public function testIsValid()
{
$this->assertTrue(SubscribeStartPoint::is_valid(SubscribeStartPoint::START_FROM_FIRST_POINT));
$this->assertTrue(SubscribeStartPoint::is_valid(SubscribeStartPoint::START_FROM_CURRENT_POINT));
$normal_position = 65535;
$this->assertTrue(SubscribeStartPoint::is_valid($normal_position));
$abnormal_position = -42;
$this->assertFalse(SubscribeStartPoint::is_valid($abnormal_position));
}
/**
* 内部实现初始化subscriber成员的功能
* @return true on success or false on failure
*/
private function _init($pipe_name, $token, $pipelet_id, $start_point, $conf)
{
// todo 仔细检查参数
if (!SubscribeStartPoint::is_valid($start_point)) {
BigpipeLog::fatal("[%s:%u][%s][invalid start point][val:%d]", __FILE__, __LINE__, __FUNCTION__, $start_point);
return false;
} else {
$this->_start_point = $start_point;
$this->_pipelet_msg_id = $start_point;
}
$this->_pipe_name = $pipe_name;
$this->_token = $token;
$this->_pipelet_id = $pipelet_id;
// 归位操作
$conf->stomp_conf->conn_conf->check_frame = false;
$conf->meta_conf->conn_conf->check_frame = false;
// meta agent不做整包校验
if (false === $this->_meta_adapter->init($conf->meta_conf)) {
BigpipeLog::fatal('[%s:%u][%s][fail to init MetaAgentAdapter]', __FILE__, __LINE__, __FUNCTION__);
return false;
}
// 根据checksum leve修改meta和stomp中connection配置
if (BigpipeChecksumLevel::DISABLE == $conf->checksum_level) {
$this->_enable_checksum = false;
} else {
if (BigpipeChecksumLevel::CHECK_FRAME == $conf->checksum_level || BigpipeChecksumLevel::CHECK_MESSAGE == $conf->checksum_level) {
$this->_enable_checksum = true;
if (BigpipeChecksumLevel::CHECK_FRAME == $conf->checksum_level) {
$conf->stomp_conf->conn_conf->check_frame = true;
}
} else {
BigpipeLog::fatal('[%s:%u][%s][invalid checksum level][checksum level:%d]', __FILE__, __LINE__, __FUNCTION__, $conf->checksum_level);
return false;
}
}
$this->_stomp_adapter = new BigpipeStompAdapter($conf->stomp_conf);
$this->_conn_timeo = $conf->conn_timo;
$this->_pref_conn = $conf->prefer_conn;
$this->_max_fo_cnt = $conf->max_failover_cnt;
$this->_package = new BigpipeMessagePackage();
// 连接meta agent, 初始化一个meta实例
if (!$this->_meta_adapter->connect()) {
BigpipeLog::fatal("[%s:%u][%s][can not connect to meta agent]", __FILE__, __LINE__, __FUNCTION__);
return false;
}
return true;
}
