topic Re: download file in activiti UI in Alfresco Forum

download file in activiti UI (vaadin 6)

msaballa — Tue, 17 Jan 2017 02:05:05 GMT

Hi All,Need your help with this one. Has anyone tried downloading a file in activiti BPM?I'm new with activity BPM and original developer of the code created a customised button to retrieve csv files in activiti BPM as below.public void buttonClick(ClickEvent event) {logger.info("preparing download

Re: download file in activiti UI

gdharley — Wed, 18 Jan 2017 17:42:14 GMT

Rathe than answering the question you ultimately ask, I think the easiest way for you to force a save to file dialogue is to simply change the mime type from text/plain to application/octet-stream or some other mime type that is perceived to be binary.

Cheers,

Greg

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Re: download file in activiti UI

msaballa — Wed, 18 Jan 2017 20:09:31 GMT

Hi Greg

Thanks for your reply. That doesn't seem to work though. In my case, a new window is opened instead.

public void buttonClick(ClickEvent event) {

logger.info("preparing download resource");

String csvdata = formProperty.getValue();

// the first line is the filename

filename = csvdata.substring(0, csvdata.indexOf('\r'));

csvdata = csvdata.substring(csvdata.indexOf('\r') + 2, csvdata.length());

logger.info("downloading file " + filename);

StreamResource resource = new StreamResource(new StringStreamSource(csvdata), filename, ExplorerApp.get());

// resource.setMIMEType("text/plain");

resource.setMIMEType("application/octet-stream");

ExplorerApp.get().getMainWindow().open(resource,"downloadWindow");

//downloadWindow.setVisible(true);

}

Regards,

Mark

Re: download file in activiti UI

gdharley — Wed, 18 Jan 2017 22:35:58 GMT

Hmm, ok. Havent spent much time with the explorer app.
Probably need to play around with it. I don't suppose you can attach your project?

Re: download file in activiti UI (vaadin 6)

msaballa — Thu, 19 Jan 2017 22:17:54 GMT

Hi,

I don't think I can.

Although, would you think the one you advised me with won't work in vaadin 6.8.8? That's the current version I have now.