/*
* Copyright (C) 2003-2010 eXo Platform SAS.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see<http://www.gnu.org/licenses/>.
*/
package org.exoplatform.services.listener;
import junit.framework.TestCase;
import org.exoplatform.container.PortalContainer;
import org.exoplatform.container.component.ThreadContext;
import org.exoplatform.container.component.ThreadContextHolder;
/**
* Created by The eXo Platform SAS.
*
* <br/>Date:
*
* @author <a href="karpenko.sergiy@gmail.com">Karpenko Sergiy</a>
* @version $Id: TestAsynchronousListener.java 111 2008-11-11 11:11:11Z serg $
*/
public class TestAsynchronousListener extends TestCase
{
private ListenerService service_;
public void setUp() throws Exception
{
PortalContainer manager = PortalContainer.getInstance();
service_ = (ListenerService)manager.getComponentInstanceOfType(ListenerService.class);
TestHolder.tl.set("-suffix");
}
protected void tearDown() throws Exception
{
TestHolder.tl.remove();
}
public void testParentAsynchListener() throws Exception
{
final String listenerName = "test_parent_asynch";
final String baseString = "Value not changed";
final String resultString = "Value become changed";
assertNotNull(service_);
Listener<Object, StrValue> listener = new ExtendedAsynchListener();
listener.setName(listenerName);
listener.setDescription("Asynchronous listener");
service_.addListener(listener);
StrValue testValue = new StrValue(baseString);
synchronized (testValue)
{
service_.broadcast(listenerName, new Object(), testValue);
// if asynch enabled value must be changed later so it's same exact after listener
// broadcasting
assertEquals(baseString, testValue.getValue());
testValue.wait();
assertEquals(resultString + "-suffix", testValue.getValue());
}
assertEquals("-suffix", TestHolder.tl.get());
}
public void testAsynchronousListener() throws Exception
{
final String listenerName = "test_asynch";
final String baseString = "Value not changed";
final String resultString = "Value become changed";
assertNotNull(service_);
Listener<Object, StrValue> listener = new AsynchListener();
listener.setName(listenerName);
listener.setDescription("Asynchronous listener");
service_.addListener(listener);
StrValue testValue = new StrValue(baseString);
TestHolder.tl.set("-suffix");
synchronized (testValue)
{
service_.broadcast(listenerName, new Object(), testValue);
// if asynch enabled value must be changed later so it's same exact after listener
// broadcasting
assertEquals(baseString, testValue.getValue());
testValue.wait();
assertEquals(resultString + "-suffix", testValue.getValue());
}
assertEquals("-suffix", TestHolder.tl.get());
}
public void testSynchronousListener() throws Exception
{
final String listenerName = "test_synch";
final String baseString = "Value not changed";
final String resultString = "Value become changed";
assertNotNull(service_);
Listener<Object, StrValue> listener = new SynchListener();
listener.setName(listenerName);
listener.setDescription("Synchronous listener");
service_.addListener(listener);
StrValue testValue = new StrValue(baseString);
TestHolder.tl.set("-suffix");
service_.broadcast(listenerName, null, testValue);
// if Synch enabled - broadcast must wait until all events will be processed,
// so value must be changed
assertFalse(baseString.equals(testValue.getValue()));
assertEquals(resultString + "-suffix", testValue.getValue());
assertEquals("-suffix", TestHolder.tl.get());
}
public void testSynchronousExeption() throws Exception
{
try
{
final String listenerName = "test_synch_exeption";
assertNotNull(service_);
Listener<Object, StrValue> listener = new SynchListenerWithException();
listener.setName(listenerName);
listener.setDescription("Synchronous listener with exception");
service_.addListener(listener);
StrValue testValue = new StrValue("no matter");
service_.broadcast(listenerName, null, testValue);
// exception must be ignored
}
catch (Exception e)
{
fail("Exception must be ignored.");
}
}
public void testAsynchronousExeption() throws Exception
{
try
{
final String listenerName = "test_asynch_exeption";
assertNotNull(service_);
Listener<Object, StrValue> listener = new AsynchListenerWithException();
listener.setName(listenerName);
listener.setDescription("Asynchronous listener with exception");
service_.addListener(listener);
StrValue testValue = new StrValue("no matter");
service_.broadcast(listenerName, null, testValue);
// exception must be ignored
Thread.sleep(1000);
}
catch (Exception e)
{
fail("Exception must be ignored.");
}
}
class StrValue
{
private String val;
public StrValue(String value)
{
val = value;
}
public void setValue(String value)
{
val = value + TestHolder.tl.get();
}
public String getValue()
{
return val;
}
}
@Asynchronous
class AsynchListener extends Listener<Object, StrValue>
{
@Override
public void onEvent(Event<Object, StrValue> event) throws Exception
{
StrValue value = event.getData();
//wait
synchronized (value)
{
//change test value
value.setValue("Value become changed");
value.notifyAll();
}
}
}
class SynchListener extends Listener<Object, StrValue>
{
@Override
public void onEvent(Event<Object, StrValue> event) throws Exception
{
//wait
Thread.sleep(1000);
//change test value
event.getData().setValue("Value become changed");
}
}
class ExtendedAsynchListener extends AsynchListener
{
// do nothing. This class exist only for check, does ListenerService process
// extended Asynchronous listeners as asynchronous
}
@Asynchronous
class AsynchListenerWithException extends Listener<Object, StrValue>
{
@Override
public void onEvent(Event<Object, StrValue> event) throws Exception
{
//wait
Thread.sleep(1000);
throw new Exception("This is test exception");
}
}
class SynchListenerWithException extends Listener<Object, StrValue>
{
@Override
public void onEvent(Event<Object, StrValue> event) throws Exception
{
//wait
Thread.sleep(1000);
throw new Exception("This is test exception");
}
}
public static class TestHolder implements ThreadContextHolder
{
public static ThreadLocal<String> tl = new ThreadLocal<String>();
public ThreadContext getThreadContext()
{
return new ThreadContext(tl);
}
}
}