/*
* Copyright (c) 2003, 2004 Rafael Steil
* All rights reserved.
*
* Redistribution and use in source and binary forms,
* with or without modification, are permitted provided
* that the following conditions are met:
*
* 1) Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* 2) Redistributions in binary form must reproduce the
* above copyright notice, this list of conditions and
* the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* 3) Neither the name of "Rafael Steil" nor
* the names of its contributors may be used to endorse
* or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT
* HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
*
* Created on Jan 13, 2005 11:42:54 PM
* The JForum Project
* http://www.jforum.net
*/
package net.jforum.cache;
import java.util.ArrayList;
import java.util.Collection;
import net.jforum.exceptions.CacheException;
import net.jforum.util.preferences.ConfigKeys;
import net.jforum.util.preferences.SystemGlobals;
import org.apache.log4j.Logger;
import org.jboss.cache.Fqn;
import org.jboss.cache.Node;
import org.jboss.cache.PropertyConfigurator;
import org.jboss.cache.TreeCache;
/**
* @author Rafael Steil
* @version $Id: JBossCacheEngine.java,v 1.7 2005/09/25 02:40:28 rafaelsteil Exp $
*/
public class JBossCacheEngine implements CacheEngine
{
private Logger logger = Logger.getLogger(JBossCacheEngine.class);
private TreeCache cache;
/**
* @see net.jforum.cache.CacheEngine#init()
*/
public void init()
{
try {
this.cache = new TreeCache();
PropertyConfigurator config = new PropertyConfigurator();
config.configure(this.cache, SystemGlobals.getValue(ConfigKeys.JBOSS_CACHE_PROPERTIES));
this.cache.startService();
}
catch (Exception e) {
throw new CacheException("Error while trying to configure jboss-cache: " + e);
}
}
/**
* @see net.jforum.cache.CacheEngine#stop()
*/
public void stop()
{
this.cache.stopService();
}
/**
* @see net.jforum.cache.CacheEngine#add(java.lang.String, java.lang.Object)
*/
public void add(String key, Object value)
{
this.add(CacheEngine.DUMMY_FQN, key, value);
}
/**
* @see net.jforum.cache.CacheEngine#add(java.lang.String, java.lang.String, java.lang.Object)
*/
public void add(String fqn, String key, Object value)
{
try {
this.cache.put(Fqn.fromString(fqn), key, value);
}
catch (Exception e) {
throw new CacheException("Error adding a new entry to the cache: " + e);
}
}
/**
* @see net.jforum.cache.CacheEngine#get(java.lang.String, java.lang.String)
*/
public Object get(String fqn, String key)
{
try {
return this.cache.get(Fqn.fromString(fqn), key);
}
catch (Exception e) {
throw new CacheException("Error while trying to get an entry from the cache: " + e);
}
}
/**
* @see net.jforum.cache.CacheEngine#get(java.lang.String)
*/
public Object get(String fqn)
{
try {
return this.cache.get(Fqn.fromString(fqn));
}
catch (Exception e) {
throw new CacheException("Error while trying to get an entry from the cache: " + e);
}
}
/**
* @see net.jforum.cache.CacheEngine#getValues(java.lang.String)
*/
public Collection getValues(String fqn)
{
Node node = (Node)this.get(fqn);
if (node == null) {
return new ArrayList();
}
return node.getData().values();
}
/**
* @see net.jforum.cache.CacheEngine#remove(java.lang.String, java.lang.String)
*/
public void remove(String fqn, String key)
{
try {
if (key == null) {
this.cache.remove(Fqn.fromString(fqn));
}
else {
this.cache.remove(Fqn.fromString(fqn), key);
}
}
catch (Exception e) {
logger.warn("Error while removing a FQN from the cache: " + e);
}
}
/**
* @see net.jforum.cache.CacheEngine#remove(java.lang.String)
*/
public void remove(String fqn)
{
try {
this.cache.remove(Fqn.fromString(fqn));
}
catch (Exception e) {
logger.warn("Error while removing a FQN from the cache: " + e);
}
}
}