("Starting download of ", filename, transferState, upload. String md5sum = urlConnection.getHeaderField("x-amz-meta-md5sum") The default mode is a copy in the cloud, where data is copied between two buckets without uploading or downloading. But as a failure scenario, use the DSS data. Long contentLength = urlConnection.getContentLengthLong() In some cases (reposted files) data as reported by DSS is incorrect. URLConnection urlConnection = awsURI.toURL().openConnection() ![]() In this code snippet awsURI is the signed URL returned by DSS : I have been able to do this partially - technically you are still downloading to the local machine but by passing the streams around you do it in a streaming way, from one inputStream to another, and avoid having to create a local file to then upload. S3 also provides access to manage data across websites, mobile applications, backup and restore big data analytics, and many other applications.
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