RE: DownloadLink and ProgressBar
I would be wrong to show a 0% - 100% status bar. You might want to switch back to an indeterminate progress bar and do what Apple does during OS X install, show a label letting the user of your estimate such as Approximately 5 minutes remaining or Less than a minute remaning. ~ Thank you, Paul Bors -Original Message- From: seyaw [mailto:seidy...@gmail.com] Sent: Monday, November 18, 2013 2:25 PM To: users@wicket.apache.org Subject: RE: DownloadLink and ProgressBar Yes Paul, getting the progress of the file generation is one of my challenge right now. The file generation is, in my case is not linear. For example, the time it takes for different procedures is depend on the project size. Currently, I just make a rough estimation so that the user at least can see the file generation is in progress. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp46 62451p4662504.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: DownloadLink and ProgressBar
Hi,
I haven't seen a web application that shows progress bar for download.
The browser itself shows such information - Google Chrome in the
bottom-left corner, Firefox in its download window/manager.
On Sat, Nov 16, 2013 at 11:40 AM, Ernesto Reinaldo Barreiro
reier...@gmail.com wrote:
Hi,
1-Replace the download link by an AJAX link.
2-Launch file generation on a background thread. Pass a class to this
thread that serves as context fro passing information from generating
thread with web threads (keeping a reference to thisi context on the page).
3-Make a progress panel visible + an AJAX timer that pols the server for
progress.
Point 3) won't work if the file download is from a resource linked to the
page. And it is thru DownloadLink.
In this case the ajax timer won't be able to reach the page at all.
The app should use a mounted/shared resource.
see wicket-extensions' UploadProgressBar and/or follow the progress of
https://github.com/l0rdn1kk0n/wicket-bootstrap/issues/262 for example. Both
are related to *upload*, not download.
4-Once file is generated replace progress panel with a download link (or
use trick in [1] to trigger file dowmload)
References
1-
https://cwiki.apache.org/confluence/display/WICKET/AJAX+update+and+file+download+in+one+blow
On Sat, Nov 16, 2013 at 10:29 AM, seyaw seidy...@gmail.com wrote:
Hi All,
I have a wicket DownloadLink where I generate file dynamically and
download
it. It works.
The process of dynamic File generation might take some time and like to
show
ProgressBar which show how much the generation has progressed. How Can I
do
that.
I am using wicket 1.5.8
Thank you very much.
add(new DownloadLink(export, new LoadableDetachableModelFile()
{
private static final long serialVersionUID =
840863954694163375L;
@Override
protected File load()
{
File exportTempDir = getGeneratedFile();
}
}
--
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Re: DownloadLink and ProgressBar
Martin, Thanks for your comments. On Mon, Nov 18, 2013 at 9:10 AM, Martin Grigorov mgrigo...@apache.orgwrote: Hi, I haven't seen a web application that shows progress bar for download. The browser itself shows such information - Google Chrome in the bottom-left corner, Firefox in its download window/manager. I'm not talking of a progress bar for download. I'm talking of showing a progress bar for file generation (a file that takes too long to generate). Once file is generated download will be triggered. I have implemented a similar use case several times before. 1-Replace the download link by an AJAX link. 2-Launch file generation on a background thread. Pass a class to this thread that serves as context fro passing information from generating thread with web threads (keeping a reference to thisi context on the page). 3-Make a progress panel visible + an AJAX timer that pols the server for progress. Point 3) won't work if the file download is from a resource linked to the page. And it is thru DownloadLink. In this case the ajax timer won't be able to reach the page at all. ? Not following you. Page and thread generating the file will share a context the file generating thread will use to update WEB threads about status of generation (e.g. progress info). All the AJAX timer will do is poll the page and ask for this information. Once file is generated timer will disable itself and trigger download (or display a new panel with download link). Again I have implemented something similar more than once in my life. The app should use a mounted/shared resource. see wicket-extensions' UploadProgressBar and/or follow the progress of https://github.com/l0rdn1kk0n/wicket-bootstrap/issues/262 for example. Both are related to *upload*, not download. Yes I know the limitation of serving resources from pages. Maybe one variation of this is that the timer just points to the mounted resource in order to trigger the actual download. That is not more difficult to achieve that downloading from page. Shall I build a small mini app illustrating this? Maybe it can be useful to other users? -- Regards - Ernesto Reinaldo Barreiro
Re: DownloadLink and ProgressBar
I didn't read the question correctly. It indeed talks about showing progress for the generation process, not the download. On Mon, Nov 18, 2013 at 10:39 AM, Ernesto Reinaldo Barreiro reier...@gmail.com wrote: Martin, Thanks for your comments. On Mon, Nov 18, 2013 at 9:10 AM, Martin Grigorov mgrigo...@apache.org wrote: Hi, I haven't seen a web application that shows progress bar for download. The browser itself shows such information - Google Chrome in the bottom-left corner, Firefox in its download window/manager. I'm not talking of a progress bar for download. I'm talking of showing a progress bar for file generation (a file that takes too long to generate). Once file is generated download will be triggered. I have implemented a similar use case several times before. 1-Replace the download link by an AJAX link. 2-Launch file generation on a background thread. Pass a class to this thread that serves as context fro passing information from generating thread with web threads (keeping a reference to thisi context on the page). 3-Make a progress panel visible + an AJAX timer that pols the server for progress. Point 3) won't work if the file download is from a resource linked to the page. And it is thru DownloadLink. In this case the ajax timer won't be able to reach the page at all. ? Not following you. Page and thread generating the file will share a context the file generating thread will use to update WEB threads about status of generation (e.g. progress info). All the AJAX timer will do is poll the page and ask for this information. Once file is generated timer will disable itself and trigger download (or display a new panel with download link). Again I have implemented something similar more than once in my life. The app should use a mounted/shared resource. see wicket-extensions' UploadProgressBar and/or follow the progress of https://github.com/l0rdn1kk0n/wicket-bootstrap/issues/262 for example. Both are related to *upload*, not download. Yes I know the limitation of serving resources from pages. Maybe one variation of this is that the timer just points to the mounted resource in order to trigger the actual download. That is not more difficult to achieve that downloading from page. Shall I build a small mini app illustrating this? Maybe it can be useful to other users? -- Regards - Ernesto Reinaldo Barreiro
Re: DownloadLink and ProgressBar
Hi Ernesto, A working example might be helpful. Thank you -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451p4662485.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: DownloadLink and ProgressBar
I think https://github.com/wicketstuff/core/tree/master/jdk-1.6-parent/progressbar-parent has such examples On Mon, Nov 18, 2013 at 10:52 AM, seyaw seidy...@gmail.com wrote: Hi Ernesto, A working example might be helpful. Thank you -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451p4662485.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: DownloadLink and ProgressBar
Thanks for the pointer! On Mon, Nov 18, 2013 at 10:54 AM, Martin Grigorov mgrigo...@apache.orgwrote: I think https://github.com/wicketstuff/core/tree/master/jdk-1.6-parent/progressbar-parent has such examples On Mon, Nov 18, 2013 at 10:52 AM, seyaw seidy...@gmail.com wrote: Hi Ernesto, A working example might be helpful. Thank you -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451p4662485.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Regards - Ernesto Reinaldo Barreiro
RE: DownloadLink and ProgressBar
How do you track the progress of your file generation in order to show the status bar? ~ Thank you, Paul Bors -Original Message- From: seyaw [mailto:seidy...@gmail.com] Sent: Monday, November 18, 2013 3:52 AM To: users@wicket.apache.org Subject: Re: DownloadLink and ProgressBar Hi Ernesto, A working example might be helpful. Thank you -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp46 62451p4662485.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: DownloadLink and ProgressBar
What do you mean? How to compute how much has been generated? Or how to pass this info to the client? Or something else? On Mon, Nov 18, 2013 at 8:00 PM, Paul Bors p...@bors.ws wrote: How do you track the progress of your file generation in order to show the status bar? ~ Thank you, Paul Bors -Original Message- From: seyaw [mailto:seidy...@gmail.com] Sent: Monday, November 18, 2013 3:52 AM To: users@wicket.apache.org Subject: Re: DownloadLink and ProgressBar Hi Ernesto, A working example might be helpful. Thank you -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp46 62451p4662485.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Regards - Ernesto Reinaldo Barreiro
RE: DownloadLink and ProgressBar
Yes Paul, getting the progress of the file generation is one of my challenge right now. The file generation is, in my case is not linear. For example, the time it takes for different procedures is depend on the project size. Currently, I just make a rough estimation so that the user at least can see the file generation is in progress. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451p4662504.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: DownloadLink and ProgressBar
Do you want me to build a little example for this? On Sat, Nov 16, 2013 at 7:59 PM, seyaw seidy...@gmail.com wrote: Thank you Ernesto for your prompt response. 1. is okay. Then for 2. I suppose I start the thread from the onclick method of the ajax link. Can you explain a bit how to start the file genaration with a thread? and for 3. how to pol the server for the progress? Thank you very much -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451p4662460.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org -- Regards - Ernesto Reinaldo Barreiro
Re: DownloadLink and ProgressBar
Dear Ernesto
Thank you very much for your help. Your comments were very helpful.
I solve the problem as you suggested with little modification
1. follow the reference you mention [1]
2. add AjaxLink that will generate a file
add(new AjaxLink(download)
{
@Override
public void onClick(final AjaxRequestTarget target)
{
bar.start(target);
new Thread()
{
public void run()
{
generateFile
}.
3. add a progressbar (from wicketstuff) and on its onFinsh method, trigger
the file download
Progress = new ProgressBar(progress, new ProgressionModel()
{
protected Progression getProgression()
{
return new Progression(progress);
}
})
{
protected void onFinished(AjaxRequestTarget target)
{
download.initiate(target, fileName);
}
progress.add(download)
add(progress)
My only problem now is I have to guess the progress of file genaration , to
be dispalyed on the progress bar
thank you very much
--
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Re: DownloadLink and ProgressBar
Create a class that implements Runnable. Find how to launch a runnable
(e.g. using a thread pool). Keep a reference to this runnable and use some
property of it to track progress. Use an AJAX timer to pol for this value.
On Sun, Nov 17, 2013 at 10:14 AM, seyaw seidy...@gmail.com wrote:
Dear Ernesto
Thank you very much for your help. Your comments were very helpful.
I solve the problem as you suggested with little modification
1. follow the reference you mention [1]
2. add AjaxLink that will generate a file
add(new AjaxLink(download)
{
@Override
public void onClick(final AjaxRequestTarget target)
{
bar.start(target);
new Thread()
{
public void run()
{
generateFile
}.
3. add a progressbar (from wicketstuff) and on its onFinsh method, trigger
the file download
Progress = new ProgressBar(progress, new ProgressionModel()
{
protected Progression getProgression()
{
return new Progression(progress);
}
})
{
protected void onFinished(AjaxRequestTarget target)
{
download.initiate(target, fileName);
}
progress.add(download)
add(progress)
My only problem now is I have to guess the progress of file genaration , to
be dispalyed on the progress bar
thank you very much
--
View this message in context:
http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451p4662463.html
Sent from the Users forum mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
--
Regards - Ernesto Reinaldo Barreiro
DownloadLink and ProgressBar
Hi All,
I have a wicket DownloadLink where I generate file dynamically and download
it. It works.
The process of dynamic File generation might take some time and like to show
ProgressBar which show how much the generation has progressed. How Can I do
that.
I am using wicket 1.5.8
Thank you very much.
add(new DownloadLink(export, new LoadableDetachableModelFile()
{
private static final long serialVersionUID =
840863954694163375L;
@Override
protected File load()
{
File exportTempDir = getGeneratedFile();
}
}
--
View this message in context:
http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451.html
Sent from the Users forum mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
Re: DownloadLink and ProgressBar
Hi,
1-Replace the download link by an AJAX link.
2-Launch file generation on a background thread. Pass a class to this
thread that serves as context fro passing information from generating
thread with web threads (keeping a reference to thisi context on the page).
3-Make a progress panel visible + an AJAX timer that pols the server for
progress.
4-Once file is generated replace progress panel with a download link (or
use trick in [1] to trigger file dowmload)
References
1-
https://cwiki.apache.org/confluence/display/WICKET/AJAX+update+and+file+download+in+one+blow
On Sat, Nov 16, 2013 at 10:29 AM, seyaw seidy...@gmail.com wrote:
Hi All,
I have a wicket DownloadLink where I generate file dynamically and download
it. It works.
The process of dynamic File generation might take some time and like to
show
ProgressBar which show how much the generation has progressed. How Can I do
that.
I am using wicket 1.5.8
Thank you very much.
add(new DownloadLink(export, new LoadableDetachableModelFile()
{
private static final long serialVersionUID =
840863954694163375L;
@Override
protected File load()
{
File exportTempDir = getGeneratedFile();
}
}
--
View this message in context:
http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451.html
Sent from the Users forum mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
--
Regards - Ernesto Reinaldo Barreiro
Re: DownloadLink and ProgressBar
Thank you Ernesto for your prompt response. 1. is okay. Then for 2. I suppose I start the thread from the onclick method of the ajax link. Can you explain a bit how to start the file genaration with a thread? and for 3. how to pol the server for the progress? Thank you very much -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/DownloadLink-and-ProgressBar-tp4662451p4662460.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
