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MCOL-987 Add LZ4 compression.

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* Adds CompressInterfaceLZ4 which uses LZ4 API for compress/uncompress.
* Adds CMake machinery to search LZ4 on running host.
* All methods which use static data and do not modify any internal data - become `static`,
  so we can use them without creation of the specific object. This is possible, because
  the header specification has not been modified. We still use 2 sections in header, first
  one with file meta data, the second one with pointers for compressed chunks.
* Methods `compress`, `uncompress`, `maxCompressedSize`, `getUncompressedSize` - become
  pure virtual, so we can override them for the other compression algos.
* Adds method `getChunkMagicNumber`, so we can verify chunk magic number
  for each compression algo.
* Renames "s/IDBCompressInterface/CompressInterface/g" according to requirement.
This commit is contained in:
Denis Khalikov
2021-04-01 17:26:38 +03:00
parent dd12bd3cd0
commit cc1c3629c5
45 changed files with 1311 additions and 549 deletions
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7
writeengine/bulk/we_bulkload.cpp
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@ -337,15 +337,12 @@ int BulkLoad::loadJobInfo(
}
}
// Validate that specified compression type is available
compress::IDBCompressInterface compressor;
for (unsigned kT = 0; kT < curJob.jobTableList.size(); kT++)
{
for (unsigned kC = 0; kC < curJob.jobTableList[kT].colList.size(); kC++)
{
if ( !compressor.isCompressionAvail(
curJob.jobTableList[kT].colList[kC].compressionType) )
if (!compress::CompressInterface::isCompressionAvail(
curJob.jobTableList[kT].colList[kC].compressionType))
{
std::ostringstream oss;
oss << "Specified compression type (" <<