refactoring

redisson/src/main/java/org/redisson/RedissonPriorityDeque.java

@@ -25,11 +25,6 @@ import org.redisson.client.protocol.RedisCommand;
 import org.redisson.client.protocol.RedisCommands;
 import org.redisson.client.protocol.decoder.ListFirstObjectDecoder;
 import org.redisson.command.CommandExecutor;
-import org.redisson.misc.RPromise;
-import org.redisson.misc.RedissonPromise;
-
-import io.netty.util.concurrent.Future;
-import io.netty.util.concurrent.FutureListener;
 
 /**
  * Distributed and concurrent implementation of {@link java.util.Queue}
@@ -142,42 +137,7 @@ public class RedissonPriorityDeque<V> extends RedissonPriorityQueue<V> implement
     }
 
     public RFuture<V> pollLastAsync() {
-        final long threadId = Thread.currentThread().getId();
-        final RPromise<V> result = new RedissonPromise<V>();
-        lock.lockAsync(threadId).addListener(new FutureListener<Void>() {
-            @Override
-            public void operationComplete(Future<Void> future) throws Exception {
-                if (!future.isSuccess()) {
-                    result.tryFailure(future.cause());
-                    return;
-                }
-                
-                RFuture<V> f = commandExecutor.writeAsync(getName(), codec, RedisCommands.RPOP, getName());
-                f.addListener(new FutureListener<V>() {
-                    @Override
-                    public void operationComplete(Future<V> future) throws Exception {
-                        if (!future.isSuccess()) {
-                            result.tryFailure(future.cause());
-                            return;
-                        }
-                        
-                        final V value = future.getNow();
-                        lock.unlockAsync(threadId).addListener(new FutureListener<Void>() {
-                            @Override
-                            public void operationComplete(Future<Void> future) throws Exception {
-                                if (!future.isSuccess()) {
-                                    result.tryFailure(future.cause());
-                                    return;
-                                }
-                                
-                                result.trySuccess(value);
-                            }
-                        });
-                    }
-                });
-            }
-        });
-        return result;
+        return pollAsync(RedisCommands.RPOP, getName());
     }
 
     @Override