package org.apache.archiva.metadata.repository.storage.maven2;
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF 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
*
* 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.
*/
import org.apache.archiva.metadata.model.ArtifactMetadata;
import org.apache.maven.artifact.versioning.DefaultArtifactVersion;
import java.util.Comparator;
/**
* @author Olivier Lamy
* @since 1.4-M3
*/
public class ArtifactMetadataVersionComparator
implements Comparator<ArtifactMetadata>
{
public static ArtifactMetadataVersionComparator INSTANCE = new ArtifactMetadataVersionComparator();
@Override
public int compare( ArtifactMetadata o1, ArtifactMetadata o2 )
{
// sort by version (reverse), then ID
int result =
new DefaultArtifactVersion( o2.getVersion() ).compareTo( new DefaultArtifactVersion( o1.getVersion() ) );
return result != 0 ? result : o1.getId().compareTo( o2.getId() );
}
}