| 1 | package net.spy.memcached.protocol.binary; |
| 2 | |
| 3 | import java.util.Collection; |
| 4 | import java.util.Collections; |
| 5 | |
| 6 | import net.spy.memcached.ops.CASOperation; |
| 7 | import net.spy.memcached.ops.OperationCallback; |
| 8 | import net.spy.memcached.ops.OperationStatus; |
| 9 | import net.spy.memcached.ops.StoreOperation; |
| 10 | import net.spy.memcached.ops.StoreType; |
| 11 | |
| 12 | class StoreOperationImpl extends OperationImpl |
| 13 | implements StoreOperation, CASOperation { |
| 14 | |
| 15 | private static final int SET=1; |
| 16 | private static final int ADD=2; |
| 17 | private static final int REPLACE=3; |
| 18 | |
| 19 | static final int SETQ=0x11; |
| 20 | static final int ADDQ=0x12; |
| 21 | static final int REPLACEQ=0x13; |
| 22 | |
| 23 | // 4-byte flags, 4-byte expiration |
| 24 | static final int EXTRA_LEN = 8; |
| 25 | |
| 26 | private final String key; |
| 27 | private final StoreType storeType; |
| 28 | private final int flags; |
| 29 | private final int exp; |
| 30 | private final long cas; |
| 31 | private final byte[] data; |
| 32 | |
| 33 | private static int cmdMap(StoreType t) { |
| 34 | int rv=-1; |
| 35 | switch(t) { |
| 36 | case set: rv=SET; break; |
| 37 | case add: rv=ADD; break; |
| 38 | case replace: rv=REPLACE; break; |
| 39 | } |
| 40 | // Check fall-through. |
| 41 | assert rv != -1 : "Unhandled store type: " + t; |
| 42 | return rv; |
| 43 | } |
| 44 | |
| 45 | public StoreOperationImpl(StoreType t, String k, int f, int e, |
| 46 | byte[] d, long c, OperationCallback cb) { |
| 47 | super(cmdMap(t), generateOpaque(), cb); |
| 48 | key=k; |
| 49 | flags=f; |
| 50 | exp=e; |
| 51 | data=d; |
| 52 | cas=c; |
| 53 | storeType=t; |
| 54 | } |
| 55 | |
| 56 | @Override |
| 57 | public void initialize() { |
| 58 | prepareBuffer(key, cas, data, flags, exp); |
| 59 | } |
| 60 | |
| 61 | @Override |
| 62 | protected OperationStatus getStatusForErrorCode(int errCode, byte[] errPl) { |
| 63 | OperationStatus rv=null; |
| 64 | switch(errCode) { |
| 65 | case ERR_EXISTS: |
| 66 | rv=EXISTS_STATUS; |
| 67 | break; |
| 68 | case ERR_NOT_FOUND: |
| 69 | rv=NOT_FOUND_STATUS; |
| 70 | break; |
| 71 | } |
| 72 | return rv; |
| 73 | } |
| 74 | |
| 75 | public Collection<String> getKeys() { |
| 76 | return Collections.singleton(key); |
| 77 | } |
| 78 | |
| 79 | public byte[] getBytes() { |
| 80 | return data; |
| 81 | } |
| 82 | |
| 83 | public long getCasValue() { |
| 84 | return cas; |
| 85 | } |
| 86 | |
| 87 | public int getExpiration() { |
| 88 | return exp; |
| 89 | } |
| 90 | |
| 91 | public int getFlags() { |
| 92 | return flags; |
| 93 | } |
| 94 | |
| 95 | public byte[] getData() { |
| 96 | return data; |
| 97 | } |
| 98 | |
| 99 | public StoreType getStoreType() { |
| 100 | return storeType; |
| 101 | } |
| 102 | |
| 103 | } |