Several changes have been added to this commit:

- Add asking to cluster commands
- Make jedis cluster return connection to original pool
- Add tests for MOVED and ASK cluster responses
- Refactor connection handler to recalculate connections based on slots

This commit makes the first usable version of Jedis along with Redis Cluster

src/main/java/redis/clients/jedis/JedisClusterCommand.java

@@ -1,27 +1,41 @@
 package redis.clients.jedis;
 
 import redis.clients.jedis.exceptions.JedisAskDataException;
+import redis.clients.jedis.exceptions.JedisClusterException;
 import redis.clients.jedis.exceptions.JedisMovedDataException;
+import redis.clients.jedis.tests.utils.JedisClusterCRC16;
 
 public abstract class JedisClusterCommand<T> {
 	
-	private JedisClusterConnectionHandler connectionHandler;
 	private boolean asking = false;
 	
+	private JedisClusterConnectionHandler connectionHandler;
+//	private boolean asking = false;
+	
 	public JedisClusterCommand(JedisClusterConnectionHandler connectionHandler) {
 		this.connectionHandler = connectionHandler;
 	}
 
 	public abstract T execute();
 	
-	public T run() {
+	public T run(String key) {
 		try {
+			if (key == null) {
+				throw new JedisClusterException("No way to dispatch this command to Redis Cluster.");
+			}
+			connectionHandler.getConnectionFromSlot(JedisClusterCRC16.getSlot(key));
+			if (asking) {
+				//TODO: Pipeline asking with the original command to make it faster....
+				connectionHandler.getConnection().asking();
+			}
 			return execute();
 		} catch (JedisMovedDataException jme) {
 			this.connectionHandler.assignSlotToNode(jme.getSlot(), jme.getTargetNode());
-			return execute();
+			return run(key);
 		} catch (JedisAskDataException jae) {
-			throw jae;
+			asking = true;
+			this.connectionHandler.assignSlotToNode(jae.getSlot(), jae.getTargetNode());
+			return run(key);
 		}
 	}
 }