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.Iterator;

 import java.util.Set;

 /**

  * @author David Blevins

  */

 public class SimpleFilter

     implements Filter

 {

     private File jar;

     private Set includes;

     private Set excludes;

     public SimpleFilter( File jar, Set includes, Set excludes )

     {

         this.jar = jar;

         this.includes = includes;

         this.excludes = excludes;

     }

     public boolean canFilter( File jar )

     {

         return this.jar.equals( jar );

     }

     public boolean isFiltered( String classFile )

     {

         return !( isIncluded( classFile ) && !isExcluded( classFile ) );

     }

     private boolean isIncluded( String classFile )

     {

         if ( includes == null || includes.size() == 0 )

         {

             return true;

         }

         return matchPaths( includes, classFile );

     }

     private boolean isExcluded( String classFile )

     {

         if ( excludes == null || excludes.size() == 0 )

         {

             return false;

         }

         return matchPaths( excludes, classFile );

     }

     private boolean matchPaths( Set patterns, String classFile )

     {

         for ( Iterator iterator = patterns.iterator(); iterator.hasNext(); )

         {

             String pattern = (String) iterator.next();

             if ( SelectorUtils.matchPath( pattern, classFile ) )

             {

                 return true;

             }

         }

         return false;

     }

 }