Package org.apache.cocoon.treeprocessor.sitemap

Source Code of org.apache.cocoon.treeprocessor.sitemap.GenerateNode

/*****************************************************************************
* Copyright (C) The Apache Software Foundation. All rights reserved.        *
* ------------------------------------------------------------------------- *
* This software is published under the terms of the Apache Software License *
* version 1.1, a copy of which has been included  with this distribution in *
* the LICENSE file.                                                         *
*****************************************************************************/

package org.apache.cocoon.treeprocessor.sitemap;

import org.apache.cocoon.components.pipeline.EventPipeline;
import org.apache.cocoon.environment.Environment;
import org.apache.cocoon.sitemap.PatternException;

import org.apache.cocoon.treeprocessor.AbstractProcessingNode;
import org.apache.cocoon.treeprocessor.CategoryNode;
import org.apache.cocoon.treeprocessor.InvokeContext;
import org.apache.cocoon.treeprocessor.MapStackResolver;
import org.apache.cocoon.treeprocessor.ParameterizableProcessingNode;
import org.apache.cocoon.treeprocessor.ProcessingNode;

import java.util.*;

/**
*
* @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a>
* @version CVS $Revision: 1.3 $ $Date: 2002/01/30 14:35:07 $
*/

public class GenerateNode extends AbstractProcessingNode implements ParameterizableProcessingNode {

    private String generatorName;
   
    private MapStackResolver source;
   
    private Map parameters;
   
    private Map views;
   
    /** The category node */
    private CategoryNode viewsNode;

    public GenerateNode(String name, String source) throws PatternException {
        this.generatorName = name;
        this.source = MapStackResolver.getResolver(source);
    }
   
    public void setParameters(Map parameterMap) {
        this.parameters = parameterMap;
    }
   
    public void setViews(Map views) {
        this.views = views;
    }
   
    public final boolean invoke(Environment env, InvokeContext context)
      throws Exception {
       
        List mapStack = context.getMapStack();
       
        context.getEventPipeline().setGenerator(
            this.generatorName,
            source.resolve(mapStack),
            MapStackResolver.buildParameters(this.parameters, mapStack)
        );
       
        // Check view
        if (this.views != null) {
           
            String cocoonView = env.getView();
            if (cocoonView != null) {
           
                // Get view node
                ProcessingNode viewNode = (ProcessingNode)this.views.get(cocoonView);
               
                if (viewNode != null) {
                    if (getLogger().isInfoEnabled()) {
                        getLogger().info("Jumping to view " + cocoonView + " from generator at " + this.getLocation());
                    }
                    return viewNode.invoke(env, context);
                }
            }
        }
       
        // Return false to contine sitemap invocation
        return false;
    }
}
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