gov/nasa/worldwind/RetrieveToFilePostProcessor.java

   1 /*
   2 Copyright (C) 2001, 2006 United States Government
   3 as represented by the Administrator of the
   4 National Aeronautics and Space Administration.
   5 All Rights Reserved.
   6 */
   7 package gov.nasa.worldwind;
   8
   9 /**
  10  * @author Tom Gaskins
  11  * @version $Id: RetrieveToFilePostProcessor.java 510 2007-01-17 04:57:40Z ericdalgliesh $
  12  */
  13 public final class RetrieveToFilePostProcessor implements RetrievalPostProcessor
  14 {
  15     java.io.File destination;
  16
  17     /**
  18      * @param destination
  19      * @throws IllegalArgumentException if <code>destination</code> is null
  20      */
  21     public RetrieveToFilePostProcessor(java.io.File destination)
  22     {
  23         if (destination == null)
  24         {
  25             String message = WorldWind.retrieveErrMsg("nullValue.DestNull");
  26             WorldWind.logger().log(java.util.logging.Level.FINE, message);
  27             throw new IllegalArgumentException(message);
  28         }
  29
  30         this.destination = destination;
  31     }
  32
  33     /**
  34      * @param retriever
  35      * @return
  36      * @throws IllegalArgumentException if <code>retriever</code> is null
  37      */
  38     public java.nio.ByteBuffer run(Retriever retriever)
  39     {
  40         if (retriever == null)
  41         {
  42             String message = WorldWind.retrieveErrMsg("nullValue.RetrieverIsNull");
  43             WorldWind.logger().log(java.util.logging.Level.FINE, message);
  44             throw new IllegalArgumentException(message);
  45         }
  46
  47         try
  48         {
  49             java.nio.ByteBuffer buffer = retriever.getBuffer();
  50             if (buffer == null)
  51             {
  52                 WorldWind.logger().log(java.util.logging.Level.FINE, WorldWind.retrieveErrMsg(
  53                     "RetrieveToFilePostProcessor.NullBufferPostprocessing") + retriever.getName());
  54                 return null;
  55             }
  56
  57             java.io.FileOutputStream fos = null;
  58             try
  59             {
  60                 fos = new java.io.FileOutputStream(this.destination);
  61                 fos.getChannel().write(buffer);
  62                 return null;
  63             }
  64             catch (java.io.IOException e)
  65             {
  66                 throw e;
  67             }
  68             finally
  69             {
  70                 if (fos != null)
  71                     fos.close();
  72             }
  73         }
  74         catch (java.io.IOException e)
  75         {
  76             String message = WorldWind.retrieveErrMsg("RetrieveToFilePostProcessor.ErrorPostprocessing") + retriever
  77                 .getName();
  78             WorldWind.logger().log(java.util.logging.Level.FINE, message);
  79             throw new WWRuntimeException(message, e);
  80         }
  81     }
  82 }