1 /*
2 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
3 *
4 * This software is open source.
5 * See the bottom of this file for the licence.
6 */
7
8 package org.dom4j.tree;
9
10 import junit.textui.TestRunner;
11
12 import org.dom4j.AbstractTestCase;
13 import org.dom4j.Namespace;
14
15 /***
16 * A test harness to test the performance of the NamespaceCache
17 *
18 * @author <a href="mailto:bfinnell@users.sourceforge.net">Brett Finnell </a>
19 */
20 public class NamespaceCacheTest extends AbstractTestCase {
21 private static final int THREADCOUNT = 50;
22
23 private static final int ITERATIONCOUNT = 10000;
24
25 public static void main(String[] args) {
26 TestRunner.run(NamespaceCacheTest.class);
27 }
28
29 // Test case(s)
30 // -------------------------------------------------------------------------
31 public void testGetSameNamespaceSingleThread() {
32 long start = System.currentTimeMillis();
33 SameNSTest test = new SameNSTest();
34 test.run();
35
36 long end = System.currentTimeMillis();
37 System.out.println("Same NS Single took " + (end - start) + " ms");
38 }
39
40 public void testGetSameNamespaceMultiThread() throws Exception {
41 long start = System.currentTimeMillis();
42 runMultiThreadedTest(new SameNSTest());
43
44 long end = System.currentTimeMillis();
45 System.out.println("Different NS Single took " + (end - start) + " ms");
46 }
47
48 public void testGetNewNamespaceSingleThread() {
49 long start = System.currentTimeMillis();
50 DifferentNSTest test = new DifferentNSTest();
51 test.run();
52
53 long end = System.currentTimeMillis();
54 System.out.println("Same NS Multi took " + (end - start) + " ms");
55 }
56
57 public void testGetNewNamespaceMultiThread() throws Exception {
58 long start = System.currentTimeMillis();
59 runMultiThreadedTest(new DifferentNSTest());
60
61 long end = System.currentTimeMillis();
62 System.out.println("Different NS Multi took " + (end - start) + " ms");
63 }
64
65 private void runMultiThreadedTest(Runnable test) throws Exception {
66 // Make the threads
67 Thread[] threads = new Thread[THREADCOUNT];
68
69 for (int i = 0; i < THREADCOUNT; i++) {
70 threads[i] = new Thread(new SameNSTest());
71 }
72
73 // Start the threads
74 for (int j = 0; j < THREADCOUNT; j++) {
75 threads[j].start();
76 }
77
78 // Join with the threads
79 for (int k = 0; k < THREADCOUNT; k++) {
80 threads[k].join();
81 }
82 }
83
84 private class SameNSTest implements Runnable {
85 public void run() {
86 NamespaceCache cache = new NamespaceCache();
87
88 for (int i = 0; i < ITERATIONCOUNT; i++) {
89 Namespace ns = cache.get("prefix", "uri");
90 }
91 }
92 }
93
94 private class DifferentNSTest implements Runnable {
95 public void run() {
96 NamespaceCache cache = new NamespaceCache();
97
98 for (int i = 0; i < ITERATIONCOUNT; i++) {
99 Namespace ns = cache.get("prefix", Integer.toString(i));
100 }
101 }
102 }
103 }
104
105 /*
106 * Redistribution and use of this software and associated documentation
107 * ("Software"), with or without modification, are permitted provided that the
108 * following conditions are met:
109 *
110 * 1. Redistributions of source code must retain copyright statements and
111 * notices. Redistributions must also contain a copy of this document.
112 *
113 * 2. Redistributions in binary form must reproduce the above copyright notice,
114 * this list of conditions and the following disclaimer in the documentation
115 * and/or other materials provided with the distribution.
116 *
117 * 3. The name "DOM4J" must not be used to endorse or promote products derived
118 * from this Software without prior written permission of MetaStuff, Ltd. For
119 * written permission, please contact dom4j-info@metastuff.com.
120 *
121 * 4. Products derived from this Software may not be called "DOM4J" nor may
122 * "DOM4J" appear in their names without prior written permission of MetaStuff,
123 * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
124 *
125 * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
126 *
127 * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
128 * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
129 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
130 * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
131 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
132 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
133 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
134 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
135 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
136 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
137 * POSSIBILITY OF SUCH DAMAGE.
138 *
139 * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
140 */