package org.apache.maven.plugins.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.io.IOException;
  import java.lang.reflect.Field;
  import java.util.List;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.execution.MavenSession;
  import org.apache.maven.plugin.AbstractMojo;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugin.MojoFailureException;
  import org.apache.maven.plugins.annotations.Component;
  import org.apache.maven.plugins.annotations.Parameter;
  import org.apache.maven.plugins.dependency.utils.DependencySilentLog;
  import org.apache.maven.project.DefaultProjectBuildingRequest;
  import org.apache.maven.project.MavenProject;
  import org.apache.maven.project.ProjectBuildingRequest;
  import org.codehaus.plexus.archiver.ArchiverException;
  import org.codehaus.plexus.archiver.UnArchiver;
  import org.codehaus.plexus.archiver.manager.ArchiverManager;
  import org.codehaus.plexus.archiver.manager.NoSuchArchiverException;
  import org.codehaus.plexus.archiver.zip.ZipUnArchiver;
  import org.codehaus.plexus.components.io.filemappers.FileMapper;
  import org.codehaus.plexus.components.io.fileselectors.IncludeExcludeFileSelector;
  import org.codehaus.plexus.util.FileUtils;
  import org.codehaus.plexus.util.ReflectionUtils;
  import org.codehaus.plexus.util.StringUtils;
  import org.sonatype.plexus.build.incremental.BuildContext;
  
  /**
   * @author <a href="mailto:brianf@apache.org">Brian Fox</a>
   */
  public abstract class AbstractDependencyMojo
      extends AbstractMojo
  {
      /**
       * To look up Archiver/UnArchiver implementations
       */
      @Component
      private ArchiverManager archiverManager;
  
  
      /**
       * For IDE build support
       */
      @Component
      private BuildContext buildContext;
  
      /**
       * Skip plugin execution only during incremental builds (e.g. triggered from M2E).
       * 
       * @since 3.4.0
       * @see #skip
       */
      @Parameter( defaultValue = "false" )
      private boolean skipDuringIncrementalBuild;
  
      /**
       * <p>
       * will use the jvm chmod, this is available for user and all level group level will be ignored
       * </p>
       * <b>since 2.6 is on by default</b>
       * 
       * @since 2.5.1
       */
      @Parameter( property = "dependency.useJvmChmod", defaultValue = "true" )
      private boolean useJvmChmod = true;
  
      /**
       * ignore to set file permissions when unpacking a dependency
       * 
       * @since 2.7
       */
      @Parameter( property = "dependency.ignorePermissions", defaultValue = "false" )
      private boolean ignorePermissions;
  
      /**
       * POM
      */
     @Parameter( defaultValue = "${project}", readonly = true, required = true )
     private MavenProject project;
 
     /**
      * Remote repositories which will be searched for artifacts.
      */
     @Parameter( defaultValue = "${project.remoteArtifactRepositories}", readonly = true, required = true )
     private List<ArtifactRepository> remoteRepositories;
 
     /**
      * Remote repositories which will be searched for plugins.
      */
     @Parameter( defaultValue = "${project.pluginArtifactRepositories}", readonly = true, required = true )
     private List<ArtifactRepository> remotePluginRepositories;
 
     /**
      * Contains the full list of projects in the reactor.
      */
     @Parameter( defaultValue = "${reactorProjects}", readonly = true )
     protected List<MavenProject> reactorProjects;
 
     /**
      * The Maven session
      */
     @Parameter( defaultValue = "${session}", readonly = true, required = true )
     protected MavenSession session;
 
     /**
      * If the plugin should be silent.
      *
      * @since 2.0
      */
     @Parameter( property = "silent", defaultValue = "false" )
     private boolean silent;
 
     /**
      * Output absolute filename for resolved artifacts
      *
      * @since 2.0
      */
     @Parameter( property = "outputAbsoluteArtifactFilename", defaultValue = "false" )
     protected boolean outputAbsoluteArtifactFilename;
 
     /**
      * Skip plugin execution completely.
      *
      * @since 2.7
      */
     @Parameter( property = "mdep.skip", defaultValue = "false" )
     private boolean skip;
 
     // Mojo methods -----------------------------------------------------------
 
     /*
      * @see org.apache.maven.plugin.Mojo#execute()
      */
     @Override
     public final void execute()
         throws MojoExecutionException, MojoFailureException
     {
         if ( isSkip() )
         {
             getLog().info( "Skipping plugin execution" );
             return;
         }
 
         doExecute();
     }
 
     /**
      * @throws MojoExecutionException {@link MojoExecutionException}
      * @throws MojoFailureException {@link MojoFailureException}
      */
     protected abstract void doExecute()
         throws MojoExecutionException, MojoFailureException;
 
     /**
      * @return Returns the archiverManager.
      */
     public ArchiverManager getArchiverManager()
     {
         return this.archiverManager;
     }
 
     /**
      * Does the actual copy of the file and logging.
      *
      * @param artifact represents the file to copy.
      * @param destFile file name of destination file.
      * @throws MojoExecutionException with a message if an error occurs.
      */
     protected void copyFile( File artifact, File destFile )
         throws MojoExecutionException
     {
         try
         {
             getLog().info( "Copying "
                 + ( this.outputAbsoluteArtifactFilename ? artifact.getAbsolutePath() : artifact.getName() ) + " to "
                 + destFile );
 
             if ( artifact.isDirectory() )
             {
                 // usual case is a future jar packaging, but there are special cases: classifier and other packaging
                 throw new MojoExecutionException( "Artifact has not been packaged yet. When used on reactor artifact, "
                     + "copy should be executed after packaging: see MDEP-187." );
             }
 
             FileUtils.copyFile( artifact, destFile );
             buildContext.refresh( destFile );
         }
         catch ( IOException e )
         {
             throw new MojoExecutionException( "Error copying artifact from " + artifact + " to " + destFile, e );
         }
     }
 
     /**
      * @param artifact {@link Artifact}
      * @param location The location.
      * @param encoding The encoding.
      * @param fileMappers {@link FileMapper}s to be used for rewriting each target path, or {@code null} if no rewriting
      *                    shall happen.
      * @throws MojoExecutionException in case of an error.
      */
     protected void unpack( Artifact artifact, File location, String encoding, FileMapper[] fileMappers )
         throws MojoExecutionException
     {
         unpack( artifact, location, null, null, encoding, fileMappers );
     }
 
     /**
      * Unpacks the archive file.
      *
      * @param artifact File to be unpacked.
      * @param location Location where to put the unpacked files.
      * @param includes Comma separated list of file patterns to include i.e. <code>**&#47;.xml,
      *                 **&#47;*.properties</code>
      * @param excludes Comma separated list of file patterns to exclude i.e. <code>**&#47;*.xml,
      *                 **&#47;*.properties</code>
      * @param encoding Encoding of artifact. Set {@code null} for default encoding.
      * @param fileMappers {@link FileMapper}s to be used for rewriting each target path, or {@code null} if no rewriting
      *                    shall happen.
      * @throws MojoExecutionException In case of errors.
      */
     protected void unpack( Artifact artifact, File location, String includes, String excludes, String encoding,
                            FileMapper[] fileMappers ) throws MojoExecutionException
     {
         unpack( artifact, artifact.getType(), location, includes, excludes, encoding, fileMappers );
     }
 
     /**
      * @param artifact {@link Artifact}
      * @param type The type.
      * @param location The location.
      * @param includes includes list.
      * @param excludes excludes list.
      * @param encoding the encoding.
      * @param fileMappers {@link FileMapper}s to be used for rewriting each target path, or {@code null} if no rewriting
      *                    shall happen.
      * @throws MojoExecutionException in case of an error.
      */
     protected void unpack( Artifact artifact, String type, File location, String includes, String excludes,
                            String encoding, FileMapper[] fileMappers )
         throws MojoExecutionException
     {
         File file = artifact.getFile();
         try
         {
             logUnpack( file, location, includes, excludes );
 
             location.mkdirs();
             if ( !location.exists() )
             {
                 throw new MojoExecutionException( "Location to write unpacked files to could not be created: "
                     + location );
             }
 
             if ( file.isDirectory() )
             {
                 // usual case is a future jar packaging, but there are special cases: classifier and other packaging
                 throw new MojoExecutionException( "Artifact has not been packaged yet. When used on reactor artifact, "
                     + "unpack should be executed after packaging: see MDEP-98." );
             }
 
             UnArchiver unArchiver;
 
             try
             {
                 unArchiver = archiverManager.getUnArchiver( type );
                 getLog().debug( "Found unArchiver by type: " + unArchiver );
             }
             catch ( NoSuchArchiverException e )
             {
                 unArchiver = archiverManager.getUnArchiver( file );
                 getLog().debug( "Found unArchiver by extension: " + unArchiver );
             }
 
             if ( encoding != null && unArchiver instanceof ZipUnArchiver )
             {
                 ( (ZipUnArchiver) unArchiver ).setEncoding( encoding );
                 getLog().info( "Unpacks '" + type + "' with encoding '" + encoding + "'." );
             }
 
             unArchiver.setIgnorePermissions( ignorePermissions );
 
             unArchiver.setSourceFile( file );
 
             unArchiver.setDestDirectory( location );
 
             if ( StringUtils.isNotEmpty( excludes ) || StringUtils.isNotEmpty( includes ) )
             {
                 // Create the selectors that will filter
                 // based on include/exclude parameters
                 // MDEP-47
                 IncludeExcludeFileSelector[] selectors =
                     new IncludeExcludeFileSelector[] { new IncludeExcludeFileSelector() };
 
                 if ( StringUtils.isNotEmpty( excludes ) )
                 {
                     selectors[0].setExcludes( excludes.split( "," ) );
                 }
 
                 if ( StringUtils.isNotEmpty( includes ) )
                 {
                     selectors[0].setIncludes( includes.split( "," ) );
                 }
 
                 unArchiver.setFileSelectors( selectors );
             }
             if ( this.silent )
             {
                 silenceUnarchiver( unArchiver );
             }
 
             unArchiver.setFileMappers( fileMappers );
 
             unArchiver.extract();
         }
         catch ( NoSuchArchiverException e )
         {
             throw new MojoExecutionException( "Unknown archiver type", e );
         }
         catch ( ArchiverException e )
         {
             throw new MojoExecutionException( "Error unpacking file: " + file + " to: " + location, e );
         }
         buildContext.refresh( location );
     }
 
     private void silenceUnarchiver( UnArchiver unArchiver )
     {
         // dangerous but handle any errors. It's the only way to silence the unArchiver.
         try
         {
             Field field = ReflectionUtils.getFieldByNameIncludingSuperclasses( "logger", unArchiver.getClass() );
 
             field.setAccessible( true );
 
             field.set( unArchiver, this.getLog() );
         }
         catch ( Exception e )
         {
             // was a nice try. Don't bother logging because the log is silent.
         }
     }
 
     /**
      * @return Returns a new ProjectBuildingRequest populated from the current session and the current project remote
      *         repositories, used to resolve artifacts.
      */
     public ProjectBuildingRequest newResolveArtifactProjectBuildingRequest()
     {
         return newProjectBuildingRequest( remoteRepositories );
     }
 
     /**
      * @return Returns a new ProjectBuildingRequest populated from the current session and the current project remote
      *         repositories, used to resolve plugins.
      */
     protected ProjectBuildingRequest newResolvePluginProjectBuildingRequest()
     {
         return newProjectBuildingRequest( remotePluginRepositories );
     }
 
     private ProjectBuildingRequest newProjectBuildingRequest( List<ArtifactRepository> repositories )
     {
         ProjectBuildingRequest buildingRequest =
             new DefaultProjectBuildingRequest( session.getProjectBuildingRequest() );
 
         buildingRequest.setRemoteRepositories( repositories );
 
         return buildingRequest;
     }
 
     /**
      * @return Returns the project.
      */
     public MavenProject getProject()
     {
         return this.project;
     }
 
     /**
      * @param archiverManager The archiverManager to set.
      */
     public void setArchiverManager( ArchiverManager archiverManager )
     {
         this.archiverManager = archiverManager;
     }
 
     /**
      * @return {@link #useJvmChmod}
      */
     public boolean isUseJvmChmod()
     {
         return useJvmChmod;
     }
 
     /**
      * @param useJvmChmod {@link #useJvmChmod}
      */
     public void setUseJvmChmod( boolean useJvmChmod )
     {
         this.useJvmChmod = useJvmChmod;
     }
 
     /**
      * @return {@link #skip}
      */
     public boolean isSkip()
     {
         if ( skipDuringIncrementalBuild && buildContext.isIncremental() )
         {
             return true;
         }
         return skip;
     }
 
     /**
      * @param skip {@link #skip}
      */
     public void setSkip( boolean skip )
     {
         this.skip = skip;
     }
 
     /**
      * @return {@link #silent}
      */
     protected final boolean isSilent()
     {
         return silent;
     }
 
     /**
      * @param silent {@link #silent}
      */
     public void setSilent( boolean silent )
     {
         this.silent = silent;
         if ( silent )
         {
             setLog( new DependencySilentLog() );
         }
     }
 
     private void logUnpack( File file, File location, String includes, String excludes )
     {
         if ( !getLog().isInfoEnabled() )
         {
             return;
         }
 
         StringBuilder msg = new StringBuilder();
         msg.append( "Unpacking " );
         msg.append( file );
         msg.append( " to " );
         msg.append( location );
 
         if ( includes != null && excludes != null )
         {
             msg.append( " with includes \"" );
             msg.append( includes );
             msg.append( "\" and excludes \"" );
             msg.append( excludes );
             msg.append( "\"" );
         }
         else if ( includes != null )
         {
             msg.append( " with includes \"" );
             msg.append( includes );
             msg.append( "\"" );
         }
         else if ( excludes != null )
         {
             msg.append( " with excludes \"" );
             msg.append( excludes );
             msg.append( "\"" );
         }
 
         getLog().info( msg.toString() );
     }
 }