rice.pastry.socket
Class SocketCollectionManager.SourceRouteManager

java.lang.Object
  rice.selector.SelectionKeyHandler
      rice.pastry.socket.SocketCollectionManager.SourceRouteManager

Enclosing class:

SocketCollectionManager

protected class SocketCollectionManager.SourceRouteManager

extends SelectionKeyHandler

Private class which is tasked with maintaining a source route which goes through this node. This class maintains to sockets, and transfers the data between them. It also is responsible for performing the initial handshake and sending the data across the wire.

Version:

$Id: SocketCollectionManager.java,v 1.59 2005/08/12 14:30:42 jeffh Exp $

Author:

jeffh

Constructor Summary

SocketCollectionManager.SourceRouteManager(java.nio.channels.SelectionKey key)
Constructor which accepts an incoming connection, represented by the selection key.

Method Summary

protected void	acceptConnection(java.nio.channels.SelectionKey key) Accepts a new connection on the given key
protected void	addInterestOp(java.nio.channels.SelectableChannel channel, int op) Internal method which adds an interest op to the given channel's interest set.
void	close() Method which closes down this socket manager, by closing the socket, cancelling the key and setting the key to be interested in nothing
void	connect(java.nio.channels.SelectionKey key) Specified by the SelectionKeyHandler interface - calling this tells this socket manager that the connection has completed and we can now read/write.
protected void	createConnection(EpochInetSocketAddress address) Creates the outgoing socket to the remote handle
void	read(java.nio.channels.SelectionKey key) Reads from the socket attached to this connector.
protected void	removeInterestOp(java.nio.channels.SelectableChannel channel, int op) Internal method which removes an interest op to the given key's interest set.
void	shutdown(java.nio.channels.SocketChannel channel) Method which initiates a shutdown of this socket by calling shutdownOutput().
void	write(java.nio.channels.SelectionKey key) Writes to the socket attached to this socket manager.

Methods inherited from class rice.selector.SelectionKeyHandler

accept, modifyKey

Methods inherited from class java.lang.Object

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

Constructor Detail

SocketCollectionManager.SourceRouteManager

public SocketCollectionManager.SourceRouteManager(java.nio.channels.SelectionKey key)
                                           throws java.io.IOException

Constructor which accepts an incoming connection, represented by the selection key. This constructor builds a new IntermediateSourceRouteManager, and waits until the greeting message is read from the other end. Once the greeting is received, the manager makes sure that a socket for this handle is not already open, and then proceeds as normal.

Parameters:

key - The server accepting key for the channel

Throws:

java.io.IOException - DESCRIBE THE EXCEPTION

Method Detail

addInterestOp

protected void addInterestOp(java.nio.channels.SelectableChannel channel,
                             int op)
                      throws java.io.IOException

Internal method which adds an interest op to the given channel's interest set. One should note that if the passed in key is null, it will determine which channel this is the key for, and then rebuild a key for that channel.

Parameters:

channel - The channel

op - The operation to add to the key's interest set

Throws:

java.io.IOException - DESCRIBE THE EXCEPTION

removeInterestOp

protected void removeInterestOp(java.nio.channels.SelectableChannel channel,
                                int op)
                         throws java.io.IOException

Internal method which removes an interest op to the given key's interest set. One should note that if the passed in key no longer has any interest ops, it is cancelled, removed from the selector's key set, and the corresponding key is set to null in this class.

Parameters:

channel - The channel

op - The operation to remove from the key's interest set

Throws:

java.io.IOException - DESCRIBE THE EXCEPTION

shutdown

public void shutdown(java.nio.channels.SocketChannel channel)

Method which initiates a shutdown of this socket by calling shutdownOutput(). This has the effect of removing the manager from the open list.

Parameters:

channel - DESCRIBE THE PARAMETER

close

public void close()

Method which closes down this socket manager, by closing the socket, cancelling the key and setting the key to be interested in nothing

connect

public void connect(java.nio.channels.SelectionKey key)

Specified by the SelectionKeyHandler interface - calling this tells this socket manager that the connection has completed and we can now read/write.

Overrides:

connect in class SelectionKeyHandler

Parameters:

key - The key which is connectable.

read

public void read(java.nio.channels.SelectionKey key)

Reads from the socket attached to this connector.

Overrides:

read in class SelectionKeyHandler

Parameters:

key - The selection key for this manager

write

public void write(java.nio.channels.SelectionKey key)

Writes to the socket attached to this socket manager.

Overrides:

write in class SelectionKeyHandler

Parameters:

key - The selection key for this manager

acceptConnection

protected void acceptConnection(java.nio.channels.SelectionKey key)
                         throws java.io.IOException

Accepts a new connection on the given key

Parameters:

key - DESCRIBE THE PARAMETER

Throws:

java.io.IOException - DESCRIBE THE EXCEPTION

createConnection

protected void createConnection(EpochInetSocketAddress address)
                         throws java.io.IOException

Creates the outgoing socket to the remote handle

Parameters:

address - The accress to connect to

Throws:

java.io.IOException - DESCRIBE THE EXCEPTION