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<?php |
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/** |
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* Type frame |
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* User: moyo |
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* Date: 27/02/2018 |
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* Time: 2:32 PM |
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*/ |
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namespace Carno\NSQ\Protocol; |
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use Carno\NSQ\Types\Message; |
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class Frame |
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{ |
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// types |
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private const TYPE_RESPONSE = 0; |
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private const TYPE_ERROR = 1; |
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private const TYPE_MESSAGE = 2; |
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// responses |
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private const RESP_OK = 'OK'; |
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private const RESP_HEARTBEAT = '_heartbeat_'; |
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private const RESP_CLOSE_WAIT = 'CLOSE_WAIT'; |
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/** |
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* @var string |
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*/ |
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private $response = null; |
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/** |
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* @var string |
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*/ |
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private $error = null; |
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/** |
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* @var Message |
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*/ |
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private $message = null; |
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/** |
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* Frame constructor. |
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* @param int $sized |
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* @param Buffer $buffer |
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*/ |
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public function __construct(int $sized, Buffer $buffer) |
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{ |
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switch (Binary::int($buffer)) { |
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case self::TYPE_RESPONSE: |
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$this->response = Binary::string($buffer, $sized - 4); |
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break; |
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case self::TYPE_ERROR: |
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$this->error = Binary::string($buffer, $sized - 4); |
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break; |
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case self::TYPE_MESSAGE: |
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$timestamp = Binary::long($buffer); |
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$attempts = Binary::short($buffer); |
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$identify = Binary::string($buffer, 16); |
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$payload = Binary::string($buffer, $sized - 30); |
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$this->message = (new Message($payload))->meta($identify, $attempts, $timestamp); |
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break; |
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default: |
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$this->error = Binary::string($buffer, $sized - 4); |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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public function isResponse() : bool |
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{ |
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return $this->response !== null; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isOK() : bool |
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{ |
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return $this->response === self::RESP_OK; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isHeartbeat() : bool |
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{ |
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return $this->response === self::RESP_HEARTBEAT; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isCloseWait() : bool |
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{ |
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return $this->response === self::RESP_CLOSE_WAIT; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isError() : bool |
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{ |
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return $this->error !== null; |
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} |
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/** |
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* @return string |
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*/ |
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public function getError() : string |
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{ |
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return $this->error; |
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} |
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/** |
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* @return bool |
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*/ |
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public function isMessage() : bool |
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{ |
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return $this->message !== null; |
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} |
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/** |
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* @return Message |
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*/ |
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public function getMessage() : Message |
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{ |
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return $this->message; |
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} |
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} |
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carno-php /
nsq
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