| /* |
| * 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 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. |
| * |
| * @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a> |
| * @version CVS $Id: ContainerNodeBuilder.java,v 1.2 2004/03/05 13:02:51 bdelacretaz Exp $ |
| */ |
| |
| public class ContainerNodeBuilder extends AbstractParentProcessingNodeBuilder implements ThreadSafe { |
| |
| /** This builder has no parameters -- return <code>false</code> */ |
| protected boolean hasParameters() { |
| return false; |
| } |
| |
| public ProcessingNode buildNode(Configuration config) throws Exception { |
| |
| ContainerNode node = new ContainerNode(); |
| setupNode(node, config); |
| |
| return node; |
| } |
| |
| protected void setupNode(ContainerNode node, Configuration config)throws Exception { |
| |
| this.treeBuilder.setupNode(node, config); |
| |
| ProcessingNode[] children = buildChildNodes(config); |
| if (children.length == 0) { |
| String msg = "There must be at least one child at " + config.getLocation(); |
| throw new ConfigurationException(msg); |
| } |
| |
| node.setChildren(children); |
| } |
| } |