTaskProperties properties) {
 		taskExecutor.setMaxPoolSize(properties.getSplitThreadMaxPoolSize());
 		taskExecutor.setKeepAliveSeconds(properties.getSplitThreadKeepAliveSeconds());
 		taskExecutor.setAllowCoreThreadTimeOut(
-				properties.isSplitThreadAllowCoreThreadTimeout());
+			properties.isSplitThreadAllowCoreThreadTimeout());
 		taskExecutor.setQueueCapacity(properties.getSplitThreadQueueCapacity());
 		taskExecutor.setWaitForTasksToCompleteOnShutdown(
-				properties.isSplitThreadWaitForTasksToCompleteOnShutdown());
+			properties.isSplitThreadWaitForTasksToCompleteOnShutdown());
 		return taskExecutor;
 	}
 
-	@Bean
-	public BatchConfigurer getComposedBatchConfigurer(
-			BatchProperties properties,
-			DataSource dataSource,
-			TransactionManagerCustomizers transactionManagerCustomizers,
-			ComposedTaskProperties composedTaskProperties
-	) {
-		return new ComposedBatchConfigurer(
-				properties,
-				dataSource,
-				transactionManagerCustomizers,
-				composedTaskProperties
-		);
-	}
 }

spring-cloud-dataflow-composed-task-runner/src/main/java/org/springframework/cloud/dataflow/composedtaskrunner/ComposedTaskRunnerStepFactory.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2021 the original author or authors.
+ * Copyright 2017-2024 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -31,18 +31,21 @@
 
 import org.springframework.batch.core.Step;
 import org.springframework.batch.core.StepExecutionListener;
-import org.springframework.batch.core.configuration.annotation.StepBuilderFactory;
+import org.springframework.batch.core.repository.JobRepository;
+import org.springframework.batch.core.step.builder.StepBuilder;
 import org.springframework.beans.factory.FactoryBean;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.cloud.dataflow.composedtaskrunner.properties.ComposedTaskProperties;
 import org.springframework.cloud.dataflow.core.Base64Utils;
 import org.springframework.cloud.dataflow.rest.support.jackson.Jackson2DataflowModule;
 import org.springframework.cloud.task.configuration.TaskProperties;
+import org.springframework.cloud.task.repository.TaskExplorer;
 import org.springframework.core.env.Environment;
 import org.springframework.hateoas.mediatype.hal.Jackson2HalModule;
 import org.springframework.security.oauth2.client.endpoint.OAuth2AccessTokenResponseClient;
 import org.springframework.security.oauth2.client.endpoint.OAuth2ClientCredentialsGrantRequest;
 import org.springframework.security.oauth2.client.registration.ClientRegistrationRepository;
+import org.springframework.transaction.PlatformTransactionManager;
 import org.springframework.transaction.annotation.Isolation;
 import org.springframework.transaction.interceptor.DefaultTransactionAttribute;
 import org.springframework.transaction.interceptor.TransactionAttribute;
@@ -74,13 +77,16 @@ public class ComposedTaskRunnerStepFactory implements FactoryBean<Step> {
 	private List<String> arguments = new ArrayList<>();
 
 	@Autowired
-	private StepBuilderFactory steps;
+	private JobRepository jobRepository;
+
+	@Autowired
+	private PlatformTransactionManager transactionManager;
 
 	@Autowired
 	private StepExecutionListener composedTaskStepExecutionListener;
 
 	@Autowired
-	private TaskExplorerContainer taskExplorerContainer;
+	private TaskExplorer taskExplorer;
 
 	@Autowired
 	private TaskProperties taskProperties;
@@ -133,7 +139,7 @@ public Step getObject() {
 		TaskLauncherTasklet taskLauncherTasklet = new TaskLauncherTasklet(
 				this.clientRegistrations,
 				this.clientCredentialsTokenResponseClient,
-				this.taskExplorerContainer.get(this.taskNameId),
+				this.taskExplorer,
 				this.composedTaskPropertiesFromEnv,
 				this.taskName,
 				taskProperties,
@@ -168,9 +174,9 @@ public Step getObject() {
 
 		taskLauncherTasklet.setProperties(propertiesToUse);
 		logger.debug("Properties to use {}", propertiesToUse);
-
-		return this.steps.get(this.taskName)
-				.tasklet(taskLauncherTasklet)
+		StepBuilder stepBuilder = new StepBuilder(this.taskName, this.jobRepository);
+		return stepBuilder
+				.tasklet(taskLauncherTasklet, this.transactionManager)
 				.transactionAttribute(getTransactionAttribute())
 				.listener(this.composedTaskStepExecutionListener)
 				.build();