Ah, that explains it then.
I am using `formFields('file.as[StrictForm.FileData])` to extract the
file from the form. So is there a way I can get that data and not put it
in memory?
Thanks!
On Wed, Jul 13, 2016, at 16:00, Konrad Malawski wrote:
> `Strict` indicates "the entire thing is in memory. (run away before it
> blows up!!!)".
>
> How did you get this entity? Normally we don't expose Strict entities,
> you likely have converted to it explicitly => thus, loading the entire
> upload into memory.
> Don't do toStrict or any of these operations, just stream directly
> into a file.
>
> --
> Konrad `ktoso` Malawski
> Akka[1] @ Lightbend[2]
>
> On 13 July 2016 at 15:58:22, Simão Mata (sima...@gmail.com) wrote:
>>
>>
>>
>> Hi,
>>
>> I would like to ask for a clarification on how
>> `mapMaterializedValue` works, I think this might be the cause for
>> this problem.
>>
>> I am trying to receive a large file upload, and I am copying to the
>> file system using something like:
>>
>> val sink = FileIO .toPath(path) .mapMaterializedValue(_.map(result
>> => (uri, result.count)))
>>
>> val source = fileData.entity.dataBytes // fileData is a
>> StrictForm.FileData
>>
>> val f = source.to(sink).run()
>>
>> This somehow causes the file to be copied to memory, which causes
>> the jvm to stop with an out of memory exception.
>>
>> Can `mapMaterializedValue` be the cause for this behaviour?
>>
>> Thank you, Simao
>> --
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Links:
1. http://akka.io
2. http://lightbend.com
--
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