Source code

001package org.apache.archiva.admin.repository.utils;
002/*
003 * Licensed to the Apache Software Foundation (ASF) under one
004 * or more contributor license agreements.  See the NOTICE file
005 * distributed with this work for additional information
006 * regarding copyright ownership.  The ASF licenses this file
007 * to you under the Apache License, Version 2.0 (the
008 * "License"); you may not use this file except in compliance
009 * with the License.  You may obtain a copy of the License at
010 *
011 *   http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing,
014 * software distributed under the License is distributed on an
015 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
016 * KIND, either express or implied.  See the License for the
017 * specific language governing permissions and limitations
018 * under the License.
019 */
020
021import org.apache.archiva.admin.model.beans.AbstractRepository;
022
023import java.util.Comparator;
024
025/**
026 * @author Olivier Lamy
027 * @since 1.4-M1
028 */
029public class RepositoryComparator
030    implements Comparator<AbstractRepository>
031{
032    @Override
033    public int compare( AbstractRepository o1, AbstractRepository o2 )
034    {
035        if ( o1 == null && o2 == null )
036        {
037            return 0;
038        }
039
040        if ( o1 == null )
041        {
042            return -1;
043        }
044
045        if ( o2 == null )
046        {
047            return 1;
048        }
049
050        return o1.getId().compareToIgnoreCase( o2.getId() );
051    }
052}