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.io.FileInputStream;

 import java.io.FileOutputStream;

 import java.io.IOException;

 import java.io.InputStream;

 import java.util.Properties;

 /**

  * @author Kristian Rosenvold

  */

 public class SystemPropertyManager

 {

     /**

      * Loads the properties, closes the stream

      *

      * @param inStream The stream to read from, will be closed

      * @return The properties

      * @throws java.io.IOException If something bad happens

      */

     public static PropertiesWrapper loadProperties( InputStream inStream )

         throws IOException

     {

         Properties p = new Properties();

         try

         {

             p.load( inStream );

         }

         finally

         {

             close( inStream );

         }

         return new PropertiesWrapper( p );

     }

     private static PropertiesWrapper loadProperties( File file )

         throws IOException

     {

         return loadProperties( new FileInputStream( file ) );

     }

     public static void setSystemProperties( File file )

         throws IOException

     {

         PropertiesWrapper p = loadProperties( file );

         p.setAsSystemProperties();

     }

     public static File writePropertiesFile( Properties properties, File tempDirectory, String name,

                                             boolean keepForkFiles )

         throws IOException

     {

         File file = File.createTempFile( name, "tmp", tempDirectory );

         if ( !keepForkFiles )

         {

             file.deleteOnExit();

         }

         writePropertiesFile( file, name, properties );

         return file;

     }

     public static void writePropertiesFile( File file, String name, Properties properties )

         throws IOException

     {

         FileOutputStream out = new FileOutputStream( file );

         try

         {

             properties.store( out, name );

         }

         finally

         {

             out.close();

         }

     }

     public static void close( InputStream inputStream )

     {

         if ( inputStream == null )

         {

             return;

         }

         try

         {

             inputStream.close();

         }

         catch ( IOException ex )

         {

             // ignore

         }

     }

 }