/*
* Copyright 2002-2016 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.xml;
import java.util.List;
import org.w3c.dom.Element;
import org.springframework.beans.factory.config.BeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.ManagedList;
import org.springframework.beans.factory.support.RootBeanDefinition;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.integration.filter.ExpressionEvaluatingSelector;
import org.springframework.integration.router.RecipientListRouter;
import org.springframework.integration.router.RecipientListRouter.Recipient;
import org.springframework.util.StringUtils;
import org.springframework.util.xml.DomUtils;
/**
* Parser for the <recipient-list-router/> element.
*
* @author Oleg Zhurakousky
* @author Mark Fisher
* @since 1.0.3
*/
public class RecipientListRouterParser extends AbstractRouterParser {
@Override
protected BeanDefinition doParseRouter(Element element, ParserContext parserContext) {
BeanDefinitionBuilder recipientListRouterBuilder =
BeanDefinitionBuilder.genericBeanDefinition(RecipientListRouter.class);
List<Element> childElements = DomUtils.getChildElementsByTagName(element, "recipient");
ManagedList<BeanDefinition> recipientList = new ManagedList<BeanDefinition>();
for (Element childElement : childElements) {
BeanDefinitionBuilder recipientBuilder = BeanDefinitionBuilder.genericBeanDefinition(Recipient.class);
recipientBuilder.addConstructorArgReference(childElement.getAttribute("channel"));
String expression = childElement.getAttribute("selector-expression");
if (StringUtils.hasText(expression)) {
BeanDefinition selectorDef = new RootBeanDefinition(ExpressionEvaluatingSelector.class);
selectorDef.getConstructorArgumentValues().addGenericArgumentValue(expression);
String selectorBeanName = parserContext.getReaderContext().registerWithGeneratedName(selectorDef);
recipientBuilder.addConstructorArgReference(selectorBeanName);
}
recipientList.add(recipientBuilder.getBeanDefinition());
}
if (recipientList.size() > 0) {
recipientListRouterBuilder.addPropertyValue("recipients", recipientList);
}
return recipientListRouterBuilder.getBeanDefinition();
}
}