/*
============================================================================
The Apache Software License, Version 1.1
============================================================================
Copyright (C) 1999-2003 The Apache Software Foundation. All rights reserved.
Redistribution and use in source and binary forms, with or without modifica-
tion, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. The end-user documentation included with the redistribution, if any, must
include the following acknowledgment: "This product includes software
developed by the Apache Software Foundation (http://www.apache.org/)."
Alternately, this acknowledgment may appear in the software itself, if
and wherever such third-party acknowledgments normally appear.
4. The names "Apache Cocoon" and "Apache Software Foundation" must not be
used to endorse or promote products derived from this software without
prior written permission. For written permission, please contact
apache@apache.org.
5. Products derived from this software may not be called "Apache", nor may
"Apache" appear in their name, without prior written permission of the
Apache Software Foundation.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
APACHE SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLU-
DING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
This software consists of voluntary contributions made by many individuals
on behalf of the Apache Software Foundation and was originally created by
Stefano Mazzocchi <stefano@apache.org>. For more information on the Apache
Software Foundation, please see <http://www.apache.org/>.
*/
package org.apache.cocoon.components.treeprocessor.sitemap;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNodeBuilder;
import org.apache.cocoon.components.treeprocessor.ProcessingNode;
import org.apache.cocoon.components.treeprocessor.ProcessingNodeBuilder;
import java.util.*;
/**
* Builds a <map:pipeline>
* @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a>
* @author <a href="mailto:gianugo@apache.org">Gianugo Rabellino</a>
* @version CVS $Id: PipelineNodeBuilder.java,v 1.2 2003/04/01 21:25:09 sylvain Exp $
*/
public class PipelineNodeBuilder
extends AbstractParentProcessingNodeBuilder
implements ThreadSafe {
/** This builder can have parameters -- return <code>true</code> */
protected boolean hasParameters() {
return true;
}
public ProcessingNode buildNode(Configuration config)
throws Exception {
PipelineNode node = new PipelineNode( config );
this.treeBuilder.setupNode(node, config);
node.setInternalOnly(config.getAttributeAsBoolean("internal-only", false));
// Main (with no "type" attribute) error handler : new in Cocoon 2.1, must have a generator
ProcessingNode mainHandler = null;
// 404 & 500 error handlers as in Cocoon 2.0.x, have an implicit generator
ProcessingNode error404Handler = null;
ProcessingNode error500Handler = null;
Configuration[] childConfigs = config.getChildren();
List children = new ArrayList();
for (int i = 0; i < childConfigs.length; i++) {
Configuration childConfig = childConfigs[i];
if (isChild(childConfig)) {
ProcessingNodeBuilder builder = this.treeBuilder.createNodeBuilder(childConfig);
if (builder instanceof HandleErrorsNodeBuilder) {
// Error handler : check type
HandleErrorsNode handler = (HandleErrorsNode)builder.buildNode(childConfig);
int type = handler.getStatusCode();
switch(type) {
case -1: // main handler (needs generator)
if (mainHandler != null) {
throw new ConfigurationException("Duplicate <handle-errors> at " + handler.getLocation());
} else if (error500Handler != null || error404Handler != null) {
throw new ConfigurationException("Cannot mix <handle-errors> with and without 'type' attribute at " +
handler.getLocation());
} else {
mainHandler = handler;
}
break;
case 404:
if (error404Handler != null) {
throw new ConfigurationException("Duplicate <handle-errors type='404' at " + handler.getLocation());
} else if(mainHandler != null) {
throw new ConfigurationException("Cannot mix <handle-errors> with and without 'type' attribute at " +
handler.getLocation());
} else {
error404Handler = handler;
}
break;
case 500:
if (error500Handler != null) {
throw new ConfigurationException("Duplicate <handle-errors type='500' at " + handler.getLocation());
} else if (mainHandler != null) {
throw new ConfigurationException("Cannot mix <handle-errors> with and without 'type' attribute at " +
handler.getLocation());
} else {
error500Handler = handler;
}
break;
default:
throw new ConfigurationException("Unknown handle-errors type (" + type + ") at " + handler.getLocation());
}
} else {
// Regular builder
children.add(builder.buildNode(childConfig));
}
}
}
node.setChildren(toNodeArray(children));
node.set404Handler(error404Handler);
// Set either main or error500 handler as only one can exist
node.set500Handler(error500Handler == null ? mainHandler : error500Handler);
return node;
}
}