org.esa.beam.framework.gpf.monitor
Class TileComputationObserver

java.lang.Object
  org.esa.beam.framework.gpf.monitor.TileComputationObserver

Direct Known Subclasses:

TileComputationEventLogger, TileUsageReportGenerator

public abstract class TileComputationObserver
extends Object

Gets notified once a new tile has been computed.

The framework uses observers as follows:

1. start() is called only once before any other method is called.
2. tileComputed(TileComputationEvent) is called for each tile computed by any GPF Operator.
3. stop() is called after a Product has been fully written using the WriteOp operator.

Since:

BEAM 4.9

Author:

Norman Fomferra

Constructor Summary

TileComputationObserver()

Method Summary

Logger	getLogger()
void	setLogger(Logger logger)
abstract void	start() Starts observation of tile computation events.
abstract void	stop() Stops observation of tile computation events.
abstract void	tileComputed(TileComputationEvent event) Called each time a tile has been computed.

Methods inherited from class java.lang.Object

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

Constructor Detail

TileComputationObserver

public TileComputationObserver()

Method Detail

getLogger

public final Logger getLogger()

Returns:

A logger.

setLogger

public final void setLogger(Logger logger)

start

public abstract void start()

Starts observation of tile computation events.

tileComputed

public abstract void tileComputed(TileComputationEvent event)

Called each time a tile has been computed. This method is usually called asynchronously by multiple threads. It should perform very fast.

Parameters:

event - The tile computation event.

stop

public abstract void stop()

Stops observation of tile computation events.