Message (Yamcs :: Core 5.3.2 API)

java.lang.Object
- org.yamcs.replication.Message

```
public class Message
extends Object
```
Defines all the message types that are exchanged between master and slave.
Message format:
```
 1 byte type
 3 bytes message size (size of data to follow) = n+4
 n bytes data
 4 bytes CRC.
 
```
This is the same structure used in the replication file to be able to play it directly over the network.
The replication file contains only STREAM_INFO and DATA messages (and we call them transactions)

Field Summary

Fields
Modifier and Type Field Description

static byte DATA

static byte REQUEST

static byte RESPONSE

static byte STREAM_INFO

static byte WAKEUP

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`ByteBuffer`	`encode()`
`static Message`	`get(Request req)`
`static Message`	`get(Response resp)`
`static Message`	`get(Wakeup wp)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail
- WAKEUP
```
public static final byte WAKEUP
```
  See Also:
  
  Constant Field Values
- REQUEST
```
public static final byte REQUEST
```
  See Also:
  
  Constant Field Values
- RESPONSE
```
public static final byte RESPONSE
```
  See Also:
  
  Constant Field Values
- STREAM_INFO
```
public static final byte STREAM_INFO
```
  See Also:
  
  Constant Field Values
- DATA
```
public static final byte DATA
```
  See Also:
  
  Constant Field Values

Method Detail

get

public static Message get(Wakeup wp)

get

public static Message get(Response resp)

get

public static Message get(Request req)

encode
```
public ByteBuffer encode()
```