tigase.server.websocket

Class WebSocketHixie76

java.lang.Object

tigase.server.websocket.WebSocketHixie76

All Implemented Interfaces:

WebSocketProtocolIfc

public class WebSocketHixie76
extends Object
implements WebSocketProtocolIfc

Class implements Hixie-76 version of WebSocket protocol specification which is used in connection handshaking as well as in frameing/deframing of data sent over WebSocket connection

Author:

andrzej

See Also:

WebSocket Hixie-76 specification

Field Summary

Fields

Modifier and Type	Field and Description
static String	ID

Fields inherited from interface tigase.server.websocket.WebSocketProtocolIfc

WS_PROTOCOL_KEY, WS_VERSION_KEY

Constructor Summary

Constructors

Constructor and Description
WebSocketHixie76()

Method Summary

Modifier and Type	Method and Description
void	closeConnection(WebSocketXMPPIOService service) Method closes connection by sending close frame
ByteBuffer	decodeFrame(WebSocketXMPPIOService service, ByteBuffer buf) Method responsible for decoding data received from socket and returning data after extracting it from WebSocket frame.
void	encodeFrameAndWrite(WebSocketXMPPIOService service, ByteBuffer buf) Method encodes data into WebSocket frame and writes it to passed service
String	getId() Method to retrieve string identifier of implementation of protcol version
boolean	handshake(WebSocketXMPPIOService service, Map<String,String> headers, byte[] buf) Method responsible for handshaking of WebSocket using proper version of protocol.

Methods inherited from class java.lang.Object

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

Field Detail

ID

public static final String ID

See Also:

Constant Field Values

Constructor Detail

WebSocketHixie76

public WebSocketHixie76()

Method Detail

getId

public String getId()

Description copied from interface: WebSocketProtocolIfc

Method to retrieve string identifier of implementation of protcol version

Specified by:

getId in interface WebSocketProtocolIfc

Returns:

handshake

public boolean handshake(WebSocketXMPPIOService service,
                         Map<String,String> headers,
                         byte[] buf)
                  throws NoSuchAlgorithmException,
                         IOException

Description copied from interface: WebSocketProtocolIfc

Method responsible for handshaking of WebSocket using proper version of protocol.

Specified by:

handshake in interface WebSocketProtocolIfc

Returns:

false - if implementation is not able to handshake using this version of protocol, in other case return true

Throws:

NoSuchAlgorithmException

IOException

decodeFrame

public ByteBuffer decodeFrame(WebSocketXMPPIOService service,
                              ByteBuffer buf)

Description copied from interface: WebSocketProtocolIfc

Method responsible for decoding data received from socket and returning data after extracting it from WebSocket frame.

Specified by:

decodeFrame in interface WebSocketProtocolIfc

Returns:

decoded data or null if not full frame is available in input buffer

encodeFrameAndWrite

public void encodeFrameAndWrite(WebSocketXMPPIOService service,
                                ByteBuffer buf)
                         throws IOException

Description copied from interface: WebSocketProtocolIfc

Method encodes data into WebSocket frame and writes it to passed service

Specified by:

encodeFrameAndWrite in interface WebSocketProtocolIfc

Throws:

IOException

closeConnection

public void closeConnection(WebSocketXMPPIOService service)

Description copied from interface: WebSocketProtocolIfc

Method closes connection by sending close frame

Specified by:

closeConnection in interface WebSocketProtocolIfc