org.jlab.coda.emu.support.transport

Class DataTransportImplFifo

java.lang.Object

org.jlab.coda.emu.support.codaComponent.CODAStateMachineAdapter

org.jlab.coda.emu.support.transport.DataTransportAdapter

org.jlab.coda.emu.support.transport.DataTransportImplFifo

All Implemented Interfaces:

CODAStateMachine, StatedObject, DataTransport

public class DataTransportImplFifo
extends DataTransportAdapter

Implement a DataTransport that creates FIFO DataChannels based on the RingBuffer.

Author:

heyes, timmer Date: Nov 10, 2008

Field Summary

Fields inherited from class org.jlab.coda.emu.support.transport.DataTransportAdapter

attr, connected, emu, errorMsg, isServer, logger, name, transportClass, transportState

Constructor Summary

Constructors

Constructor and Description
DataTransportImplFifo(java.lang.String pname, java.util.Map<java.lang.String,java.lang.String> attrib, Emu emu) Constructor.

Method Summary

Modifier and Type	Method and Description
DataChannel	createChannel(java.lang.String name, java.util.Map<java.lang.String,java.lang.String> attributeMap, boolean isInput, Emu emu, EmuModule module, int outputIndex) This method creates a DataChannel object.
void	end() This method implements the END transition of the CODA run control state machine.
void	reset() This method implements the RESET transition of the CODA run control state machine.

Methods inherited from class org.jlab.coda.emu.support.transport.DataTransportAdapter

getAttr, getError, getIntAttr, getTransportClass, isConnected, isServer, name, setAttr, setConnected, setName, state

Methods inherited from class org.jlab.coda.emu.support.codaComponent.CODAStateMachineAdapter

download, getEndCallback, getPrestartCallback, go, pause, prestart, registerEndCallback, registerPrestartCallback

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.jlab.coda.emu.support.codaComponent.CODAStateMachine

download, getEndCallback, getPrestartCallback, go, pause, prestart, registerEndCallback, registerPrestartCallback

Constructor Detail

DataTransportImplFifo

public DataTransportImplFifo(java.lang.String pname,
                             java.util.Map<java.lang.String,java.lang.String> attrib,
                             Emu emu)
                      throws DataNotFoundException

Constructor.

Parameters:

pname - name of transport

attrib - transport's attribute map from config file

emu - emu object this transport belongs to

Throws:

DataNotFoundException - when "server" and "class" attributes are missing from attrib map.

Method Detail

end

public void end()

This method implements the END transition of the CODA run control state machine.. Remove all fifo channels.

Specified by:

end in interface CODAStateMachine

Overrides:

end in class CODAStateMachineAdapter

reset

public void reset()

This method implements the RESET transition of the CODA run control state machine.. Remove all fifo channels.

Specified by:

reset in interface CODAStateMachine

Overrides:

reset in class DataTransportAdapter

createChannel

public DataChannel createChannel(java.lang.String name,
                                 java.util.Map<java.lang.String,java.lang.String> attributeMap,
                                 boolean isInput,
                                 Emu emu,
                                 EmuModule module,
                                 int outputIndex)
                          throws DataTransportException

This method creates a DataChannel object.

Parameters:

name - name of DataChannel

attributeMap - hashmap of attributes taken from XML config file

isInput - true if this channel puts data into the Emu, else false

emu - Emu owning this transport

module - module creating this channel

outputIndex - order in which module's events will be sent to this output channel (0 for first output channel, 1 for next, etc.).

Returns:

DataChannel object

Throws:

DataTransportException - if transport problem