/*
* Copyright (c) 2002-2012 Alibaba Group Holding Limited.
* All rights reserved.
*
* 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 com.alibaba.citrus.service.pipeline.impl.valve;
import static com.alibaba.citrus.util.Assert.*;
import com.alibaba.citrus.service.pipeline.Pipeline;
import com.alibaba.citrus.service.pipeline.PipelineContext;
import com.alibaba.citrus.service.pipeline.support.AbstractValve;
import com.alibaba.citrus.service.pipeline.support.AbstractValveDefinitionParser;
import com.alibaba.citrus.util.ToStringBuilder;
import org.springframework.beans.factory.support.BeanDefinitionBuilder;
import org.springframework.beans.factory.xml.ParserContext;
import org.w3c.dom.Element;
/**
* 用来执行一个子pipeline。
*
* @author Michael Zhou
*/
public class SubPipelineValve extends AbstractValve {
private Pipeline subPipeline;
public Pipeline getSubPipeline() {
return subPipeline;
}
public void setSubPipeline(Pipeline subPipeline) {
this.subPipeline = subPipeline;
}
@Override
protected void init() throws Exception {
assertNotNull(subPipeline, "no sub-pipeline");
}
public void invoke(PipelineContext pipelineContext) throws Exception {
subPipeline.newInvocation(pipelineContext).invoke();
pipelineContext.invokeNext();
}
@Override
public String toString() {
return new ToStringBuilder().append("SubPipelineValve").start("{", "}").append(subPipeline).end().toString();
}
public static class DefinitionParser extends AbstractValveDefinitionParser<SubPipelineValve> {
@Override
protected final void doParse(Element element, ParserContext parserContext, BeanDefinitionBuilder builder) {
builder.addPropertyValue("subPipeline", parsePipeline(element, null, parserContext, "ref"));
}
}
}