Merge pull request #1091 in CORE/base-third from feature/10.0 to research/10.0

* commit '84a5d135b0aeb64b348157057da67c22acad556f':
  DEC-15495 redis命令支持替换

fine-jedis/src/main/java/com/fr/third/redis/clients/jedis/Protocol.java

@@ -1,10 +1,5 @@
 package com.fr.third.redis.clients.jedis;
 
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Locale;
-
 import com.fr.third.redis.clients.jedis.commands.ProtocolCommand;
 import com.fr.third.redis.clients.jedis.exceptions.JedisAskDataException;
 import com.fr.third.redis.clients.jedis.exceptions.JedisBusyException;
@@ -17,6 +12,13 @@ import com.fr.third.redis.clients.jedis.util.RedisInputStream;
 import com.fr.third.redis.clients.jedis.util.RedisOutputStream;
 import com.fr.third.redis.clients.jedis.util.SafeEncoder;
 
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Locale;
+import java.util.Map;
+
 public final class Protocol {
 
   private static final String ASK_RESPONSE = "ASK";
@@ -79,13 +81,44 @@ public final class Protocol {
   public static final byte[] POSITIVE_INFINITY_BYTES = "+inf".getBytes();
   public static final byte[] NEGATIVE_INFINITY_BYTES = "-inf".getBytes();
 
+  public static Map<ProtocolCommand, ProtocolCommand> commandMapping = new HashMap<ProtocolCommand, ProtocolCommand>();
+
+  public static volatile int commandMappingSize = 0;
+
+  public static synchronized void initCommandMapping(Map<String, String> mapping) {
+
+    commandMapping.clear();
+    for (Map.Entry<String, String> entry : mapping.entrySet()) {
+      ProtocolCommand defaultCommand = Command.fromName(entry.getKey());
+      if (defaultCommand != null) {
+        commandMapping.put(defaultCommand, new ProtocolCommand() {
+          @Override
+          public byte[] getRaw() {
+            return SafeEncoder.encode(entry.getValue());
+          }
+        });
+      }
+    }
+
+    commandMappingSize = commandMapping.size();
+  }
+
   private Protocol() {
     // this prevent the class from instantiation
   }
 
   public static void sendCommand(final RedisOutputStream os, final ProtocolCommand command,
       final byte[]... args) {
-    sendCommand(os, command.getRaw(), args);
+    ProtocolCommand realCommand = getRealCommand(command);
+    sendCommand(os, realCommand.getRaw(), args);
+  }
+
+  private static ProtocolCommand getRealCommand(ProtocolCommand command) {
+    if (commandMappingSize > 0 && commandMapping.containsKey(command)) {
+      return commandMapping.get(command);
+    }
+
+    return command;
   }
 
   private static void sendCommand(final RedisOutputStream os, final byte[] command,
@@ -268,6 +301,17 @@ public final class Protocol {
     public byte[] getRaw() {
       return raw;
     }
+
+    public static ProtocolCommand fromName(String commandName) {
+      Command[] commands = values();
+      for (Command command : commands) {
+        if (command.name().equals(commandName)) {
+          return command;
+        }
+      }
+
+      return null;
+    }
   }
 
   public static enum Keyword {