package org.codehaus.plexus.compiler.util.scan;

 /*

  * Copyright 2001-2005 The Apache Software Foundation.

  *

  * Licensed 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.compiler.util.scan.mapping.SourceMapping;

 import org.codehaus.plexus.util.DirectoryScanner;

 import java.io.File;

 import java.util.ArrayList;

 import java.util.Collections;

 import java.util.List;

 import java.util.Set;

 /**

  * @author jdcasey

  */

 public abstract class AbstractSourceInclusionScanner

     implements SourceInclusionScanner

 {

     private final List<SourceMapping> sourceMappings = new ArrayList<SourceMapping>();

     public final void addSourceMapping( SourceMapping sourceMapping )

     {

         sourceMappings.add( sourceMapping );

     }

     protected final List<SourceMapping> getSourceMappings()

     {

         return Collections.unmodifiableList( sourceMappings );

     }

     protected String[] scanForSources( File sourceDir, Set<String> sourceIncludes, Set<String> sourceExcludes )

     {

         DirectoryScanner ds = new DirectoryScanner();

         ds.setFollowSymlinks( true );

         ds.setBasedir( sourceDir );

         String[] includes;

         if ( sourceIncludes.isEmpty() )

         {

             includes = new String[0];

         }

         else

         {

             includes = sourceIncludes.toArray( new String[sourceIncludes.size()] );

         }

         ds.setIncludes( includes );

         String[] excludes;

         if ( sourceExcludes.isEmpty() )

         {

             excludes = new String[0];

         }

         else

         {

             excludes = sourceExcludes.toArray( new String[sourceExcludes.size()] );

         }

         ds.setExcludes( excludes );

         ds.addDefaultExcludes();

         ds.scan();

         return ds.getIncludedFiles();

     }

 }