/**
* 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.
* <p>
*/
package org.olat.commons.calendar.model;
import java.util.Comparator;
import org.olat.commons.calendar.CalendarManager;
import org.olat.commons.calendar.ui.components.KalendarRenderWrapper;
public class KalendarComparator implements Comparator {
private static final KalendarComparator INSTANCE = new KalendarComparator();
public static final KalendarComparator getInstance() { return INSTANCE; }
public int compare(Object arg0, Object arg1) {
KalendarRenderWrapper calendar0 = (KalendarRenderWrapper)arg0;
KalendarRenderWrapper calendar1 = (KalendarRenderWrapper)arg1;
// if of the same type, order by display name
if (calendar0.getKalendar().getType() == calendar1.getKalendar().getType())
return calendar0.getKalendarConfig().getDisplayName().compareTo(
calendar1.getKalendarConfig().getDisplayName());
// if of different type, order by type
if (calendar0.getKalendar().getType() == CalendarManager.TYPE_USER) return -1; // TYPE_USER is displayed first
if (calendar0.getKalendar().getType() == CalendarManager.TYPE_GROUP) return +1; // TYPE GROUP is displayed last
if (calendar1.getKalendar().getType() == CalendarManager.TYPE_USER) return +1;
else return -1;
}
}