Thu, 31 Aug 2017 15:18:52 +0800
merge
aoqi@0 | 1 | /* |
aoqi@0 | 2 | * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
aoqi@0 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
aoqi@0 | 4 | * |
aoqi@0 | 5 | * This code is free software; you can redistribute it and/or modify it |
aoqi@0 | 6 | * under the terms of the GNU General Public License version 2 only, as |
aoqi@0 | 7 | * published by the Free Software Foundation. Oracle designates this |
aoqi@0 | 8 | * particular file as subject to the "Classpath" exception as provided |
aoqi@0 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
aoqi@0 | 10 | * |
aoqi@0 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
aoqi@0 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
aoqi@0 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
aoqi@0 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
aoqi@0 | 15 | * accompanied this code). |
aoqi@0 | 16 | * |
aoqi@0 | 17 | * You should have received a copy of the GNU General Public License version |
aoqi@0 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
aoqi@0 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
aoqi@0 | 20 | * |
aoqi@0 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
aoqi@0 | 22 | * or visit www.oracle.com if you need additional information or have any |
aoqi@0 | 23 | * questions. |
aoqi@0 | 24 | */ |
aoqi@0 | 25 | |
aoqi@0 | 26 | package com.sun.xml.internal.messaging.saaj.util; |
aoqi@0 | 27 | |
aoqi@0 | 28 | |
aoqi@0 | 29 | import org.xml.sax.SAXException; |
aoqi@0 | 30 | import java.util.concurrent.ArrayBlockingQueue; |
aoqi@0 | 31 | import java.util.concurrent.BlockingQueue; |
aoqi@0 | 32 | import javax.xml.parsers.ParserConfigurationException; |
aoqi@0 | 33 | import javax.xml.parsers.SAXParser; |
aoqi@0 | 34 | import javax.xml.parsers.SAXParserFactory; |
aoqi@0 | 35 | import org.xml.sax.SAXNotRecognizedException; |
aoqi@0 | 36 | import org.xml.sax.SAXNotSupportedException; |
aoqi@0 | 37 | |
aoqi@0 | 38 | |
aoqi@0 | 39 | /** |
aoqi@0 | 40 | * Pool of SAXParser objects |
aoqi@0 | 41 | */ |
aoqi@0 | 42 | public class ParserPool { |
aoqi@0 | 43 | private final BlockingQueue queue; |
aoqi@0 | 44 | private SAXParserFactory factory; |
aoqi@0 | 45 | private int capacity; |
aoqi@0 | 46 | |
aoqi@0 | 47 | public ParserPool(int capacity) { |
aoqi@0 | 48 | this.capacity = capacity; |
aoqi@0 | 49 | queue = new ArrayBlockingQueue(capacity); |
aoqi@0 | 50 | //factory = SAXParserFactory.newInstance(); |
aoqi@0 | 51 | factory = new com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl(); |
aoqi@0 | 52 | factory.setNamespaceAware(true); |
aoqi@0 | 53 | for (int i=0; i < capacity; i++) { |
aoqi@0 | 54 | try { |
aoqi@0 | 55 | queue.put(factory.newSAXParser()); |
aoqi@0 | 56 | } catch (InterruptedException ex) { |
aoqi@0 | 57 | Thread.currentThread().interrupt(); |
aoqi@0 | 58 | throw new RuntimeException(ex); |
aoqi@0 | 59 | } catch (ParserConfigurationException ex) { |
aoqi@0 | 60 | throw new RuntimeException(ex); |
aoqi@0 | 61 | } catch (SAXException ex) { |
aoqi@0 | 62 | throw new RuntimeException(ex); |
aoqi@0 | 63 | } |
aoqi@0 | 64 | } |
aoqi@0 | 65 | } |
aoqi@0 | 66 | |
aoqi@0 | 67 | public SAXParser get() throws ParserConfigurationException, |
aoqi@0 | 68 | SAXException { |
aoqi@0 | 69 | |
aoqi@0 | 70 | try { |
aoqi@0 | 71 | return (SAXParser) queue.take(); |
aoqi@0 | 72 | } catch (InterruptedException ex) { |
aoqi@0 | 73 | throw new SAXException(ex); |
aoqi@0 | 74 | } |
aoqi@0 | 75 | |
aoqi@0 | 76 | } |
aoqi@0 | 77 | |
aoqi@0 | 78 | public void put(SAXParser parser) { |
aoqi@0 | 79 | queue.offer(parser); |
aoqi@0 | 80 | } |
aoqi@0 | 81 | |
aoqi@0 | 82 | public void returnParser(SAXParser saxParser) { |
aoqi@0 | 83 | saxParser.reset(); |
aoqi@0 | 84 | resetSaxParser(saxParser); |
aoqi@0 | 85 | put(saxParser); |
aoqi@0 | 86 | } |
aoqi@0 | 87 | |
aoqi@0 | 88 | |
aoqi@0 | 89 | /** |
aoqi@0 | 90 | * SAAJ Issue 46 :https://saaj.dev.java.net/issues/show_bug.cgi?id=46 |
aoqi@0 | 91 | * Xerces does not provide a way to reset the SymbolTable |
aoqi@0 | 92 | * So we are trying to reset it using the proprietary code below. |
aoqi@0 | 93 | * Temporary Until the bug : https://jaxp.dev.java.net/issues/show_bug.cgi?id=59 |
aoqi@0 | 94 | * is fixed. |
aoqi@0 | 95 | * @param parser the parser from the pool whose Symbol Table needs to be reset. |
aoqi@0 | 96 | */ |
aoqi@0 | 97 | private void resetSaxParser(SAXParser parser) { |
aoqi@0 | 98 | try { |
aoqi@0 | 99 | //Object obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table"); |
aoqi@0 | 100 | com.sun.org.apache.xerces.internal.util.SymbolTable table = new com.sun.org.apache.xerces.internal.util.SymbolTable(); |
aoqi@0 | 101 | parser.setProperty("http://apache.org/xml/properties/internal/symbol-table", table); |
aoqi@0 | 102 | //obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table"); |
aoqi@0 | 103 | } catch (SAXNotRecognizedException ex) { |
aoqi@0 | 104 | //nothing to do |
aoqi@0 | 105 | } catch (SAXNotSupportedException ex) { |
aoqi@0 | 106 | //nothing to do |
aoqi@0 | 107 | } |
aoqi@0 | 108 | } |
aoqi@0 | 109 | |
aoqi@0 | 110 | } |