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https://issues.apache.org/jira/browse/JCLOUDS-769?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14378097#comment-14378097
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Nikola Knezevic edited comment on JCLOUDS-769 at 3/24/15 4:28 PM:
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So, I made some rudimentary, local support for S3 (and Swift) streaming by
implementing my own SequentialMPUStrategy, and injecting it. However, it is far
from satisfactory and looks like a hack. This would be impossible to do w/o
Sequential strategy. Now, I could push this code for a review, but I think in
order to include it, we first need to change what jclouds expose to the user.
was (Author: knl):
So, I mad some rudimentary, local support for S3 streaming by implementing my
own SequentialMPUStrategy, and injecting it. However, it is far from
satisfactory and looks like a hack. This would be impossible to do w/o
Sequential strategy. Now, I could push this code for a review, but I think in
order to include it, we first need to change what jclouds expose to the user.
> Upload blob from stream
> -----------------------
>
> Key: JCLOUDS-769
> URL: https://issues.apache.org/jira/browse/JCLOUDS-769
> Project: jclouds
> Issue Type: New Feature
> Components: jclouds-blobstore
> Affects Versions: 1.8.1
> Reporter: Akos Hajnal
> Labels: multipart, s3
>
> Dear Developers,
> It was not easy, but using S3 API, it was possible to upload a large blob
> from stream - without knowing its size in advance (and storing all the data
> locally). I found solutions using jclouds' aws-s3 specific API (some async
> interface), but I really miss this feature from jclouds' general API.
> My dream is to have a method like:
> blob.getOutputStream() into which I can write as many data as I want,
> which pushes data to the storage simultaneously until I close the stream.
> (When I used S3, I created a wrapper class extending OutputStream, which
> initiates multipart upload, buffers data written to the output stream, writes
> a part when the buffer is full, and finalizes multipart upload on stream
> close.)
> I don't know it is possible for all providers, but I really miss it...
> Thank you,
> Akos Hajnal
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