public ReplicationLoadSink build() {
      return new ReplicationLoadSink(ageOfLastAppliedOp, timestampsOfLastAppliedOp,
        timestampStarted, totalOpsProcessed);
    }
A HBase ReplicationLoad to present MetricsSink information
hbase-client/src/main/java/org/apache/hadoop/hbase/replication/ReplicationLoadSink.java