86 lines
2.7 KiB
PHP
86 lines
2.7 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4 foldmethod=marker: */
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// +---------------------------------------------------------------------------
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// | SWAN [ $_SWANBR_SLOGAN_$ ]
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// +---------------------------------------------------------------------------
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// | Copyright $_SWANBR_COPYRIGHT_$
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// +---------------------------------------------------------------------------
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// | Version $_SWANBR_VERSION_$
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// +---------------------------------------------------------------------------
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// | Licensed ( $_SWANBR_LICENSED_URL_$ )
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// +---------------------------------------------------------------------------
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// | $_SWANBR_WEB_DOMAIN_$
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// +---------------------------------------------------------------------------
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namespace Kafka\Protocol;
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/**
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+------------------------------------------------------------------------------
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* Kafka protocol for heart beat api
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+------------------------------------------------------------------------------
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*
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* @package
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* @version $_SWANBR_VERSION_$
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* @copyright Copyleft
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* @author $_SWANBR_AUTHOR_$
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+------------------------------------------------------------------------------
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*/
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class Heartbeat extends Protocol
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{
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// {{{ functions
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// {{{ public function encode()
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/**
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* heartbeat request encode
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*
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* @param array $payloads
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* @access public
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* @return string
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*/
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public function encode($payloads)
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{
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if (!isset($payloads['group_id'])) {
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throw new \Kafka\Exception\Protocol('given heartbeat data invalid. `group_id` is undefined.');
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}
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if (!isset($payloads['generation_id'])) {
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throw new \Kafka\Exception\Protocol('given heartbeat data invalid. `generation_id` is undefined.');
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}
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if (!isset($payloads['member_id'])) {
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throw new \Kafka\Exception\Protocol('given heartbeat data invalid. `member_id` is undefined.');
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}
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$header = $this->requestHeader('kafka-php', self::HEART_BEAT_REQUEST, self::HEART_BEAT_REQUEST);
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$data = self::encodeString($payloads['group_id'], self::PACK_INT16);
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$data .= self::pack(self::BIT_B32, $payloads['generation_id']);
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$data .= self::encodeString($payloads['member_id'], self::PACK_INT16);
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$data = self::encodeString($header . $data, self::PACK_INT32);
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return $data;
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}
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// }}}
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// {{{ public function decode()
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/**
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* decode heart beat response
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*
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* @access public
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* @return array
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*/
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public function decode($data)
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{
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$offset = 0;
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$errorCode = self::unpack(self::BIT_B16_SIGNED, substr($data, $offset, 2));
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$offset += 2;
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return array(
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'errorCode' => $errorCode,
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);
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}
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// }}}
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// }}}
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}
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