INT-669 Added HeaderValueRouter

org.springframework.integration/src/test/java/org/springframework/integration/router/HeaderValueRouterTests.java

@@ -0,0 +1,147 @@
+/*
+ * Copyright 2002-2009 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.assertNotNull;
+import static org.junit.Assert.assertSame;
+
+import org.junit.Test;
+
+import org.springframework.beans.factory.config.RuntimeBeanReference;
+import org.springframework.beans.factory.support.ManagedMap;
+import org.springframework.beans.factory.support.RootBeanDefinition;
+import org.springframework.context.support.StaticApplicationContext;
+import org.springframework.integration.channel.MapBasedChannelResolver;
+import org.springframework.integration.channel.QueueChannel;
+import org.springframework.integration.core.Message;
+import org.springframework.integration.message.MessageBuilder;
+import org.springframework.integration.message.MessageHandler;
+
+/**
+ * @author Mark Fisher
+ */
+public class HeaderValueRouterTests {
+
+	@Test
+	public void channelAsHeaderValue() {
+		StaticApplicationContext context = new StaticApplicationContext();
+		RootBeanDefinition routerBeanDefinition = new RootBeanDefinition(HeaderValueRouter.class);
+		routerBeanDefinition.getConstructorArgumentValues().addGenericArgumentValue("testHeaderName");
+		routerBeanDefinition.getPropertyValues().addPropertyValue("resolutionRequired", "true");
+		context.registerBeanDefinition("router", routerBeanDefinition);
+		context.refresh();
+		MessageHandler handler = (MessageHandler) context.getBean("router");
+		QueueChannel testChannel = new QueueChannel();
+		Message<?> message = MessageBuilder.withPayload("test").setHeader("testHeaderName", testChannel).build();
+		handler.handleMessage(message);
+		Message<?> result = testChannel.receive(1000);
+		assertNotNull(result);
+		assertSame(message, result);
+	}
+
+	@Test
+	public void resolveChannelNameFromContext() {
+		StaticApplicationContext context = new StaticApplicationContext();
+		RootBeanDefinition routerBeanDefinition = new RootBeanDefinition(HeaderValueRouter.class);
+		routerBeanDefinition.getConstructorArgumentValues().addGenericArgumentValue("testHeaderName");
+		routerBeanDefinition.getPropertyValues().addPropertyValue("resolutionRequired", "true");
+		context.registerBeanDefinition("router", routerBeanDefinition);
+		context.registerBeanDefinition("testChannel", new RootBeanDefinition(QueueChannel.class));
+		context.refresh();
+		MessageHandler handler = (MessageHandler) context.getBean("router");
+		Message<?> message = MessageBuilder.withPayload("test").setHeader("testHeaderName", "testChannel").build();
+		handler.handleMessage(message);
+		QueueChannel channel = (QueueChannel) context.getBean("testChannel");
+		Message<?> result = channel.receive(1000);
+		assertNotNull(result);
+		assertSame(message, result);
+	}
+
+	@Test
+	@SuppressWarnings("unchecked")
+	public void resolveChannelNameFromMap() {
+		StaticApplicationContext context = new StaticApplicationContext();
+		ManagedMap channelMap = new ManagedMap();
+		channelMap.put("testKey", new RuntimeBeanReference("testChannel"));
+		RootBeanDefinition channelResolverBeanDefinition = new RootBeanDefinition(MapBasedChannelResolver.class);
+		channelResolverBeanDefinition.getConstructorArgumentValues().addGenericArgumentValue(channelMap);
+		RootBeanDefinition routerBeanDefinition = new RootBeanDefinition(HeaderValueRouter.class);
+		routerBeanDefinition.getConstructorArgumentValues().addGenericArgumentValue("testHeaderName");
+		routerBeanDefinition.getPropertyValues().addPropertyValue("resolutionRequired", "true");
+		routerBeanDefinition.getPropertyValues().addPropertyValue("channelResolver", new RuntimeBeanReference("resolver"));
+		context.registerBeanDefinition("resolver", channelResolverBeanDefinition);
+		context.registerBeanDefinition("router", routerBeanDefinition);
+		context.registerBeanDefinition("testChannel", new RootBeanDefinition(QueueChannel.class));
+		context.refresh();
+		MessageHandler handler = (MessageHandler) context.getBean("router");
+		Message<?> message = MessageBuilder.withPayload("test").setHeader("testHeaderName", "testKey").build();
+		handler.handleMessage(message);
+		QueueChannel channel = (QueueChannel) context.getBean("testChannel");
+		Message<?> result = channel.receive(1000);
+		assertNotNull(result);
+		assertSame(message, result);
+	}
+
+	@Test
+	public void resolveMultipleChannelsWithStringArray() {
+		StaticApplicationContext context = new StaticApplicationContext();
+		RootBeanDefinition routerBeanDefinition = new RootBeanDefinition(HeaderValueRouter.class);
+		routerBeanDefinition.getConstructorArgumentValues().addGenericArgumentValue("testHeaderName");
+		routerBeanDefinition.getPropertyValues().addPropertyValue("resolutionRequired", "true");
+		context.registerBeanDefinition("router", routerBeanDefinition);
+		context.registerBeanDefinition("channel1", new RootBeanDefinition(QueueChannel.class));
+		context.registerBeanDefinition("channel2", new RootBeanDefinition(QueueChannel.class));
+		context.refresh();
+		MessageHandler handler = (MessageHandler) context.getBean("router");
+		String[] channels = new String[] { "channel1", "channel2" };
+		Message<?> message = MessageBuilder.withPayload("test").setHeader("testHeaderName", channels).build();
+		handler.handleMessage(message);
+		QueueChannel channel1 = (QueueChannel) context.getBean("channel1");
+		QueueChannel channel2 = (QueueChannel) context.getBean("channel2");
+		Message<?> result1 = channel1.receive(1000);
+		Message<?> result2 = channel2.receive(1000);
+		assertNotNull(result1);
+		assertNotNull(result2);
+		assertSame(message, result1);
+		assertSame(message, result2);
+	}
+
+	@Test
+	public void resolveMultipleChannelsWithCommaDelimitedString() {
+		StaticApplicationContext context = new StaticApplicationContext();
+		RootBeanDefinition routerBeanDefinition = new RootBeanDefinition(HeaderValueRouter.class);
+		routerBeanDefinition.getConstructorArgumentValues().addGenericArgumentValue("testHeaderName");
+		routerBeanDefinition.getPropertyValues().addPropertyValue("resolutionRequired", "true");
+		context.registerBeanDefinition("router", routerBeanDefinition);
+		context.registerBeanDefinition("channel1", new RootBeanDefinition(QueueChannel.class));
+		context.registerBeanDefinition("channel2", new RootBeanDefinition(QueueChannel.class));
+		context.refresh();
+		MessageHandler handler = (MessageHandler) context.getBean("router");
+		String channels = "channel1, channel2";
+		Message<?> message = MessageBuilder.withPayload("test").setHeader("testHeaderName", channels).build();
+		handler.handleMessage(message);
+		QueueChannel channel1 = (QueueChannel) context.getBean("channel1");
+		QueueChannel channel2 = (QueueChannel) context.getBean("channel2");
+		Message<?> result1 = channel1.receive(1000);
+		Message<?> result2 = channel2.receive(1000);
+		assertNotNull(result1);
+		assertNotNull(result2);
+		assertSame(message, result1);
+		assertSame(message, result2);
+	}
+
+}