/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* For further information about Alkacon Software GmbH, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.util;
import org.opencms.test.OpenCmsTestCase;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.URI;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import org.safehaus.uuid.UUID;
/**
* Test case for the UUID generator.<p>
*
* @since 6.0.0
*/
public class TestCmsUUID extends OpenCmsTestCase {
/** Map to store serialized objects with a name. */
private Map m_serializedMap = new HashMap();
/**
* Default JUnit constructor.<p>
*
* @param arg0 JUnit parameters
*/
public TestCmsUUID(String arg0) {
super(arg0);
}
/**
* Tests UUID generation.<p>
*
* @throws Exception if the test fails
*/
public void testUUID() throws Exception {
CmsUUID.init(CmsUUID.getDummyEthernetAddress());
CmsUUID id1 = new CmsUUID();
CmsUUID id2 = new CmsUUID();
CmsUUID id3 = new CmsUUID();
assertNotSame(id1, id2);
assertFalse(id1.equals(id2));
assertNotSame(id1, id3);
assertFalse(id1.equals(id3));
assertNotSame(id3, id2);
assertFalse(id3.equals(id2));
CmsUUID id4 = CmsUUID.getNullUUID();
assertTrue(id4.isNullUUID());
assertTrue(id4.equals(CmsUUID.getNullUUID()));
}
/**
* Tests serialization of the CmsUUID.<p>
*
* @throws Exception if the test fails
*/
public void testUUIDSerialization() throws Exception {
CmsUUID.init(CmsUUID.getDummyEthernetAddress());
CmsUUID id1 = new CmsUUID();
serializeObject("id1", id1);
CmsUUID d_id1 = (CmsUUID)deSerializeObject("id1");
assertEquals(id1, d_id1);
// serializeObjectToFile("org/opencms/util/uuid_v535.bmp", id1);
}
/**
* Tests de-serialization of CmsUUIDs from various OpenCms versions.<p>
*
* @throws Exception if the test fails
*/
public void testUUIDDeSerialization() throws Exception {
CmsUUID uuid_v702 = (CmsUUID)deSerializeObjectFromFile("org/opencms/util/uuid_v702.bmp");
System.out.println("De-Serialized from version 7.0.2: " + uuid_v702.toString());
CmsUUID uuid_v701 = (CmsUUID)deSerializeObjectFromFile("org/opencms/util/uuid_v701.bmp");
System.out.println("De-Serialized from version 7.0.1: " + uuid_v701.toString());
CmsUUID uuid_v623 = (CmsUUID)deSerializeObjectFromFile("org/opencms/util/uuid_v623.bmp");
System.out.println("De-Serialized from version 6.2.3: " + uuid_v623.toString());
CmsUUID uuid_v620 = (CmsUUID)deSerializeObjectFromFile("org/opencms/util/uuid_v620.bmp");
System.out.println("De-Serialized from version 6.2.0: " + uuid_v620.toString());
// de-serialization of CmsUUIDs before 6.2.0 is impossible because of changes to the UUID implementation
// CmsUUID uuid_v605 = (CmsUUID)deSerializeObjectFromFile("org/opencms/util/uuid_v605.bmp");
// System.out.println("De-Serialized from version 6.0.5: " + uuid_v605.toString());
//
// CmsUUID uuid_v600 = (CmsUUID)deSerializeObjectFromFile("org/opencms/util/uuid_v600.bmp");
// System.out.println("De-Serialized from version 6.0.0: " + uuid_v600.toString());
//
// CmsUUID uuid_v535 = (CmsUUID)deSerializeObjectFromFile("org/opencms/util/uuid_v535.bmp");
// System.out.println("De-Serialized from version 5.3.5: " + uuid_v535.toString());
}
/**
* Tests UUID equals() method.<p>
*
* @throws Exception if the test fails
*/
public void testUUIDEquals() throws Exception {
CmsUUID.init(CmsUUID.getDummyEthernetAddress());
CmsUUID id1 = new CmsUUID("c300ba5c-01e8-3727-b305-5dcc9ccae1ee");
CmsUUID id2 = new CmsUUID("c300ba5c-01e8-3727-b305-5dcc9ccae1ee");
assertNotSame(id1, id2);
assertEquals(id1, id2);
CmsUUID id3 = new CmsUUID();
assertFalse(id1.equals(id3));
assertFalse(id2.equals(id3));
UUID uid1 = new UUID("c300ba5c-01e8-3727-b305-5dcc9ccae1ee");
UUID uid2 = new UUID("c300ba5c-01e8-3727-b305-5dcc9ccae1ee");
assertNotSame(uid1, uid2);
assertEquals(uid1, uid2);
// check behaviour of equals method in JUG UUID class
UUID uid = new UUID("c300ba5c-01e8-3727-b305-5dcc9ccae1ee");
byte[] b1 = uid.asByteArray();
byte[] b2 = uid.toByteArray();
assertNotSame(b1, b2);
byte[] b3 = uid.asByteArray();
assertNotSame(b1, b3);
byte[] b4 = uid.toByteArray();
assertNotSame(b2, b4);
CmsUUID idNull = new CmsUUID("00000000-0000-0000-0000-000000000000");
assertTrue(idNull.isNullUUID());
CmsUUID id4 = CmsUUID.getNullUUID();
assertEquals(idNull, id4);
System.out.println("Generating a lot of UUIDs in a loop very fast - warnings may pe printed to console...");
int testSize = 100000;
CmsUUID[] ids = new CmsUUID[testSize];
for (int i = 0; i < testSize; i++) {
ids[i] = new CmsUUID();
}
int hits1 = 0;
Random r = new Random();
long start = System.currentTimeMillis();
for (int i = 0; i < testSize; i++) {
int pos1 = r.nextInt(testSize);
int pos2 = r.nextInt(testSize);
if (ids[pos1].equals(ids[pos2])) {
hits1++;
}
}
long time1 = System.currentTimeMillis() - start;
System.out.println("Time for UUID equals() implementation for " + testSize + " UUIDs : " + time1);
}
/**
* Tests the {@link CmsUUID#isValidUUID(String)} method.<p>
*
* @throws Exception if the test fails
*/
public void testUUIDisValid() throws Exception {
assertTrue(CmsUUID.isValidUUID((new CmsUUID()).toString()));
assertTrue(CmsUUID.isValidUUID(CmsUUID.getNullUUID().toString()));
assertFalse(CmsUUID.isValidUUID(CmsUUID.getNullUUID().toString() + "0"));
assertFalse(CmsUUID.isValidUUID("0" + CmsUUID.getNullUUID().toString()));
assertFalse(CmsUUID.isValidUUID(null));
assertFalse(CmsUUID.isValidUUID(""));
assertFalse(CmsUUID.isValidUUID("kaputt"));
}
/**
* De-Serializes an object with the given name from the internal Map.<p>
*
* @param name the name to use
*
* @return the de-serialized Object
*
* @throws Exception if something goes wrong
*/
protected Object deSerializeObject(String name) throws Exception {
byte[] bytes = (byte[])m_serializedMap.get(name);
ByteArrayInputStream bin = new ByteArrayInputStream(bytes);
ObjectInputStream oin = new ObjectInputStream(bin);
return oin.readObject();
}
/**
* De-Serializes an object from an external File with the given name.<p>
*
* @param name the name to use
*
* @return the de-serialized Object
*
* @throws Exception if something goes wrong
*/
protected Object deSerializeObjectFromFile(String name) throws Exception {
ObjectInputStream oin = new ObjectInputStream(getClass().getClassLoader().getResourceAsStream(name));
return oin.readObject();
}
/**
* Serializes an object and stores the result into an internal Map using the given name.<p>
*
* @param name the name to use
* @param o the Object to serialize
*
* @throws Exception if something goes wrong
*/
protected void serializeObject(String name, Object o) throws Exception {
ByteArrayOutputStream bout = new ByteArrayOutputStream();
ObjectOutputStream oout = new ObjectOutputStream(bout);
oout.writeObject(o);
oout.close();
m_serializedMap.put(name, bout.toByteArray());
}
/**
* Serializes an object and stores the result into a file with the given name.<p>
*
* @param name the name to use
* @param o the Object to serialize
*
* @throws Exception if something goes wrong
*/
protected void serializeObjectToFile(String name, Object o) throws Exception {
File outputFile = new File(new URI(getClass().getClassLoader().getResource(name).toString()));
// System.out.println(outputFile.getAbsolutePath());
FileOutputStream fout = new FileOutputStream(outputFile);
ObjectOutputStream oout = new ObjectOutputStream(fout);
oout.writeObject(o);
oout.close();
}
}