Added commands operating on all kind of values

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

@@ -5,6 +5,7 @@ import java.io.InputStream;
 import java.io.OutputStream;
 import java.net.Socket;
 import java.net.UnknownHostException;
+import java.util.List;
 
 public class Client {
     private String host;
@@ -74,12 +75,19 @@ public class Client {
 	return connected;
     }
 
-    protected String getSingleLineReply() {
+    protected String getStatusCodeReply() throws JedisException {
 	return protocol.getSingleLineReply(inputStream);
     }
 
-    public String getBulkReply() {
+    public String getBulkReply() throws JedisException {
 	return protocol.getBulkReply(inputStream);
     }
 
+    public int getIntegerReply() throws JedisException {
+	return protocol.getIntegerReply(inputStream);
+    }
+
+    public List<String> getMultiBulkReply() throws JedisException {
+	return protocol.getMultiBulkReply(inputStream);
+    }
 }

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

@@ -1,21 +1,89 @@
 package redis.clients.jedis;
 
+import java.util.List;
+
 public class Jedis extends Client {
     public Jedis(String host) {
 	super(host);
     }
 
-    public String ping() {
-	return sendCommand("PING").getSingleLineReply();
+    public String ping() throws JedisException {
+	return sendCommand("PING").getStatusCodeReply();
     }
 
-    public String set(String key, String value) {
-	return sendCommand("SET", key, value).getSingleLineReply();
-
+    public String set(String key, String value) throws JedisException {
+	return sendCommand("SET", key, value).getStatusCodeReply();
     }
 
-    public String get(String key) {
+    public String get(String key) throws JedisException {
 	return sendCommand("GET", key).getBulkReply();
     }
 
+    public void quit() {
+	sendCommand("QUIT");
+    }
+
+    public int exists(String key) throws JedisException {
+	return sendCommand("EXISTS", key).getIntegerReply();
+    }
+
+    public int del(String... keys) throws JedisException {
+	return sendCommand("DEL", keys).getIntegerReply();
+    }
+
+    public String type(String key) throws JedisException {
+	return sendCommand("TYPE", key).getStatusCodeReply();
+    }
+
+    public String flushDB() throws JedisException {
+	return sendCommand("FLUSHDB").getStatusCodeReply();
+    }
+
+    public List<String> keys(String pattern) throws JedisException {
+	return sendCommand("KEYS", pattern).getMultiBulkReply();
+    }
+
+    public String randomKey() throws JedisException {
+	return sendCommand("RANDOMKEY").getStatusCodeReply();
+    }
+
+    public String rename(String oldkey, String newkey) throws JedisException {
+	return sendCommand("RENAME", oldkey, newkey).getStatusCodeReply();
+    }
+
+    public int renamenx(String oldkey, String newkey) throws JedisException {
+	return sendCommand("RENAMENX", oldkey, newkey).getIntegerReply();
+    }
+
+    public int dbSize() throws JedisException {
+	return sendCommand("DBSIZE").getIntegerReply();
+    }
+
+    public int expire(String key, int seconds) throws JedisException {
+	return sendCommand("EXPIRE", key, String.valueOf(seconds))
+		.getIntegerReply();
+    }
+
+    public int expireAt(String key, long unixTime) throws JedisException {
+	return sendCommand("EXPIREAT", key, String.valueOf(unixTime))
+		.getIntegerReply();
+    }
+
+    public int ttl(String key) throws JedisException {
+	return sendCommand("TTL", key).getIntegerReply();
+    }
+
+    public String select(int index) throws JedisException {
+	return sendCommand("SELECT", String.valueOf(index))
+		.getStatusCodeReply();
+    }
+
+    public int move(String key, int dbIndex) throws JedisException {
+	return sendCommand("MOVE", key, String.valueOf(dbIndex))
+		.getIntegerReply();
+    }
+
+    public String flushAll() throws JedisException {
+	return sendCommand("FLUSHALL").getStatusCodeReply();
+    }
 }

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

@@ -0,0 +1,12 @@
+package redis.clients.jedis;
+
+public class JedisException extends Exception {
+    /**
+     * 
+     */
+    private static final long serialVersionUID = -2946266495682282677L;
+
+    public JedisException(String message) {
+	super(message);
+    }
+}

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

@@ -10,6 +10,7 @@ public class Protocol {
     public static final String DOLLAR = "$";
     public static final String ASTERISK = "*";
     public static final String PLUS = "+";
+    public static final String MINUS = "-";
     public static final String COLON = ":";
     public static final String COMMAND_DELIMITER = "\r\n";
     public static final int DEFAULT_PORT = 6379;
@@ -17,6 +18,7 @@ public class Protocol {
     public static final byte DOLLAR_BYTE = DOLLAR.getBytes()[0];
     public static final byte ASTERISK_BYTE = ASTERISK.getBytes()[0];
     public static final byte PLUS_BYTE = PLUS.getBytes()[0];
+    public static final byte MINUS_BYTE = MINUS.getBytes()[0];
     public static final byte COLON_BYTE = COLON.getBytes()[0];
 
     public void sendCommand(OutputStream os, String name, String... args) {
@@ -36,10 +38,40 @@ public class Protocol {
 	}
     }
 
-    public String getBulkReply(InputStream is) {
+    public void processError(InputStream is) throws JedisException {
+	String message = readLine(is);
+	throw new JedisException(message);
+    }
+
+    private String readLine(InputStream is) {
+	byte b;
+	StringBuilder sb = new StringBuilder();
+
+	try {
+	    while ((b = (byte) is.read()) != -1) {
+		if (b == '\r') {
+		    b = (byte) is.read();
+		    if (b == '\n') {
+			break;
+		    }
+		}
+		sb.append((char) b);
+	    }
+	} catch (IOException e) {
+	    // TODO Dont know what to do here!
+	}
+	return sb.toString();
+    }
+
+    public String getBulkReply(InputStream is) throws JedisException {
 	String ret = null;
 	try {
-	    if ((byte) is.read() == DOLLAR_BYTE) {
+	    byte b = (byte) is.read();
+	    if (b == MINUS_BYTE) {
+		processError(is);
+	    }
+
+	    if (b == DOLLAR_BYTE) {
 		int len = Integer.parseInt(readLine(is));
 		if (len == -1) {
 		    return null;
@@ -60,26 +92,15 @@ public class Protocol {
 	return ret;
     }
 
-    private String readLine(InputStream is) throws IOException {
-	byte b;
-	StringBuilder sb = new StringBuilder();
-
-	while ((b = (byte) is.read()) != -1) {
-	    if (b == '\r') {
-		b = (byte) is.read();
-		if (b == '\n') {
-		    break;
-		}
-	    }
-	    sb.append((char) b);
-	}
-	return sb.toString();
-    }
-
-    public String getSingleLineReply(InputStream is) {
+    public String getSingleLineReply(InputStream is) throws JedisException {
 	String ret = null;
 	try {
-	    if ((byte) is.read() == PLUS_BYTE) {
+	    byte b = (byte) is.read();
+	    if (b == MINUS_BYTE) {
+		processError(is);
+	    }
+
+	    if (b == PLUS_BYTE) {
 		ret = readLine(is);
 	    }
 	} catch (IOException e) {
@@ -89,24 +110,33 @@ public class Protocol {
 	return ret;
     }
 
-    public int getIntegerReply(InputStream is) {
+    public int getIntegerReply(InputStream is) throws JedisException {
 	int ret = 0;
 	try {
-	    if ((byte) is.read() == COLON_BYTE) {
+	    byte b = (byte) is.read();
+	    if (b == MINUS_BYTE) {
+		processError(is);
+	    }
+	    if (b == COLON_BYTE) {
 		String num = readLine(is);
 		ret = Integer.parseInt(num);
 	    }
 	} catch (IOException e) {
 	    // TODO Not sure that I should return 0
+	    e.printStackTrace();
 	    return 0;
 	}
 	return ret;
     }
 
-    public List<String> getMultiBulkReply(InputStream is) {
+    public List<String> getMultiBulkReply(InputStream is) throws JedisException {
 	List<String> ret = new ArrayList<String>();
 	try {
-	    if ((byte) is.read() == ASTERISK_BYTE) {
+	    byte b = (byte) is.read();
+	    if (b == MINUS_BYTE) {
+		processError(is);
+	    }
+	    if (b == ASTERISK_BYTE) {
 		int num = Integer.parseInt(readLine(is));
 		for (int i = 0; i < num; i++) {
 		    ret.add(getBulkReply(is));