| public setVersion ( string $version ) : GELFMessage | ||
| $version | string | |
| Résultat | GELFMessage | |
/**
* Publishes a GELFMessage, returns false if an error occured during write
*
* @throws UnexpectedValueException
* @param unknown_type $message
* @return boolean
*/
public function publish(GELFMessage $message)
{
// Check if required message parameters are set
if (!$message->getShortMessage() || !$message->getHost()) {
throw new UnexpectedValueException('Missing required data parameter: "version", "short_message" and "host" are required.');
}
// Set Graylog protocol version
$message->setVersion(self::GRAYLOG2_PROTOCOL_VERSION);
// Encode the message as json string and compress it using gzip
$preparedMessage = $this->getPreparedMessage($message);
// Open a udp connection to graylog server
$socket = $this->getSocketConnection();
// Several udp writes are required to publish the message
if ($this->isMessageSizeGreaterChunkSize($preparedMessage)) {
// A unique id which consists of the microtime and a random value
$messageId = $this->getMessageId();
// Split the message into chunks
$messageChunks = $this->getMessageChunks($preparedMessage);
$messageChunksCount = count($messageChunks);
// Send chunks to graylog server
foreach (array_values($messageChunks) as $messageChunkIndex => $messageChunk) {
$bytesWritten = $this->writeMessageChunkToSocket($socket, $messageId, $messageChunk, $messageChunkIndex, $messageChunksCount);
if (false === $bytesWritten) {
// Abort due to write error
return false;
}
}
} else {
// A single write is enough to get the message published
if (false === $this->writeMessageToSocket($socket, $preparedMessage)) {
// Abort due to write error
return false;
}
}
// This increases stability a lot if messages are sent in a loop
// A value of 20 means 0.02 ms
usleep(20);
// Message successful sent
return true;
}
