/*
* Copyright (c) 2001-2007 Sun Microsystems, Inc. All rights reserved.
*
* The Sun Project JXTA(TM) Software License
*
* 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 acknowledgment: "This product includes software
* developed by Sun Microsystems, Inc. for JXTA(TM) technology."
* Alternately, this acknowledgment may appear in the software itself, if
* and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Sun", "Sun Microsystems, Inc.", "JXTA" and "Project JXTA" must
* not be used to endorse or promote products derived from this software
* without prior written permission. For written permission, please contact
* Project JXTA at http://www.jxta.org.
*
* 5. Products derived from this software may not be called "JXTA", nor may
* "JXTA" appear in their name, without prior written permission of Sun.
*
* 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 SUN
* MICROSYSTEMS 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
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* JXTA is a registered trademark of Sun Microsystems, Inc. in the United
* States and other countries.
*
* Please see the license information page at :
* <http://www.jxta.org/project/www/license.html> for instructions on use of
* the license in source files.
*
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals
* on behalf of Project JXTA. For more information on Project JXTA, please see
* http://www.jxta.org.
*
* This license is based on the BSD license adopted by the Apache Foundation.
*/
package net.jxta.document;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.lang.Thread.UncaughtExceptionHandler;
import java.util.Arrays;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;
import java.util.concurrent.TimeUnit;
import junit.framework.*;
public class MimeMediaTypeTest extends TestCase {
private boolean exceptionOnThread = false;
private final class ExceptionCatchingThreadFactory implements ThreadFactory {
public Thread newThread(Runnable r) {
Thread t = new Thread(r);
t.setUncaughtExceptionHandler(new UncaughtExceptionHandler() {
public void uncaughtException(Thread t, Throwable exception) {
System.err.println("Exception occurred on test thread");
exception.printStackTrace();
exceptionOnThread = true;
}
});
return t;
}
}
public MimeMediaTypeTest(java.lang.String testName) {
super(testName);
}
@Override
protected void tearDown() throws Exception {
MimeMediaType.clearInternMap();
exceptionOnThread = false;
}
public void testConstructors() {
MimeMediaType plainXMLString = new MimeMediaType("text/xml");
MimeMediaType plainXML2params = new MimeMediaType("text", "xml");
MimeMediaType plaintext2params = new MimeMediaType("text", "plain");
assertTrue(plainXMLString.equals(plainXMLString));
assertTrue(plainXMLString.equals(plainXML2params));
assertTrue(!plainXMLString.equals(plaintext2params));
MimeMediaType utf8xmlstring = new MimeMediaType("Text/Xml;charset=UTF-8");
MimeMediaType utf8xmlparams = new MimeMediaType("text", "xml", "cHarset=\"UTF-8\"");
MimeMediaType utf8xmlstringcomments = new MimeMediaType("text/xml;(ha)chArset=\"UTF-8\"(ha)");
assertTrue(!plainXMLString.equals(utf8xmlstring));
assertTrue(utf8xmlstring.equals(utf8xmlparams));
assertTrue(utf8xmlparams.equals(utf8xmlstringcomments));
MimeMediaType xmlmanyparamsstring = new MimeMediaType(
"text/xml;chArset=\"UTF-8\";encoding=\"BASE64\";synopsis=\"boring\";priority=\"junk\"");
MimeMediaType xmlmanyparamsparams = new MimeMediaType("text", "xml"
,
"Charset=\"UTF-8\";Encoding=\"BASE64\";Synopsis=\"boring\";Priority=\"junk\"");
assertTrue(!plainXMLString.equals(xmlmanyparamsstring));
assertTrue(!utf8xmlstring.equals(xmlmanyparamsstring));
assertTrue(xmlmanyparamsstring.equals(xmlmanyparamsparams));
}
public void testObjectMethods() {
MimeMediaType plainXMLString = new MimeMediaType("text/xml");
String roundtrip = new MimeMediaType(plainXMLString.toString()).toString();
assertTrue(roundtrip.equals(plainXMLString.toString()));
}
public void testAccessors() {
String type = "text/xml";
MimeMediaType plainXMLString = new MimeMediaType(type);
assertTrue(type.equals(plainXMLString.getMimeMediaType()));
assertTrue("text".equals(plainXMLString.getType()));
assertTrue("xml".equals(plainXMLString.getSubtype()));
assertTrue(!plainXMLString.isExperimentalType());
assertTrue(!plainXMLString.isExperimentalSubtype());
MimeMediaType experimentalXMLString = new MimeMediaType("x-text", "x-xml");
MimeMediaType nonexperimentalXMLString = new MimeMediaType("text", "xml");
assertTrue(experimentalXMLString.isExperimentalType());
assertTrue(experimentalXMLString.isExperimentalSubtype());
assertTrue(!nonexperimentalXMLString.isExperimentalType());
assertTrue(!nonexperimentalXMLString.isExperimentalSubtype());
}
public void testParams() {
MimeMediaType xmlmanyparamsstring = new MimeMediaType(
"text/xml;chArset=\"UTF-8\";encoding=\"BASE64\";synopsis=\"boring\";priority=\"junk\"");
assertTrue("UTF-8".equals(xmlmanyparamsstring.getParameter("charset")));
assertTrue("boring".equals(xmlmanyparamsstring.getParameter("synopsis")));
assertTrue("junk".equals(xmlmanyparamsstring.getParameter("priority")));
assertNull(xmlmanyparamsstring.getParameter("destination"));
MimeMediaType roundtrippedmany = new MimeMediaType(xmlmanyparamsstring.toString());
assertTrue(roundtrippedmany.equals(xmlmanyparamsstring));
MimeMediaType xmllowercharset = new MimeMediaType("text/xml;charset=\"UTF-8\"");
MimeMediaType xmlUPPERcharset = new MimeMediaType("text/xml;CHARSET=\"UTF-8\"");
assertTrue(xmllowercharset.equals(xmlUPPERcharset));
MimeMediaType spaceparam = new MimeMediaType("text/xml;charset=\"x y z\"");
String spacedparam = spaceparam.getParameter("charset");
assertTrue(spacedparam.equals("x y z"));
MimeMediaType roundtrippedspace = new MimeMediaType(spaceparam.toString());
assertTrue(roundtrippedspace.equals(spaceparam));
spacedparam = spaceparam.getParameter("ChArSeT");
assertTrue("attributes should be case insensitive", spacedparam.equals("x y z"));
}
public void testValueOf() {
MimeMediaType newed = new MimeMediaType("text/xml");
MimeMediaType valued = MimeMediaType.valueOf("text/xml");
assertTrue(newed.equals(valued));
MimeMediaType newInterned = newed.intern();
MimeMediaType valueInterned = valued.intern();
assertTrue(valued == valueInterned);
assertTrue(newInterned.equals(valueInterned));
assertTrue(newInterned == valueInterned);
}
public void testInternPerformance() {
int trials = 10000;
String [] strings = new String[trials];
MimeMediaType [] mimes = new MimeMediaType[trials];
for(int each = 0; each < trials; each++) {
strings[each] = new String("text/xml; charset=\"UTF-87\"");
}
long start;
long stop;
System.runFinalization();
System.gc();
System.gc();
start = System.currentTimeMillis();
for(int each = 0; each < trials; each++) {
mimes[each] = new MimeMediaType(strings[each]);
}
stop = System.currentTimeMillis();
System.out.println( stop - start + "ms for " + trials + " identical types.");
System.runFinalization();
System.gc();
System.gc();
start = System.currentTimeMillis();
for(int each = 0; each < trials; each++) {
mimes[each] = new MimeMediaType(strings[each]).intern();
}
stop = System.currentTimeMillis();
System.out.println( stop - start + "ms for " + trials + " identical interned types.");
Arrays.fill(strings, null);
Arrays.fill(mimes, null);
for(int each = 0; each < trials; each++) {
strings[each] = new String("text/xml; charset=\"UTF-XX" + each + "\"");
}
System.runFinalization();
System.gc();
System.gc();
start = System.currentTimeMillis();
for(int each = 0; each < trials; each++) {
mimes[each] = new MimeMediaType(strings[each]);
}
stop = System.currentTimeMillis();
System.out.println( stop - start + "ms for " + trials + " unique types.");
System.runFinalization();
System.gc();
System.gc();
start = System.currentTimeMillis();
for(int each = 0; each < trials; each++) {
mimes[each] = new MimeMediaType(strings[each]).intern();
}
stop = System.currentTimeMillis();
System.out.println( stop - start + "ms for " + trials + " unique interned types.");
Arrays.fill(strings, null);
Arrays.fill(mimes, null);
for(int each = 0; each < trials; each++) {
strings[each] = new String("text/xml; charset=\"UTF-XX" + (each % 100) + "\"");
}
System.runFinalization();
System.gc();
System.gc();
start = System.currentTimeMillis();
for(int each = 0; each < trials; each++) {
mimes[each] = new MimeMediaType(strings[each]);
}
stop = System.currentTimeMillis();
System.out.println( stop - start + "ms for " + trials + " non-unique types.");
System.runFinalization();
System.gc();
System.gc();
start = System.currentTimeMillis();
for(int each = 0; each < trials; each++) {
mimes[each] = new MimeMediaType(strings[each]).intern();
}
stop = System.currentTimeMillis();
System.out.println( stop - start + "ms for " + trials + " non-unique interned types.");
}
public void testInternContention() {
final int concurrency = 50;
final int trials = 50000;
long stop;
ExecutorService executor = Executors.newCachedThreadPool(new ExceptionCatchingThreadFactory());
// Pre-create threads.
for(int spawn = 0; spawn < concurrency; spawn++) {
executor.execute( new Runnable() {
public void run() {
try {
Thread.sleep(500);
} catch(InterruptedException woken) {
}
}
});
}
try {
Thread.sleep(500);
} catch(InterruptedException woken) {
}
System.runFinalization();
System.gc();
System.gc();
final long start = System.currentTimeMillis();
for(int each = 0; each < concurrency; each++) {
final String runcount = "Run #" + each;
executor.execute( new Runnable() {
public void run() {
System.err.println( runcount + " start " + (System.currentTimeMillis() - start));
MimeMediaType [] mimes = new MimeMediaType[trials];
for(int each = 0; each < trials; each++) {
mimes[each] = new MimeMediaType(new String("text/xml")).intern();
}
System.err.println( runcount + " done " + (System.currentTimeMillis() - start));
}
});
}
executor.shutdown();
try {
executor.awaitTermination(60, TimeUnit.SECONDS);
} catch(InterruptedException woken) {
}
assertFalse(exceptionOnThread);
stop = System.currentTimeMillis();
System.err.flush();
System.out.flush();
System.out.println( stop - start + "ms for " + trials + " identical types on " + concurrency + " threads.");
}
public void testInternUniquesContention() {
final int concurrency = 50;
final int trials = 1000;
long stop;
ExecutorService executor = Executors.newCachedThreadPool(new ExceptionCatchingThreadFactory());
// Pre-create threads.
for(int spawn = 0; spawn < concurrency; spawn++) {
executor.execute( new Runnable() {
public void run() {
try {
Thread.sleep(500);
} catch(InterruptedException woken) {
}
}
});
}
try {
Thread.sleep(500);
} catch(InterruptedException woken) {
}
System.runFinalization();
System.gc();
System.gc();
final long start = System.currentTimeMillis();
for(int each = 0; each < concurrency; each++) {
final String runcount = "Run #" + each;
executor.execute( new Runnable() {
public void run() {
System.err.println( runcount + " start " + (System.currentTimeMillis() - start));
MimeMediaType [] mimes = new MimeMediaType[trials];
for(int each = 0; each < trials; each++) {
mimes[each] = new MimeMediaType(new String("text/xml; charset=\"" + runcount + each + "\"" )).intern();
}
System.err.println( runcount + " done " + (System.currentTimeMillis() - start));
}
});
}
executor.shutdown();
try {
executor.awaitTermination(320, TimeUnit.SECONDS);
} catch(InterruptedException woken) {
}
stop = System.currentTimeMillis();
assertFalse("Exception occurred in one or more threads", exceptionOnThread);
System.err.flush();
System.out.flush();
System.out.println( stop - start + "ms for " + trials + " unique types on " + concurrency + " threads.");
}
public void testSerialization() {
MimeMediaType one = new MimeMediaType("text/xml");
try {
ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bos);
oos.writeObject(one);
oos.close();
bos.close();
ByteArrayInputStream bis = new ByteArrayInputStream(bos.toByteArray());
ObjectInputStream ois = new ObjectInputStream(bis);
MimeMediaType two = (MimeMediaType) ois.readObject();
assertTrue("MimeMediaTypes should have been equal()", one.equals(two));
} catch (Throwable failure) {
fail("Exception during test! " + failure.getMessage());
}
}
public static Test suite() {
TestSuite suite = new TestSuite(MimeMediaTypeTest.class);
return suite;
}
public static void main(java.lang.String[] args) {
junit.textui.TestRunner.run(suite());
System.err.flush();
System.out.flush();
}
}