Added hash commands

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

@@ -1,6 +1,10 @@
 package redis.clients.jedis;
 
+import java.util.HashMap;
+import java.util.Iterator;
 import java.util.List;
+import java.util.Map;
+import java.util.Map.Entry;
 
 public class Jedis extends Client {
     public Jedis(String host) {
@@ -139,4 +143,77 @@ public class Jedis extends Client {
 	return sendCommand("SUBSTR", key, String.valueOf(start),
 		String.valueOf(end)).getBulkReply();
     }
+
+    public int hset(String key, String field, String value)
+	    throws JedisException {
+	return sendCommand("HSET", key, field, value).getIntegerReply();
+    }
+
+    public String hget(String key, String field) throws JedisException {
+	return sendCommand("HGET", key, field).getBulkReply();
+    }
+
+    public int hsetnx(String key, String field, String value)
+	    throws JedisException {
+	return sendCommand("HSETNX", key, field, value).getIntegerReply();
+    }
+
+    public String hmset(String key, Map<String, String> hash)
+	    throws JedisException {
+	String[] params = new String[(hash.size() * 2) + 1];
+	params[0] = key;
+	Iterator<Entry<String, String>> iterator = hash.entrySet().iterator();
+	int i = 1;
+	while (iterator.hasNext()) {
+	    Entry<String, String> entry = iterator.next();
+	    params[i++] = entry.getKey();
+	    params[i++] = entry.getValue();
+	}
+	return sendCommand("HMSET", params).getStatusCodeReply();
+    }
+
+    public List<String> hmget(String key, String... fields)
+	    throws JedisException {
+	String[] params = new String[fields.length + 1];
+	params[0] = key;
+	System.arraycopy(fields, 0, params, 1, fields.length);
+	return sendCommand("HMGET", params).getMultiBulkReply();
+    }
+
+    public int hincrBy(String key, String field, int value)
+	    throws JedisException {
+	return sendCommand("HINCRBY", key, field, String.valueOf(value))
+		.getIntegerReply();
+    }
+
+    public int hexists(String key, String field) throws JedisException {
+	return sendCommand("HEXISTS", key, field).getIntegerReply();
+    }
+
+    public int hdel(String key, String field) throws JedisException {
+	return sendCommand("HDEL", key, field).getIntegerReply();
+    }
+
+    public int hlen(String key) throws JedisException {
+	return sendCommand("HLEN", key).getIntegerReply();
+    }
+
+    public List<String> hkeys(String key) throws JedisException {
+	return sendCommand("HKEYS", key).getMultiBulkReply();
+    }
+
+    public List<String> hvals(String key) throws JedisException {
+	return sendCommand("HVALS", key).getMultiBulkReply();
+    }
+
+    public Map<String, String> hgetAll(String key) throws JedisException {
+	List<String> flatHash = sendCommand("HGETALL", key).getMultiBulkReply();
+	Map<String, String> hash = new HashMap<String, String>();
+	Iterator<String> iterator = flatHash.iterator();
+	while (iterator.hasNext()) {
+	    hash.put(iterator.next(), iterator.next());
+	}
+
+	return hash;
+    }
 }