/**
* @param \Neoxygen\NeoClient\Event\HttpClientPreSendRequestEvent $event
*/
public function onPreHttpRequestSend(HttpClientPreSendRequestEvent $event)
{
$conn = $event->getRequest()->getConnection();
$request = $event->getRequest();
$mode = $request->hasQueryMode() ? $request->getQueryMode() : 'ASSUMED WRITE';
$this->logger->log('debug', sprintf('Sending "%s" request to the "%s" connection', $mode, $conn));
}
public function onPreSend(HttpClientPreSendRequestEvent $event)
{
$request = $event->getRequest();
$conn = $request->getConnection();
if (isset($this->fails[$conn]) && $this->fails[$conn] >= 5) {
if ($request->hasQueryMode()) {
if ($request->getQueryMode() === 'READ') {
if ($this->connectionManager->hasNextSlave([$conn])) {
$next = $this->connectionManager->getNextSlave([$conn]);
$request->setInfoFromConnection($this->connectionManager->getConnection($next));
}
}
}
}
}
public function onPreSend(HttpClientPreSendRequestEvent $event)
{
$request = $event->getRequest();
$conn = $request->getConnection();
if (isset($this->fails[$conn]) && $this->fails[$conn] >= 5) {
if ($request->hasQueryMode()) {
if ($request->getQueryMode() === 'READ') {
if ($this->connectionManager->hasNextSlave([$conn])) {
$next = $this->connectionManager->getNextSlave([$conn]);
$this->setHaPrimarySlave($next);
$request->setInfoFromConnection($this->connectionManager->getConnection($next));
}
}
}
}
if (null !== $this->masterWriteFails && $request->getQueryMode() == 'WRITE' && $this->masterWriteFails >= 5) {
if (null !== $this->newMasterDetected) {
$this->setHaNewMaster($this->newMasterDetected);
$conn = $this->connectionManager->getConnection($this->newMasterDetected);
Client::log('debug', sprintf('Automatic Write connection change after 5 write failures on Master. Changing to the "%s" connection', $this->newMasterDetected));
$request->setInfoFromConnection($conn);
}
}
}
/**
* Add specific headers to the Request object for helping HA proxies to determine if it is a read or write query.
*
* @param \Neoxygen\NeoClient\Event\HttpClientPreSendRequestEvent $event
*/
public function onPreSendHAHeaders(HttpClientPreSendRequestEvent $event)
{
if ($event->getRequest()->getQueryMode() == 'WRITE') {
$event->getRequest()->setHeader($this->queryModeHeaderName, $this->queryModeWriteQueryHeaderValue);
} elseif ($event->getRequest()->getQueryMode() == 'READ') {
$event->getRequest()->setHeader($this->queryModeHeaderName, $this->queryModeReadQueryHeaderValue);
}
}
