package org.apache.maven.shared.artifact.filter.resolve.transform;
   
   /*
    * 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.util.ArrayList;
  import java.util.Collection;
  import java.util.List;
  
  import org.apache.maven.shared.artifact.filter.resolve.AbstractFilter;
  import org.apache.maven.shared.artifact.filter.resolve.AndFilter;
  import org.apache.maven.shared.artifact.filter.resolve.ExclusionsFilter;
  import org.apache.maven.shared.artifact.filter.resolve.FilterTransformer;
  import org.apache.maven.shared.artifact.filter.resolve.OrFilter;
  import org.apache.maven.shared.artifact.filter.resolve.PatternExclusionsFilter;
  import org.apache.maven.shared.artifact.filter.resolve.PatternInclusionsFilter;
  import org.apache.maven.shared.artifact.filter.resolve.ScopeFilter;
  import org.apache.maven.shared.artifact.filter.resolve.TransformableFilter;
  import org.sonatype.aether.graph.DependencyFilter;
  import org.sonatype.aether.graph.DependencyNode;
  import org.sonatype.aether.util.filter.AndDependencyFilter;
  import org.sonatype.aether.util.filter.ExclusionsDependencyFilter;
  import org.sonatype.aether.util.filter.OrDependencyFilter;
  import org.sonatype.aether.util.filter.PatternExclusionsDependencyFilter;
  import org.sonatype.aether.util.filter.PatternInclusionsDependencyFilter;
  import org.sonatype.aether.util.filter.ScopeDependencyFilter;
  
  /**
   * FilterTransformer implementation for Sonatypes Aether
   * 
   * @author Robert Scholte  
   * @since 3.0
   */
  public class SonatypeAetherFilterTransformer
      implements FilterTransformer<DependencyFilter>
  {
      @Override
      public AndDependencyFilter transform( AndFilter filter )
      {
          Collection<DependencyFilter> filters = new ArrayList<DependencyFilter>( filter.getFilters().size() );
          for ( TransformableFilter dependencyFilter : filter.getFilters() )
          {
              filters.add( dependencyFilter.transform( this ) );
          }
          return new AndDependencyFilter( filters );
      }
  
      @Override
      public ExclusionsDependencyFilter transform( ExclusionsFilter filter )
      {
          return new ExclusionsDependencyFilter( filter.getExcludes() );
      }
      
      @Override
      public OrDependencyFilter transform( OrFilter filter )
      {
          Collection<DependencyFilter> filters = new ArrayList<DependencyFilter>( filter.getFilters().size() );
          for ( TransformableFilter dependencyFilter : filter.getFilters() )
          {
              filters.add( dependencyFilter.transform( this ) );
          }
          return new OrDependencyFilter( filters );
      }
      
      @Override
      public ScopeDependencyFilter transform( ScopeFilter filter )
      {
          return new ScopeDependencyFilter( filter.getIncluded(), filter.getExcluded() );
      }
      
      @Override
      public DependencyFilter transform( PatternExclusionsFilter filter )
      {
          return new PatternExclusionsDependencyFilter( filter.getExcludes() );
      }
      
      @Override
      public DependencyFilter transform( PatternInclusionsFilter filter )
      {
          return new PatternInclusionsDependencyFilter( filter.getIncludes() );
      }
      
      @Override
     public DependencyFilter transform( final AbstractFilter filter )
     {
         return new DependencyFilter()
         {
             @Override
             public boolean accept( DependencyNode node, List<DependencyNode> parents )
             {
                 return filter.accept( new SonatypeAetherNode( node ), null );
             }
         };
     }
 }