| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * 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 com.sun.org.apache.xml.internal.security.utils; |
| |
| import com.sun.org.apache.xpath.internal.CachedXPathAPI; |
| import org.w3c.dom.Document; |
| |
| /** |
| * @author Raul Benito |
| */ |
| public class CachedXPathAPIHolder { |
| |
| static ThreadLocal local=new ThreadLocal(); |
| static ThreadLocal localDoc=new ThreadLocal(); |
| |
| /** |
| * Sets the doc for the xpath transformation. Resets the cache if needed |
| * @param doc |
| */ |
| public static void setDoc(Document doc) { |
| if (localDoc.get()!=doc) { |
| CachedXPathAPI cx=(CachedXPathAPI)local.get(); |
| if (cx==null) { |
| cx=new CachedXPathAPI(); |
| local.set(cx); |
| localDoc.set(doc); |
| return; |
| } |
| //Different docs reset. |
| cx.getXPathContext().reset(); |
| localDoc.set(doc); |
| } |
| } |
| |
| /** |
| * @return the cachexpathapi for this thread |
| */ |
| public static CachedXPathAPI getCachedXPathAPI() { |
| CachedXPathAPI cx=(CachedXPathAPI)local.get(); |
| if (cx==null) { |
| cx=new CachedXPathAPI(); |
| local.set(cx); |
| localDoc.set(null); |
| } |
| return cx; |
| } |
| } |