package org.apache.maven.plugin.dependency;
   
   /*
    * 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.net.MalformedURLException;
  import java.util.Iterator;
  import java.util.Set;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.installer.ArtifactInstallationException;
  import org.apache.maven.artifact.installer.ArtifactInstaller;
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.artifact.repository.ArtifactRepositoryFactory;
  import org.apache.maven.artifact.repository.layout.DefaultRepositoryLayout;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.dependency.utils.DependencyStatusSets;
  import org.apache.maven.plugin.dependency.utils.DependencyUtil;
  import org.apache.maven.plugin.dependency.utils.filters.DestFileFilter;
  import org.apache.maven.plugin.logging.Log;
  import org.apache.maven.shared.artifact.filter.collection.ArtifactsFilter;
  
  /**
   * Goal that copies the project dependencies from the repository to a defined
   * location.
   * 
   * @goal copy-dependencies
   * @requiresDependencyResolution test
   * @phase process-sources
   * @author <a href="mailto:brianf@apache.org">Brian Fox</a>
   * @version $Id: CopyDependenciesMojo.java 731252 2009-01-04 13:11:57Z bentmann $
   * @since 1.0
   */
  public class CopyDependenciesMojo
      extends AbstractFromDependenciesMojo
  {
  
      /**
       * @component
       */
      protected ArtifactInstaller installer;
  
      /**
       * @component
       */
      protected ArtifactRepositoryFactory repositoryFactory;
  
      /**
       * Main entry into mojo. Gets the list of dependencies and iterates through
       * calling copyArtifact.
       * 
       * @throws MojoExecutionException
       *             with a message if an error occurs.
       * 
       * @see #getDependencies
       * @see #copyArtifact(Artifact, boolean)
       */
      public void execute()
          throws MojoExecutionException
      {
          DependencyStatusSets dss = getDependencySets( this.failOnMissingClassifierArtifact );
          Set artifacts = dss.getResolvedDependencies();
  
      	if ( !useRepositoryLayout )
      	{
  	        for ( Iterator i = artifacts.iterator(); i.hasNext(); )
  	        {
  	    		copyArtifact( (Artifact) i.next(), this.stripVersion );
  	    	}
      	}
      	else
      	{
  			try {
  				ArtifactRepository targetRepository = repositoryFactory.createDeploymentArtifactRepository(
  						"local", 
  						outputDirectory.toURL().toExternalForm(), 
  						new DefaultRepositoryLayout(),
  						false /*uniqueVersion*/ );
  		        for ( Iterator i = artifacts.iterator(); i.hasNext(); )
  		        {
  					installArtifact( (Artifact) i.next(), targetRepository );
  	        	}
 			} 
 			catch ( MalformedURLException e ) 
 			{
 				throw new MojoExecutionException("Could not create outputDirectory repository", e);
 			}
         }
 
         artifacts = dss.getSkippedDependencies();
         for ( Iterator i = artifacts.iterator(); i.hasNext(); )
         {
             Artifact artifact = (Artifact) i.next();
             getLog().info( artifact.getFile().getName() + " already exists in destination." );
         }
     }
 
     private void installArtifact( Artifact artifact, ArtifactRepository targetRepository) 
     {
 		try
 		{
 			if ( "pom".equals( artifact.getType() ) ) 
 			{
 				installer.install( artifact.getFile(), artifact, targetRepository );
 	            installBaseSnapshot( artifact, targetRepository );
 			}
 			else
 			{
 	            installer.install( artifact.getFile(), artifact, targetRepository );
 	            installBaseSnapshot( artifact, targetRepository );
 
 	            if ( isCopyPom() )
 	            {
 		            Artifact pomArtifact = getResolvedPomArtifact( artifact );
 		            if ( pomArtifact.getFile() != null && pomArtifact.getFile().exists() )
 		            {
 		            	installer.install( pomArtifact.getFile(), pomArtifact, targetRepository );
 			            installBaseSnapshot( pomArtifact, targetRepository );
 		            }
 	            }
 			}
 		}
 		catch ( ArtifactInstallationException e ) 
 		{
 		    getLog().info( e.getMessage() );
 		}
 	}
 
 	private void installBaseSnapshot( Artifact artifact, ArtifactRepository targetRepository )
 			throws ArtifactInstallationException 
 	{
 		if ( artifact.isSnapshot() && !artifact.getBaseVersion().equals( artifact.getVersion() ) )
 		{
 			Artifact baseArtifact = this.factory.createArtifact( artifact.getGroupId(), artifact.getArtifactId(),
 		            artifact.getBaseVersion(), artifact.getScope(), artifact.getType() );
 		    installer.install( artifact.getFile(), baseArtifact, targetRepository );
 		}
 	}
 
 	/**
      * Copies the Artifact after building the destination file name if
      * overridden. This method also checks if the classifier is set and adds it
      * to the destination file name if needed.
      * 
      * @param artifact
      *            representing the object to be copied.
      * @param removeVersion
      *            specifies if the version should be removed from the file name
      *            when copying.
      * 
      * @throws MojoExecutionException
      *             with a message if an error occurs.
      * 
      * @see DependencyUtil#copyFile(File, File, Log)
      * @see DependencyUtil#getFormattedFileName(Artifact, boolean)
      */
     protected void copyArtifact( Artifact artifact, boolean removeVersion )
         throws MojoExecutionException
     {
 
         String destFileName = DependencyUtil.getFormattedFileName( artifact, removeVersion );
 
         File destDir;
         destDir = DependencyUtil.getFormattedOutputDirectory( useSubDirectoryPerType, useSubDirectoryPerArtifact,
                                                               useRepositoryLayout, stripVersion, outputDirectory,
                                                               artifact );
         File destFile = new File( destDir, destFileName );
 
         copyFile( artifact.getFile(), destFile );
         // Copy POM if asked
         if ( isCopyPom() )
         {
             // Create the pom
             Artifact pomArtifact = getResolvedPomArtifact( artifact );
             
             // Copy the pom
             if ( pomArtifact.getFile() != null && pomArtifact.getFile().exists() )
             {
                 File pomDestFile = new File( destDir, DependencyUtil.getFormattedFileName( pomArtifact, removeVersion ) );
                 copyFile( pomArtifact.getFile(), pomDestFile );
             }
         }
     }
 
 	protected Artifact getResolvedPomArtifact( Artifact artifact ) {
 		Artifact pomArtifact = this.factory.createArtifact( artifact.getGroupId(), artifact.getArtifactId(),
 		                                                    artifact.getVersion(), "", "pom" );
 		// Resolve the pom artifact using repos
 		try
 		{
 		    this.resolver.resolve( pomArtifact, this.remoteRepos, this.local );
 		}
 		catch ( Exception e )
 		{
 		    getLog().info( e.getMessage() );
 		}
 		return pomArtifact;
 	}
 
     protected ArtifactsFilter getMarkedArtifactFilter()
     {
         return new DestFileFilter( this.overWriteReleases, this.overWriteSnapshots, this.overWriteIfNewer,
                                    this.useSubDirectoryPerArtifact, this.useSubDirectoryPerType,
                                    this.useRepositoryLayout, this.stripVersion, this.outputDirectory );
     }
 }