Package org.yamcs.tctm

Class UdpTcDataLink

java.lang.Object

com.google.common.util.concurrent.AbstractService

org.yamcs.tctm.AbstractLink

org.yamcs.tctm.AbstractTcDataLink

org.yamcs.tctm.AbstractThreadedTcDataLink

org.yamcs.tctm.UdpTcDataLink

All Implemented Interfaces:

com.google.common.util.concurrent.Service, Runnable, SystemParametersProducer, Link, LinkActionProvider, TcDataLink

public class UdpTcDataLink
extends AbstractThreadedTcDataLink

Sends raw packets on UDP socket.

Nested Class Summary

Nested classes/interfaces inherited from interface org.yamcs.tctm.Link

Link.Status

Nested classes/interfaces inherited from interface com.google.common.util.concurrent.Service

com.google.common.util.concurrent.Service.Listener, com.google.common.util.concurrent.Service.State

Field Summary

Fields

Modifier and Type	Field	Description
protected String	host
protected int	port
protected DatagramSocket	socket

Fields inherited from class org.yamcs.tctm.AbstractThreadedTcDataLink

commandQueue

Fields inherited from class org.yamcs.tctm.AbstractTcDataLink

cmdPostProcessor, commandHistoryPublisher, housekeepingInterval

Fields inherited from class org.yamcs.tctm.AbstractLink

config, dataInCount, dataOutCount, disabled, eventProducer, LINK_NAMESPACE, linkName, log, timeService, yamcsInstance

Constructor Summary

Constructors

Constructor	Description
UdpTcDataLink()

Method Summary

Modifier and Type	Method	Description
protected Link.Status	connectionStatus()	In case the link should be connected (i.e. is running and enabled) this method is called to return the actual connection status
String	getDetailedStatus()	Returns a short detail status (one-line)
Spec	getSpec()	Returns the valid configuration of the input args of this link.
void	init(String yamcsInstance, String name, YConfiguration config)	Called at startup to initialize the link.
void	shutDown()	Called at shutdown (if the link is enabled) or when the link is disabled
protected void	startUp()	Called at start up (if the link is enabled) or when the link is enabled
void	uplinkCommand(PreparedCommand pc)	Called

Methods inherited from class org.yamcs.tctm.AbstractThreadedTcDataLink

doDisable, doEnable, doHousekeeping, doStart, doStop, getDefaultSpec, run, sendCommand

Methods inherited from class org.yamcs.tctm.AbstractTcDataLink

ackCommand, failedCommand, getDataInCount, initPostprocessor, initPostprocessor2, postprocess, setCommandHistoryPublisher

Methods inherited from class org.yamcs.tctm.AbstractLink

addAction, collectSystemParameters, dataIn, dataOut, disable, enable, getAction, getActions, getConfig, getCurrentTime, getDataOutCount, getEventLoop, getLinkStatus, getName, getParent, getSystemParameters, getYamcsInstance, isDisabled, isRunningAndEnabled, resetCounters, setParent, setupSystemParameters

Methods inherited from class com.google.common.util.concurrent.AbstractService

addListener, awaitRunning, awaitRunning, awaitRunning, awaitTerminated, awaitTerminated, awaitTerminated, doCancelStart, failureCause, isRunning, notifyFailed, notifyStarted, notifyStopped, startAsync, state, stopAsync, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.yamcs.tctm.Link

disable, enable, getConfig, getDataOutCount, getExtraInfo, getLinkStatus, getName, getParent, isDisabled, isEffectivelyDisabled, resetCounters, setParent, setupSystemParameters

Methods inherited from interface org.yamcs.parameter.SystemParametersProducer

getFrequency

Methods inherited from interface org.yamcs.tctm.TcDataLink

isCommandingAvailable, isTcDataLinkImplemented

Field Details

socket

protected DatagramSocket socket

host

protected String host

port

protected int port

Constructor Details

UdpTcDataLink

public UdpTcDataLink()

Method Details

getSpec

public Spec getSpec()

Description copied from interface: Link

Returns the valid configuration of the input args of this link.

Returns:

the argument specification, or null if the args should not be validated.

init

public void init(String yamcsInstance,
 String name,
 YConfiguration config)

Description copied from interface: Link

Called at startup to initialize the link.

The config corresponds to the map that is under the link definition in yamcs.instance.yaml.

Specified by:

init in interface Link

Overrides:

init in class AbstractThreadedTcDataLink

config - - the configuration - cannot be null (but can be empty)

startUp

protected void startUp()
                throws SocketException,
UnknownHostException

Description copied from class: AbstractThreadedTcDataLink

Called at start up (if the link is enabled) or when the link is enabled

Specified by:

startUp in class AbstractThreadedTcDataLink

Throws:

SocketException

UnknownHostException

getDetailedStatus

public String getDetailedStatus()

Description copied from interface: Link

Returns a short detail status (one-line)

Specified by:

getDetailedStatus in interface Link

Overrides:

getDetailedStatus in class AbstractLink

shutDown

public void shutDown()

Description copied from class: AbstractThreadedTcDataLink

Called at shutdown (if the link is enabled) or when the link is disabled

Specified by:

shutDown in class AbstractThreadedTcDataLink

uplinkCommand

public void uplinkCommand(PreparedCommand pc)
                   throws IOException

Description copied from class: AbstractThreadedTcDataLink

Called

Specified by:

uplinkCommand in class AbstractThreadedTcDataLink

Throws:

IOException

connectionStatus

protected Link.Status connectionStatus()

Description copied from class: AbstractLink

In case the link should be connected (i.e. is running and enabled) this method is called to return the actual connection status

Specified by:

connectionStatus in class AbstractLink