package org.apache.maven.surefire.util;

 /*

  * 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.Collections;

 import java.util.List;

 import java.util.Properties;

 /**

  * @author Kristian Rosenvold

  */

 public class DefaultScanResult

     implements ScanResult

 {

     private final List files;

     private static final String scanResultNo = "tc.";

     public DefaultScanResult( List files )

     {

         this.files = files;

     }

     public int size()

     {

         return files.size();

     }

     public String getClassName( int index )

     {

         return (String) files.get( index );

     }

     public void writeTo( Properties properties )

     {

         int size = files.size();

         for ( int i = 0; i < size; i++ )

         {

             properties.setProperty( scanResultNo + i, (String) files.get( i ) );

         }

     }

     public static DefaultScanResult from( Properties properties )

     {

         List result = new ArrayList();

         int i = 0;

         while ( true )

         {

             String item = properties.getProperty( scanResultNo + ( i++ ) );

             if ( item == null )

             {

                 return new DefaultScanResult( result );

             }

             result.add( item );

         }

     }

     public boolean isEmpty()

     {

         return files.isEmpty();

     }

     public List getFiles()

     {

         return Collections.unmodifiableList( files );

     }

     public TestsToRun applyFilter( ScannerFilter scannerFilter, ClassLoader testClassLoader )

     {

         List result = new ArrayList();

         int size = size();

         for ( int i = 0; i < size; i++ )

         {

             String className = getClassName( i );

             Class testClass = loadClass( testClassLoader, className );

             if ( scannerFilter == null || scannerFilter.accept( testClass ) )

             {

                 result.add( testClass );

             }

         }

         return new TestsToRun( result );

     }

     public List getClassesSkippedByValidation( ScannerFilter scannerFilter, ClassLoader testClassLoader )

     {

         List result = new ArrayList();

         int size = size();

         for ( int i = 0; i < size; i++ )

         {

             String className = getClassName( i );

             Class testClass = loadClass( testClassLoader, className );

             if ( scannerFilter != null && !scannerFilter.accept( testClass ) )

             {

                 result.add( testClass );

             }

         }

         return result;

     }

     private static Class loadClass( ClassLoader classLoader, String className )

     {

         Class testClass;

         try

         {

             testClass = classLoader.loadClass( className );

         }

         catch ( ClassNotFoundException e )

         {

             throw new NestedRuntimeException( "Unable to create test class '" + className + "'", e );

         }

         return testClass;

     }

 }