| 1 | /** |
| 2 | * |
| 3 | */ |
| 4 | package net.spy.memcached.protocol; |
| 5 | |
| 6 | import net.spy.memcached.ops.GetOperation; |
| 7 | import net.spy.memcached.ops.OperationStatus; |
| 8 | |
| 9 | /** |
| 10 | * Wrapper callback for use in optimized gets. |
| 11 | */ |
| 12 | public class GetCallbackWrapper implements GetOperation.Callback { |
| 13 | |
| 14 | private static final OperationStatus END= |
| 15 | new OperationStatus(true, "END"); |
| 16 | |
| 17 | private boolean completed=false; |
| 18 | private int remainingKeys=0; |
| 19 | private GetOperation.Callback cb=null; |
| 20 | |
| 21 | public GetCallbackWrapper(int k, GetOperation.Callback c) { |
| 22 | super(); |
| 23 | remainingKeys=k; |
| 24 | cb=c; |
| 25 | } |
| 26 | |
| 27 | public void gotData(String key, int flags, byte[] data) { |
| 28 | assert !completed : "Got data for a completed wrapped op"; |
| 29 | cb.gotData(key, flags, data); |
| 30 | if(--remainingKeys == 0) { |
| 31 | // Fake a status line |
| 32 | receivedStatus(END); |
| 33 | } |
| 34 | } |
| 35 | |
| 36 | public void receivedStatus(OperationStatus status) { |
| 37 | if(!completed) { |
| 38 | cb.receivedStatus(status); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | public void complete() { |
| 43 | assert !completed; |
| 44 | cb.complete(); |
| 45 | completed=true; |
| 46 | } |
| 47 | |
| 48 | } |