org.lsst.ccs.messaging.util

Class AbstractDispatcher

java.lang.Object

org.lsst.ccs.messaging.util.AbstractDispatcher

All Implemented Interfaces:

Dispatcher

Direct Known Subclasses:

LegacyDispatcher, MultiQueueDispatcher

public abstract class AbstractDispatcher
extends Object
implements Dispatcher

Base class to facilitate implementing Dispatcher. If we need statistic-based actions or MBean access, this is the place to addReport it.

Author:

onoprien

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	AbstractDispatcher.Bin
protected static class	AbstractDispatcher.Bucket
protected static class	AbstractDispatcher.Status

Nested classes/interfaces inherited from interface org.lsst.ccs.messaging.util.Dispatcher

Dispatcher.Order, Dispatcher.Stage, Dispatcher.Stat, Dispatcher.StatusListener

Field Summary

Fields

Modifier and Type	Field and Description
protected static Timer	timer

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractDispatcher(String... args)

Method Summary

Modifier and Type	Method and Description
void	addStatusListener(Dispatcher.StatusListener listener) Registers status listener.
protected int[]	getIntArrayArg(String key, String[] args)
protected Integer	getIntegerArg(String key, String[] args)
protected org.lsst.ccs.utilities.logging.Logger	getLogger()
AbstractDispatcher.Status	getStatus() Returns statistics and diagnostic data on the current state of this Dispatcher.
void	initialize() Initializes this dispatcher.
void	removeStatusListener(Dispatcher.StatusListener listener) Removes status listener.
protected void	report(Runnable run, long taskID, boolean incoming, Bus bus, Dispatcher.Order order, long duration, Dispatcher.Stage... stages)
void	shutdown() Orderly shuts down this dispatcher.
protected void	updateStatistics(ArrayList<Integer> ids)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.lsst.ccs.messaging.util.Dispatcher

in, out

Field Detail

timer

protected static final Timer timer

Constructor Detail

AbstractDispatcher

protected AbstractDispatcher(String... args)

Method Detail

initialize

public void initialize()

Description copied from interface: Dispatcher

Initializes this dispatcher.

Specified by:

initialize in interface Dispatcher

shutdown

public void shutdown()

Description copied from interface: Dispatcher

Orderly shuts down this dispatcher. The MessagingLayer will not be closed until this method returns.

Specified by:

shutdown in interface Dispatcher

report

protected void report(Runnable run,
                      long taskID,
                      boolean incoming,
                      Bus bus,
                      Dispatcher.Order order,
                      long duration,
                      Dispatcher.Stage... stages)

updateStatistics

protected void updateStatistics(ArrayList<Integer> ids)

getStatus

public AbstractDispatcher.Status getStatus()

Description copied from interface: Dispatcher

Returns statistics and diagnostic data on the current state of this Dispatcher. Implementations of Status returned by specific implementations of Dispatcher may provide additional data. The object returned by this method should be treated as immutable. It reflects the latest recorded state and will not be updated.

Specified by:

getStatus in interface Dispatcher

Returns:

Dispatcher status, or null if not available.

addStatusListener

public void addStatusListener(Dispatcher.StatusListener listener)

Description copied from interface: Dispatcher

Registers status listener. The listener will be notified whenever an updated status becomes available.

Specified by:

addStatusListener in interface Dispatcher

Parameters:

listener - Listener to add.

removeStatusListener

public void removeStatusListener(Dispatcher.StatusListener listener)

Description copied from interface: Dispatcher

Removes status listener.

Specified by:

removeStatusListener in interface Dispatcher

Parameters:

listener - Listener to remove.

getLogger

protected org.lsst.ccs.utilities.logging.Logger getLogger()

getIntegerArg

protected final Integer getIntegerArg(String key,
                                      String[] args)

getIntArrayArg

protected final int[] getIntArrayArg(String key,
                                     String[] args)