Package io.undertow.websockets.extensions

Class NoopExtensionFunction

java.lang.Object

io.undertow.websockets.extensions.NoopExtensionFunction

All Implemented Interfaces:

ExtensionFunction

public class NoopExtensionFunction
extends Object
implements ExtensionFunction

Field Summary

Fields

Modifier and Type	Field	Description
static ExtensionFunction	INSTANCE

Fields inherited from interface io.undertow.websockets.extensions.ExtensionFunction

RSV1, RSV2, RSV3

Constructor Summary

Constructors

Constructor	Description
NoopExtensionFunction()

Method Summary

Modifier and Type	Method	Description
void	dispose()	Dispose this function.
boolean	hasExtensionOpCode()	Validate if current extension defines a new WebSocket Opcode.
PooledByteBuffer	transformForRead(PooledByteBuffer pooledBuffer, StreamSourceFrameChannel channel, boolean lastFragmentOfFrame)	Transform the supplied buffer per this extension.
PooledByteBuffer	transformForWrite(PooledByteBuffer pooledBuffer, StreamSinkFrameChannel channel, boolean lastFrame)	Transform the supplied buffer per this extension.
int	writeRsv(int rsv)	Add RSV bits (RSV1, RSV2, RSV3) to the current rsv status.

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final ExtensionFunction INSTANCE

Constructor Detail

NoopExtensionFunction

public NoopExtensionFunction()

Method Detail

hasExtensionOpCode

public boolean hasExtensionOpCode()

Description copied from interface: ExtensionFunction

Validate if current extension defines a new WebSocket Opcode.

Specified by:

hasExtensionOpCode in interface ExtensionFunction

Returns:

true if current extension defines specific Opcode false is current extension does not define specific Opcode

See Also:

WebSocket Base Framing Protocol Reference

writeRsv

public int writeRsv(int rsv)

Description copied from interface: ExtensionFunction

Add RSV bits (RSV1, RSV2, RSV3) to the current rsv status.

Specified by:

writeRsv in interface ExtensionFunction

Parameters:

rsv - current RSV bits status

Returns:

rsv status

transformForWrite

public PooledByteBuffer transformForWrite(PooledByteBuffer pooledBuffer,
                                          StreamSinkFrameChannel channel,
                                          boolean lastFrame)
                                   throws IOException

Description copied from interface: ExtensionFunction

Transform the supplied buffer per this extension. The buffer can be modified in place, or a new pooled buffer can be returned (in which case be sure to free the original buffer

Specified by:

transformForWrite in interface ExtensionFunction

Parameters:

pooledBuffer - Buffer to transform

channel - working channel

Returns:

transformed buffer (may be the same one, just with modified contents)

Throws:

IOException

transformForRead

public PooledByteBuffer transformForRead(PooledByteBuffer pooledBuffer,
                                         StreamSourceFrameChannel channel,
                                         boolean lastFragmentOfFrame)
                                  throws IOException

Description copied from interface: ExtensionFunction

Transform the supplied buffer per this extension. The buffer can be modified in place, or a new pooled buffer can be returned (in which case be sure to free the original buffer

Specified by:

transformForRead in interface ExtensionFunction

Parameters:

pooledBuffer - Buffer to transform

channel - working channel

lastFragmentOfFrame - If this frame is the last fragment of a message. Note that this may not be received for every message, if the message ends with an empty frame

Returns:

transformed buffer (may be the same one, just with modified contents)

Throws:

IOException

dispose

public void dispose()

Description copied from interface: ExtensionFunction

Dispose this function. Called upon connection closure

Specified by:

dispose in interface ExtensionFunction