rice.tutorial.transportlayer
Class BandwidthLimitingTransportLayer<Identifier>

java.lang.Object
  rice.tutorial.transportlayer.BandwidthLimitingTransportLayer<Identifier>

All Implemented Interfaces:

TransportLayer<Identifier,java.nio.ByteBuffer>, TransportLayerCallback<Identifier,java.nio.ByteBuffer>, Destructable

public class BandwidthLimitingTransportLayer<Identifier>
extends java.lang.Object
implements TransportLayer<Identifier,java.nio.ByteBuffer>, TransportLayerCallback<Identifier,java.nio.ByteBuffer>

Field Summary

protected int	bucket When this goes to zero, don't send messages
protected int	BUCKET_SIZE The size of the bucket.
protected int	BUCKET_TIME_LIMIT How often the bucket is refilled.
protected Environment	environment The environment
protected Logger	logger
protected TransportLayer<Identifier,java.nio.ByteBuffer>	tl The lower level transport layer.

Constructor Summary

BandwidthLimitingTransportLayer(TransportLayer<Identifier,java.nio.ByteBuffer> tl, int bucketSize, int bucketTimelimit, Environment env)
To send 10K/second specify use 10240,1000

Method Summary

void	acceptMessages(boolean b) Toggle accepting incoming messages.
void	acceptSockets(boolean b) Toggle accepting new sockets.
void	destroy()
static PastryNodeFactory	exampleA(int bindport, Environment env, NodeIdFactory nidFactory, int amt, int time)
static PastryNodeFactory	exampleB(int bindport, Environment env, NodeIdFactory nidFactory, int amt, int time)
Identifier	getLocalIdentifier() The local node.
void	incomingSocket(P2PSocket<Identifier> s) Notification of a new socket.
void	messageReceived(Identifier i, java.nio.ByteBuffer m, java.util.Map<java.lang.String,java.lang.Object> options) Called when a new message is received.
SocketRequestHandle<Identifier>	openSocket(Identifier i, SocketCallback<Identifier> deliverSocketToMe, java.util.Map<java.lang.String,java.lang.Object> options) Open a socket to the Identifier
MessageRequestHandle<Identifier,java.nio.ByteBuffer>	sendMessage(Identifier i, java.nio.ByteBuffer m, MessageCallback<Identifier,java.nio.ByteBuffer> deliverAckToMe, java.util.Map<java.lang.String,java.lang.Object> options) Send the message to the identifier
void	setCallback(TransportLayerCallback<Identifier,java.nio.ByteBuffer> callback) Set the callback for incoming sockets/messages
void	setErrorHandler(ErrorHandler<Identifier> handler) To be notified of problems not related to an outgoing messaage/socket.

Methods inherited from class java.lang.Object

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

Field Detail

tl

protected TransportLayer<Identifier,java.nio.ByteBuffer> tl

The lower level transport layer.

environment

protected Environment environment

The environment

logger

protected Logger logger

BUCKET_SIZE

protected int BUCKET_SIZE

The size of the bucket.

BUCKET_TIME_LIMIT

protected int BUCKET_TIME_LIMIT

How often the bucket is refilled.

bucket

protected int bucket

When this goes to zero, don't send messages

Constructor Detail

BandwidthLimitingTransportLayer

public BandwidthLimitingTransportLayer(TransportLayer<Identifier,java.nio.ByteBuffer> tl,
                                       int bucketSize,
                                       int bucketTimelimit,
                                       Environment env)

To send 10K/second specify use 10240,1000

Parameters:

bucketSize - bytes to send

bucketTimelimit - in millis

Method Detail

sendMessage

public MessageRequestHandle<Identifier,java.nio.ByteBuffer> sendMessage(Identifier i,
                                                                        java.nio.ByteBuffer m,
                                                                        MessageCallback<Identifier,java.nio.ByteBuffer> deliverAckToMe,
                                                                        java.util.Map<java.lang.String,java.lang.Object> options)

Description copied from interface: TransportLayer

Send the message to the identifier

Specified by:

sendMessage in interface TransportLayer<Identifier,java.nio.ByteBuffer>

Parameters:

i - the destination

m - the message

deliverAckToMe - layer dependent notification when the message is sent (can indicate placed on the wire, point-to-point acknowledgement, or end-to-end acknowledgement)

options - delivery options (don't source route, encrypt etc) (may not be respected if layer cannot provide service)

Returns:

ability to cancel the message if no longer relevent

openSocket

public SocketRequestHandle<Identifier> openSocket(Identifier i,
                                                  SocketCallback<Identifier> deliverSocketToMe,
                                                  java.util.Map<java.lang.String,java.lang.Object> options)

Description copied from interface: TransportLayer

Open a socket to the Identifier

Specified by:

openSocket in interface TransportLayer<Identifier,java.nio.ByteBuffer>

Parameters:

i - who to open the socket to

deliverSocketToMe - the callback when the socket is opened

options - options on how to open the socket (don't source route, encrypt etc) (may not be respected if layer cannot provide service)

Returns:

an object to cancel opening the socket if it takes to long, or is no longer relevent

setCallback

public void setCallback(TransportLayerCallback<Identifier,java.nio.ByteBuffer> callback)

Description copied from interface: TransportLayer

Set the callback for incoming sockets/messages

Specified by:

setCallback in interface TransportLayer<Identifier,java.nio.ByteBuffer>

Parameters:

callback - the callback for incoming sockets/messages

incomingSocket

public void incomingSocket(P2PSocket<Identifier> s)
                    throws java.io.IOException

Description copied from interface: TransportLayerCallback

Notification of a new socket.

Specified by:

incomingSocket in interface TransportLayerCallback<Identifier,java.nio.ByteBuffer>

Parameters:

s - the incoming socket

Throws:

java.io.IOException

acceptMessages

public void acceptMessages(boolean b)

Description copied from interface: TransportLayer

Toggle accepting incoming messages. Useful in flow control if overwhelmed by incoming sockets. Default: true

Specified by:

acceptMessages in interface TransportLayer<Identifier,java.nio.ByteBuffer>

acceptSockets

public void acceptSockets(boolean b)

Description copied from interface: TransportLayer

Toggle accepting new sockets. Useful in flow control if overwhelmed by incoming sockets. Default: true

Specified by:

acceptSockets in interface TransportLayer<Identifier,java.nio.ByteBuffer>

getLocalIdentifier

public Identifier getLocalIdentifier()

Description copied from interface: TransportLayer

The local node.

Specified by:

getLocalIdentifier in interface TransportLayer<Identifier,java.nio.ByteBuffer>

Returns:

The local node.

setErrorHandler

public void setErrorHandler(ErrorHandler<Identifier> handler)

Description copied from interface: TransportLayer

To be notified of problems not related to an outgoing messaage/socket. Or to be notified if a callback isn't provided.

Specified by:

setErrorHandler in interface TransportLayer<Identifier,java.nio.ByteBuffer>

Parameters:

handler - to be notified of problems not related to a specific messaage/socket.

destroy

public void destroy()

Specified by:

destroy in interface Destructable

messageReceived

public void messageReceived(Identifier i,
                            java.nio.ByteBuffer m,
                            java.util.Map<java.lang.String,java.lang.Object> options)
                     throws java.io.IOException

Description copied from interface: TransportLayerCallback

Called when a new message is received.

Specified by:

messageReceived in interface TransportLayerCallback<Identifier,java.nio.ByteBuffer>

Parameters:

i - The node it is coming from

m - the message

options - describe how the message arrived (udp/tcp, encrypted etc)

Throws:

java.io.IOException - if there is a problem decoding the message

exampleA

public static PastryNodeFactory exampleA(int bindport,
                                         Environment env,
                                         NodeIdFactory nidFactory,
                                         int amt,
                                         int time)
                                  throws java.io.IOException

Throws:

java.io.IOException

exampleB

public static PastryNodeFactory exampleB(int bindport,
                                         Environment env,
                                         NodeIdFactory nidFactory,
                                         int amt,
                                         int time)
                                  throws java.io.IOException

Throws:

java.io.IOException