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https://issues.apache.org/jira/browse/FLINK-9599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16517476#comment-16517476
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ASF GitHub Bot commented on FLINK-9599:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/6178#discussion_r196452024
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/rest/FileUploadHandler.java
---
@@ -95,14 +107,22 @@ protected void channelRead0(final
ChannelHandlerContext ctx, final HttpObject ms
final DiskFileUpload fileUpload =
(DiskFileUpload) data;
checkState(fileUpload.isCompleted());
- final Path dest =
uploadDir.resolve(Paths.get(UUID.randomUUID() +
- "_" +
fileUpload.getFilename()));
+ final Path dest =
currentUploadDir.resolve(fileUpload.getFilename());
fileUpload.renameTo(dest.toFile());
-
ctx.channel().attr(UPLOADED_FILE).set(dest);
+ } else if (data.getHttpDataType() ==
InterfaceHttpData.HttpDataType.Attribute) {
+ final Attribute request = (Attribute)
data;
+ // this could also be implemented by
using the first found Attribute as the payload
+ if
(data.getName().equals(HTTP_ATTRIBUTE_REQUEST)) {
+ currentJsonPayload =
request.get();
+ } else {
+ LOG.warn("Received unknown
attribute {}, will be ignored.", data.getName());
+ }
}
}
if (httpContent instanceof LastHttpContent) {
+ ctx.channel().attr(UPLOADED_FILES).set(new
FileUploads(Collections.singleton(currentUploadDir)));
+
ctx.channel().attr(UPLOADED_JSON).set(currentJsonPayload);
--- End diff --
I think it would be better to not store the JSON payload as an `Attribute`
but instead forward it via
`httpContent.replace(Unpooled.wrappedBuffer(currentJsonPayload))`.
> 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
> 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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