RamPreferencesStorage.java

/**
* OLAT - Online Learning and Training<br>
* http://www.olat.org
* <p>
* Licensed under the Apache License, Version 2.0 (the "License"); <br>
* you may not use this file except in compliance with the License.<br>
* You may obtain a copy of the License at
* <p>
* http://www.apache.org/licenses/LICENSE-2.0
* <p>
* Unless required by applicable law or agreed to in writing,<br>
* software distributed under the License is distributed on an "AS IS" BASIS, <br>
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <br>
* See the License for the specific language governing permissions and <br>
* limitations under the License.
* <p>
* Copyright (c) since 2004 at Multimedia- & E-Learning Services (MELS),<br>
* University of Zurich, Switzerland.
* <hr>
* <a href="http://www.openolat.org">
* OpenOLAT - Online Learning and Training</a><br>
* This file has been modified by the OpenOLAT community. Changes are licensed
* under the Apache 2.0 license as the original file.  
* <p>
* Initial code contributed and copyrighted by<br>
* JGS goodsolutions GmbH, http://www.goodsolutions.ch
* <p>
*/
package org.olat.core.util.prefs.ram;

import java.util.HashMap;
import java.util.Map;

import org.olat.core.id.Identity;
import org.olat.core.util.prefs.Preferences;
import org.olat.core.util.prefs.PreferencesStorage;

/**
 * Description:<br>
 * <P>
 * Initial Date: 04.01.2007 <br>
 * 
 * @author Felix Jost
 */
public class RamPreferencesStorage implements PreferencesStorage {
	private Map<String, Preferences> identToPrefs;

	public RamPreferencesStorage() {
		identToPrefs = new HashMap<String, Preferences>();
	}

	/**
	 * @see org.olat.core.util.prefs.PreferencesStorage#getPreferencesFor(org.olat.core.id.Identity,
	 *      boolean)
	 */
	public Preferences getPreferencesFor(Identity identity, boolean useTransientPreferences) {
		Preferences p;
		synchronized (this) {  //o_clusterOK by:fj is not persistent, for session only
			p = identToPrefs.get(identity.getName());
			if (p == null) {
				p = new RamPreferences();
				identToPrefs.put(identity.getName(), p);
			}
		}
		return p;
	}

	@Override
	public void updatePreferencesFor(Preferences prefs, Identity identity) {
		//
	}
	
	

}