get current command from queue

@return
164754
private final Command takeExecutingCommand() {
		try {
			return this.commandAlreadySent.take();
		} catch (InterruptedException e) {
			Thread.currentThread().interrupt();
		}
		return null;
	}
112139
public OutputHandler getQueuePointOutputHandler(SIBUuid8 meUuid)
  {
    if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
      SibTr.entry(tc, "getQueuePointOutputHandler", new Object[] { meUuid });

    OutputHandler result = null;

    synchronized(_queuePointOutputHandlers)
    {
      result = (OutputHandler) _queuePointOutputHandlers.get(meUuid);
    }

    if (TraceComponent.isAnyTracingEnabled() && tc.isEntryEnabled())
      SibTr.exit(tc, "getQueuePointOutputHandler", result);
    return result;
  }
1255104
private <T extends CommandType> T getCommand() {
        if (command == null) {
            if (getPayload() instanceof String) {
                this.command = (T) marshaller.unmarshal(new StringSource(getPayload(String.class)));
            }
        }

        return (T) command;
    }
1364988
@Nonnull
    public String getCommandName() {
        String c = commandName;
        if (c != null)
            return c;
        return getArchitecture().getCommand();
    }
837925
public static Buffer getQueue() {

        return BufferUtils.synchronizedBuffer(TypedBuffer.decorate(new UnboundedFifoBuffer() {

            /** The serialization version id constant. */
            private static final long serialVersionUID = 606444342980861724L;

            /**
             * Called when the queue is full to remove the oldest element.<p>
             *
             * @see org.apache.commons.collections.buffer.BoundedFifoBuffer#remove()
             */
            @Override
            public Object remove() {

                CmsPublishJobInfoBean publishJob = (CmsPublishJobInfoBean)super.remove();
                return publishJob;
            }
        }, CmsPublishJobInfoBean.class));
    }
161399
def get_command(self):
        
        cmd = None
        count = len(self.command_list)
        if count > 0:
            cmd = self.command_list.pop(0)
        ## If that was the last line, turn off lines_pending
        if count == 1:
            self.cmd_ready = False
        return cmd
67590
public String getCurrent() {

    if (this.index >= this.parameters.length) {
      return null;
    }
    String arg = this.parameters[this.index];
    if (arg == null) {
      throw new NlsNullPointerException("arguments[" + this.index + "]");
    }
    return arg;
  }
236268
private function queueUrl()
    {
        return static function (callable $handler) {
            return function (
                CommandInterface $c,
                RequestInterface $r = null
            ) use ($handler) {
                if ($c->hasParam('QueueUrl')) {
                    $uri = Uri::resolve($r->getUri(), $c['QueueUrl']);
                    $r = $r->withUri($uri);
                }
                return $handler($c, $r);
            };
        };
    }
1076554
public Task poll() {
    	Task result=null;
    	if(activeIndex==0)
    	{
    		result=taskList[0].poll();
    		if(result!=null)
    			result.removeFromQueue0();    		
    	}
    	else
    	{
    		result=taskList[1].poll();
    		if(result!=null)
    			result.removeFromQueue1();
    	}
    	
    	return result;     		    
    }
709622
@Override
    public T get() {
        try {
            latch.await();
            return output.get();
        } catch (InterruptedException e) {
            throw new RedisCommandInterruptedException(e);
        }
    }
405335
public String getCommand() {
        lock.lock();
        try {
            String command = envState.commands.poll();
            if (command == null)
                return "";
            else
                return command;
        } finally {
            lock.unlock();
        }
    }
398729
def get(self):
        
        try:
            item = self._queue.get_nowait()
        except (Empty, PersistEmpty):
            return None

        if self._persistence_path:
            self._queue.task_done()

        return item
41853
protected final int getMeq(){
		if(meq < 0){
			meq = (this.request.getA()==null)? 0 : this.request.getA().rows();
		}
		return meq;
	}
205393
@Override
    protected <T> T getCommand(Class<T> clazz) {
        return getCommand(commands, clazz, this, api, extension);
    }
932556
public function getQueue(): ?Queue
    {
        if (!$this->hasQueue()) {
            $this->setQueue($this->getDefaultQueue());
        }
        return $this->queue;
    }
648058
public @CheckForNull Queue.Executable getCurrentExecutable() {
        lock.readLock().lock();
        try {
            return executable;
        } finally {
            lock.readLock().unlock();
        }
    }
56163
public alluxio.grpc.Command getCommand() {
    return command_ == null ? alluxio.grpc.Command.getDefaultInstance() : command_;
  }