de.cismet.tools.gui.downloadmanager

Class MultipleDownload

java.lang.Object

java.util.Observable

de.cismet.tools.gui.downloadmanager.MultipleDownload

All Implemented Interfaces:

Download, Observer

Direct Known Subclasses:

BackgroundTaskMultipleDownload

public class MultipleDownload
extends Observable
implements Download, Observer

A multiple download comprises of several SingleDownloads.

Version:

$Revision$, $Date$

Author:

jweintraut

Nested Class Summary

Nested classes/interfaces inherited from interface de.cismet.tools.gui.downloadmanager.Download

Download.State

Constructor Summary

Constructors

Constructor and Description
MultipleDownload(Collection<? extends Download> downloads, String title) Creates a new MultipleDownload object.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
Exception	getCaughtException() Returns the exception occurred while running this download.
Collection<? extends Download>	getDownloads() Getter for the collection of AbstractDownload objects.
int	getDownloadsCompleted() Returns the count of completed downloads this Download object encapsulates.
int	getDownloadsErroneous() Returns the count of erraneous downloads this Download object encapsulates.
int	getDownloadsTotal() Returns the count of downloads this Download object encapsulates.
JPanel	getExceptionPanel(Exception exception) Returns a JPanel which visualizes the given exception.
File	getFileToSaveTo() Returns the File object pointing to the destination download location.
Download.State	getStatus() Returns the current state of the download.
String	getTitle() Returns the title of the Download.
int	hashCode()
void	setStatus(Download.State status) Set the status of the download and notify the observers about that change.
void	startDownload() Notifies the download that it should start.
void	update(Observable o, Object arg)

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.cismet.tools.gui.downloadmanager.Download

addObserver, deleteObserver, getProgress

Constructor Detail

MultipleDownload

public MultipleDownload(Collection<? extends Download> downloads,
                        String title)

Creates a new MultipleDownload object.

Parameters:

downloads - A collection of AbstractDownloads which are to be downloaded by this multiple download.

title - The title of the multiple download.

Method Detail

startDownload

public void startDownload()

Description copied from interface: Download

Notifies the download that it should start.

Specified by:

startDownload in interface Download

getStatus

public Download.State getStatus()

Description copied from interface: Download

Returns the current state of the download.

Specified by:

getStatus in interface Download

Returns:

The state of the download.

setStatus

public void setStatus(Download.State status)

Set the status of the download and notify the observers about that change.

Parameters:

status - DOCUMENT ME!

getDownloadsTotal

public int getDownloadsTotal()

Description copied from interface: Download

Returns the count of downloads this Download object encapsulates.

Specified by:

getDownloadsTotal in interface Download

Returns:

Total count of downloads.

getDownloadsCompleted

public int getDownloadsCompleted()

Description copied from interface: Download

Returns the count of completed downloads this Download object encapsulates.

Specified by:

getDownloadsCompleted in interface Download

Returns:

Count of completed downloads.

getDownloadsErroneous

public int getDownloadsErroneous()

Description copied from interface: Download

Returns the count of erraneous downloads this Download object encapsulates.

Specified by:

getDownloadsErroneous in interface Download

Returns:

Count of erraneous downloads.

getFileToSaveTo

public File getFileToSaveTo()

Description copied from interface: Download

Returns the File object pointing to the destination download location.

Specified by:

getFileToSaveTo in interface Download

Returns:

Destination download location.

getCaughtException

public Exception getCaughtException()

Description copied from interface: Download

Returns the exception occurred while running this download. Should only be invoked if the status of this download equals an erroneous status.

Should be changed in future releases to Map getCaughtExceptions() for Download implementations which encapsulate multiple downloads.

Specified by:

getCaughtException in interface Download

Returns:

The exception that was caught while downloading.

getTitle

public String getTitle()

Description copied from interface: Download

Returns the title of the Download.

Specified by:

getTitle in interface Download

Returns:

The title of this download.

getExceptionPanel

public JPanel getExceptionPanel(Exception exception)

Description copied from interface: Download

Returns a JPanel which visualizes the given exception.

Specified by:

getExceptionPanel in interface Download

Parameters:

exception - The exception to visualize.

Returns:

A JPanel visualizing the given exception.

getDownloads

public Collection<? extends Download> getDownloads()

Getter for the collection of AbstractDownload objects.

Returns:

The abstract single downloads encapsulated by this multiple download.

update

public void update(Observable o,
                   Object arg)

Specified by:

update in interface Observer

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object