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package org.jboss.cache.notifications;
import junit.framework.TestCase;
import org.jboss.cache.lock.IsolationLevel;
import org.jboss.cache.TreeCache;
import org.jboss.cache.DummyTransactionManagerLookup;
import org.jboss.cache.AbstractTreeCacheListener;
import org.jboss.cache.Fqn;
import org.jgroups.View;
import javax.transaction.TransactionManager;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.HashMap;
import java.util.List;
import java.util.Collections;
/**
* @author <a href="mailto:julien@jboss.org">Julien Viet</a>
* @version $Id: TreeCacheListenerTest.java 4117 2007-07-09 11:23:34Z msurtani $
*/
public class TreeCacheListenerTest extends TestCase
{
protected boolean optLocking = false;
public TreeCacheListenerTest(String s)
{
super(s);
}
private TreeCache cache;
protected void setUp() throws Exception
{
super.setUp();
cache = new TreeCache();
cache.setCacheMode(TreeCache.LOCAL);
cache.setIsolationLevel(IsolationLevel.REPEATABLE_READ);
if (optLocking) cache.setNodeLockingScheme("OPTIMISTIC");
cache.setTransactionManagerLookup(new DummyTransactionManagerLookup());
cache.create();
cache.start();
}
protected void tearDown() throws Exception
{
super.tearDown();
cache.stop();
cache.destroy();
}
public void testRemovePropertyWithCommit() throws Exception
{
cache.put("/", "name", "value");
EventLog el = new EventLog();
cache.addTreeCacheListener(el);
TransactionManager tm = cache.getTransactionManager();
tm.begin();
cache.remove("/", "name");
tm.commit();
assertEquals(Arrays.asList(new Object[]{"modify about to modify local /","modified /", "modify Modified local /"}), el.events);
el.events.clear();
}
public void testNodeCreatedAndModifiedEvent() throws Exception
{
EventLog el = new EventLog();
cache.addTreeCacheListener(el);
cache.put("/hello/world", "x", "y");
System.out.println(el.events);
List expectedChanges = new ArrayList();
expectedChanges.add("created /hello");
expectedChanges.add("created /hello/world");
if (optLocking)
{
// all creations are fired as mods since these reflect as modified nodes in the workspace. Opt locking only.
// Fqn.ROOT will be visited since children are created under it
expectedChanges.add("visited /");
expectedChanges.add("modify about to modify local /hello");
expectedChanges.add("modified /hello");
expectedChanges.add("modify Modified local /hello");
}
expectedChanges.add("modify about to modify local /hello/world");
expectedChanges.add("modified /hello/world");
expectedChanges.add("modify Modified local /hello/world");
//assertEquals(expectedChanges.size(), el.events.size());
assertEquals(expectedChanges, el.events);
el.events.clear();
}
public void testRemoveNodeWithRollback() throws Exception
{
cache.put("/child", new HashMap());
EventLog el = new EventLog();
cache.addTreeCacheListener(el);
TransactionManager tm = cache.getTransactionManager();
tm.begin();
cache.remove("/child");
tm.rollback();
if (optLocking)
{
// in opt locking, a rollback will result in nothing having changed in the cache and hence
// no notifications will fire.
assertEquals(Collections.EMPTY_LIST, el.events);
}
else
{
// with pess locking, a rollback consists of modifications + equal and opposite modifications.
assertEquals(Arrays.asList(new Object[]{"remove about to remove local /child","removed /child","remove Removed local /child","created /child"}), el.events);
}
el.events.clear();
}
public static class EventLog extends AbstractTreeCacheListener
{
public final List events = new ArrayList();
public void nodeCreated(Fqn fqn)
{
events.add("created " + fqn);
}
public void nodeRemove(Fqn fqn, boolean pre, boolean isLocal)
{
events.add("remove "+
(pre? "about to remove " : "Removed ") +
(isLocal? "local " : "remote ") + fqn);
}
public void nodeRemoved(Fqn fqn)
{
events.add("removed " + fqn);
}
public void nodeLoaded(Fqn fqn)
{
throw new UnsupportedOperationException();
}
public void nodeEvicted(Fqn fqn)
{
throw new UnsupportedOperationException();
}
public void nodeModify(Fqn fqn, boolean pre, boolean isLocal)
{
events.add("modify "+
(pre? "about to modify " : "Modified ") +
(isLocal? "local " : "remote ") + fqn);
}
public void nodeModified(Fqn fqn)
{
events.add("modified " + fqn);
}
public void nodeVisited(Fqn fqn)
{
events.add("visited " + fqn);
}
public void cacheStarted(TreeCache treeCache)
{
//throw new UnsupportedOperationException();
}
public void cacheStopped(TreeCache treeCache)
{
//throw new UnsupportedOperationException();
}
public void viewChange(View view)
{
throw new UnsupportedOperationException();
}
}
}