tree 763d76a9dfb5eb30b40e7654bf8437e0c814a453
parent 3dc72457ac93d3d36560dd8c0665c89f8ec62661
author Martin Wiesner <mawiesne@users.noreply.github.com> 1715064625 +0200
committer GitHub <noreply@github.com> 1715064625 +0200
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OPENNLP-1556 Improve speed of checksum computation in TwoPassDataIndexer (#600)

- adjusts TwoPassDataIndexer to make use of JDK's built-in CheckedOutputStream / CheckedInputStream for checksum (CRC32c) computations
- removes untested class HashSumEventStream which is just a wrapper for calling a slow toString() in Event to get some bytes to use for the computation of a checksum
- provides a HashSumEventStream replacement: ChecksumEventStream which makes use of the faster CRC32c checksum computation, avoiding cryptographic hash functions such as MD5
- adds JUnit tests for ChecksumEventStream