| 1 | // Copyright (c) 2006 Dustin Sallings <dustin@spy.net> |
| 2 | |
| 3 | package net.spy.memcached.protocol.ascii; |
| 4 | |
| 5 | import java.nio.ByteBuffer; |
| 6 | |
| 7 | import net.spy.memcached.ops.NoopOperation; |
| 8 | import net.spy.memcached.ops.OperationCallback; |
| 9 | import net.spy.memcached.ops.OperationState; |
| 10 | import net.spy.memcached.ops.OperationStatus; |
| 11 | import net.spy.memcached.ops.VersionOperation; |
| 12 | |
| 13 | /** |
| 14 | * Operation to request the version of a memcached server. |
| 15 | */ |
| 16 | final class VersionOperationImpl extends OperationImpl |
| 17 | implements VersionOperation, NoopOperation { |
| 18 | |
| 19 | private static final byte[] REQUEST="version\r\n".getBytes(); |
| 20 | |
| 21 | public VersionOperationImpl(OperationCallback c) { |
| 22 | super(c); |
| 23 | } |
| 24 | |
| 25 | @Override |
| 26 | public void handleLine(String line) { |
| 27 | assert line.startsWith("VERSION "); |
| 28 | getCallback().receivedStatus( |
| 29 | new OperationStatus(true, line.substring("VERSION ".length()))); |
| 30 | transitionState(OperationState.COMPLETE); |
| 31 | } |
| 32 | |
| 33 | @Override |
| 34 | public void initialize() { |
| 35 | setBuffer(ByteBuffer.wrap(REQUEST)); |
| 36 | } |
| 37 | |
| 38 | } |