Package com.cosylab.epics.caj.impl.handlers

Class AbstractCAResponseHandler

java.lang.Object

com.cosylab.epics.caj.impl.handlers.AbstractCAResponseHandler

All Implemented Interfaces:

ResponseHandler

Direct Known Subclasses:

AbstractCAJResponseHandler, AbstractCASResponseHandler

public abstract class AbstractCAResponseHandler
extends Object
implements ResponseHandler

Version:

$id$

Author:

Matej Sekoranja

Field Summary

Fields

Modifier and Type	Field	Description
protected short	command	Command field of the header.
protected int	dataCount	Data count field of the header.
protected short	dataType	Data type field of the header.
protected boolean	debug	Debug flag.
protected String	description	CA response description.
protected int	parameter1	Parameter 1 field of the header.
protected int	parameter2	Parameter 2 field of the header.
protected int	payloadSize	Payload size field of the header.

Constructor Summary

Constructors

Constructor	Description
AbstractCAResponseHandler(String description)

Method Summary

Modifier and Type	Method	Description
void	handleResponse(InetSocketAddress responseFrom, Transport transport, ByteBuffer[] response)	NOTE: (Extended) header buffer size validation should have been already done.
protected abstract void	internalHandleResponse(InetSocketAddress responseFrom, Transport transport, ByteBuffer[] response)	Called after header is parsed by parseHeader() method.
protected void	parseHeader(ByteBuffer headerBuffer)	Parse CA response header.

Methods inherited from class java.lang.Object

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

Field Detail

description

protected String description

CA response description.

command

protected short command

Command field of the header.

payloadSize

protected int payloadSize

Payload size field of the header.

dataType

protected short dataType

Data type field of the header.

dataCount

protected int dataCount

Data count field of the header. NOTE: extended

parameter1

protected int parameter1

Parameter 1 field of the header.

parameter2

protected int parameter2

Parameter 2 field of the header.

debug

protected boolean debug

Debug flag.

Constructor Detail

AbstractCAResponseHandler

public AbstractCAResponseHandler(String description)

Parameters:

description -

Method Detail

handleResponse

public void handleResponse(InetSocketAddress responseFrom,
                           Transport transport,
                           ByteBuffer[] response)

NOTE: (Extended) header buffer size validation should have been already done. response is array of maximum of 2 elments: #UDP: contains whole response #TCP: first element contains complete standard or extended response message header, second whole payload. No buffer size checking is done.

Specified by:

handleResponse in interface ResponseHandler

Parameters:

responseFrom - remove address of the responder, null if unknown.

transport - response source transport.

response - array of response messages to handle. First buffer in array has to contain whole (extended) message header.

See Also:

ResponseHandler.handleResponse(java.net.InetSocketAddress, com.cosylab.epics.caj.impl.Transport, java.nio.ByteBuffer[])

internalHandleResponse

protected abstract void internalHandleResponse(InetSocketAddress responseFrom,
                                               Transport transport,
                                               ByteBuffer[] response)

Called after header is parsed by parseHeader() method.

See Also:

ResponseHandler.handleResponse(java.net.InetSocketAddress, com.cosylab.epics.caj.impl.Transport, java.nio.ByteBuffer[])

parseHeader

protected void parseHeader(ByteBuffer headerBuffer)

Parse CA response header.

Parameters:

headerBuffer - response header to be parsed.