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initial performance testing for Entities 

git-svn-id: https://svn.apache.org/repos/asf/jakarta/commons/proper/lang/trunk@137338 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Alex Chaffee 2003-05-24 13:29:44 +00:00
parent e2211f3db6
commit 0766ea1f69
3 changed files with 266 additions and 15 deletions
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97
src/java/org/apache/commons/lang/Entities.java
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@ -53,8 +53,7 @@
*/
package org.apache.commons.lang;
import java.util.HashMap;
import java.util.Map;
import java.util.*;
/**
* <p>Provides HTML and XML entity utilities.</p>
@ -68,7 +67,7 @@ import java.util.Map;
* @author <a href="mailto:alex@purpletech.com">Alexander Day Chaffee</a>
* @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
* @since 2.0
* @version $Id: Entities.java,v 1.5 2003/05/24 04:35:06 alex Exp $
* @version $Id: Entities.java,v 1.6 2003/05/24 13:29:44 alex Exp $
*/
class Entities {
@ -79,11 +78,11 @@ class Entities {
{"gt", "62"}, // > - greater-than
};
static private String[][] apos = {
static String[][] apos = {
{"apos", "39"}, // XML apostrophe
};
static private String[][] iso8859_1 = {
static String[][] iso8859_1 = {
{"nbsp", "160"}, // non-breaking space
{"iexcl", "161"}, //inverted exclamation mark
{"cent", "162"}, //cent sign
@ -385,25 +384,37 @@ class Entities {
static {
HTML40 = new Entities();
HTML40.addEntities(basic);
HTML40.addEntities(iso8859_1);
HTML40.addEntities(html40);
fillWithHtml40Entities(HTML40);
}
static class IntMap {
private Map mapNameToValue = new HashMap();
private Map mapValueToName = new HashMap();
static void fillWithHtml40Entities(Entities entities) {
entities.addEntities(basic);
entities.addEntities(iso8859_1);
entities.addEntities(html40);
}
static interface IntMap {
void add(String name, int value);
String name(int value);
int value(String name);
}
static abstract class MapIntMap implements IntMap {
protected Map mapNameToValue;
protected Map mapValueToName;
public void add(String name, int value) {
mapNameToValue.put(name, new Integer(value));
mapValueToName.put(new Integer(value), name);
}
private String name(int value) {
public String name(int value) {
return (String) mapValueToName.get(new Integer(value));
}
private int value(String name) {
public int value(String name) {
Object value = mapNameToValue.get(name);
if (value == null)
return -1;
@ -411,7 +422,65 @@ class Entities {
}
}
IntMap map = new IntMap();
static class HashIntMap extends MapIntMap {
public HashIntMap() {
mapNameToValue = new HashMap();
mapValueToName = new HashMap();
}
}
static class TreeIntMap extends MapIntMap {
public TreeIntMap() {
mapNameToValue = new TreeMap();
mapValueToName = new TreeMap();
}
}
static class ArrayIntMap implements IntMap {
int growBy = 100;
private int size = 0;
private String[] names = new String[growBy];
private int[] values = new int[growBy];
public void add(String name, int value) {
ensureCapacity(size + 1);
names[size] = name;
values[size] = value;
size++;
}
private void ensureCapacity(int capacity) {
if (capacity > names.length) {
int newSize = Math.max(capacity, size + growBy);
String[] newNames = new String[newSize];
System.arraycopy(names, 0, newNames, 0, size);
names = newNames;
int[] newValues = new int[newSize];
System.arraycopy(values, 0, newValues, 0, size);
values = newValues;
}
}
public String name(int value) {
for (int i = 0; i < size; ++i) {
if (values[i] == value) {
return names[i];
}
}
return null;
}
public int value(String name) {
for (int i = 0; i < size; ++i) {
if (names[i].equals(name)) {
return values[i];
}
}
return -1;
}
}
IntMap map = new HashIntMap();
public void addEntities(String[][] entityArray) {
for (int i = 0; i < entityArray.length; ++i) {

169
src/test/org/apache/commons/lang/EntitiesPerformanceTest.java Normal file
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@ -0,0 +1,169 @@
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2002-2003 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.commons.lang;
import java.io.IOException;
import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;
import junit.textui.TestRunner;
import junit.extensions.RepeatedTest;
public class EntitiesPerformanceTest extends TestCase {
private int COUNT = 200;
private int STRING_LENGTH = 1000;
private static String stringWithUnicode;
private static String stringWithEntities;
private static Entities treeEntities;
private static Entities hashEntities;
private static Entities arrayEntities;
public EntitiesPerformanceTest(String name) {
super(name);
}
public static void main(String[] args) {
TestRunner.run(suite());
}
public static Test suite() {
TestSuite suite = new TestSuite(EntitiesPerformanceTest.class);
// suite.setName("Entities Performance Tests");
// return new RepeatedTest(suite, 1000);
return suite;
}
public void setUp() {
if (stringWithUnicode == null) {
StringBuffer buf = new StringBuffer(STRING_LENGTH);
for (int i = 0; i < STRING_LENGTH/5; ++i) {
buf.append("xxxx");
String entityValue = Entities.html40[i % Entities.html40.length][1];
char ch = (char) Integer.parseInt(entityValue);
buf.append(ch);
}
stringWithUnicode = buf.toString();
stringWithEntities = Entities.HTML40.unescape(stringWithUnicode);
}
}
public void testBuildHash() throws Exception {
for (int i = 0; i < COUNT; ++i) {
hashEntities = new Entities();
hashEntities.map = new Entities.HashIntMap();
Entities.fillWithHtml40Entities(hashEntities);
}
}
public void testBuildTree() throws Exception {
for (int i = 0; i < COUNT; ++i) {
treeEntities = new Entities();
treeEntities.map = new Entities.TreeIntMap();
Entities.fillWithHtml40Entities(treeEntities);
}
}
public void testBuildArray() throws Exception {
for (int i = 0; i < COUNT; ++i) {
arrayEntities = new Entities();
arrayEntities.map = new Entities.ArrayIntMap();
Entities.fillWithHtml40Entities(arrayEntities);
}
}
public void testEscapeHash() throws Exception {
escapeIt(hashEntities);
}
public void testEscapeTree() throws Exception {
escapeIt(treeEntities);
}
public void testEscapeArray() throws Exception {
escapeIt(arrayEntities);
}
public void testUnscapeHash() throws Exception {
unescapeIt(hashEntities);
}
public void testUnscapeTree() throws Exception {
unescapeIt(treeEntities);
}
public void testUnescapeArray() throws Exception {
unescapeIt(arrayEntities);
}
private void escapeIt(Entities entities) {
for (int i = 0; i < COUNT; ++i) {
String escaped = entities.escape(stringWithUnicode);
assertEquals("xxxx&fnof;", escaped.substring(0,10));
}
}
private void unescapeIt(Entities entities) {
for (int i = 0; i < COUNT; ++i) {
String unescaped = entities.unescape(stringWithEntities);
assertEquals("xxxx\u0192", unescaped.substring(0,5));
}
}
}

15
src/test/org/apache/commons/lang/EntitiesTest.java
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@ -65,7 +65,7 @@ import junit.textui.TestRunner;
*
* @author of original StringUtilsTest.testEscape = ?
* @author <a href="mailto:alex@purpletech.com">Alexander Day Chaffee</a>
* @version $Id: EntitiesTest.java,v 1.2 2003/05/24 04:38:05 alex Exp $
* @version $Id: EntitiesTest.java,v 1.3 2003/05/24 13:29:44 alex Exp $
*/
public class EntitiesTest extends TestCase
{
@ -132,5 +132,18 @@ public class EntitiesTest extends TestCase
assertEquals((int) '>', Entities.XML.entityValue("gt"));
assertEquals(-1, Entities.XML.entityValue("xyzzy"));
}
public void testArrayIntMap() throws Exception
{
Entities.ArrayIntMap map = new Entities.ArrayIntMap();
map.growBy = 2;
map.add("foo", 1);
assertEquals(1, map.value("foo"));
assertEquals("foo", map.name(1));
map.add("bar", 2);
map.add("baz", 3);
assertEquals(3, map.value("baz"));
assertEquals("baz", map.name(3));
}
}