Added namespace support for creating a MessageSelectorChain (INT-227).

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

@@ -70,6 +70,7 @@ public class IntegrationNamespaceHandler extends NamespaceHandlerSupport {
 		registerBeanDefinitionParser("gateway", new GatewayParser());
 		registerBeanDefinitionParser("handler", new HandlerParser());
 		registerBeanDefinitionParser("handler-chain", new HandlerParser());
+		registerBeanDefinitionParser("selector-chain", new SelectorChainParser());
 		registerBeanDefinitionParser("router", new RouterParser());
 		registerBeanDefinitionParser("splitter", new SplitterParser());
 		registerBeanDefinitionParser("aggregator", new AggregatorParser());

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

@@ -0,0 +1,54 @@
+/*
+ * 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.w3c.dom.Element;
+import org.w3c.dom.Node;
+import org.w3c.dom.NodeList;
+
+import org.springframework.beans.factory.config.RuntimeBeanReference;
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.beans.factory.support.ManagedList;
+import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
+import org.springframework.integration.message.selector.MessageSelectorChain;
+
+/**
+ * Parser for the <selector-chain/> element.
+ * 
+ * @author Mark Fisher
+ */
+public class SelectorChainParser extends AbstractSingleBeanDefinitionParser {
+
+	@Override
+	protected Class<?> getBeanClass(Element element) {
+		return MessageSelectorChain.class;
+	}
+
+	@SuppressWarnings("unchecked")
+	public void doParse(Element element, BeanDefinitionBuilder builder) {
+		ManagedList selectors = new ManagedList();
+		NodeList childNodes = element.getChildNodes();
+		for (int i = 0; i < childNodes.getLength(); i++) {
+			Node child = childNodes.item(i);
+			if (child.getNodeType() == Node.ELEMENT_NODE && "selector".equals(child.getLocalName())) {
+				selectors.add(new RuntimeBeanReference(((Element) child).getAttribute("ref")));
+			}
+		}
+		builder.addPropertyValue("selectors", selectors);
+	}
+
+}

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

@@ -255,7 +255,7 @@
 		<xsd:complexType>
 			<xsd:annotation>
 				<xsd:documentation>
-	Defines a handler.
+	Defines a MessageHandler.
 				</xsd:documentation>
 			</xsd:annotation>
 			<xsd:attribute name="id" type="xsd:ID"/>
@@ -264,6 +264,31 @@
 		</xsd:complexType>
 	</xsd:element>
 
+	<xsd:element name="selector-chain">
+		<xsd:complexType>
+			<xsd:annotation>
+				<xsd:documentation>
+	Defines a MessageSelector chain.
+				</xsd:documentation>
+			</xsd:annotation>
+			<xsd:sequence>
+				<xsd:element ref="selector" minOccurs="1" maxOccurs="unbounded"/>
+			</xsd:sequence>
+			<xsd:attribute name="id" type="xsd:ID" use="required"/>
+		</xsd:complexType>
+	</xsd:element>
+
+	<xsd:element name="selector">
+		<xsd:complexType>
+			<xsd:annotation>
+				<xsd:documentation>
+	Provides a MessageSelector reference.
+				</xsd:documentation>
+			</xsd:annotation>
+			<xsd:attribute name="ref" type="xsd:string" use="required"/>
+		</xsd:complexType>
+	</xsd:element>
+
 	<xsd:element name="dispatcher-policy">
 		<xsd:complexType>
 			<xsd:annotation>