org.jivesoftware.wildfire.net
Class SocketReader

java.lang.Object
  org.jivesoftware.wildfire.net.SocketReader

All Implemented Interfaces:

Runnable

Direct Known Subclasses:

ComponentSocketReader, ServerSocketReader

public abstract class SocketReader
extends Object
implements Runnable

A SocketReader creates the appropriate Session based on the defined namespace in the stream element and will then keep reading and routing the received packets.

Author:

Gaston Dombiak

Field Summary

protected SocketConnection	connection Reference to the physical connection.
protected boolean	open
protected String	serverName Server name for which we are attending clients.
protected Session	session Session associated with the socket reader.

Constructor Summary

SocketReader(PacketRouter router, RoutingTable routingTable, String serverName, Socket socket, SocketConnection connection, boolean useBlockingMode)
Creates a dedicated reader for a socket.

Method Summary

protected void	createSession() Uses the XPP to grab the opening stream tag and create an active session object.
protected void	process(org.dom4j.Element doc)
protected void	processIQ(IQ packet) Process the received IQ packet.
protected void	processMessage(Message packet) Process the received Message packet.
protected void	processPresence(Presence packet) Process the received Presence packet.
void	run() A dedicated thread loop for reading the stream and sending incoming packets to the appropriate router.
protected void	shutdown() Notification message indicating that the SocketReader is shutting down.

Methods inherited from class java.lang.Object

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

Field Detail

session

protected Session session

Session associated with the socket reader.

connection

protected SocketConnection connection

Reference to the physical connection.

serverName

protected String serverName

Server name for which we are attending clients.

open

protected boolean open

Constructor Detail

SocketReader

public SocketReader(PacketRouter router,
                    RoutingTable routingTable,
                    String serverName,
                    Socket socket,
                    SocketConnection connection,
                    boolean useBlockingMode)

Creates a dedicated reader for a socket.

Parameters:

router - the router for sending packets that were read.

routingTable - the table that keeps routes to registered services.

serverName - the name of the server this socket is working for.

socket - the socket to read from.

connection - the connection being read.

useBlockingMode - true means that the server will use a thread per connection.

Method Detail

run

public void run()

A dedicated thread loop for reading the stream and sending incoming packets to the appropriate router.

Specified by:

run in interface Runnable

process

protected void process(org.dom4j.Element doc)
                throws Exception

Throws:

Exception

processIQ

protected void processIQ(IQ packet)
                  throws UnauthorizedException

Process the received IQ packet. Registered PacketInterceptor will be invoked before and after the packet was routed.

Subclasses may redefine this method for different reasons such as modifying the sender of the packet to avoid spoofing, rejecting the packet or even process the packet in another thread.

Parameters:

packet - the received packet.

Throws:

UnauthorizedException

processPresence

protected void processPresence(Presence packet)
                        throws UnauthorizedException

Process the received Presence packet. Registered PacketInterceptor will be invoked before and after the packet was routed.

Subclasses may redefine this method for different reasons such as modifying the sender of the packet to avoid spoofing, rejecting the packet or even process the packet in another thread.

Parameters:

packet - the received packet.

Throws:

UnauthorizedException

processMessage

protected void processMessage(Message packet)
                       throws UnauthorizedException

Process the received Message packet. Registered PacketInterceptor will be invoked before and after the packet was routed.

Subclasses may redefine this method for different reasons such as modifying the sender of the packet to avoid spoofing, rejecting the packet or even process the packet in another thread.

Parameters:

packet - the received packet.

Throws:

UnauthorizedException

createSession

protected void createSession()
                      throws UnauthorizedException,
                             org.xmlpull.v1.XmlPullParserException,
                             IOException

Uses the XPP to grab the opening stream tag and create an active session object. The session to create will depend on the sent namespace. In all cases, the method obtains the opening stream tag, checks for errors, and either creates a session or returns an error and kills the connection. If the connection remains open, the XPP will be set to be ready for the first packet. A call to next() should result in an START_TAG state with the first packet in the stream.

Throws:

UnauthorizedException

org.xmlpull.v1.XmlPullParserException

IOException

shutdown

protected void shutdown()

Notification message indicating that the SocketReader is shutting down. The thread will stop reading and processing new requests. Subclasses may want to redefine this message for releasing any resource they might need.