/**
* 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.layout.dlm;
import java.util.Comparator;
/**
* A comparator of fragment objects that sorts first by precedence value with highest number being
* higher and if equal it then sorts by fragment index with the lowest number having highest
* precedence since it is an indication of the fragments location within the config file. For those
* with equal precedence the one defined first when loading the file should take precedence.
*
* @since 2.5
*/
public class FragmentComparator implements Comparator<FragmentDefinition> {
public int compare(FragmentDefinition obj1, FragmentDefinition obj2) {
FragmentDefinition frag1 = (FragmentDefinition) obj1;
FragmentDefinition frag2 = (FragmentDefinition) obj2;
if (frag1.getPrecedence() == frag2.getPrecedence()) {
return frag1.getIndex() - frag2.getIndex();
} else {
return (int) (frag2.getPrecedence() - frag1.getPrecedence());
}
}
}