package org.apache.maven.surefire.booter;
   
   /*
    * 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.io.File;
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  import java.util.Map;
  import java.util.Properties;
  import org.apache.maven.surefire.util.internal.StringUtils;
  
  /**
   * @author Kristian Rosenvold
   */
  public class PropertiesWrapper
      implements KeyValueSource
  {
      private final Properties properties;
  
      public PropertiesWrapper( Properties properties )
      {
          if ( properties == null )
          {
              throw new IllegalStateException( "Properties cannot be null" );
          }
          this.properties = properties;
      }
  
      public Properties getProperties()
      {
          return properties;
      }
  
      public void setAsSystemProperties()
      {
          for ( Iterator i = properties.keySet().iterator(); i.hasNext(); )
          {
              String key = (String) i.next();
  
              System.setProperty( key, properties.getProperty( key ) );
          }
      }
  
      public String getProperty( String key )
      {
          return properties.getProperty( key );
      }
  
      public boolean getBooleanProperty( String propertyName )
      {
          final Boolean aBoolean = Boolean.valueOf( properties.getProperty( propertyName ) );
          return aBoolean.booleanValue();
      }
  
      public Boolean getBooleanObjectProperty( String propertyName )
      {
          return Boolean.valueOf( properties.getProperty( propertyName ) );
      }
  
      public File getFileProperty( String key )
      {
          final String property = getProperty( key );
          if ( property == null )
          {
              return null;
          }
          TypeEncodedValue typeEncodedValue = new TypeEncodedValue( File.class.getName(), property );
          return (File) typeEncodedValue.getDecodedValue();
      }
  
      public List getStringList( String propertyPrefix )
      {
          String value;
          List result = new ArrayList();
          // Whoa, C !!
          for ( int i = 0; ( value = getProperty( propertyPrefix + i ) ) != null; i++ )
          {
              result.add( value );
          }
          return result;
      }
 
     /**
      * Retrieves as single object that is persisted with type encoding
      *
      * @param key The key for the propery
      * @return The object, of a supported type
      */
     public TypeEncodedValue getTypeEncodedValue( String key )
     {
         String typeEncoded = getProperty( key );
         if ( typeEncoded == null )
         {
             return null;
         }
         int typeSep = typeEncoded.indexOf( "|" );
         String type = typeEncoded.substring( 0, typeSep );
         String value = typeEncoded.substring( typeSep + 1 );
         return new TypeEncodedValue( type, value );
     }
 
 
     public void setProperty( String key, File file )
     {
         if ( file != null )
         {
             setProperty( key, file.toString() );
         }
     }
 
     public void setProperty( String key, Boolean aBoolean )
     {
         if ( aBoolean != null )
         {
             setProperty( key, aBoolean.toString() );
         }
     }
 
     Classpath getClasspath( String prefix )
     {
         List elements = getStringList( prefix );
         return new Classpath( elements );
     }
 
     public void setClasspath( String prefix, Classpath classpath )
     {
         List classpathElements = classpath.getClassPath();
         for ( int i = 0; i < classpathElements.size(); ++i )
         {
             String element = (String) classpathElements.get( i );
             setProperty( prefix + i, element );
         }
     }
 
 
     public void setProperty( String key, String value )
     {
         if ( value != null )
         {
             properties.setProperty( key, value );
         }
     }
 
     public void addList( List items, String propertyPrefix )
     {
         if ( items == null || items.size() == 0 )
         {
             return;
         }
         int i = 0;
         for ( Iterator iterator = items.iterator(); iterator.hasNext(); )
         {
             Object item = iterator.next();
             if ( item == null )
             {
                 throw new NullPointerException( propertyPrefix + i + " has null value" );
             }
 
             String[] stringArray = StringUtils.split( item.toString(), "," );
 
             for ( int j = 0; j < stringArray.length; j++ )
             {
                 properties.setProperty( propertyPrefix + i, stringArray[j] );
                 i++;
             }
 
         }
     }
 
     public void copyTo( Map target )
     {
         Iterator iter = properties.keySet().iterator();
         Object key;
         while ( iter.hasNext() )
         {
             key = iter.next();
             target.put( key, properties.get( key ) );
         }
     }
 }