abs.ixi.client.io

Class XmppStreamProcessor

java.lang.Object

abs.ixi.client.io.XmppStreamProcessor

All Implemented Interfaces:

ByteHoldingProcessor, InputStreamProcessor

public class XmppStreamProcessor
extends Object
implements ByteHoldingProcessor

XmppStreamProcessor is an implementation of InputStreamProcessor capable of processing XMPP stream. Typically Stringflow processes a multiplexed stream (extended XMPP stream) which should

It is important to note that processing of multiplexed stream is little more performance intensive than a pure XMPP stream.

Field Summary

Fields

Modifier and Type	Field and Description
protected ByteSource	networkData
protected PacketHandler<XMPPPacket>	packetHandler
protected PacketReceiver<XMPPPacket>	packetReceiver
protected XMPPByteProcessor	xmppProcessor

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	XmppStreamProcessor()
	XmppStreamProcessor(PacketHandler<XMPPPacket> packetHandler)
	XmppStreamProcessor(PacketHandler<XMPPPacket> packetHandler, StreamContext ctx, PacketReceiver<XMPPPacket> receiver)

Method Summary

Modifier and Type	Method and Description
void	flushBytePipeline() Flushes partial bytes maintained by this stream processor
byte[]	getBytePipeline() Returns bytes which were left unprocessed in previous run.
boolean	hasBytePipeline() Returns true if this stream processor has unprocessed bytes.
void	process(byte[] data) Processes byte stream and generates xmpp stanza packets
void	process(byte[] data, int offset, int length) Processes byte stream and generates xmpp stanza packets

Methods inherited from class java.lang.Object

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

Field Detail

xmppProcessor

protected XMPPByteProcessor xmppProcessor

packetHandler

protected PacketHandler<XMPPPacket> packetHandler

packetReceiver

protected PacketReceiver<XMPPPacket> packetReceiver

networkData

protected ByteSource networkData

Constructor Detail

XmppStreamProcessor

protected XmppStreamProcessor()

XmppStreamProcessor

public XmppStreamProcessor(PacketHandler<XMPPPacket> packetHandler)

XmppStreamProcessor

public XmppStreamProcessor(PacketHandler<XMPPPacket> packetHandler,
                           StreamContext ctx,
                           PacketReceiver<XMPPPacket> receiver)

Method Detail

process

public void process(byte[] data)
             throws Exception

Description copied from interface: InputStreamProcessor

Processes byte stream and generates xmpp stanza packets

Specified by:

process in interface InputStreamProcessor

Parameters:

data - byte data

Throws:

Exception - exception

process

public void process(byte[] data,
                    int offset,
                    int length)
             throws Exception

Description copied from interface: InputStreamProcessor

Processes byte stream and generates xmpp stanza packets

Specified by:

process in interface InputStreamProcessor

Parameters:

data - data

offset - offset

length - length

Throws:

Exception - exception

hasBytePipeline

public boolean hasBytePipeline()

Description copied from interface: ByteHoldingProcessor

Returns true if this stream processor has unprocessed bytes. Generally these bytes are appended before the incoming bytes before processing.

Partial bytes are stored by stream processor and XMPPPacketReader takes these bytes and appends these bytes before incoming bytes.We can possibly do this append operation in stream processor where it belongs naturally, but it would involve a massive array copy operation.

Specified by:

hasBytePipeline in interface ByteHoldingProcessor

Returns:

boolean true or false

getBytePipeline

public byte[] getBytePipeline()

Description copied from interface: ByteHoldingProcessor

Returns bytes which were left unprocessed in previous run. These bytes could not be decoded into a character because they did not complete a char encoding; in other words, these bytes were part of all the bytes required to represent a character.

Specified by:

getBytePipeline in interface ByteHoldingProcessor

Returns:

byte byte array

flushBytePipeline

public void flushBytePipeline()

Description copied from interface: ByteHoldingProcessor

Flushes partial bytes maintained by this stream processor

Specified by:

flushBytePipeline in interface ByteHoldingProcessor