| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.avalon.framework.configuration.Configuration; |
| 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.SimpleSelectorProcessingNode; |
| import org.apache.cocoon.components.treeprocessor.variables.VariableResolver; |
| import org.apache.cocoon.components.treeprocessor.variables.VariableResolverFactory; |
| import org.apache.cocoon.matching.Matcher; |
| import org.apache.cocoon.matching.PreparableMatcher; |
| |
| /** |
| * |
| * @author <a href="mailto:sylvain@apache.org">Sylvain Wallez</a> |
| * @version CVS $Id$ |
| */ |
| |
| public class MatchNodeBuilder extends AbstractParentProcessingNodeBuilder |
| implements ThreadSafe { |
| |
| private static final String SELECTOR_ROLE = Matcher.ROLE + "Selector"; |
| |
| public ProcessingNode buildNode(Configuration config) throws Exception { |
| |
| String pattern = config.getAttribute("pattern", null); |
| String name = config.getAttribute("name", null); |
| |
| String type = this.treeBuilder.getTypeForStatement(config, SELECTOR_ROLE); |
| |
| // Get the type and class for this matcher |
| ComponentsSelector selector = (ComponentsSelector)this.manager.lookup(SELECTOR_ROLE); |
| |
| Class clazz = null; |
| try { |
| // Find matcher class |
| Matcher matcher = (Matcher)selector.select(type); |
| clazz = matcher.getClass(); |
| selector.release(matcher); |
| } finally { |
| this.manager.release(selector); |
| } |
| |
| // PreparableMatcher are only prepared if pattern doesn't need request-time resolution. |
| boolean preparable = |
| PreparableMatcher.class.isAssignableFrom(clazz) && |
| !VariableResolverFactory.needsResolve(pattern); |
| |
| // Instanciate appropriate node |
| SimpleSelectorProcessingNode node; |
| VariableResolver patternResolver = VariableResolverFactory.getResolver(pattern, this.manager); |
| |
| if (preparable) { |
| node = new PreparableMatchNode(type, VariableResolverFactory.unescape(pattern),name); |
| } else { |
| node = new MatchNode(type, patternResolver,name); |
| } |
| |
| this.treeBuilder.setupNode(node, config); |
| |
| // Get all children |
| ProcessingNode[] children = buildChildNodes(config); |
| |
| node.setChildren(children); |
| |
| return node; |
| } |
| } |