public Path getFilePath() {
      return hfilePath;
    }
Represents an HFile waiting to be loaded. An queue is used in this class in order to support
the case where a region has split during the process of the load. When this happens, the HFile
is split into two physical parts across the new region boundary, and each part is added back
into the queue. The import process finishes when the queue is empty.
hbase-server/src/main/java/org/apache/hadoop/hbase/tool/BulkLoadHFiles.java