org.openstreetmap.josm.gui.dialogs.relation

Class DownloadRelationTask

java.lang.Object

org.openstreetmap.josm.gui.PleaseWaitRunnable

org.openstreetmap.josm.gui.dialogs.relation.DownloadRelationTask

All Implemented Interfaces:

Runnable, ProgressMonitor.CancelListener

public class DownloadRelationTask
extends PleaseWaitRunnable

The asynchronous task for fully downloading a collection of relations. Does a full download for each relations and merges the relation into an OsmDataLayer

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	canceled
private Exception	lastException
private OsmDataLayer	layer
private OsmServerObjectReader	objectReader
private Collection<Relation>	relations

Fields inherited from class org.openstreetmap.josm.gui.PleaseWaitRunnable

progressMonitor

Constructor Summary

Constructors

Constructor and Description
DownloadRelationTask(Collection<Relation> relations, OsmDataLayer layer) Creates the download task

Method Summary

Modifier and Type	Method and Description
protected void	cancel() User pressed cancel button.
protected void	finish() Finish up the data work.
protected void	realRun() Called in the worker thread to do the actual work.

Methods inherited from class org.openstreetmap.josm.gui.PleaseWaitRunnable

afterFinish, canRunInBackground, getProgressMonitor, operationCanceled, run

Methods inherited from class java.lang.Object

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

Field Detail

canceled

private boolean canceled

lastException

private Exception lastException

relations

private Collection<Relation> relations

layer

private OsmDataLayer layer

objectReader

private OsmServerObjectReader objectReader

Constructor Detail

DownloadRelationTask

public DownloadRelationTask(Collection<Relation> relations,
                            OsmDataLayer layer)
                     throws IllegalArgumentException

Creates the download task

Parameters:

relations - a collection of relations. Must not be null.

layer - the layer which data is to be merged into

Throws:

IllegalArgumentException - thrown if relations is null

IllegalArgumentException - thrown if layer is null

Method Detail

cancel

protected void cancel()

Description copied from class: PleaseWaitRunnable

User pressed cancel button.

Specified by:

cancel in class PleaseWaitRunnable

finish

protected void finish()

Description copied from class: PleaseWaitRunnable

Finish up the data work. Is guaranteed to be called if realRun is called. Finish is called in the gui thread just after the dialog disappeared.

Specified by:

finish in class PleaseWaitRunnable

realRun

protected void realRun()
                throws SAXException,
                       IOException,
                       OsmTransferException

Description copied from class: PleaseWaitRunnable

Called in the worker thread to do the actual work. When any of the exception is thrown, a message box will be displayed and closeDialog is called. finish() is called in any case.

Specified by:

realRun in class PleaseWaitRunnable

Throws:

SAXException

IOException

OsmTransferException