jdk8-mips64-public/jaxws: src/share/jaxws_classes/com/sun/xml/internal/messaging/saaj/util/ParserPool.java@9c07ef4934dd

     1 /*

     2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    26 package com.sun.xml.internal.messaging.saaj.util;

    29 import org.xml.sax.SAXException;

    30 import java.util.concurrent.ArrayBlockingQueue;

    31 import java.util.concurrent.BlockingQueue;

    32 import javax.xml.parsers.ParserConfigurationException;

    33 import javax.xml.parsers.SAXParser;

    34 import javax.xml.parsers.SAXParserFactory;

    35 import org.xml.sax.SAXNotRecognizedException;

    36 import org.xml.sax.SAXNotSupportedException;

    39 /**

    40  * Pool of SAXParser objects

    41  */

    42 public class ParserPool {

    43     private final BlockingQueue queue;

    44     private SAXParserFactory factory;

    45     private int capacity;

    47     public ParserPool(int capacity) {

    48         this.capacity = capacity;

    49         queue = new ArrayBlockingQueue(capacity);

    50         //factory = SAXParserFactory.newInstance();

    51         factory = new com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl();

    52         factory.setNamespaceAware(true);

    53         for (int i=0; i < capacity; i++) {

    54            try {

    55                 queue.put(factory.newSAXParser());

    56             } catch (InterruptedException ex) {

    57                 Thread.currentThread().interrupt();

    58                 throw new RuntimeException(ex);

    59             } catch (ParserConfigurationException ex) {

    60                 throw new RuntimeException(ex);

    61             } catch (SAXException ex) {

    62                 throw new RuntimeException(ex);

    63             }

    64         }

    65     }

    67     public SAXParser get() throws ParserConfigurationException,

    68                 SAXException {

    70         try {

    71             return (SAXParser) queue.take();

    72         } catch (InterruptedException ex) {

    73             throw new SAXException(ex);

    74         }

    76     }

    78     public void put(SAXParser parser) {

    79         queue.offer(parser);

    80     }

    82     public void returnParser(SAXParser saxParser) {

    83         saxParser.reset();

    84         resetSaxParser(saxParser);

    85         put(saxParser);

    86     }

    89     /**

    90      * SAAJ Issue 46 :https://saaj.dev.java.net/issues/show_bug.cgi?id=46

    91      * Xerces does not provide a way to reset the SymbolTable

    92      * So we are trying to reset it using the proprietary code below.

    93      * Temporary Until the bug : https://jaxp.dev.java.net/issues/show_bug.cgi?id=59

    94      * is fixed.

    95      * @param parser the parser from the pool whose Symbol Table needs to be reset.

    96      */

    97      private void resetSaxParser(SAXParser parser) {

    98         try {

    99             //Object obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table");

   100             com.sun.org.apache.xerces.internal.util.SymbolTable table = new com.sun.org.apache.xerces.internal.util.SymbolTable();

   101             parser.setProperty("http://apache.org/xml/properties/internal/symbol-table", table);

   102             //obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table");

   103         } catch (SAXNotRecognizedException ex) {

   104             //nothing to do

   105         } catch (SAXNotSupportedException ex) {

   106             //nothing to do

   107         }

   108     }

   110 }

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