| /* |
| * Copyright 1999-2004 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.Map; |
| |
| import org.apache.cocoon.ProcessingException; |
| import org.apache.cocoon.environment.Environment; |
| |
| /** |
| * A generic container node that just invokes its children. |
| * |
| * @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a> |
| * @version CVS $Id: CategoryNode.java,v 1.3 2004/03/05 13:02:51 bdelacretaz Exp $ |
| */ |
| |
| public final class CategoryNode extends AbstractParentProcessingNode { |
| |
| /** The name of this category */ |
| private String categoryName; |
| |
| /** The Map of named nodes in this category */ |
| private Map nodes; |
| |
| public void setCategory(String categoryName, Map nodes) { |
| this.categoryName = categoryName; |
| this.nodes = (nodes != null) ? nodes : new HashMap(0); |
| } |
| |
| public final boolean invoke(Environment env, InvokeContext context) throws Exception { |
| String msg = "Cannot invoke " + this.categoryName + " at " + getLocation(); |
| throw new ProcessingException(msg); |
| } |
| |
| public final ProcessingNode getNodeByName(String name) throws Exception { |
| ProcessingNode node = (ProcessingNode)nodes.get(name); |
| if (node == null) { |
| String msg = "Unknown " + this.categoryName + " named '" + name + "' at " + getLocation(); |
| throw new ProcessingException(msg); |
| } |
| |
| return node; |
| } |
| |
| public final boolean invokeByName(String name, Environment env, InvokeContext context) |
| throws Exception { |
| |
| return getNodeByName(name).invoke(env, context); |
| } |
| } |