/**
* 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.portlets.search;
import java.io.Serializable;
import java.util.Comparator;
import org.jasig.services.persondir.IPersonAttributes;
/**
* DisplayNameComparator allows the sorting of people by display name.
*
*/
public class DisplayNameComparator implements Comparator<IPersonAttributes>, Serializable {
private static final long serialVersionUID = 1L;
@Override
public int compare(IPersonAttributes o1, IPersonAttributes o2) {
Object name1 = o1.getAttributeValue("displayName");
Object name2 = o2.getAttributeValue("displayName");
if (name1 == null && name2 == null) {
return 0;
} else if (name1 == null) {
return -1;
} else if (name2 == null) {
return 1;
} else {
return name1.toString().compareTo(name2.toString());
}
}
}