package org.apache.maven.plugins.dependency.utils.filters;
   
   /*
    * 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.LinkedHashSet;
  import java.util.Set;
  
  import org.apache.maven.artifact.Artifact;
  import org.apache.maven.plugin.MojoExecutionException;
  import org.apache.maven.plugins.dependency.fromConfiguration.ArtifactItem;
  import org.apache.maven.plugins.dependency.utils.markers.MarkerHandler;
  import org.apache.maven.shared.artifact.filter.collection.AbstractArtifactsFilter;
  import org.apache.maven.shared.artifact.filter.collection.ArtifactFilterException;
  
  /**
   * @author <a href="mailto:brianf@apache.org">Brian Fox</a>
   */
  public class MarkerFileFilter
      extends AbstractArtifactsFilter
      implements ArtifactItemFilter
  {
  
      private boolean overWriteReleases;
  
      private boolean overWriteSnapshots;
  
      private boolean overWriteIfNewer;
  
      /**
       * The handler.
       */
      protected final MarkerHandler handler;
  
      /**
       * @param overWriteReleases true/false.
       * @param overWriteSnapshots true/false.
       * @param overWriteIfNewer true/false.
       * @param handler {@link MarkerHandler}
       */
      public MarkerFileFilter( boolean overWriteReleases, boolean overWriteSnapshots, boolean overWriteIfNewer,
                               MarkerHandler handler )
      {
          this.overWriteReleases = overWriteReleases;
          this.overWriteSnapshots = overWriteSnapshots;
          this.overWriteIfNewer = overWriteIfNewer;
          this.handler = handler;
      }
  
      /*
       * (non-Javadoc)
       * @see org.apache.mojo.dependency.utils.filters.ArtifactsFilter#filter(java.util.Set,
       * org.apache.maven.plugin.logging.Log)
       */
      @Override
      public Set<Artifact> filter( Set<Artifact> artifacts )
          throws ArtifactFilterException
      {
          Set<Artifact> result = new LinkedHashSet<>();
  
          for ( Artifact artifact : artifacts )
          {
              if ( isArtifactIncluded( new ArtifactItem( artifact ) ) )
              {
                  result.add( artifact );
              }
          }
          return result;
      }
  
      @Override
      public boolean isArtifactIncluded( ArtifactItem item )
          throws ArtifactFilterException
      {
          Artifact artifact = item.getArtifact();
  
          boolean overWrite = ( artifact.isSnapshot() && this.overWriteSnapshots )
              || ( !artifact.isSnapshot() && this.overWriteReleases );
  
          handler.setArtifact( artifact );
  
          try
          {
             return overWrite || !handler.isMarkerSet() || ( overWriteIfNewer && handler.isMarkerOlder( artifact ) );
         }
         catch ( MojoExecutionException e )
         {
             throw new ArtifactFilterException( e.getMessage(), e );
         }
     }
 
     /**
      * @return Returns the overWriteReleases.
      */
     public boolean isOverWriteReleases()
     {
         return this.overWriteReleases;
     }
 
     /**
      * @param overWriteReleases The overWriteReleases to set.
      */
     public void setOverWriteReleases( boolean overWriteReleases )
     {
         this.overWriteReleases = overWriteReleases;
     }
 
     /**
      * @return Returns the overWriteSnapshots.
      */
     public boolean isOverWriteSnapshots()
     {
         return this.overWriteSnapshots;
     }
 
     /**
      * @param overWriteSnapshots The overWriteSnapshots to set.
      */
     public void setOverWriteSnapshots( boolean overWriteSnapshots )
     {
         this.overWriteSnapshots = overWriteSnapshots;
     }
 
     /**
      * @return Returns the overWriteIfNewer.
      */
     public boolean isOverWriteIfNewer()
     {
         return this.overWriteIfNewer;
     }
 
     /**
      * @param overWriteIfNewer The overWriteIfNewer to set.
      */
     public void setOverWriteIfNewer( boolean overWriteIfNewer )
     {
         this.overWriteIfNewer = overWriteIfNewer;
     }
 }