public function getCursor()

in Aliyun/Log/Client.php [990:1017]
27 lines of code
11 McCabe index (conditional complexity)

    public function getCursor(Aliyun_Log_Models_GetCursorRequest $request){
      $params = array();
      $headers = array();
      $project = $request->getProject()!==null?$request->getProject():'';
      $logstore = $request->getLogstore()!==null?$request->getLogstore():'';
      $shardId = $request->getShardId()!==null?$request->getShardId():'';
      $mode = $request->getMode()!==null?$request->getMode():'';
      $fromTime = $request->getFromTime()!==null?$request->getFromTime():-1;

      if((empty($mode) xor $fromTime==-1)==false){
        if(!empty($mode))
          throw new Aliyun_Log_Exception ( 'RequestError',"Request is failed. Mode and fromTime can not be not empty simultaneously");
        else
          throw new Aliyun_Log_Exception ( 'RequestError',"Request is failed. Mode and fromTime can not be empty simultaneously");
      }
      if(!empty($mode) && strcmp($mode,'begin')!==0 && strcmp($mode,'end')!==0)
        throw new Aliyun_Log_Exception ( 'RequestError',"Request is failed. Mode value invalid:$mode");
      if($fromTime!==-1 && (is_integer($fromTime)==false || $fromTime<0))
        throw new Aliyun_Log_Exception ( 'RequestError',"Request is failed. FromTime value invalid:$fromTime");
      $params['type']='cursor';
      if($fromTime!==-1)$params['from']=$fromTime;
      else $params['mode'] = $mode;
      $resource='/logstores/'.$logstore.'/shards/'.$shardId;
      list($resp,$header) = $this->send("GET",$project,NULL,$resource,$params,$headers); 
      $requestId = isset ( $header ['x-log-requestid'] ) ? $header ['x-log-requestid'] : '';
      $resp = $this->parseToJson ( $resp, $requestId );
      return new Aliyun_Log_Models_GetCursorResponse($resp,$header);
    }