INTSAMPLES-19 Add Filter Example

basic/testing-examples/src/main/java/org/springframework/integration/samples/testing/filter/PetFilter.java

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2002-2011 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.testing.filter;
+
+import org.springframework.integration.annotation.Filter;
+
+/**
+ * @author Gary Russell
+ * @since 2.0.2
+ *
+ */
+public class PetFilter {
+	
+	@Filter
+	public boolean dogsOnly(String input) {
+		return input.toLowerCase().contains("dog");
+	}
+
+}

basic/testing-examples/src/main/resources/META-INF/spring/integration/06-filter/integration-context.xml

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+<?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.xsd
+			http://www.springframework.org/schema/integration
+			http://www.springframework.org/schema/integration/spring-integration.xsd">
+
+	<channel id="inputChannel"/>
+
+	<filter input-channel="inputChannel"
+		output-channel="outputChannel">
+		<beans:bean class="org.springframework.integration.samples.testing.filter.PetFilter"/>
+	</filter>
+	
+	<channel id="outputChannel"/>
+	
+</beans:beans>