Implemented PayloadTypeRouter and added PayloadTypeRouterTests.

spring-integration-core/src/test/java/org/springframework/integration/router/PayloadTypeRouterTests.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright 2002-2007 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.integration.router;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import org.junit.Test;
+
+import org.springframework.integration.channel.MessageChannel;
+import org.springframework.integration.channel.PointToPointChannel;
+import org.springframework.integration.message.GenericMessage;
+import org.springframework.integration.message.Message;
+import org.springframework.integration.message.StringMessage;
+
+/**
+ * @author Mark Fisher
+ */
+public class PayloadTypeRouterTests {
+
+	@Test
+	public void testRoutingByPayloadType() {
+		PointToPointChannel stringChannel = new PointToPointChannel();
+		PointToPointChannel integerChannel = new PointToPointChannel();
+		Map<Class<?>, MessageChannel> channelMappings = new ConcurrentHashMap<Class<?>, MessageChannel>();
+		channelMappings.put(String.class, stringChannel);
+		channelMappings.put(Integer.class, integerChannel);
+		PayloadTypeRouter router = new PayloadTypeRouter();
+		router.setChannelMappings(channelMappings);
+		router.afterPropertiesSet();
+		Message<String> message1 = new StringMessage("test");
+		Message<Integer> message2 = new GenericMessage<Integer>(123);
+		router.handle(message1);
+		router.handle(message2);
+		Message<?> result1 = stringChannel.receive(25);
+		assertNotNull(result1);
+		assertEquals("test", result1.getPayload());
+		Message<?> result2 = integerChannel.receive(25);
+		assertNotNull(result2);
+		assertEquals(123, result2.getPayload());
+	}
+
+	@Test
+	public void testRoutingToDefaultChannelWhenNoTypeMatches() {
+		PointToPointChannel stringChannel = new PointToPointChannel();
+		PointToPointChannel defaultChannel = new PointToPointChannel();
+		Map<Class<?>, MessageChannel> channelMappings = new ConcurrentHashMap<Class<?>, MessageChannel>();
+		channelMappings.put(String.class, stringChannel);
+		PayloadTypeRouter router = new PayloadTypeRouter();
+		router.setChannelMappings(channelMappings);
+		router.setDefaultChannel(defaultChannel);
+		router.afterPropertiesSet();
+		Message<String> message1 = new StringMessage("test");
+		Message<Integer> message2 = new GenericMessage<Integer>(123);
+		router.handle(message1);
+		router.handle(message2);
+		Message<?> result1 = stringChannel.receive(25);
+		assertNotNull(result1);
+		assertEquals("test", result1.getPayload());
+		Message<?> result2 = defaultChannel.receive(25);
+		assertNotNull(result2);
+		assertEquals(123, result2.getPayload());
+	}
+
+}