package org.apache.archiva.consumers.core.repository;
   
   /*
    * 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.common.utils.VersionComparator;
  import org.apache.archiva.common.utils.VersionUtil;
  import org.apache.archiva.metadata.repository.MetadataRepository;
  import org.apache.archiva.metadata.repository.MetadataRepositoryException;
  import org.apache.archiva.metadata.repository.RepositorySession;
  import org.apache.archiva.model.ArtifactReference;
  import org.apache.archiva.model.ProjectReference;
  import org.apache.archiva.model.VersionedReference;
  import org.apache.archiva.repository.ContentNotFoundException;
  import org.apache.archiva.repository.LayoutException;
  import org.apache.archiva.repository.ManagedRepositoryContent;
  import org.apache.archiva.repository.ReleaseScheme;
  import org.apache.archiva.repository.RepositoryException;
  import org.apache.archiva.repository.RepositoryRegistry;
  import org.apache.archiva.metadata.audit.RepositoryListener;
  import org.apache.archiva.repository.metadata.base.MetadataTools;
  import org.apache.archiva.repository.metadata.RepositoryMetadataException;
  
  import java.io.IOException;
  import java.nio.file.Files;
  import java.nio.file.Path;
  import java.nio.file.Paths;
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.List;
  
  /**
   * <p>
   * This will look in a single managed repository, and purge any snapshots that are present
   * that have a corresponding released version on the same repository.
   * </p>
   * <p>
   * So, if you have the following (presented in the m2/default layout form) ...
   * <pre>
   *   /com/foo/foo-tool/1.0-SNAPSHOT/foo-tool-1.0-SNAPSHOT.jar
   *   /com/foo/foo-tool/1.1-SNAPSHOT/foo-tool-1.1-SNAPSHOT.jar
   *   /com/foo/foo-tool/1.2.1-SNAPSHOT/foo-tool-1.2.1-SNAPSHOT.jar
   *   /com/foo/foo-tool/1.2.1/foo-tool-1.2.1.jar
   *   /com/foo/foo-tool/2.0-SNAPSHOT/foo-tool-2.0-SNAPSHOT.jar
   *   /com/foo/foo-tool/2.0/foo-tool-2.0.jar
   *   /com/foo/foo-tool/2.1-SNAPSHOT/foo-tool-2.1-SNAPSHOT.jar
   * </pre>
   * then the current highest ranked released (non-snapshot) version is 2.0, which means
   * the snapshots from 1.0-SNAPSHOT, 1.1-SNAPSHOT, 1.2.1-SNAPSHOT, and 2.0-SNAPSHOT can
   * be purged.  Leaving 2.1-SNAPSHOT in alone.
   */
  public class CleanupReleasedSnapshotsRepositoryPurge
      extends AbstractRepositoryPurge
  {
      private MetadataTools metadataTools;
  
      private RepositoryRegistry repositoryRegistry;
  
      public CleanupReleasedSnapshotsRepositoryPurge( ManagedRepositoryContent repository, MetadataTools metadataTools,
                                                      RepositoryRegistry repositoryRegistry,
                                                      RepositorySession repositorySession,
                                                      List<RepositoryListener> listeners )
      {
          super( repository, repositorySession, listeners );
          this.metadataTools = metadataTools;
          this.repositoryRegistry = repositoryRegistry;
      }
  
      @Override
      public void process( String path )
          throws RepositoryPurgeException
      {
          try
          {
              Path artifactFile = Paths.get( repository.getRepoRoot( ), path );
  
              if ( !Files.exists(artifactFile) )
              {
                  // Nothing to do here, file doesn't exist, skip it.
                  return;
              }
  
             ArtifactReference artifactRef = repository.toArtifactReference( path );
 
             if ( !VersionUtil.isSnapshot( artifactRef.getVersion( ) ) )
             {
                 // Nothing to do here, not a snapshot, skip it.
                 return;
             }
 
             ProjectReferenceerence.html#ProjectReference">ProjectReference reference = new ProjectReference( );
             reference.setGroupId( artifactRef.getGroupId( ) );
             reference.setArtifactId( artifactRef.getArtifactId( ) );
 
             // Gether the released versions
             List<String> releasedVersions = new ArrayList<>( );
 
             Collection<org.apache.archiva.repository.ManagedRepository> repos = repositoryRegistry.getManagedRepositories( );
             for ( org.apache.archiva.repository.ManagedRepository repo : repos )
             {
 
                 if ( repo.getActiveReleaseSchemes().contains( ReleaseScheme.RELEASE ))
                 {
                     try
                     {
                         ManagedRepositoryContent repoContent = repo.getContent();
                         for ( String version : repoContent.getVersions( reference ) )
                         {
                             if ( !VersionUtil.isSnapshot( version ) )
                             {
                                 releasedVersions.add( version );
                             }
                         }
                     }
                     catch ( RepositoryException e )
                     {
                         // swallow
                     }
                 }
             }
 
             Collections.sort( releasedVersions, VersionComparator.getInstance( ) );
 
             // Now clean out any version that is earlier than the highest released version.
             boolean needsMetadataUpdate = false;
 
             VersionedReferencerence.html#VersionedReference">VersionedReference versionRef = new VersionedReference( );
             versionRef.setGroupId( artifactRef.getGroupId( ) );
             versionRef.setArtifactId( artifactRef.getArtifactId( ) );
 
             MetadataRepository metadataRepository = repositorySession.getRepository( );
 
             if ( releasedVersions.contains( VersionUtil.getReleaseVersion( artifactRef.getVersion( ) ) ) )
             {
                 versionRef.setVersion( artifactRef.getVersion( ) );
                 repository.deleteVersion( versionRef );
 
                 for ( RepositoryListener listener : listeners )
                 {
                     listener.deleteArtifact( metadataRepository, repository.getId( ), artifactRef.getGroupId( ),
                         artifactRef.getArtifactId( ), artifactRef.getVersion( ),
                         artifactFile.getFileName().toString() );
                 }
                 metadataRepository.removeProjectVersion( repositorySession, repository.getId( ),
                     artifactRef.getGroupId( ), artifactRef.getArtifactId( ), artifactRef.getVersion( ) );
 
                 needsMetadataUpdate = true;
             }
 
             if ( needsMetadataUpdate )
             {
                 updateMetadata( artifactRef );
             }
         }
         catch ( LayoutException e )
         {
             log.debug( "Not processing file that is not an artifact: {}", e.getMessage( ) );
         }
         catch ( ContentNotFoundException e )
         {
             throw new RepositoryPurgeException( e.getMessage( ), e );
         }
         catch ( MetadataRepositoryException e )
         {
             log.error( "Could not remove metadata during cleanup of released snapshots of {}", path, e );
         }
     }
 
 
     /*
      * TODO: Uses a deprecated API, but if we use the API with location string, it does not work as expected
      * -> not sure what needs to be changed here.
      */
     @SuppressWarnings( "deprecation" )
     private void updateMetadata( ArtifactReference artifact )
     {
         VersionedReferencerence.html#VersionedReference">VersionedReference versionRef = new VersionedReference( );
         versionRef.setGroupId( artifact.getGroupId( ) );
         versionRef.setArtifactId( artifact.getArtifactId( ) );
         versionRef.setVersion( artifact.getVersion( ) );
 
         ProjectReferencerence.html#ProjectReference">ProjectReference projectRef = new ProjectReference( );
         projectRef.setGroupId( artifact.getGroupId( ) );
         projectRef.setArtifactId( artifact.getArtifactId( ) );
 
         try
         {
             metadataTools.updateMetadata( repository, versionRef );
         }
         catch ( ContentNotFoundException e )
         {
             // Ignore. (Just means we have no snapshot versions left to reference).
         }
         catch ( RepositoryMetadataException e )
         {
             // Ignore.
         }
         catch ( IOException e )
         {
             // Ignore.
         }
         catch ( LayoutException e )
         {
             // Ignore.
         }
 
         try
         {
             metadataTools.updateMetadata( repository, projectRef );
         }
         catch ( ContentNotFoundException e )
         {
             // Ignore. (Just means we have no snapshot versions left to reference).
         }
         catch ( RepositoryMetadataException e )
         {
             // Ignore.
         }
         catch ( IOException e )
         {
             // Ignore.
         }
         catch ( LayoutException e )
         {
             // Ignore.
         }
     }
 }