Method fetchResource

src/org/apache/pig/impl/io/FileLocalizer.java:857–887

Ensures that the passed resource is available from the local file system, fetching it to a temporary directory. @throws ResourceNotFoundException

(String name)

     * @throws ResourceNotFoundException
     */
    public static FetchFileRet fetchResource(String name) throws IOException, ResourceNotFoundException {
      FetchFileRet localFileRet = null;
      InputStream resourceStream = PigContext.getClassLoader().getResourceAsStream(name);
      if (resourceStream != null) {
        File dest = new File(localTempDir, name);
        dest.getParentFile().mkdirs();
        dest.deleteOnExit();

        OutputStream outputStream = null;
        try {
            outputStream = new BufferedOutputStream(new FileOutputStream(dest));
            byte[] buffer = new byte[1024];
            int len;
            while ((len=resourceStream.read(buffer)) > 0) {
              outputStream.write(buffer,0,len);
            }
        } finally {
            resourceStream.close();
            if (outputStream != null) {
                outputStream.close();
            }
        }
        localFileRet = new FetchFileRet(dest,false);
      }
      else
      {
        throw new ResourceNotFoundException(name);
      }

      return localFileRet;
    }
}