Added namespace support for the <filter/> element.

org.springframework.integration/src/main/java/org/springframework/integration/config/FilterParser.java

@@ -0,0 +1,40 @@
+/*
+ * 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.config;
+
+import org.springframework.integration.endpoint.MessageEndpoint;
+import org.springframework.integration.filter.FilterEndpoint;
+import org.springframework.integration.filter.MethodInvokingSelector;
+
+/**
+ * Parser for the <filter/> element.
+ * 
+ * @author Mark Fisher
+ */
+public class FilterParser extends AbstractEndpointParser {
+
+	@Override
+	protected Class<? extends MessageEndpoint> getEndpointClass() {
+		return FilterEndpoint.class;
+	}
+
+	@Override
+	protected Class<?> getMethodInvokingAdapterClass() {
+		return MethodInvokingSelector.class;
+	}
+
+}

org.springframework.integration/src/main/java/org/springframework/integration/config/IntegrationNamespaceHandler.java

@@ -36,6 +36,7 @@ public class IntegrationNamespaceHandler extends NamespaceHandlerSupport {
 		registerBeanDefinitionParser("publish-subscribe-channel", new PublishSubscribeChannelParser());
 		registerBeanDefinitionParser("service-activator", new ServiceActivatorParser());
 		registerBeanDefinitionParser("transformer", new TransformerParser());
+		registerBeanDefinitionParser("filter", new FilterParser());
 		registerBeanDefinitionParser("router", new RouterParser());
 		registerBeanDefinitionParser("splitter", new SplitterParser());
 		registerBeanDefinitionParser("aggregator", new AggregatorParser());

org.springframework.integration/src/main/java/org/springframework/integration/config/spring-integration-1.0.xsd

@@ -319,6 +319,14 @@
 		</xsd:annotation>
 	</xsd:element>
 
+	<xsd:element name="filter" type="inputOutputEndpointType">
+		<xsd:annotation>
+			<xsd:documentation>
+	Defines a Filter.
+			</xsd:documentation>
+		</xsd:annotation>
+	</xsd:element>
+
 	<xsd:element name="router">
 		<xsd:annotation>
 			<xsd:documentation>