WAStreamingResponse or WAComboResponse for a single callback?
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WAStreamingResponse or WAComboResponse for a single callback?
 
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Hi Seasiders,
I have a callback that downloads a file which works perfectly until the file size becomes to large and it runs out of memory. My response method looks like this: response attachmentWithFileName: target name; contentType: target mimeType; binary; doNotCache. target readOnlyFileDo: [ :file | [ file atEnd ] whileFalse: [ | byteArray | byteArray := ByteArray new. file read: 4096 into: byteArray. response stream nextPutAll: byteArray. response flush ] ] I can see that a WABufferedResponse does nothing with #flush so I’m wanting to use either the WAComboResponse or the WAStreamingResponse for this callback. However, I can’t see how to configure a single response to use either of these classes. From what I can see, it looks like the response is configured in the server adaptor. Since this single download callback is the only request that needs to stream it’s response, is there a way to use a WACombeResponse or a WAStreaming response for one particular callback? Any advice would be greatly appreciated. Cheers, Jupiter _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
Re: WAStreamingResponse or WAComboResponse for a single callback?
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Some blog post about large uploads:
http://jbrichau.github.io/blog/large-file-upload-in-seaside pf > Hi Seasiders, > > I have a callback that downloads a file which works perfectly until the file size becomes to large and it runs out of memory. > > My response method looks like this: > > response > attachmentWithFileName: target name; > contentType: target mimeType; > binary; > doNotCache. > target > readOnlyFileDo: [ :file | > [ file atEnd ] > whileFalse: [ > | byteArray | > byteArray := ByteArray new. > file read: 4096 into: byteArray. > response stream nextPutAll: byteArray. > response flush ] ] > > I can see that a WABufferedResponse does nothing with #flush so I’m wanting to use either the WAComboResponse or the WAStreamingResponse for this callback. However, I can’t see how to configure a single response to use either of these classes. > > From what I can see, it looks like the response is configured in the server adaptor. Since this single download callback is the only request that needs to stream it’s response, is there a way to use a WACombeResponse or a WAStreaming response for one particular callback? > > Any advice would be greatly appreciated. > > Cheers, > > Jupiter > _______________________________________________ > seaside mailing list > [hidden email] > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
Re: WAStreamingResponse or WAComboResponse for a single callback?
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Hi Petr,
Thanks for the link, however, it’s large downloads via the image I’m looking to solve. I know it’s not ideal to serve large files via the image, however, in this case I need to accommodate them. I’ll keep looking. Thanks again for your response. Cheers, J > On 6 Jan 2017, at 11:48 am, Petr Fischer <[hidden email]> wrote: > > Some blog post about large uploads: > http://jbrichau.github.io/blog/large-file-upload-in-seaside > > pf > > >> Hi Seasiders, >> >> I have a callback that downloads a file which works perfectly until the file size becomes to large and it runs out of memory. >> >> My response method looks like this: >> >> response >> attachmentWithFileName: target name; >> contentType: target mimeType; >> binary; >> doNotCache. >> target >> readOnlyFileDo: [ :file | >> [ file atEnd ] >> whileFalse: [ >> | byteArray | >> byteArray := ByteArray new. >> file read: 4096 into: byteArray. >> response stream nextPutAll: byteArray. >> response flush ] ] >> >> I can see that a WABufferedResponse does nothing with #flush so I’m wanting to use either the WAComboResponse or the WAStreamingResponse for this callback. However, I can’t see how to configure a single response to use either of these classes. >> >> From what I can see, it looks like the response is configured in the server adaptor. Since this single download callback is the only request that needs to stream it’s response, is there a way to use a WACombeResponse or a WAStreaming response for one particular callback? >> >> Any advice would be greatly appreciated. >> >> Cheers, >> >> Jupiter >> _______________________________________________ >> seaside mailing list >> [hidden email] >> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside > _______________________________________________ > seaside mailing list > [hidden email] > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
Re: WAStreamingResponse or WAComboResponse for a single callback?
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Jupiter,
What is large for you ? I think it is not easy to prevent Seaside from taking everything into memory. Zinc can do what you want, using a ZnStreamingEntity plugged into a ZnResponse, if that is an option for you (you could run an extra server in the same image on a different port, or you could play with prefixes). Have a look at ZnStaticFileServerDelegate>>#responseForFile:fromRequest: This method does more than just plain serving the file, but you should be able to see what you want. Sven > On 6 Jan 2017, at 20:41, Jupiter Jones <[hidden email]> wrote: > > Hi Petr, > > Thanks for the link, however, it’s large downloads via the image I’m looking to solve. > > I know it’s not ideal to serve large files via the image, however, in this case I need to accommodate them. > > I’ll keep looking. > > Thanks again for your response. > > Cheers, > > J > >> On 6 Jan 2017, at 11:48 am, Petr Fischer <[hidden email]> wrote: >> >> Some blog post about large uploads: >> http://jbrichau.github.io/blog/large-file-upload-in-seaside >> >> pf >> >> >>> Hi Seasiders, >>> >>> I have a callback that downloads a file which works perfectly until the file size becomes to large and it runs out of memory. >>> >>> My response method looks like this: >>> >>> response >>> attachmentWithFileName: target name; >>> contentType: target mimeType; >>> binary; >>> doNotCache. >>> target >>> readOnlyFileDo: [ :file | >>> [ file atEnd ] >>> whileFalse: [ >>> | byteArray | >>> byteArray := ByteArray new. >>> file read: 4096 into: byteArray. >>> response stream nextPutAll: byteArray. >>> response flush ] ] >>> >>> I can see that a WABufferedResponse does nothing with #flush so I’m wanting to use either the WAComboResponse or the WAStreamingResponse for this callback. However, I can’t see how to configure a single response to use either of these classes. >>> >>> From what I can see, it looks like the response is configured in the server adaptor. Since this single download callback is the only request that needs to stream it’s response, is there a way to use a WACombeResponse or a WAStreaming response for one particular callback? >>> >>> Any advice would be greatly appreciated. >>> >>> Cheers, >>> >>> Jupiter >>> _______________________________________________ >>> seaside mailing list >>> [hidden email] >>> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside >> _______________________________________________ >> seaside mailing list >> [hidden email] >> http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside > > _______________________________________________ > seaside mailing list > [hidden email] > http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside _______________________________________________ seaside mailing list [hidden email] http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside |
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