/*
* Copyright 2013 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.yarn.integration.config;
import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.parsing.BeanComponentDefinition;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.support.BeanDefinitionReaderUtils;
import org.springframework.beans.factory.xml.AbstractSingleBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.integration.channel.DirectChannel;
import org.springframework.integration.channel.QueueChannel;
import org.springframework.integration.config.ConsumerEndpointFactoryBean;
import org.springframework.integration.ip.tcp.TcpOutboundGateway;
import org.springframework.integration.ip.tcp.connection.TcpNetClientConnectionFactory;
import org.springframework.util.StringUtils;
import org.springframework.yarn.YarnSystemConstants;
import org.springframework.yarn.config.YarnNamespaceUtils;
import org.springframework.yarn.integration.IntegrationAppmasterServiceClientFactoryBean;
import org.springframework.yarn.integration.ip.mind.MindRpcSerializer;
import org.w3c.dom.Element;
/**
* Simple namespace parser for <yarn-int:amservice-client>.
*
* @author Janne Valkealahti
*
*/
public class IntegrationAmServiceClientParser extends AbstractSingleBeanDefinitionParser {
@Override
protected Class<?> getBeanClass(Element element) {
return IntegrationAppmasterServiceClientFactoryBean.class;
}
@Override
protected void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
// we create default spring int configuration if
// both channels are not explicitly referenced.
boolean hasResponseChannelAttribute = element.hasAttribute("response-channel");
boolean hasRequestChannelAttribute = element.hasAttribute("request-channel");
if(!hasResponseChannelAttribute && !hasRequestChannelAttribute) {
BeanDefinitionBuilder defBuilder = BeanDefinitionBuilder.genericBeanDefinition(DirectChannel.class);
AbstractBeanDefinition beanDef = defBuilder.getBeanDefinition();
String reqChannelBeanName = BeanDefinitionReaderUtils.generateBeanName(beanDef, parserContext.getRegistry());
parserContext.registerBeanComponent(new BeanComponentDefinition(beanDef, reqChannelBeanName));
builder.addPropertyReference("requestChannel", reqChannelBeanName);
defBuilder = BeanDefinitionBuilder.genericBeanDefinition(QueueChannel.class);
beanDef = defBuilder.getBeanDefinition();
String repChannelBeanName = BeanDefinitionReaderUtils.generateBeanName(beanDef, parserContext.getRegistry());
parserContext.registerBeanComponent(new BeanComponentDefinition(beanDef, repChannelBeanName));
builder.addPropertyReference("responseChannel", repChannelBeanName);
defBuilder = BeanDefinitionBuilder.genericBeanDefinition(MindRpcSerializer.class);
beanDef = defBuilder.getBeanDefinition();
String serializerBeanName = BeanDefinitionReaderUtils.generateBeanName(beanDef, parserContext.getRegistry());
parserContext.registerBeanComponent(new BeanComponentDefinition(beanDef, serializerBeanName));
defBuilder = BeanDefinitionBuilder.genericBeanDefinition(TcpNetClientConnectionFactory.class);
String host = element.hasAttribute("host") ? element.getAttribute("host") : "localhost";
String port = element.hasAttribute("port") ? element.getAttribute("port") : "0";
defBuilder.addConstructorArgValue(host);
defBuilder.addConstructorArgValue(port);
defBuilder.addPropertyReference("serializer", serializerBeanName);
defBuilder.addPropertyReference("deserializer", serializerBeanName);
beanDef = defBuilder.getBeanDefinition();
String conFactoryBeanName = BeanDefinitionReaderUtils.generateBeanName(beanDef, parserContext.getRegistry());
parserContext.registerBeanComponent(new BeanComponentDefinition(beanDef, conFactoryBeanName));
defBuilder = BeanDefinitionBuilder.genericBeanDefinition(TcpOutboundGateway.class);
defBuilder.addPropertyReference("connectionFactory", conFactoryBeanName);
defBuilder.addPropertyReference("outputChannel", reqChannelBeanName);
defBuilder.addPropertyReference("replyChannel", repChannelBeanName);
beanDef = defBuilder.getBeanDefinition();
String gatewayBeanName = BeanDefinitionReaderUtils.generateBeanName(beanDef, parserContext.getRegistry());
parserContext.registerBeanComponent(new BeanComponentDefinition(beanDef, gatewayBeanName));
defBuilder = BeanDefinitionBuilder.genericBeanDefinition(ConsumerEndpointFactoryBean.class);
defBuilder.addPropertyReference("handler", gatewayBeanName);
defBuilder.addPropertyValue("inputChannelName", reqChannelBeanName);
beanDef = defBuilder.getBeanDefinition();
String consumerBeanName = BeanDefinitionReaderUtils.generateBeanName(beanDef, parserContext.getRegistry());
parserContext.registerBeanComponent(new BeanComponentDefinition(beanDef, consumerBeanName));
} else if (hasResponseChannelAttribute && hasRequestChannelAttribute) {
// both references given
YarnNamespaceUtils.setReferenceIfAttributeDefined(builder, element, "request-channel");
YarnNamespaceUtils.setReferenceIfAttributeDefined(builder, element, "response-channel");
} else {
parserContext.getReaderContext().error("Both request-channel and response-channel " +
"needs to either exist together or omitted completely.", element);
}
YarnNamespaceUtils.setValueIfAttributeDefined(builder, element, "service-impl");
YarnNamespaceUtils.setReferenceIfAttributeDefined(builder, element, "object-mapper");
}
@Override
protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
throws BeanDefinitionStoreException {
String name = super.resolveId(element, definition, parserContext);
if (!StringUtils.hasText(name)) {
name = YarnSystemConstants.DEFAULT_ID_AMSERVICE_CLIENT;
}
return name;
}
}