io.aeron.samples

Class FileReceiver

java.lang.Object

io.aeron.samples.FileReceiver

public class FileReceiver
extends Object

Receives files in chunks and saves them in a directory provided as the first command line option or the temporary directory if no command line arguments are provided.

Protocol is to receive a file-create followed by 1 or more file-chunk messages that are all linked via the correlation id. Messages are encoded in ByteOrder.LITTLE_ENDIAN.

The chunk size if best determined by Publication.maxPayloadLength() minus header for the chunk.

file-create

   0                   1                   2                   3
   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  |                          Version                              |
  +---------------------------------------------------------------+
  |                      Message Type = 1                         |
  +---------------------------------------------------------------+
  |                       Correlation ID                          |
  |                                                               |
  +---------------------------------------------------------------+
  |                        File Length                            |
  |                                                               |
  +---------------------------------------------------------------+
  |                      File Name Length                         |
  +---------------------------------------------------------------+
  |                         File Name                            ...
 ...                                                              |
  +---------------------------------------------------------------+
 

file-chunk

   0                   1                   2                   3
   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
  +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  |                          Version                              |
  +---------------------------------------------------------------+
  |                      Message Type = 2                         |
  +---------------------------------------------------------------+
  |                       Correlation ID                          |
  |                                                               |
  +---------------------------------------------------------------+
  |                        Chunk Offset                           |
  |                                                               |
  +---------------------------------------------------------------+
  |                        Chunk Length                           |
  |                                                               |
  +---------------------------------------------------------------+
  |                        Chunk Payload                         ...
 ...                                                              |
  +---------------------------------------------------------------+
 

* @see FileSender

Method Summary

Modifier and Type	Method and Description
static void	main(String[] args) Main method for launching the process.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

main

public static void main(String[] args)

Main method for launching the process.

Parameters:

args - passed to the process.