package org.apache.maven.index;

 /*

  * 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 java.util.HashSet;

 import java.util.Set;

 import org.apache.maven.index.context.IndexingContext;

 /**

  * A special reusable filter, that filters the result set to unique Repository-GroupId-ArtifactId combination, leaving

  * out Version. There is a switch to make the Indexer-wide unique by ignoring repositories too.

  * 

  * @author cstamas

  * @deprecated Use {@link UniqueArtifactFilterPostprocessor} instead.

  */

 public class UniqueGAArtifactFilterPostprocessor

     implements ArtifactInfoFilter

 {

     private static final String VERSION_LATEST = "LATEST";

     private final boolean repositoriesIgnored;

     private final Set<String> gas = new HashSet<String>();

     public UniqueGAArtifactFilterPostprocessor( boolean repositoriesIgnored )

     {

         this.repositoriesIgnored = repositoriesIgnored;

     }

     public boolean accepts( IndexingContext ctx, ArtifactInfo ai )

     {

         String key = ai.groupId + ai.artifactId + ai.packaging + ai.classifier;

         if ( !repositoriesIgnored )

         {

             key = ai.repository + key;

         }

         if ( gas.contains( key ) )

         {

             return false;

         }

         else

         {

             gas.add( key );

             postprocess( ctx, ai );

             return true;

         }

     }

     public void postprocess( IndexingContext ctx, ArtifactInfo ai )

     {

         ai.version = VERSION_LATEST;

         if ( repositoriesIgnored )

         {

             ai.context = null;

             ai.repository = null;

         }

     }

 }