[jira] Commented: (IVY-1011) Enhance download options

["Xavier Hanin (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/IVY-1011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12666858#action_12666858 ] 

Xavier Hanin commented on IVY-1011:
-----------------------------------

One issue with parallel downloading is download progress reporting. When used from Ant, we are very limited in reporting, output to console being done only by whole lines. I guess this is not a showstopper if we don't get something clean during parallel downloads, but we need to be careful with this IMO.

> Enhance download options
> ------------------------
>
>                 Key: IVY-1011
>                 URL: https://issues.apache.org/jira/browse/IVY-1011
>             Project: Ivy
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jan Matèrne
>            Priority: Minor
>
> Enhance the downloading of artefacts.
> - parallel downloads
> - resuming a download
> - partial downloads
> - using a downloadmanager (for getting the first three topics)
> (Without knowing the internals) I think of something like
> public interface Downloader {
>     /**
>      * @param source From where to download
>      * @param target where to store the artefact
>      * @param progressReporter something that reports the progress (the [.......]ok  at the moment)
>     */
>     download(URI source, File target, ?? progressReporter);
> }
> Implementations:
> - SerialDownloader :  the existing downloader
> - ParallelDownloader : starts multiple downloads in parallel
> - SunDownloader : uses Suns Downloadmanager [1] for doing the job
> - ??Downloader : other (free available Java based) download manager
> [1] http://www.sun.com/download/sdm/download.xml

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