Usage: %s [-h|--help|help] Arguments: -h|--help|help This usage message Name of the class to reflect and for which to generate a factory. Generates to STDOUT a factory for creating the specified class; this may then be added to your application, and configured as a factory for the class. EOH; /** * @var ConsoleHelper */ private $helper; /** * @var string */ private $scriptName; /** * @param string $scriptName * @param ConsoleHelper $helper */ public function __construct($scriptName = self::DEFAULT_SCRIPT_NAME, ConsoleHelper $helper = null) { $this->scriptName = $scriptName; $this->helper = $helper ?: new ConsoleHelper(); } /** * @param array $args Argument list, minus script name * @return int Exit status */ public function __invoke(array $args) { $arguments = $this->parseArgs($args); switch ($arguments->command) { case self::COMMAND_HELP: $this->help(); return 0; case self::COMMAND_ERROR: $this->helper->writeErrorMessage($arguments->message); $this->help(STDERR); return 1; case self::COMMAND_DUMP: // fall-through default: break; } $generator = new FactoryCreator(); try { $factory = $generator->createFactory($arguments->class); } catch (Exception\InvalidArgumentException $e) { $this->helper->writeErrorMessage(sprintf( 'Unable to create factory for "%s": %s', $arguments->class, $e->getMessage() )); $this->help(STDERR); return 1; } $this->helper->write($factory, false); return 0; } /** * @param array $args * @return \stdClass */ private function parseArgs(array $args) { if (! count($args)) { return $this->createArguments(self::COMMAND_HELP); } $arg1 = array_shift($args); if (in_array($arg1, ['-h', '--help', 'help'], true)) { return $this->createArguments(self::COMMAND_HELP); } $class = $arg1; if (! class_exists($class)) { return $this->createArguments(self::COMMAND_ERROR, null, sprintf( 'Class "%s" does not exist or could not be autoloaded.', $class )); } return $this->createArguments(self::COMMAND_DUMP, $class); } /** * @param resource $resource Defaults to STDOUT * @return void */ private function help($resource = STDOUT) { $this->helper->writeLine(sprintf( self::HELP_TEMPLATE, $this->scriptName ), true, $resource); } /** * @param string $command * @param string|null $class Name of class to reflect. * @param string|null $error Error message, if any. * @return \stdClass */ private function createArguments($command, $class = null, $error = null) { return (object) [ 'command' => $command, 'class' => $class, 'message' => $error, ]; } }