/*
* Copyright 2012 Red Hat, Inc. and/or its affiliates.
*
* Licensed 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
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.dashbuilder.scheduler;
import java.util.Iterator;
import org.dashbuilder.comparator.AbstractComparatorByCriteria;
import org.dashbuilder.comparator.ComparatorUtils;
/**
* Class used to compare scheduler tasks.
*/
public class SchedulerTaskComparator extends AbstractComparatorByCriteria {
// Sort criteria
public static final String TIME_TO_FIRE = "timeToFire";
public SchedulerTaskComparator() {
super();
}
public int compare(Object o1, Object o2) {
if (o1 instanceof SchedulerTask == false) return 1;
if (o2 instanceof SchedulerTask == false) return -1;
if (o1 == null) return 1;
if (o2 == null) return -1;
SchedulerTask entry1 = (SchedulerTask) o1;
SchedulerTask entry2 = (SchedulerTask) o2;
Iterator it = sortCriterias.iterator();
while (it.hasNext()) {
Object[] criteriaProps = (Object[]) it.next();
String criteriaId = (String) criteriaProps[0];
int ordering = (Integer) criteriaProps[1];
if (criteriaId.equals(TIME_TO_FIRE)) {
int compById = ComparatorUtils.compare(entry1.getMillisTimeToFire(), entry2.getMillisTimeToFire(), ordering);
if (compById != 0) return compById;
}
}
// Comparison gives equality.
return 0;
}
}