| /* |
| * 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; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.apache.avalon.framework.configuration.Configurable; |
| import org.apache.avalon.framework.configuration.Configuration; |
| import org.apache.avalon.framework.configuration.ConfigurationException; |
| import org.apache.avalon.framework.thread.ThreadSafe; |
| |
| /** |
| * Builds a generic container node. |
| * |
| * @version $Id$ |
| */ |
| public class CategoryNodeBuilder extends AbstractParentProcessingNodeBuilder |
| implements Configurable, ThreadSafe { |
| |
| // Prefix used for registering as a TreeBuilder attribute |
| private static String PREFIX = CategoryNodeBuilder.class.getName() + "/"; |
| |
| protected String name; |
| |
| /** |
| * The category name is the value of the "category-name" child, or if not |
| * present, the name of the configuration element. |
| */ |
| public void configure(Configuration config) throws ConfigurationException { |
| super.configure(config); |
| this.name = config.getChild("category-name").getValue(config.getAttribute("name")); |
| } |
| |
| /** This builder has no parameters -- return <code>false</code> */ |
| protected boolean hasParameters() { |
| return false; |
| } |
| |
| public ProcessingNode buildNode(Configuration config) throws Exception { |
| |
| CategoryNode node = new CategoryNode(null); |
| this.treeBuilder.setupNode(node, config); |
| |
| // Get all children and associate them to their name |
| Map category = new HashMap(); |
| |
| List children = buildChildNodesList(config); |
| Iterator iter = children.iterator(); |
| while(iter.hasNext()) { |
| NamedProcessingNode child = (NamedProcessingNode)iter.next(); |
| category.put(child.getName(), child); |
| } |
| |
| node.setCategory(this.name, category); |
| |
| // Register node to allow lookup by other nodes |
| if ( !this.treeBuilder.registerNode(PREFIX + this.name, node) ) { |
| throw new ConfigurationException("Only one <map:" + this.name + |
| "> is allowed in a sitemap. Another one is declared at " + |
| config.getLocation()); |
| } |
| |
| return node; |
| } |
| |
| public static CategoryNode getCategoryNode(TreeBuilder builder, String categoryName) { |
| return (CategoryNode)builder.getRegisteredNode(PREFIX + categoryName); |
| } |
| |
| public static ProcessingNode getNamedNode(TreeBuilder builder, String categoryName, String nodeName) |
| throws Exception { |
| CategoryNode category = getCategoryNode(builder, categoryName); |
| |
| return category.getNodeByName(nodeName); |
| } |
| } |