| /* |
| * Copyright 1999-2005 The Apache Software Foundation. |
| * |
| * 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.apache.cocoon.components.treeprocessor.sitemap; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| 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.pipeline.ProcessingPipeline; |
| import org.apache.cocoon.components.treeprocessor.AbstractParentProcessingNodeBuilder; |
| import org.apache.cocoon.components.treeprocessor.ProcessingNode; |
| import org.apache.cocoon.components.treeprocessor.ProcessingNodeBuilder; |
| |
| /** |
| * Builds a <map:pipeline> |
| * |
| * @version $Id$ |
| */ |
| 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 { |
| String type = this.treeBuilder.getTypeForStatement(config, ProcessingPipeline.ROLE); |
| PipelineNode node = new PipelineNode(type); |
| |
| 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 status = handler.getStatusCode(); |
| |
| switch(status) { |
| 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; |
| } |
| } |