User can establish taskNameReslover via configurer vs SimpleTaskAutoConfiguration.

resolves #801

spring-cloud-task-core/src/main/java/org/springframework/cloud/task/configuration/DefaultTaskConfigurer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2022 the original author or authors.
+ * Copyright 2015-2023 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.
@@ -24,10 +24,12 @@ import org.apache.commons.logging.LogFactory;
 
 import org.springframework.batch.support.transaction.ResourcelessTransactionManager;
 import org.springframework.cloud.task.repository.TaskExplorer;
+import org.springframework.cloud.task.repository.TaskNameResolver;
 import org.springframework.cloud.task.repository.TaskRepository;
 import org.springframework.cloud.task.repository.dao.JdbcTaskExecutionDao;
 import org.springframework.cloud.task.repository.dao.MapTaskExecutionDao;
 import org.springframework.cloud.task.repository.support.SimpleTaskExplorer;
+import org.springframework.cloud.task.repository.support.SimpleTaskNameResolver;
 import org.springframework.cloud.task.repository.support.SimpleTaskRepository;
 import org.springframework.cloud.task.repository.support.TaskExecutionDaoFactoryBean;
 import org.springframework.context.ApplicationContext;
@@ -129,6 +131,11 @@ public class DefaultTaskConfigurer implements TaskConfigurer {
 		return this.dataSource;
 	}
 
+	@Override
+	public TaskNameResolver getTaskNameResolver() {
+		return new SimpleTaskNameResolver();
+	}
+
 	@Override
 	public PlatformTransactionManager getTransactionManager() {
 		if (this.transactionManager == null) {

spring-cloud-task-core/src/main/java/org/springframework/cloud/task/configuration/SimpleTaskAutoConfiguration.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2022 the original author or authors.
+ * Copyright 2015-2023 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.
@@ -34,7 +34,6 @@ import org.springframework.boot.sql.init.dependency.DatabaseInitializationDepend
 import org.springframework.cloud.task.repository.TaskExplorer;
 import org.springframework.cloud.task.repository.TaskNameResolver;
 import org.springframework.cloud.task.repository.TaskRepository;
-import org.springframework.cloud.task.repository.support.SimpleTaskNameResolver;
 import org.springframework.cloud.task.repository.support.SimpleTaskRepository;
 import org.springframework.cloud.task.repository.support.TaskRepositoryInitializer;
 import org.springframework.context.ConfigurableApplicationContext;
@@ -84,6 +83,8 @@ public class SimpleTaskAutoConfiguration {
 
 	private TaskExplorer taskExplorer;
 
+	private TaskNameResolver taskNameResolver;
+
 	@Bean
 	public SimpleTaskRepository taskRepository() {
 		return (SimpleTaskRepository) this.taskRepository;
@@ -102,7 +103,7 @@ public class SimpleTaskAutoConfiguration {
 
 	@Bean
 	public TaskNameResolver taskNameResolver() {
-		return new SimpleTaskNameResolver();
+		return taskNameResolver;
 	}
 
 	@Bean
@@ -138,6 +139,7 @@ public class SimpleTaskAutoConfiguration {
 		this.taskRepository = taskConfigurer.getTaskRepository();
 		this.platformTransactionManager = taskConfigurer.getTransactionManager();
 		this.taskExplorer = taskConfigurer.getTaskExplorer();
+		this.taskNameResolver = taskConfigurer.getTaskNameResolver();
 		this.initialized = true;
 	}
 

spring-cloud-task-core/src/main/java/org/springframework/cloud/task/configuration/TaskConfigurer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2019 the original author or authors.
+ * Copyright 2015-2023 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.
@@ -19,6 +19,7 @@ package org.springframework.cloud.task.configuration;
 import javax.sql.DataSource;
 
 import org.springframework.cloud.task.repository.TaskExplorer;
+import org.springframework.cloud.task.repository.TaskNameResolver;
 import org.springframework.cloud.task.repository.TaskRepository;
 import org.springframework.transaction.PlatformTransactionManager;
 
@@ -58,4 +59,10 @@ public interface TaskConfigurer {
 	 */
 	DataSource getTaskDataSource();
 
+	/**
+	 * Create a {@link TaskNameResolver} for use with the task application.
+	 * @return A <code>TaskNameResolver</code>
+	 */
+	TaskNameResolver getTaskNameResolver();
+
 }

spring-cloud-task-core/src/main/java/org/springframework/cloud/task/repository/support/SimpleTaskNameResolver.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2019 the original author or authors.
+ * Copyright 2015-2023 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.
@@ -25,7 +25,7 @@ import org.springframework.util.StringUtils;
 
 /**
  * Simple implementation of the {@link TaskNameResolver} interface. Names the task based
- * on the following order of precidence:
+ * on the following order of precedence:
  * <ol>
  * <li>A configured property <code>spring.cloud.task.name</code></li>
  * <li>The {@link ApplicationContext}'s id.</li>

spring-cloud-task-core/src/test/java/org/springframework/cloud/task/SimpleTaskAutoConfigurationTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2022 the original author or authors.
+ * Copyright 2015-2023 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.
@@ -40,6 +40,7 @@ import org.springframework.cloud.task.configuration.SimpleTaskAutoConfiguration;
 import org.springframework.cloud.task.configuration.SingleTaskConfiguration;
 import org.springframework.cloud.task.configuration.TaskConfigurer;
 import org.springframework.cloud.task.repository.TaskExplorer;
+import org.springframework.cloud.task.repository.TaskNameResolver;
 import org.springframework.cloud.task.repository.TaskRepository;
 import org.springframework.cloud.task.repository.support.SimpleTaskRepository;
 import org.springframework.context.ApplicationContextException;
@@ -131,6 +132,20 @@ public class SimpleTaskAutoConfigurationTests {
 		verifyExceptionThrownDefaultExecutable(ApplicationContextException.class, applicationContextRunner);
 	}
 
+	@Test
+	public void testTaskNameResolver() {
+		ApplicationContextRunner applicationContextRunner = new ApplicationContextRunner()
+				.withConfiguration(AutoConfigurations.of(EmbeddedDataSourceConfiguration.class,
+						PropertyPlaceholderAutoConfiguration.class, SimpleTaskAutoConfiguration.class,
+						SingleTaskConfiguration.class))
+				.withUserConfiguration(TaskLifecycleListenerConfiguration.class)
+				.withPropertyValues("spring.cloud.task.name=myTestName");
+		applicationContextRunner.run((context) -> {
+			TaskNameResolver taskNameResolver = context.getBean(TaskNameResolver.class);
+			assertThat(taskNameResolver.getTaskName()).isEqualTo("myTestName");
+		});
+	}
+
 	@Test
 	public void testMultipleConfigurers() {
 		ApplicationContextRunner applicationContextRunner = new ApplicationContextRunner()

spring-cloud-task-core/src/test/java/org/springframework/cloud/task/configuration/DefaultTaskConfigurerTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-2022 the original author or authors.
+ * Copyright 2017-2023 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.
@@ -90,6 +90,14 @@ public class DefaultTaskConfigurerTests {
 		assertThat(defaultTaskConfigurer.getTaskExplorer()).isNotNull();
 	}
 
+	@Test
+	public void taskNameResolverTest() {
+		DefaultTaskConfigurer defaultTaskConfigurer = new DefaultTaskConfigurer(this.dataSource);
+		assertThat(defaultTaskConfigurer.getTaskNameResolver()).isNotNull();
+		defaultTaskConfigurer = new DefaultTaskConfigurer();
+		assertThat(defaultTaskConfigurer.getTaskNameResolver()).isNotNull();
+	}
+
 	@Test
 	public void taskRepositoryTest() {
 		DefaultTaskConfigurer defaultTaskConfigurer = new DefaultTaskConfigurer(this.dataSource);