public static void cleanupAllFiles(FileSystem fileSystem,String BaseUri) throws IOException {
  try {
    if (fileSystem != null) {
      Path rootDir=new Path(BaseUri);
      FileStatus[] files=fileSystem.listStatus(rootDir);
      for (      FileStatus file : files) {
        fileSystem.delete(file.getPath(),false);
      }
    }
  }
 catch (  Exception e) {
    LOG.error("Error in deleting all files.");
  }
}

public static void cleanupAllFiles ( FileSystem fileSystem , String BaseUri ) throws IOException { try { if ( fileSystem != null ) { Path rootDir = new Path ( BaseUri ) ; FileStatus [ ] files = fileSystem . listStatus ( rootDir ) ; for ( FileStatus file : files ) { fileSystem . delete ( file . getPath ( ) , false ) ; } } } catch ( Exception e ) { LOG . error ( "Error in deleting all files." ) ; } }
deletes all files in a container
