public long getNumPositivesForTesting(int chunk) {
    return numPositivesPerChunk[chunk];
  }
De-serialization for compound Bloom filter metadata. Must be consistent with what
{@link CompoundBloomFilterWriter} does.
@param meta    serialized Bloom filter metadata without any magic blocks
@param reader  reader for hfile
@param metrics for collecting bloom filter metrics. may be null
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CompoundBloomFilter.java