INT-1104 added support for 'expression' on the logging-channel-adapter element

org.springframework.integration/src/test/java/org/springframework/integration/handler/LoggingHandlerTests-context.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans:beans xmlns="http://www.springframework.org/schema/integration"
+	xmlns:beans="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans
+            http://www.springframework.org/schema/beans/spring-beans.xsd
+            http://www.springframework.org/schema/integration
+            http://www.springframework.org/schema/integration/spring-integration.xsd">
+
+	<logging-channel-adapter id="input" expression="payload.name + ':' + payload.age"/>
+
+</beans:beans>

org.springframework.integration/src/test/java/org/springframework/integration/handler/LoggingHandlerTests.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2002-2010 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.handler;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.integration.core.MessageChannel;
+import org.springframework.integration.message.MessageBuilder;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+/**
+ * @author Mark Fisher
+ * @since 2.0
+ */
+@ContextConfiguration
+@RunWith(SpringJUnit4ClassRunner.class)
+public class LoggingHandlerTests {
+
+	@Autowired
+	MessageChannel input;
+
+	@Test
+	public void logWithExpression() {
+		TestBean bean = new TestBean("test", 55);
+		input.send(MessageBuilder.withPayload(bean).setHeader("foo", "bar").build());
+	}
+
+
+	public static class TestBean {
+
+		private final String name;
+
+		private int age;
+
+		public TestBean(String name, int age) {
+			this.name = name;
+			this.age = age;
+		}
+
+		public String getName() {
+			return this.name;
+		}
+
+		public int getAge() {
+			return this.age;
+		}
+	}
+
+}