Added hello world sample.

spring-integration-samples/src/main/java/org/springframework/integration/samples/helloworld/HelloService.java

@@ -0,0 +1,28 @@
+/*
+ * 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.samples.helloworld;
+
+/**
+ * @author Mark Fisher
+ */
+public class HelloService {
+
+	public String sayHello(String name) {
+		return "Hello " + name;
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/helloworld/HelloWorldDemo.java

@@ -0,0 +1,43 @@
+/*
+ * 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.samples.helloworld;
+
+import org.springframework.context.support.AbstractApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import org.springframework.integration.channel.ChannelRegistry;
+import org.springframework.integration.channel.MessageChannel;
+import org.springframework.integration.config.MessageBusParser;
+import org.springframework.integration.message.StringMessage;
+
+/**
+ * Demonstrates a basic message endpoint. 
+ * 
+ * @author Mark Fisher
+ */
+public class HelloWorldDemo {
+
+	public static void main(String[] args) {
+		AbstractApplicationContext context = new ClassPathXmlApplicationContext("helloWorldDemo.xml", HelloWorldDemo.class);
+		context.start();
+		ChannelRegistry channelRegistry = (ChannelRegistry) context.getBean(MessageBusParser.MESSAGE_BUS_BEAN_NAME);
+		MessageChannel inputChannel = channelRegistry.lookupChannel("inputChannel");
+		MessageChannel outputChannel = channelRegistry.lookupChannel("outputChannel");
+		inputChannel.send(new StringMessage(1, "World"));
+		System.out.println(outputChannel.receive().getPayload());
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/helloworld/helloWorldDemo.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans:beans xmlns="http://www.springframework.org/schema/integration"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:beans="http://www.springframework.org/schema/beans"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans
+			http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
+			http://www.springframework.org/schema/integration
+			http://www.springframework.org/schema/integration/spring-integration-1.0.xsd">
+
+	<message-bus auto-create-channels="true"/>
+
+	<endpoint input-channel="inputChannel"
+	          default-output-channel="outputChannel"
+	          handler-ref="helloService"
+	          handler-method="sayHello"/>
+
+	<beans:bean id="helloService" class="org.springframework.integration.samples.helloworld.HelloService"/>
+
+</beans:beans>