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<?php |
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namespace nebula\component\runnable\target; |
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use Closure; |
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use ReflectionClass; |
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use nebula\component\runnable\target\FileTarget; |
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use nebula\component\runnable\target\MethodTarget; |
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use nebula\component\runnable\target\ClosureTarget; |
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use nebula\component\runnable\target\FunctionTarget; |
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use nebula\component\runnable\target\RunnableTarget; |
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/** |
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* 目标构造器 |
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*/ |
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class TargetBuilder |
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{ |
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/** |
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* 构建目标 |
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* |
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* @param string|array|Closure $runnable |
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* @param array $parameter |
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* @return RunnableTarget |
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*/ |
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public static function build($runnable, array $parameter = []):RunnableTarget |
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{ |
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if ($runnable instanceof Closure) { |
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return new ClosureTarget($runnable, $parameter); |
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} |
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if (\is_array($runnable)) { |
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return new MethodTarget($runnable[0], null, $runnable[1], $parameter); |
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} |
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$target = self::buildWithString($runnable); |
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if (count($parameter) > 0) { |
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$target->setParameter($parameter); |
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} |
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return $target; |
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} |
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/** |
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* 构建可执行对象 |
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* |
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* @param string $command |
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* @return RunnableTarget |
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*/ |
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protected static function buildWithString(string $command):RunnableTarget |
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{ |
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$fileStart = \strrpos($command, '@'); |
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if ($fileStart === 0) { |
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return new FileTarget(substr($command, 1)); |
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} |
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$requireFile = ''; |
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if ($fileStart > 0) { |
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$requireFile = substr($command, $fileStart+1); |
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$command = substr($command, 0, $fileStart); |
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} |
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// for parameter list |
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list($command, $parameter) = self::splitParameter($command); |
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// for method |
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$dynmicsMethod = strpos($command, '->'); |
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$splitLength = strpos($command, '#'); |
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$methodStart = $splitLength ?: strpos($command, '::') ?: $dynmicsMethod; |
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$dynmicsMethod; |
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$parameter = self::buildParameter($parameter); |
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if ($methodStart > 0) { |
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$splitLength = $splitLength > 0 ? 1:2; |
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$methodName = substr($command, $methodStart + $splitLength); |
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$command = substr($command, 0, $methodStart); |
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list($className, $constructParameter) = self::splitParameter($command); |
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$constructParameter = self::buildParameter($constructParameter); |
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$target = new MethodTarget($className, $dynmicsMethod? $constructParameter :null, $methodName, $parameter); |
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} else { |
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$target = new FunctionTarget(self::buildName($command), $parameter); |
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} |
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if (strlen($requireFile)) { |
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$target -> setRequireFile($requireFile); |
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} |
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return $target; |
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} |
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public static function newClassInstance(string $class) |
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{ |
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list($className, $parameter) = self::splitParameter($class); |
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$classRelName = self::buildName($className); |
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if (is_null($parameter)) { |
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return new $classRelName; |
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} |
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$parameters=self::buildParameter($parameter); |
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$classRef= new ReflectionClass($classRelName); |
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return $classRef->newInstanceArgs($parameters); |
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} |
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private static function buildName(string $name) |
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{ |
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if (preg_match('/^[\w\\\\\/.]+$/', $name) !== 1) { |
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throw new \Exception(\sprintf('invaild command name: %s ', $name)); |
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} |
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return str_replace(['.','/'], '\\', $name); |
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} |
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private static function splitParameter(string $command):array |
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{ |
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$parameter = null; |
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if (strrpos($command, ')') === strlen($command) -1) { |
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$paramStart = strpos($command, '('); |
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$parameter = substr($command, $paramStart + 1, strlen($command) - $paramStart - 2); |
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$command = substr($command, 0, $paramStart); |
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} |
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return [$command,$parameter]; |
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} |
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private static function buildParameter(?string $parameter) |
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{ |
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if (is_null($parameter)) { |
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return []; |
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} |
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return self::parseParameter($parameter); |
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} |
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protected static function parseParameter(string $param) |
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{ |
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$param = trim($param); |
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if (strpos($param, '=') === 0) { |
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list($prefix, $value) = explode(':', $param, 2); |
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if (strpos($value, ':') === 0) { |
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$value = base64_decode(substr($value, 1)); |
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} |
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if ($prefix ==='=j' || $prefix ==='=json') { |
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$params = json_decode($value); |
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if (json_last_error() === JSON_ERROR_NONE) { |
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return $params; |
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} |
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throw new \Exception(sprintf('can not parse parameter %s', $param)); |
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} else { |
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$params = unserialize($value); |
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if (is_object($params)) { |
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return [$params]; |
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} |
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return $params; |
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} |
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} else { |
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$params = explode(',', trim($param, ',')); |
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foreach ($params as $index=>$value) { |
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$params[$index]=trim($value); |
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} |
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return $params; |
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} |
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} |
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} |
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dxkite /
suda
