|
Java example source code file (ParserPool.java)
The ParserPool.java Java example source code/* * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.xml.internal.messaging.saaj.util; import org.xml.sax.SAXException; import java.util.concurrent.ArrayBlockingQueue; import java.util.concurrent.BlockingQueue; import javax.xml.parsers.ParserConfigurationException; import javax.xml.parsers.SAXParser; import javax.xml.parsers.SAXParserFactory; import org.xml.sax.SAXNotRecognizedException; import org.xml.sax.SAXNotSupportedException; /** * Pool of SAXParser objects */ public class ParserPool { private final BlockingQueue queue; private SAXParserFactory factory; private int capacity; public ParserPool(int capacity) { this.capacity = capacity; queue = new ArrayBlockingQueue(capacity); //factory = SAXParserFactory.newInstance(); factory = new com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl(); factory.setNamespaceAware(true); for (int i=0; i < capacity; i++) { try { queue.put(factory.newSAXParser()); } catch (InterruptedException ex) { Thread.currentThread().interrupt(); throw new RuntimeException(ex); } catch (ParserConfigurationException ex) { throw new RuntimeException(ex); } catch (SAXException ex) { throw new RuntimeException(ex); } } } public SAXParser get() throws ParserConfigurationException, SAXException { try { return (SAXParser) queue.take(); } catch (InterruptedException ex) { throw new SAXException(ex); } } public void put(SAXParser parser) { queue.offer(parser); } public void returnParser(SAXParser saxParser) { saxParser.reset(); resetSaxParser(saxParser); put(saxParser); } /** * SAAJ Issue 46 :https://saaj.dev.java.net/issues/show_bug.cgi?id=46 * Xerces does not provide a way to reset the SymbolTable * So we are trying to reset it using the proprietary code below. * Temporary Until the bug : https://jaxp.dev.java.net/issues/show_bug.cgi?id=59 * is fixed. * @param parser the parser from the pool whose Symbol Table needs to be reset. */ private void resetSaxParser(SAXParser parser) { try { //Object obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table"); com.sun.org.apache.xerces.internal.util.SymbolTable table = new com.sun.org.apache.xerces.internal.util.SymbolTable(); parser.setProperty("http://apache.org/xml/properties/internal/symbol-table", table); //obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table"); } catch (SAXNotRecognizedException ex) { //nothing to do } catch (SAXNotSupportedException ex) { //nothing to do } } } Other Java examples (source code examples)Here is a short list of links related to this Java ParserPool.java source code file: |
... this post is sponsored by my books ... | |
#1 New Release! |
FP Best Seller |
Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.
A percentage of advertising revenue from
pages under the /java/jwarehouse
URI on this website is
paid back to open source projects.