1 /*
2 * Copyright (c) 1997, 2014, 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
28
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;
37
38
39 /**
40 * Pool of SAXParser objects
41 */
42 public class ParserPool {
43 private final BlockingQueue<SAXParser> queue;
44 private SAXParserFactory factory;
45
46 public ParserPool(int capacity) {
47 queue = new ArrayBlockingQueue<SAXParser>(capacity);
48 //factory = SAXParserFactory.newInstance();
49 factory = new com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl();
50 factory.setNamespaceAware(true);
51 for (int i = 0; i < capacity; i++) {
52 try {
53 queue.put(factory.newSAXParser());
54 } catch (InterruptedException ex) {
55 Thread.currentThread().interrupt();
56 throw new RuntimeException(ex);
57 } catch (ParserConfigurationException ex) {
58 throw new RuntimeException(ex);
59 } catch (SAXException ex) {
60 throw new RuntimeException(ex);
61 }
62 }
63 }
64
65 public SAXParser get() throws ParserConfigurationException,
66 SAXException {
67
68 try {
69 return (SAXParser) queue.take();
70 } catch (InterruptedException ex) {
71 throw new SAXException(ex);
72 }
73
74 }
75
76 public boolean put(SAXParser parser) {
77 return queue.offer(parser);
78 }
79
80 public void returnParser(SAXParser saxParser) {
81 saxParser.reset();
82 resetSaxParser(saxParser);
83 put(saxParser);
84 }
85
86
87 /**
88 * SAAJ Issue 46 :https://saaj.dev.java.net/issues/show_bug.cgi?id=46
89 * Xerces does not provide a way to reset the SymbolTable
90 * So we are trying to reset it using the proprietary code below.
91 * Temporary Until the bug : https://jaxp.dev.java.net/issues/show_bug.cgi?id=59
92 * is fixed.
93 * @param parser the parser from the pool whose Symbol Table needs to be reset.
94 */
95 private void resetSaxParser(SAXParser parser) {
96 try {
97 //Object obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table");
98 com.sun.org.apache.xerces.internal.util.SymbolTable table = new com.sun.org.apache.xerces.internal.util.SymbolTable();
99 parser.setProperty("http://apache.org/xml/properties/internal/symbol-table", table);
100 //obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table");
101 } catch (SAXNotRecognizedException ex) {
102 //nothing to do
103 } catch (SAXNotSupportedException ex) {
104 //nothing to do
105 }
106 }
107
108 }
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1 /*
2 * Copyright (c) 1997, 2017, 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
28
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;
37
38
39 /**
40 * Pool of SAXParser objects
41 */
42 public class ParserPool {
43 private final BlockingQueue<SAXParser> queue;
44 private SAXParserFactory factory;
45
46 public ParserPool(int capacity) {
47 queue = new ArrayBlockingQueue<SAXParser>(capacity);
48 factory = SAXParserFactory.newInstance("com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl", SAAJUtil.getSystemClassLoader());
49 factory.setNamespaceAware(true);
50 for (int i = 0; i < capacity; i++) {
51 try {
52 queue.put(factory.newSAXParser());
53 } catch (InterruptedException ex) {
54 Thread.currentThread().interrupt();
55 throw new RuntimeException(ex);
56 } catch (ParserConfigurationException ex) {
57 throw new RuntimeException(ex);
58 } catch (SAXException ex) {
59 throw new RuntimeException(ex);
60 }
61 }
62 }
63
64 public SAXParser get() throws ParserConfigurationException,
65 SAXException {
66
67 try {
68 return (SAXParser) queue.take();
69 } catch (InterruptedException ex) {
70 throw new SAXException(ex);
71 }
72
73 }
74
75 public boolean put(SAXParser parser) {
76 return queue.offer(parser);
77 }
78
79 public void returnParser(SAXParser saxParser) {
80 saxParser.reset();
81 //TODO!! Ask about jaxp issue (https://jaxp.dev.java.net/issues/show_bug.cgi?id=59) multirelease if needed
82 // resetSaxParser(saxParser);
83 put(saxParser);
84 }
85
86
87 /**
88 * SAAJ Issue 46 :https://saaj.dev.java.net/issues/show_bug.cgi?id=46
89 * Xerces does not provide a way to reset the SymbolTable
90 * So we are trying to reset it using the proprietary code below.
91 * Temporary Until the bug : https://jaxp.dev.java.net/issues/show_bug.cgi?id=59
92 * is fixed.
93 * @param parser the parser from the pool whose Symbol Table needs to be reset.
94 */
95 /*private void resetSaxParser(SAXParser parser) {
96 try {
97 //Object obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table");
98 com.sun.org.apache.xerces.internal.util.SymbolTable table = new com.sun.org.apache.xerces.internal.util.SymbolTable();
99 parser.setProperty("http://apache.org/xml/properties/internal/symbol-table", table);
100 //obj = parser.getProperty("http://apache.org/xml/properties/internal/symbol-table");
101 } catch (SAXNotRecognizedException ex) {
102 //nothing to do
103 } catch (SAXNotSupportedException ex) {
104 //nothing to do
105 }
106 }*/
107
108 }
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