Peter created JCLOUDS-639:
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Summary: Provide methods to get the progress of a running upload
to a blobstore
Key: JCLOUDS-639
URL: https://issues.apache.org/jira/browse/JCLOUDS-639
Project: jclouds
Issue Type: Improvement
Components: jclouds-blobstore
Affects Versions: 1.7.3
Environment: doesn't matter
Reporter: Peter
The jclouds library should provide a way to get progress information about a
running upload to any blobstore (information like how many bytes where already
transferred and optionally average speed of the transfer).
In _JavaUrlHttpCommandExecutorService_, the outputStream is already being
wrapped in a _CountingOutputStream_, but there is no way to call the
_getCount()_ method from outside the method.
There should be some way to access the current count of bytes already sent to
calculate the status of the upload. Additionally a way to get the average speed
would be nice, but I guess this is more optional because you can calculate the
speed on your own if you know how many bytes where already transferred.
Another option to solve this, is to provide access to provider-specific
features like the ProgressListener in the S3-API (see
http://docs.aws.amazon.com/AWSJavaSDK/latest/javadoc/com/amazonaws/services/s3/model/ProgressListener.html),
but I guess that not all vendors have something similar in their APIs, anyway
the first approach would be a more generic one.
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