@Override
      public void recordBlockSize(IntConsumer blockSizeConsumer) {
        this.delegate.recordBlockSize(blockSizeConsumer);
      }
Creates a half file reader for a hfile referred to by an hfilelink.
@param context   Reader context info
@param fileInfo  HFile info
@param cacheConf CacheConfig
@param r         original reference file (contains top or bottom)
@param conf      Configuration
hbase-server/src/main/java/org/apache/hadoop/hbase/io/HalfStoreFileReader.java