package org.apache.maven.plugins.shade.filter;
   
   /*
    * 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.codehaus.plexus.util.SelectorUtils;
  
  import java.io.File;
  import java.util.HashSet;
  import java.util.Collections;
  import java.util.Set;
  
  import org.apache.maven.plugins.shade.mojo.ArchiveFilter;
  
  /**
   * @author David Blevins
   */
  /**
   * @author kama
   *
   */
  public class SimpleFilter
      implements Filter
  {
  
      private Set<File> jars;
  
      private Set<String> includes;
  
      private Set<String> excludes;
  
      private boolean excludeDefaults = true;
  
      /**
       * @deprecated As of release 3.2.2, replaced by {@link #SimpleFilter(Set, ArchiveFilter)}}
       * @param jars set of {@link File}s.
       * @param includes set of includes.
       * @param excludes set of excludes.
       */
      @Deprecated
      public SimpleFilter( Set<File> jars, Set<String> includes, Set<String> excludes )
      {
          this( jars, includes, excludes, true );
      }
  
      /**
       * @param jars set of {@link File}s.
       * @param archiveFilter set of {@link ArchiveFilter}s.
       */
      public SimpleFilter( final Set<File> jars, final ArchiveFilter archiveFilter )
      {
          this( jars, archiveFilter.getIncludes(), archiveFilter.getExcludes(), archiveFilter.getExcludeDefaults() );
      }
  
      /**
       * @param jars set of {@link File}s.
       * @param includes set of includes.
       * @param excludes set of excludes.
       * @param excludeDefaults whether to exclude default includes once includes are provided explicitly.
       */
      private SimpleFilter( final Set<File> jars, final Set<String> includes, final Set<String> excludes,
        final boolean excludeDefaults )
      {
          this.jars = ( jars != null ) ? Collections.<File>unmodifiableSet( jars ) : Collections.<File>emptySet();
          this.includes = normalizePatterns( includes );
          this.excludes = normalizePatterns( excludes );
          this.excludeDefaults = excludeDefaults;
      }
  
      /** {@inheritDoc} */
      public boolean canFilter( File jar )
      {
          return jars.contains( jar );
      }
  
      /** {@inheritDoc} */
      public boolean isFiltered( String classFile )
      {
          String path = normalizePath( classFile );
  
          return !( ( !excludeDefaults || isIncluded( path ) ) && !isExcluded( path ) );
      }
  
     /**
      * @param classFile The class file.
      * @return true if included false otherwise.
      */
     public boolean isSpecificallyIncluded( String classFile )
     {
         if ( includes == null || includes.isEmpty() )
         {
             return false;
         }
 
         String path = normalizePath( classFile );
 
         return isIncluded( path );
     }
 
     private boolean isIncluded( String classFile )
     {
         if ( includes == null || includes.isEmpty() )
         {
             return true;
         }
 
         return matchPaths( includes, classFile );
     }
 
     private boolean isExcluded( String classFile )
     {
         if ( excludes == null || excludes.isEmpty() )
         {
             return false;
         }
 
         return matchPaths( excludes, classFile );
     }
 
     private boolean matchPaths( Set<String> patterns, String classFile )
     {
         for ( String pattern : patterns )
         {
 
             if ( SelectorUtils.matchPath( pattern, classFile ) )
             {
                 return true;
             }
         }
 
         return false;
     }
 
     private String normalizePath( String path )
     {
         return ( path != null ) ? path.replace( File.separatorChar == '/' ? '\\' : '/', File.separatorChar ) : null;
     }
 
     private Set<String> normalizePatterns( Set<String> patterns )
     {
         Set<String> result = new HashSet<>();
 
         if ( patterns != null )
         {
             for ( String pattern : patterns )
             {
                 pattern = normalizePath( pattern );
 
                 if ( pattern.endsWith( File.separator ) )
                 {
                     pattern += "**";
                 }
 
                 result.add( pattern );
             }
         }
 
         return result;
     }
 
     /** {@inheritDoc} */
     public void finished()
     {
     }
 }