AbstractRemotingGatewayParser.java :  » J2EE » spring-ide_2.3.0 » org » springframework » integration » adapter » config » Java Open Source

/*
 * 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.adapter.config;

import org.w3c.dom.Element;

import org.springframework.beans.factory.BeanDefinitionStoreException;
import org.springframework.beans.factory.support.AbstractBeanDefinition;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.AbstractSimpleBeanDefinitionParser;
import org.springframework.beans.factory.xml.ParserContext;
import org.springframework.util.Assert;
import org.springframework.util.StringUtils;

/**
 * Base class for remoting gateway parsers.
 * 
 * @author Mark Fisher
 */
public abstract class AbstractRemotingGatewayParser extends AbstractSimpleBeanDefinitionParser {

  @Override
  protected String resolveId(Element element, AbstractBeanDefinition definition, ParserContext parserContext)
      throws BeanDefinitionStoreException {
    String id = super.resolveId(element, definition, parserContext);
    if (!StringUtils.hasText(id)) {
      id = element.getAttribute("name");
    }
    if (!StringUtils.hasText(id)) {
      id = parserContext.getReaderContext().generateBeanName(definition);
    }
    return id;
  }

  @Override
  protected boolean isEligibleAttribute(String attributeName) {
    return !attributeName.equals("name") && !attributeName.equals("request-channel")
        && !attributeName.equals("reply-channel") && super.isEligibleAttribute(attributeName);
  }

  @Override
  protected final void postProcess(BeanDefinitionBuilder builder, Element element) {
    String requestChannelRef = element.getAttribute("request-channel");
    Assert.hasText(requestChannelRef, "a 'request-channel' reference is required");
    builder.addPropertyReference("requestChannel", requestChannelRef);
    String replyChannel = element.getAttribute("reply-channel");
    if (StringUtils.hasText(replyChannel)) {
      builder.addPropertyReference("replyChannel", replyChannel);
    }
    String autoStartup = element.getAttribute("auto-startup");
    if (StringUtils.hasText(autoStartup)) {
      builder.addPropertyValue("autoStartup", autoStartup);
    }
    this.doPostProcess(builder, element);
  }

  /**
   * Subclasses may add to the bean definition by overriding this method.
   */
  protected void doPostProcess(BeanDefinitionBuilder builder, Element element) {
  }

}