private function connect(Request $request)
{
$promise = httpClient()->request($request, [HttpClient::OP_DISCARD_BODY => true, HttpClient::OP_MS_TRANSFER_TIMEOUT => null]);
// yes, yes not spec compliant but it *gets the job done* until we can implement something better
$chunkCombiner = new JsonChunkCombiner();
$stats = new Stats();
$logger = $this->logger;
$callback = function (array $notifyData) use($chunkCombiner, $stats, $logger) {
$event = array_shift($notifyData);
if ($event === Notify::REQUEST_SENT) {
$stats->increment('connectionAttempts');
$msg = "Connection request #{$stats->connectionAttempts()} sent";
$logger->info($msg);
}
if ($event === Notify::RESPONSE_HEADERS) {
$stats->streamEstablished();
$prettyTime = date('Y-m-d H:i:s', $stats->startTime());
$logger->info("Twitter responded at {$prettyTime} UTC");
}
if ($event === Notify::RESPONSE_BODY_DATA) {
$data = trim($notifyData[0]);
if (!empty($data)) {
$chunkCombiner->push($data);
if ($chunkCombiner->isValidJson()) {
// TODO pass $json to Storage when implemented
$json = $chunkCombiner->getCombinedChunksAsJson();
$chunkCombiner->clearChunks();
$stats->increment('statusUpdates');
}
}
}
};
$promise->watch($callback);
$promise->when(function ($err, $response) use($logger) {
if ($err) {
$exceptionType = get_class($err);
$msg = "{$exceptionType}('{$err->getMessage()}') in {$err->getFile()} on L{$err->getLine()}";
$logger->critical($msg);
// TODO if an exception was thrown should decide if we want to stop execution; this should probably not happen in normal circumstances
} else {
$msg = "Connection ended: {$response->getStatus()} {$response->getReason()}";
$logger->error($msg);
}
// TODO remove this when we have the reconnection/backoff implemented
\Amp\stop();
});
$statUpdate = function () use($stats) {
$runningTime = time() - $stats->startTime();
$this->logger->info("Stats: {$stats->statusUpdates()} statuses. Running for {$runningTime} seconds.");
};
$statUpdate = $statUpdate->bindTo($this, $this);
repeat($statUpdate, 15000);
}
public function testIsValidJson()
{
$chunks = $this->chunks();
$chunkCombiner = new JsonChunkCombiner();
$chunkCombiner->push($chunks[0]);
$this->assertFalse($chunkCombiner->isValidJson(), 'Should not be valid JSON after 1 chunk');
$chunkCombiner->push($chunks[1]);
$this->assertFalse($chunkCombiner->isValidJson(), 'Should not be valid JSON after 2 chunks');
$chunkCombiner->push($chunks[2]);
$this->assertTrue($chunkCombiner->isValidJson(), 'Should be valid JSON after 3 chunks');
}
