OPEN - issue BATCH-911: Consolidate Samples

http://jira.springframework.org/browse/BATCH-911

Added support for listeners that implement the interface, along with support for class attribute in listener tag.

spring-batch-core/src/test/java/org/springframework/batch/core/listener/JobExecutionListenerAdapterTests.java

@@ -21,6 +21,7 @@ import static org.junit.Assert.assertTrue;
 import org.junit.Before;
 import org.junit.Test;
 import org.springframework.batch.core.JobExecution;
+import org.springframework.batch.core.JobExecutionListener;
 import org.springframework.batch.core.annotation.AfterJob;
 import org.springframework.batch.core.annotation.BeforeJob;
 
@@ -32,12 +33,15 @@ public class JobExecutionListenerAdapterTests {
 
 	private TestClass testClass;
 	private AnnotatedTestClass annotatedTestClass;
+	private InterfaceTestClass interfaceTestClass;
 	private JobExecution jobExecution = new JobExecution(11L);
 	
+	
 	@Before
 	public void setUp(){
 		testClass = new TestClass();
 		annotatedTestClass = new AnnotatedTestClass();
+		interfaceTestClass = new InterfaceTestClass();
 	}
 	
 	@Test
@@ -90,6 +94,16 @@ public class JobExecutionListenerAdapterTests {
 		assertTrue(annotatedTestClass.afterJobCalled);
 	}
 	
+	@Test
+	public void testWithInterface() throws Exception{
+		JobExecutionListenerAdapter adapter = new JobExecutionListenerAdapter(interfaceTestClass);
+		adapter.afterPropertiesSet();
+		adapter.beforeJob(jobExecution);
+		adapter.afterJob(jobExecution);
+		assertTrue(annotatedTestClass.beforeJobCalled);
+		assertTrue(annotatedTestClass.afterJobCalled);
+	}
+	
 	private class TestClass{
 		
 		boolean beforeJobCalled = false;
@@ -116,4 +130,9 @@ public class JobExecutionListenerAdapterTests {
 			super.afterJobCalled = true;
 		}
 	}
+	
+	private class InterfaceTestClass extends TestClass implements JobExecutionListener {
+		
+	}
+	
 }

spring-batch-core/src/test/java/org/springframework/batch/core/listener/JobExecutionListnerFactoryBeanTests.java

@@ -0,0 +1,84 @@
+/*
+ * Copyright 2002-2008 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.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.batch.core.listener;
+
+import static org.junit.Assert.*;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.springframework.batch.core.JobExecution;
+import org.springframework.batch.core.JobExecutionListener;
+import org.springframework.batch.core.annotation.AfterJob;
+import org.springframework.batch.core.annotation.BeforeJob;
+
+/**
+ * @author Lucas Ward
+ *
+ */
+public class JobExecutionListnerFactoryBeanTests {
+
+	JobExecutionListenerFactoryBean factoryBean;
+	
+	@Before
+	public void setUp(){
+		factoryBean = new JobExecutionListenerFactoryBean();
+	}
+	
+	@Test
+	public void testWithInterface() throws Exception{
+		JobListenerWithInterface delegate = new JobListenerWithInterface();
+		factoryBean.setDelegate(delegate);
+		assertEquals(delegate,factoryBean.getObject());
+	}
+	
+	@Test
+	public void testWithAnnotations() throws Exception{
+		AnnotatedTestClass delegate = new AnnotatedTestClass();
+		factoryBean.setDelegate(delegate);
+		JobExecutionListener listener = (JobExecutionListener) factoryBean.getObject();
+		JobExecution jobExecution = new JobExecution(11L);
+		listener.beforeJob(jobExecution);
+		listener.afterJob(jobExecution);
+		assertTrue(delegate.beforeJobCalled);
+		assertTrue(delegate.afterJobCalled);
+	}
+	
+	private class JobListenerWithInterface implements JobExecutionListener{
+
+		public void afterJob(JobExecution jobExecution) {
+		}
+
+		public void beforeJob(JobExecution jobExecution) {
+		}
+		
+	}
+	
+	private class AnnotatedTestClass {
+		
+		boolean beforeJobCalled = false;
+		boolean afterJobCalled = false;
+		
+		@BeforeJob
+		public void before(){
+			beforeJobCalled = true;
+		}
+		
+		@AfterJob
+		public void after(){
+			afterJobCalled = true;
+		}
+	}
+}