package org.apache.maven.artifact.ant;
   
   /*
    * 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.maven.artifact.Artifact;
  import org.apache.maven.artifact.ArtifactUtils;
  import org.apache.maven.artifact.factory.ArtifactFactory;
  import org.apache.maven.artifact.metadata.ArtifactMetadataSource;
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.artifact.resolver.ArtifactNotFoundException;
  import org.apache.maven.artifact.resolver.ArtifactResolutionException;
  import org.apache.maven.artifact.resolver.ArtifactResolutionResult;
  import org.apache.maven.artifact.resolver.ArtifactResolver;
  import org.apache.maven.artifact.versioning.InvalidVersionSpecificationException;
  import org.apache.maven.artifact.versioning.VersionRange;
  import org.apache.maven.project.artifact.MavenMetadataSource;
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.Project;
  import org.codehaus.plexus.PlexusContainerException;
  
  import java.util.Collections;
  import java.util.Iterator;
  import java.util.List;
  
  /**
   * Ant Wrapper for wagon provider installation.
   *
   * @author <a href="mailto:brett@apache.org">Brett Porter</a>
   * @version $Id: InstallWagonProviderTask.html 806929 2012-03-01 18:57:40Z hboutemy $
   */
  public class InstallWagonProviderTask
      extends AbstractArtifactWithRepositoryTask
  {
      private String groupId = "org.apache.maven.wagon";
  
      private String artifactId;
  
      private String version;
  
      public String getGroupId()
      {
          return groupId;
      }
  
      public void setGroupId( String groupId )
      {
          this.groupId = groupId;
      }
  
      public String getArtifactId()
      {
          return artifactId;
      }
  
      public void setArtifactId( String artifactId )
      {
          this.artifactId = artifactId;
      }
  
      public String getVersion()
      {
          return version;
      }
  
      public void setVersion( String version )
      {
          this.version = version;
      }
  
      public void doExecute()
      {
          VersionRange versionRange;
          try
          {
              versionRange = VersionRange.createFromVersionSpec( version );
          }
          catch ( InvalidVersionSpecificationException e )
          {
              throw new BuildException( "Unable to get extension '"
                                        + ArtifactUtils.versionlessKey( groupId, artifactId ) + "' because version '"
                                        + version + " is invalid: " + e.getMessage(), e );
          }
 
         ArtifactFactory factory = (ArtifactFactory) lookup( ArtifactFactory.ROLE );
         Artifact providerArtifact = factory.createExtensionArtifact( groupId, artifactId, versionRange );
 
         log( "Installing provider: " + providerArtifact );
 
         ArtifactResolutionResult result;
         try
         {
             MavenMetadataSource metadataSource = (MavenMetadataSource) lookup( ArtifactMetadataSource.ROLE );
             ArtifactResolver resolver = (ArtifactResolver) lookup( ArtifactResolver.ROLE );
             List<ArtifactRepository> remoteRepositories = createRemoteArtifactRepositories();
 
             result = resolver.resolveTransitively( Collections.singleton( providerArtifact ),
                                                    createDummyArtifact(), createLocalArtifactRepository(),
                                                    remoteRepositories, metadataSource, null );
         }
         catch ( ArtifactResolutionException e )
         {
             throw new BuildException( "Error downloading wagon provider from the remote repository: " + e.getMessage(),
                                       e );
         }
         catch ( ArtifactNotFoundException e )
         {
             throw new BuildException( "Unable to locate wagon provider in remote repository: " + e.getMessage(), e );
         }
 
         try
         {
             for ( Iterator<Artifact> i = result.getArtifacts().iterator(); i.hasNext(); )
             {
                 Artifact a = i.next();
 
                 getContainer().addJarResource( a.getFile() );
             }
         }
         catch ( PlexusContainerException e )
         {
             throw new BuildException( "Unable to locate wagon provider in remote repository", e );
         }
 
         log( "Protocols now supported: " + getSupportedProtocolsAsString(), Project.MSG_VERBOSE );
     }
 
 }