Allow configuration of default properties of blosc compressor. #42
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The goal of this PR is to allow the user to set the number of threads used for blosc decompression on the auto-created
Compressor
objects during read operations.This is done via
CompressorFactory.BloscCompressor.defaultProperties.put("nthreads", 8);
This was the least invasive/modifying approach I could find (in conjunction with PR #41 for user defined compressor objects). However, it does expose the actual
BloscCompressor
class and the implementation of the map. I'd be happy to implement something more extensive keeps the class implementation private if the maintainers prefer.I also only updated the
nthreads
property to pull from thedefaultProperties
map rather than the default constants. If this approach is acceptable, I can change the other properties to have the same behavior.