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https://issues.apache.org/jira/browse/COMPRESS-207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13781324#comment-13781324
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Stefan Bodewig commented on COMPRESS-207:
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somehow I've never paid attention to this issue.
What is the use-case behind this, what are you going to use the calbacks for?
Progress report inside a UI?
You don't get those for gzip, xz or now lzma either. Why in bzip2?
> add notifier support for new block in BZip2CompressorInputStream
> ----------------------------------------------------------------
>
> Key: COMPRESS-207
> URL: https://issues.apache.org/jira/browse/COMPRESS-207
> Project: Commons Compress
> Issue Type: New Feature
> Components: Compressors
> Affects Versions: 1.4.1
> Reporter: Thomas Meyer
> Priority: Minor
> Labels: API, bzip
> Attachments: BZip2CompressorInputStream-add-newBlock-notifier.patch,
> BZip2CompressorInputStream-add-newBlock-notifier.patch,
> BZip2CompressorInputStream-add-newBlock-notifier.patch
>
>
> hi,
> attached patch enables an program to add a listener when a new bzip2
> block is detected.
> The notifier is called with:
> - xxx.newBlock(this, currBlockPosition)
> - this = the current BZip2CompressorInputStream object
> - currBlockPosition = The offset (i.e. start position) in the compressed
> input stream of the current block
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