de.richtercloud.jhbuild.java.wrapper.download

Class AutoDownloader

de.richtercloud.jhbuild.java.wrapper.download.AutoDownloader

All Implemented Interfaces:

Downloader

Direct Known Subclasses:

GUIDownloader

public class AutoDownloader
implements Downloader

Method Summary

Modifier and Type	Method and Description
boolean	download()
boolean	downloadFile() Downloads a file a file located at donwloadURL, compares its MD5 checksum with md5Sum and extracts it into extractionLocation.If the download or the verification failed the caller can take actions in mD5SumCheckUnequalsCallback and downloadFailureCallback callbacks.
DownloadCombi	handleDownloadException() Possibility for subclasses to retrieve data for a new DownloadCombi (from the user, from a website, etc.).This implementation always returns null.
boolean	isCanceled() Possibility for subclasses to a cancelation check. This implementation always returns false.

Methods inherited from interface de.richtercloud.jhbuild.java.wrapper.download.Downloader

downloadFile

Method Detail

downloadFile

public boolean downloadFile()

Downloads a file a file located at donwloadURL, compares its MD5 checksum with md5Sum and extracts it into extractionLocation.If the download or the verification failed the caller can take actions in mD5SumCheckUnequalsCallback and downloadFailureCallback callbacks.

Returns:

false if the validation, download or extraction have been canceled, otherwise true, but exception might have been thrown

Throws:

- if an I/O exception occurs

- if an exception occurs during extraction

- if an exception occurs during download

- if the extraction directory specified in downloadCombi is an existing path which doesn't point to a directory

download

public boolean download()

isCanceled

public boolean isCanceled()

Possibility for subclasses to a cancelation check. This implementation always returns false.

Returns:

true if the download ought to be canceled as soon as possible, false otherwise

handleDownloadException

public DownloadCombi handleDownloadException()

Possibility for subclasses to retrieve data for a new DownloadCombi (from the user, from a website, etc.).This implementation always returns null.

Returns:

a new or the same DownloadCombi or null if the download ought to be canceled