Added namespace support for the <filter/> element.

org.springframework.integration/src/test/java/org/springframework/integration/filter/FilterContextTests.java

@@ -0,0 +1,58 @@
+/*
+ * 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.integration.filter;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
+import org.junit.Test;
+
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+import org.springframework.integration.channel.MessageChannel;
+import org.springframework.integration.channel.PollableChannel;
+import org.springframework.integration.message.Message;
+import org.springframework.integration.message.StringMessage;
+
+/**
+ * @author Mark Fisher
+ */
+public class FilterContextTests {
+
+	@Test
+	public void methodInvokingFilterRejects() {
+		ApplicationContext context = new ClassPathXmlApplicationContext(
+				"filterContextTests.xml", this.getClass());
+		MessageChannel input = (MessageChannel) context.getBean("input");
+		PollableChannel output = (PollableChannel) context.getBean("output");
+		input.send(new StringMessage("foo"));
+		Message<?> reply = output.receive(0);
+		assertNull(reply);
+	}
+
+	@Test
+	public void methodInvokingFilterAccepts() {
+		ApplicationContext context = new ClassPathXmlApplicationContext(
+				"filterContextTests.xml", this.getClass());
+		MessageChannel input = (MessageChannel) context.getBean("input");
+		PollableChannel output = (PollableChannel) context.getBean("output");
+		input.send(new StringMessage("foobar"));
+		Message<?> reply = output.receive(0);
+		assertEquals("foobar", reply.getPayload());
+	}
+
+}

org.springframework.integration/src/test/java/org/springframework/integration/filter/TestBean.java

@@ -0,0 +1,28 @@
+/*
+ * 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.integration.filter;
+
+/**
+ * @author Mark Fisher
+ */
+public class TestBean {
+
+	public boolean acceptStringWithMoreThanThreeChars(String s) {
+		return s.length() > 3;
+	}
+
+}

org.springframework.integration/src/test/java/org/springframework/integration/filter/filterContextTests.xml

@@ -0,0 +1,25 @@
+<?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/>
+
+	<channel id="input"/>
+
+	<channel id="output">
+		<queue capacity="50"/>
+	</channel>
+
+	<filter input-channel="input"
+			ref="testBean"
+			method="acceptStringWithMoreThanThreeChars"
+			output-channel="output"/>
+
+	<beans:bean id="testBean" class="org.springframework.integration.filter.TestBean"/>
+
+</beans:beans>