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.List;
  import java.util.Map;
  import org.apache.maven.surefire.util.internal.StringUtils;
  
  /**
   * @author Kristian Rosenvold
   */
  public class PropertiesWrapper
      implements KeyValueSource
  {
      private final Map<String, String> properties;
  
      public PropertiesWrapper( Map<String, String> properties )
      {
          if ( properties == null )
          {
              throw new IllegalStateException( "Properties cannot be null" );
          }
          this.properties = properties;
      }
  
      public Map<String, String> getProperties()
      {
          return properties;
      }
  
      public void setAsSystemProperties()
      {
          for ( Map.Entry<String, String> entry : properties.entrySet() )
          {
              System.setProperty( entry.getKey(), entry.getValue() );
          }
      }
  
      public String getProperty( String key )
      {
          return properties.get( key );
      }
  
      public boolean getBooleanProperty( String propertyName )
      {
          return Boolean.valueOf( properties.get( propertyName ) );
      }
  
      public int getIntProperty( String propertyName )
      {
          return Integer.parseInt( properties.get( 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<String> getStringList( String propertyPrefix )
      {
          List<String> result = new ArrayList<String>();
          for ( int i = 0; ; i++ )
          {
              String value = getProperty( propertyPrefix + i );
  
              if ( value == null )
              {
                  return result;
              }
  
              result.add( value );
          }
      }
  
     /**
      * 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 )
         {
             int typeSep = typeEncoded.indexOf( "|" );
             String type = typeEncoded.substring( 0, typeSep );
             String value = typeEncoded.substring( typeSep + 1 );
             return new TypeEncodedValue( type, value );
         }
         else
         {
             return null;
         }
     }
 
 
     Classpath getClasspath( String prefix )
     {
         List<String> elements = getStringList( prefix );
         return new Classpath( elements );
     }
 
     public void setClasspath( String prefix, Classpath classpath )
     {
         List classpathElements = classpath.getClassPath();
         for ( int i = 0, size = classpathElements.size(); i < size; ++i )
         {
             String element = (String) classpathElements.get( i );
             setProperty( prefix + i, element );
         }
     }
 
 
     public void setProperty( String key, String value )
     {
         if ( value != null )
         {
             properties.put( key, value );
         }
     }
 
     public void addList( List items, String propertyPrefix )
     {
         if ( items != null && !items.isEmpty() )
         {
             int i = 0;
             for ( Object item : items )
             {
                 if ( item == null )
                 {
                     throw new NullPointerException( propertyPrefix + i + " has null value" );
                 }
 
                 String[] stringArray = StringUtils.split( item.toString(), "," );
 
                 for ( String aStringArray : stringArray )
                 {
                     properties.put( propertyPrefix + i, aStringArray );
                     i++;
                 }
             }
         }
     }
 
     public void copyTo( Map<Object, Object> target )
     {
         target.putAll( properties );
     }
 }