cocoon-pipeline-impl/cocoon-pipeline-impl-1.0.0-RC1/src/main/java/org/apache/cocoon/core/container/spring/pipeline/PipelineComponentInfoFactoryBean.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.cocoon.core.container.spring.pipeline;

import java.util.Map;

import org.apache.cocoon.components.pipeline.impl.PipelineComponentInfo;
import org.springframework.beans.BeansException;
import org.springframework.beans.factory.BeanFactory;
import org.springframework.beans.factory.BeanFactoryAware;
import org.springframework.beans.factory.FactoryBean;
import org.springframework.beans.factory.HierarchicalBeanFactory;

/**
 * This spring factory bean adds the processor component info to the bean factory.
 *
 * @since 2.2
 * @version $Id: ProcessorComponentInfoFactoryBean.java 448473 2006-09-21 06:22:51Z crossley $
 */
public class PipelineComponentInfoFactoryBean
    implements FactoryBean, BeanFactoryAware {

    /** The bean factory. */
    protected BeanFactory beanFactory;

    protected Map data;

    protected PipelineComponentInfo info;

    /**
     * @see org.springframework.beans.factory.BeanFactoryAware#setBeanFactory(org.springframework.beans.factory.BeanFactory)
     */
    public void setBeanFactory(BeanFactory factory) throws BeansException {
        this.beanFactory = factory;
    }

    protected void init()
    throws Exception {
        PipelineComponentInfo parent = null;
        if ( this.beanFactory instanceof HierarchicalBeanFactory ) {
            BeanFactory parentFactory = ((HierarchicalBeanFactory)this.beanFactory).getParentBeanFactory();
            if ( parentFactory != null && parentFactory.containsBean(PipelineComponentInfo.ROLE) ) {
                parent = (PipelineComponentInfo)parentFactory.getBean(PipelineComponentInfo.ROLE);
            }
        }
        this.info = new PipelineComponentInfo(parent);
        if ( this.data != null ) {
            info.setData(data);
        }
    }

    /**
     * @see org.springframework.beans.factory.FactoryBean#getObject()
     */
    public Object getObject() throws Exception {
        return this.info;
    }

    /**
     * @see org.springframework.beans.factory.FactoryBean#getObjectType()
     */
    public Class getObjectType() {
        return PipelineComponentInfo.class;
    }

    /**
     * @see org.springframework.beans.factory.FactoryBean#isSingleton()
     */
    public boolean isSingleton() {
        return true;
    }

    public Map getData() {
        return data;
    }

    public void setData(Map data) {
        this.data = data;
    }
}