package org.apache.maven.ant.tasks;
   
   /*
    * 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.ant.tasks.support.SpecificScopesArtifactFilter;
  import org.apache.maven.ant.tasks.support.TypesArtifactFilter;
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.artifact.repository.ArtifactRepository;
  import org.apache.maven.artifact.resolver.filter.AndArtifactFilter;
  import org.apache.maven.plugins.antrun.AntRunMojo;
  import org.apache.maven.project.MavenProject;
  import org.apache.tools.ant.BuildException;
  import org.apache.tools.ant.Task;
  import org.apache.tools.ant.types.FileSet;
  
  import java.io.File;
  import java.util.LinkedHashSet;
  import java.util.Set;
  
  /**
   * Ant task which create a fileset for each dependency in a Maven project, and a
   * fileset containing all selected dependencies.
   *
   * @author pgier
   */
  public class DependencyFilesetsTask
      extends Task
  {
  
      /**
       * The default project dependencies id.
       */
      public static final String DEFAULT_PROJECT_DEPENDENCIES_ID = "maven.project.dependencies";
  
      /**
       * The project ref Id of the project being used.
       */
      private String mavenProjectId = AntRunMojo.DEFAULT_MAVEN_PROJECT_REFID;
  
      /**
       * The id to store the dependencies fileset.
       */
      private String projectDependenciesId = DEFAULT_PROJECT_DEPENDENCIES_ID;
  
      /**
       * @return {@link #projectDependenciesId}
       */
      public String getProjectDependenciesId()
      {
          return projectDependenciesId;
      }
  
      /**
       * @param projectDependenciesId {@link #projectDependenciesId}
       */
      public void setProjectDependenciesId( String projectDependenciesId )
      {
          this.projectDependenciesId = projectDependenciesId;
      }
  
      /**
       * The string to prepend to all dependency filesets.
       */
      private String prefix = "";
  
      /**
       * A comma separated list of artifact types to include.
       */
      private String types = "";
  
      /**
       * A comma separated list of dependency scopes to include.
       */
      private String scopes = "";
  
      /**
       * Create instance.
       */
      public DependencyFilesetsTask()
      {
  
      }
 
     /** {@inheritDoc} */
     @Override
     public void execute()
     {
         if ( this.getProject().getReference( mavenProjectId ) == null )
         {
             throw new BuildException( "Maven project reference not found: " + mavenProjectId );
         }
 
         MavenProject mavenProject = this.getProject().getReference( "maven.project" );
 
         // Add filesets for depenedency artifacts
         Set<Artifact> depArtifacts = filterArtifacts( mavenProject.getArtifacts() );
 
         FileSet dependenciesFileSet = new FileSet();
         dependenciesFileSet.setProject( getProject() );
         ArtifactRepository localRepository = getProject().getReference( "maven.local.repository" );
         dependenciesFileSet.setDir( new File( localRepository.getBasedir() ) );
 
         if ( depArtifacts.isEmpty() )
         {
             // For performance reasons in case of huge local repo, tell Ant to include a single thing, otherwise the
             // whole directory is scanned (even though ** is excluded).
             dependenciesFileSet.createInclude().setName( "." );
             dependenciesFileSet.createExclude().setName( "**" );
         }
 
         for ( Artifact artifact : depArtifacts )
         {
             String relativeArtifactPath = localRepository.pathOf( artifact );
             dependenciesFileSet.createInclude().setName( relativeArtifactPath );
 
             String fileSetName = getPrefix() + artifact.getDependencyConflictId();
 
             FileSet singleArtifactFileSet = new FileSet();
             singleArtifactFileSet.setProject( getProject() );
             singleArtifactFileSet.setFile( artifact.getFile() );
             getProject().addReference( fileSetName, singleArtifactFileSet );
         }
 
         getProject().addReference( ( getPrefix() + projectDependenciesId ), dependenciesFileSet );
     }
 
     /**
      * @return {@link #mavenProjectId}
      */
     public String getMavenProjectId()
     {
         return mavenProjectId;
     }
 
     /**
      * @param mavenProjectId {@link #mavenProjectId}
      */
     public void setMavenProjectId( String mavenProjectId )
     {
         this.mavenProjectId = mavenProjectId;
     }
 
     /**
      * @return {@link #prefix}
      */
     public String getPrefix()
     {
         if ( prefix == null )
         {
             prefix = "";
         }
         return prefix;
     }
 
     /**
      * Prefix to be added to each of the dependency filesets. Default is empty string.
      * @param prefix {@link #prefix}
      */
     public void setPrefix( String prefix )
     {
         this.prefix = prefix;
     }
 
     /**
      * @return {@link #types}
      */
     public String getTypes()
     {
         return types;
     }
 
     /**
      * @param types {@link #types}
      */
     public void setTypes( String types )
     {
         this.types = types;
     }
 
     /**
      * @return {@link #scopes}
      */
     public String getScopes()
     {
         return scopes;
     }
 
     /**
      * @param scopes {@link #scopes}
      */
     public void setScopes( String scopes )
     {
         this.scopes = scopes;
     }
 
     /**
      * Filter a set of artifacts using the scopes and type filters.
      *
      * @param artifacts {@link Artifact} set.
      * @return The set of filtered artifacts.
      */
     public Set<Artifact> filterArtifacts( Set<Artifact> artifacts )
     {
         if ( scopes == null )
         {
             scopes = "";
         }
         if ( types == null )
         {
             types = "";
         }
 
         if ( scopes.equals( "" ) && types.equals( "" ) )
         {
             return artifacts;
         }
 
         AndArtifactFilter filter = new AndArtifactFilter();
         if ( !scopes.equals( "" ) )
         {
             filter.add( new SpecificScopesArtifactFilter( getScopes() ) );
         }
         if ( !types.equals( "" ) )
         {
             filter.add( new TypesArtifactFilter( getTypes() ) );
         }
 
         Set<Artifact> artifactsResult = new LinkedHashSet<>();
         for ( Artifact artifact : artifacts )
         {
             if ( filter.include( artifact ) )
             {
                 artifactsResult.add( artifact );
             }
         }
         return artifactsResult;
     }
 }