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 ArtifactMetadataVersionComparatoraven2/ArtifactMetadataVersionComparator.html#ArtifactMetadataVersionComparator">ArtifactMetadataVersionComparator INSTANCE = new ArtifactMetadataVersionComparator();
  
      @Override
      public int compare( ArtifactMetadata./../../../../../org/apache/archiva/metadata/model/ArtifactMetadata.html#ArtifactMetadata">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() );
      }
  }