/******************************************************************************* | |
* Copyright (c) 1998, 2013 Oracle and/or its affiliates. All rights reserved. | |
* This program and the accompanying materials are made available under the | |
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 | |
* which accompanies this distribution. | |
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html | |
* and the Eclipse Distribution License is available at | |
* http://www.eclipse.org/org/documents/edl-v10.php. | |
* | |
* Contributors: | |
* Oracle - initial API and implementation from Oracle TopLink | |
******************************************************************************/ | |
package org.eclipse.persistence.testing.tests.identitymaps; | |
import java.util.*; | |
import org.eclipse.persistence.testing.framework.*; | |
import org.eclipse.persistence.internal.identitymaps.*; | |
import org.eclipse.persistence.testing.models.employee.domain.*; | |
/** | |
* Read objects into the cache, force garbage collection, see that the cache is empty. | |
*/ | |
public class ConcurrentIdentityMapKeyEnumerationTest extends TestCase { | |
protected boolean shouldRun; | |
protected Object storedObject; | |
protected FullIdentityMap identityMap; | |
public ConcurrentIdentityMapKeyEnumerationTest() { | |
identityMap = new FullIdentityMap(1, null, null, false); | |
} | |
public void reset() { | |
shouldRun = false; | |
} | |
public void setup() { | |
storedObject = getSession().readObject(Employee.class); | |
shouldRun = true; | |
} | |
public void test() { | |
Thread enumeration = new Thread() { | |
public void run() { | |
while (shouldRun) { | |
Enumeration keys = identityMap.keys(); | |
while (keys.hasMoreElements()) { | |
try { | |
Object key = keys.nextElement(); | |
} catch (Exception ex) { | |
shouldRun = false; | |
synchronized (storedObject) { | |
storedObject.notifyAll(); | |
} | |
} | |
} | |
} | |
} | |
}; | |
enumeration.start(); | |
Thread remover = new Thread() { | |
public void run() { | |
Vector pk = new Vector(1); | |
pk.add(((Employee)storedObject).getId()); | |
while (shouldRun) { | |
identityMap.put(pk, storedObject, null, 0); | |
try { | |
Thread.sleep(2); | |
} catch (InterruptedException ex) { | |
shouldRun = false; | |
synchronized (storedObject) { | |
storedObject.notifyAll(); | |
} | |
} | |
identityMap.remove(pk, null); | |
} | |
} | |
}; | |
remover.start(); | |
try { | |
synchronized (storedObject) { | |
storedObject.wait(30000); | |
} | |
} catch (InterruptedException ex) { | |
} | |
if (shouldRun == false) { | |
throw new TestErrorException("Failed to ignore nulls while enumeration identitymap"); | |
} else { | |
shouldRun = false; | |
} | |
} | |
} |