/*
* JBoss, the OpenSource J2EE webOS
*
* Distributable under LGPL license.
* See terms of license at gnu.org.
*/
package org.jboss.cache.eviction;
import junit.framework.TestCase;
import org.jboss.cache.PropertyConfigurator;
import org.jboss.cache.TreeCache;
import org.jboss.cache.misc.TestingUtil;
import org.jboss.cache.lock.IsolationLevel;
/**
* Unit tests for MRUPolicy.
*
* @author Daniel Huang (dhuang@jboss.org)
* @version $Revision: 1838 $
*/
public class MRUPolicyTest extends TestCase
{
TreeCache cache;
int wakeupIntervalMillis = 0;
final String ROOT_STR = "/test";
Throwable t1_ex, t2_ex;
final long DURATION = 10000;
boolean isTrue;
public void setUp() throws Exception
{
super.setUp();
System.out.println("Test " + getName() + "\n");
initCaches();
wakeupIntervalMillis = cache.getEvictionThreadWakeupIntervalSeconds() * 1000;
log("wakeupInterval is " + wakeupIntervalMillis);
if (wakeupIntervalMillis < 0)
fail("testEviction(): eviction thread wake up interval is illegal " + wakeupIntervalMillis);
t1_ex = t2_ex = null;
isTrue = true;
}
public void tearDown() throws Exception
{
super.tearDown();
cache.stopService();
}
private void initCaches() throws Exception
{
cache = new TreeCache();
PropertyConfigurator config = new PropertyConfigurator();
config.configure(cache, "META-INF/local-mru-eviction-service.xml"); // read in generic local xml
cache.setTransactionManagerLookupClass("org.jboss.cache.DummyTransactionManagerLookup");
cache.setIsolationLevel(IsolationLevel.SERIALIZABLE);
cache.startService();
}
public void testEviction() throws Exception
{
cache.put("/org/jboss/test/data/a", "/org/jboss/test/data/a", "/org/jboss/test/data/a");
cache.put("/org/jboss/test/data/b", "/org/jboss/test/data/b", "/org/jboss/test/data/b");
cache.put("/org/jboss/test/data/c", "/org/jboss/test/data/c", "/org/jboss/test/data/c");
cache.put("/org/jboss/test/data/d", "/org/jboss/test/data/d", "/org/jboss/test/data/d");
cache.put("/org/jboss/test/data/e", "/org/jboss/test/data/e", "/org/jboss/test/data/e");
TestingUtil.sleepThread(wakeupIntervalMillis + 500);
System.out.println(cache.toString(true));
cache.put("/org/jboss/test/data/f", "/org/jboss/test/data/f", "/org/jboss/test/data/f");
cache.put("/org/jboss/test/data/g", "/org/jboss/test/data/g", "/org/jboss/test/data/g");
cache.put("/org/jboss/test/data/h", "/org/jboss/test/data/h", "/org/jboss/test/data/h");
assertNotNull(cache.get("/org/jboss/test/data/a", "/org/jboss/test/data/a"));
assertNotNull(cache.get("/org/jboss/test/data/b", "/org/jboss/test/data/b"));
TestingUtil.sleepThread(wakeupIntervalMillis + 500);
System.out.println(cache.toString(true));
assertNull(cache.get("/org/jboss/test/data/a", "/org/jboss/test/data/a"));
assertNull(cache.get("/org/jboss/test/data/b", "/org/jboss/test/data/b"));
}
public void testNodeRemoved() throws Exception
{
cache.put("/org/jboss/test/data/a", "/org/jboss/test/data/a", "/org/jboss/test/data/a");
cache.put("/org/jboss/test/data/b", "/org/jboss/test/data/b", "/org/jboss/test/data/b");
cache.put("/org/jboss/test/data/c", "/org/jboss/test/data/c", "/org/jboss/test/data/c");
cache.put("/org/jboss/test/data/d", "/org/jboss/test/data/d", "/org/jboss/test/data/d");
cache.put("/org/jboss/test/data/e", "/org/jboss/test/data/e", "/org/jboss/test/data/e");
TestingUtil.sleepThread(wakeupIntervalMillis + 500);
cache.remove("/org/jboss/test/data/d");
cache.remove("/org/jboss/test/data/e");
cache.put("/org/jboss/test/data/f", "/org/jboss/test/data/f", "/org/jboss/test/data/f");
cache.put("/org/jboss/test/data/g", "/org/jboss/test/data/g", "/org/jboss/test/data/g");
TestingUtil.sleepThread(wakeupIntervalMillis + 500);
assertNull(cache.get("/org/jboss/test/data/d", "/org/jboss/test/data/d"));
assertNull(cache.get("/org/jboss/test/data/e", "/org/jboss/test/data/e"));
assertNotNull(cache.get("/org/jboss/test/data/f", "/org/jboss/test/data/f"));
assertNotNull(cache.get("/org/jboss/test/data/g", "/org/jboss/test/data/g"));
}
class MyPutter extends Thread
{
public MyPutter(String name)
{
super(name);
}
public void run()
{
int i = 0;
final String myName = ROOT_STR + "/test1/node" + getName();
while (isTrue)
{
try
{
cache.put(myName + i++, "value", new Integer(i));
TestingUtil.sleepThread(1);
}
catch (Throwable e)
{
e.printStackTrace();
if (t1_ex == null)
t1_ex = e;
}
}
}
}
public void testConcurrentPutAndEvict() throws Exception
{
cache.setIsolationLevel(IsolationLevel.REPEATABLE_READ);
cache.put(ROOT_STR + "/concurrentPutAndEvict", "value", new Integer(1));
for (int i = 0; i < 10; i++)
{
new MyPutter("Putter" + i).start();
}
int counter = 0;
while (true)
{
counter++;
if (t1_ex != null)
{
fail("Exception generated in put() " + t1_ex);
}
log("nodes/locks: " + cache.getNumberOfNodes() + "/" + cache.getNumberOfLocksHeld());
TestingUtil.sleepThread(1000);
if (counter > 10)
{ // run for 10 seconds
isTrue = false;
break;
}
}
}
private void log(String s)
{
System.out.println(s);
}
}