package org.apache.maven.shared.transfer.metadata.internal;
   
   /*
    * 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.util.Map;
  
  import org.apache.maven.artifact.metadata.ArtifactMetadata;
  import org.apache.maven.artifact.repository.metadata.RepositoryMetadata;
  import org.eclipse.aether.metadata.AbstractMetadata;
  import org.eclipse.aether.metadata.Metadata;
  
  /**
   * A MetadataBridge for Maven 3.1 
   * @author Robert Scholte
   */
  public class Maven31MetadataBridge extends AbstractMetadata implements Metadata
  {
      private ArtifactMetadata metadata;
      
      private File file;
      
      public Maven31MetadataBridge( ArtifactMetadata metadata )
      {
          this.metadata = metadata;
      }
  
      @Override
      public String getGroupId()
      {
          return emptify( metadata.getGroupId() );
      }
  
      @Override
      public String getArtifactId()
      {
          return metadata.storedInGroupDirectory() ? "" : emptify( metadata.getArtifactId() );
      }
  
      @Override
      public String getVersion()
      {
          return metadata.storedInArtifactVersionDirectory() ? emptify( metadata.getBaseVersion() ) : "";
      }
  
      @Override
      public String getType()
      {
          return metadata.getRemoteFilename();
      }
  
      private String emptify( String string )
      {
          return ( string != null ) ? string : "";
      }
  
      @Override
      public File getFile()
      {
          return file;
      }
      
      @Override
      public Nature getNature()
      {
          if ( metadata instanceof RepositoryMetadata )
          {
              switch ( ( (RepositoryMetadata) metadata ).getNature() )
              {
                  case RepositoryMetadata.RELEASE_OR_SNAPSHOT:
                      return Nature.RELEASE_OR_SNAPSHOT;
                  case RepositoryMetadata.SNAPSHOT:
                      return Nature.SNAPSHOT;
                  default:
                      return Nature.RELEASE;
              }
          }
          else
          {
              return Nature.RELEASE;
          }
      }
 
     @Override
     public Map<String, String> getProperties()
     {
         return copyProperties( null );
     }
 }