That is unfortunate because that code works for me. 

There must be some other issue going on. 
AARON ROSENZWEIG / Chat 'n Bike <http://www.chatnbike.com/>
e:  aa...@chatnbike.com <mailto:aa...@chatnbike.com>  t:  (301) 956-2319        
        
        

> On May 7, 2019, at 3:29 PM, Harjinder Singh <harjind...@portfolioaid.com> 
> wrote:
> 
> Hi Aaron,
>  
> This did not work. When I download the file is always 0KB.
>  
> Thanks,
> Harjinder Singh | Sr. Programmer Analyst
> PortfolioAid
> t. 416-479-4413 | e. harjind...@portfolioaid.com 
> <mailto:harjind...@portfolioaid.com>
> a. 166 Pearl Street, Suite 200 Toronto, ON M5H 1L3
> 
>  
> From: Aaron Rosenzweig [mailto:recu...@cocoanutstech.com] On Behalf Of Aaron 
> Rosenzweig
> Sent: Friday, May 3, 2019 5:48 PM
> To: Leigh Kivenko <lei...@portfolioaid.com>
> Cc: Hugi Thordarson <h...@karlmenn.is>; Webobjects-dev@lists.apple.com; 
> Harjinder Singh <harjind...@portfolioaid.com>; Ruveen de Lanerolle 
> <ruve...@portfolioaid.com>
> Subject: Re: Problem Downloading Large Files
>  
> Leigh,
>  
> See if this might help:
>  
> WOResponse aResponse = context().response();
> aResponse.setHeader("application/zip", "Content-Type");
> aResponse.setHeader("" + getZipFile().length() + "", "Content-Length");
> aResponse.setHeader("attachment;filename=\"" + getZipFile().getName() + 
> "\"","Content-Disposition");
> FileInputStream inputStream = new FileInputStream(getZipFile());
> aResponse.setContentStream(inputStream, 0, getZipFile().length());
> return aResponse;
>  
> AARON ROSENZWEIG / Chat 'n Bike <http://www.chatnbike.com/>
> e:  aa...@chatnbike.com <mailto:aa...@chatnbike.com>  t:  (301) 956-2319
> 
> 
> 
> 
> 
> 
> 
> On May 3, 2019, at 4:53 PM, Leigh Kivenko <lei...@portfolioaid.com 
> <mailto:lei...@portfolioaid.com>> wrote:
>  
> Thanks for the quick response Hugi.
>  
> We tried using FileInputStream with setContentStream. It was also giving 0Kb 
> files as well.
>  
> Leigh Kivenko | Chief Technology Officer
> PortfolioAid
> t. 416-479-0523 | e. lei...@portfolioaid.com <mailto:lei...@portfolioaid.com>
>  
> This e-mail may be privileged and confidential. If you received this e-mail 
> in error, please do not use, copy or distribute it, but advise me immediately 
> (by return e-mail or otherwise), and delete the e-mail.
>  
> From: Hugi Thordarson [mailto:h...@karlmenn.is <mailto:h...@karlmenn.is>] 
> Sent: Friday, May 03, 2019 2:07 PM
> To: Leigh Kivenko <lei...@portfolioaid.com <mailto:lei...@portfolioaid.com>>
> Cc: Webobjects-dev@lists.apple.com <mailto:Webobjects-dev@lists.apple.com>
> Subject: Re: Problem Downloading Large Files
>  
> Hi Leigh,
> since the InputStream is called "byteIn" I'm guessing it's a 
> ByteArrayInputStream, meaning the data it contains has been loaded to memory.
> If you have an actual file, you might consider using a FileInputStream 
> instead.
>  
> Cheers,
> - hugi
>  
>  
> On 3 May 2019, at 18:02, Leigh Kivenko <lei...@portfolioaid.com 
> <mailto:lei...@portfolioaid.com>> wrote:
>  
> Hi All,
> I was wondering if anyone has encountered this issue and has been able to 
> resolve it:
>  
> In one page of our web app, users have the ability to download files. We are 
> having an issue when the user attempts to download a large file (> 500MB - 
> zip), where the app throws an Out of Memory error. The download functionality 
> is coded by: 
> 1.       Converting the file to FileInputStream and then to NSData
> 2.       appending the file to the WOResponse.
> a.  response.appendContentData(fileNSData)
>  
> This approach is described here : 
> https://en.wikibooks.org/wiki/WebObjects/Web_Applications/Development/Examples/Return_a_File
>  
> <https://en.wikibooks.org/wiki/WebObjects/Web_Applications/Development/Examples/Return_a_File>
>  
> We also tried using the following approach (also described in link above):
> 1.       Using ByteArrayInputStream 
> Ø  response.setContentStream(byteIn, 4096, length);
>  
> In both cases, the user receives a 0KB file.
>  
> Does anyone have any recommended approaches to serve a large file through the 
> application?  Please note the file lives on the application server but for 
> security purposes we wouldn’t want it directly accessible.
>  
> Thanks,
> Leigh Kivenko | Chief Technology Officer
> PortfolioAid
> t. 416-479-0523 | e. lei...@portfolioaid.com <mailto:lei...@portfolioaid.com>
>  
> This e-mail may be privileged and confidential. If you received this e-mail 
> in error, please do not use, copy or distribute it, but advise me immediately 
> (by return e-mail or otherwise), and delete the e-mail.
>  
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