Action::start

public function start(array $inputParams = array())
{
	if(!is_array($inputParams))
		throw new BitrixMainArgumentTypeException("inputParams", "array");

	if(isset($this->actionParams["MODIFYERS"]) && is_array($this->actionParams["MODIFYERS"]))
	{
		$needMoreUserInfo = false;

		foreach($this->actionParams["MODIFYERS"] as $modifyerFunction)
		{
			if(is_callable($modifyerFunction))
			{
				try
				{
					$this->actionParams = call_user_func($modifyerFunction, $this->id, $this->actionParams, $this->serverHostname, $this->userParams);
				}
				catch(NeedMoreUserInfoException $e)
				{
					$this->actionParams = $e->getActionParams();
					$needMoreUserInfo = true;
				}
			}
		}

		if($needMoreUserInfo)
			throw new NeedMoreUserInfoException("Need more user's info", $this->actionParams);
	}

	$result = null;
	$output = '';
	$arOutput = array();
	$command = $this->makeStartCommand($inputParams);

	if($command <> '')
	{
		$result =  $this->shellAdapter->syncExec($command);
		$output = $this->shellAdapter->getLastOutput();
		$arOutput = array();

		if($output <> '')
		{
			$arOut = json_decode($output, true);

			if(is_array($arOut) && !empty($arOut))
				$arOutput = $arOut;
		}

		//error returned by shell
		$error = $this->shellAdapter->getLastError();

		//error returned by bitrix-env
		if(isset($arOutput["error"]) && intval($arOutput["error"]) > 0 && isset($arOutput["message"]) && $arOutput["message"] <> '')
			$error .= " ".$arOutput["message"];

		$this->makeLogRecords($command, $result, $output, $error);
	}
	else //$command == ''
	{
		$result = false;
		$error = 'Cant't create command for action execution';
	}

	$this->result = array(
		$this->id => array(
			"NAME" => isset($this->actionParams["NAME"]) ? $this->actionParams["NAME"] : "[".$this->id."]",
			"RESULT" => $result ? "OK" : "ERROR",
			"OUTPUT" => array(
				"TEXT" => $output,
				"DATA" => $arOutput
			),
			"ERROR" => $error
		)
	);

	return $result;
}