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https://issues.apache.org/jira/browse/FLINK-9599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16519393#comment-16519393
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ASF GitHub Bot commented on FLINK-9599:
---------------------------------------
Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/6189#discussion_r197142993
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/rest/FileUploadHandler.java
---
@@ -106,7 +106,7 @@ protected void channelRead0(final ChannelHandlerContext
ctx, final HttpObject ms
final HttpContent httpContent = (HttpContent)
msg;
currentHttpPostRequestDecoder.offer(httpContent);
- while (currentHttpPostRequestDecoder.hasNext())
{
+ while (httpContent !=
LastHttpContent.EMPTY_LAST_CONTENT && currentHttpPostRequestDecoder.hasNext()) {
--- End diff --
As far as i can tell we are using the encoder correctly, but the decoder
usage wasn't written against the encoder, but (i guess) only against `curl` or
the web UI that never send an empty LAST_HTTP_CONTENT, but a
`DefaultLastHttpContent` instead.
Interestingly enough, if you use anything but the netty encoder, without an
`instanceof LastHttpContent` check it isn't possible to know whether the
decoder is done or not.
> Implement generic mechanism to receive files via rest
> -----------------------------------------------------
>
> Key: FLINK-9599
> URL: https://issues.apache.org/jira/browse/FLINK-9599
> Project: Flink
> Issue Type: New Feature
> Components: REST
> Reporter: Chesnay Schepler
> Assignee: Chesnay Schepler
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.6.0
>
>
> As a prerequisite for a cleaner implementation of FLINK-9280 we should
> * extend the RestClient to allow the upload of Files
> * extend FileUploadHandler to accept mixed multi-part requests (json + files)
> * generalize mechanism for accessing uploaded files in {{AbstractHandler}}
> Uploaded files can be forwarded to subsequent handlers as an attribute,
> similar to the existing special case for the {{JarUploadHandler}}. The JSON
> body can be forwarded by replacing the incoming http requests with a simple
> {{DefaultFullHttpRequest}}.
> Uploaded files will be retrievable through the {{HandlerRequest}}.
> I'm not certain if/how we can document that a handler accepts files.
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