package org.apache.maven.plugins.gpg;
   
   /*
    * 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.io.File;
  import java.io.IOException;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.metadata.AbstractArtifactMetadata;
  import org.apache.maven.artifact.metadata.ArtifactMetadata;
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.artifact.repository.metadata.RepositoryMetadataStoreException;
  import org.codehaus.plexus.util.FileUtils;
  
  /**
   * @author dkulp
   *
   */
  public class AscArtifactMetadata
      extends AbstractArtifactMetadata implements org.apache.maven.shared.transfer.metadata.ArtifactMetadata  
  {
  
      private final File file;
  
      private final boolean isPom;
  
      public AscArtifactMetadata( Artifact artifact, File file, boolean isPom )
      {
          super( artifact );
          this.file = file;
          this.isPom = isPom;
      }
  
      @Override
      public String getBaseVersion()
      {
          return artifact.getBaseVersion();
      }
  
      @Override
      public Object getKey()
      {
          return "gpg signature " + artifact.getGroupId() + ":" + artifact.getArtifactId() + ":" + artifact.getType()
              + ":" + artifact.getClassifier() + ( isPom ? ":pom" : "" );
      }
  
      private String getFilename()
      {
          StringBuilder buf = new StringBuilder( 128 );
          buf.append( getArtifactId() );
          buf.append( "-" ).append( artifact.getVersion() );
          if ( isPom )
          {
              buf.append( ".pom" );
          }
          else
          {
              if ( artifact.getClassifier() != null && !"".equals( artifact.getClassifier() ) )
              {
                  buf.append( "-" ).append( artifact.getClassifier() );
              }
              buf.append( "." ).append( artifact.getArtifactHandler().getExtension() );
          }
          buf.append( ".asc" );
          return buf.toString();
      }
  
      @Override
      public String getLocalFilename( ArtifactRepository repository )
      {
          return getFilename();
      }
  
      @Override
      public String getRemoteFilename()
      {
          return getFilename();
      }
  
      @Override
      public void merge( ArtifactMetadata metadata )
      {
         merge( (AscArtifactMetadata) metadata );
     }
 
     @Override
     public void merge( org.apache.maven.repository.legacy.metadata.ArtifactMetadata metadata )
     {
         merge( (AscArtifactMetadata) metadata );
     }
     
     private void merge( AscArtifactMetadata metadata )
     {
         if ( !metadata.file.equals( file ) )
         {
             throw new IllegalStateException( "Cannot add two different pieces of metadata for: " + getKey() );
         } 
     }
 
     @Override
     public void storeInLocalRepository( ArtifactRepository localRepository, ArtifactRepository remoteRepository )
         throws RepositoryMetadataStoreException
     {
         File destination =
             new File( localRepository.getBasedir(), localRepository.pathOfLocalRepositoryMetadata( this,
                                                                                                    remoteRepository ) );
 
         try
         {
             FileUtils.copyFile( file, destination );
         }
         catch ( IOException e )
         {
             throw new RepositoryMetadataStoreException( "Error copying ASC to the local repository.", e );
         }
     }
 
     @Override
     public boolean storedInArtifactVersionDirectory()
     {
         return true;
     }
 
     @Override
     public String toString()
     {
         return getFilename();
     }
 
     @Override
     public File getFile()
     {
         return file;
     }
 
 }