/**
* Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information regarding copyright ownership. Apereo
* licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use
* this file except in compliance with the License. You may obtain a copy of the License at the
* following location:
*
* <p>http://www.apache.org/licenses/LICENSE-2.0
*
* <p>Unless required by applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apereo.portal.events.aggr;
import java.util.Comparator;
/**
* Sorts {@link BaseAggregation} instaces by Date and Time
*
*/
public class BaseAggregationDateTimeComparator implements Comparator<BaseAggregation<?, ?>> {
public static final Comparator<BaseAggregation<?, ?>> INSTANCE =
new BaseAggregationDateTimeComparator();
@Override
public int compare(BaseAggregation<?, ?> o1, BaseAggregation<?, ?> o2) {
if (o1 == o2) {
return 0;
}
if (o1 == null) {
return -1;
}
final int dataCmp =
o1.getDateDimension().getDate().compareTo(o2.getDateDimension().getDate());
if (dataCmp != 0) {
return dataCmp;
}
return o1.getTimeDimension().getTime().compareTo(o2.getTimeDimension().getTime());
}
}