com.raspoid.network

Class MessageLikeSocketServer

java.lang.Object

com.raspoid.network.SocketServer

com.raspoid.network.MessageLikeSocketServer

public class MessageLikeSocketServer
extends SocketServer

This server is used to provide (if needed) a message-like support on top of a socket server.

In TCP, you can't rely on separate "packets" being received separately. Sending 4 chunks of 10 bytes may be received as 1 chunk of 40 bytes, 2 chunks of 20 bytes, or one chunk of 39 and one chunk of 1 byte. TCP guarantees in order delivery, but not any particular 'packetization' of your data.

Our protocol is pretty simple. Each packet must have the following format:

 -------------------------------------------
 | payload_length (4 bytes) | payload      |
 -------------------------------------------
 

You can then easily decode received TCP packets and decode corresponding messages.

This server must be linked to a Router.

Example of use: MessageLikeSocketServerExample

Field Summary

Fields inherited from class com.raspoid.network.SocketServer

port, router, serverIpAddresses

Constructor Summary

Constructors

Constructor and Description
MessageLikeSocketServer(int maxNbOfConnections, int port, Router router) Constructor for a message-like socket server using the specified parameters.
MessageLikeSocketServer(Router router) Constructor for a message-like socket server using the specified Router and with the following parameter values: Maximum number of connections: 5 Port number: Network.getAvailablePort()

Method Summary

Modifier and Type	Method and Description
protected void	newThreadToDealWithClient(java.net.Socket client)
protected void	printServerLaunchedMessage()

Methods inherited from class com.raspoid.network.SocketServer

close, getIpAddresses, getPort, pause, start

Methods inherited from class java.lang.Object

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

Constructor Detail

MessageLikeSocketServer

public MessageLikeSocketServer(Router router)

Constructor for a message-like socket server using the specified Router and with the following parameter values:

• Maximum number of connections: 5
• Port number: Network.getAvailablePort()

Parameters:

router - the Raspoid router to use with this server.

See Also:

NetworkUtilities.getAvailablePort()

MessageLikeSocketServer

public MessageLikeSocketServer(int maxNbOfConnections,
                               int port,
                               Router router)

Constructor for a message-like socket server using the specified parameters.

Parameters:

maxNbOfConnections - the maximum number of parallel connections allowed on this server.

port - the port to use with this server.

router - the Raspoid router to use with this server.

Method Detail

newThreadToDealWithClient

protected void newThreadToDealWithClient(java.net.Socket client)

Overrides:

newThreadToDealWithClient in class SocketServer

printServerLaunchedMessage

protected void printServerLaunchedMessage()

Overrides:

printServerLaunchedMessage in class SocketServer