src/java/iotcloud/SlotIndexer.java

   1 package iotcloud;
   2
   3 class SlotIndexer {
   4         private Slot[] updates;
   5         private SlotBuffer buffer;
   6         private long firstslotseqnum;
   7
   8         SlotIndexer(Slot[] _updates, SlotBuffer _buffer) {
   9                 buffer = _buffer;
  10                 updates = _updates;
  11                 firstslotseqnum = updates[0].getSequenceNumber();
  12         }
  13
  14         Slot getSlot(long seqnum) {
  15                 if (seqnum >= firstslotseqnum) {
  16                         int offset = (int) (seqnum - firstslotseqnum);
  17                         if (offset >= updates.length)
  18                                 throw new Error("Invalid Slot Sequence Number Reference");
  19                         else
  20                                 return updates[offset];
  21                 } else
  22                         return buffer.getSlot(seqnum);
  23         }
  24 }