/**
* @param $logGroupName
* @param string $logStreamNameFilter
* @return \AwsInspector\Model\Collection
*/
public function findLogStreams($logGroupName, $logStreamNameFilter = null)
{
if (empty($logGroupName)) {
throw new \InvalidArgumentException('LogGroupName cannot be empty');
}
$result = $this->cloudWatchLogsClient->describeLogStreams(['logGroupName' => $logGroupName, 'orderBy' => 'LastEventTime', 'descending' => true]);
$rows = $result->search('logStreams[]');
$collection = new \AwsInspector\Model\Collection();
foreach ($rows as $row) {
if (!$logStreamNameFilter || Finder::matchWildcard($logStreamNameFilter, $row['logStreamName'])) {
$collection->attach(new LogStream($row));
}
}
return $collection;
}
private function initialize()
{
// fetch existing groups
$existingGroups = $this->client->describeLogGroups(['logGroupNamePrefix' => $this->logGroupName])->get('logGroups');
// extract existing groups names
$existingGroupsNames = array_map(function ($group) {
return $group['logGroupName'];
}, $existingGroups);
// create group and set retention policy if not created yet
if (!in_array($this->logGroupName, $existingGroupsNames, true)) {
$this->client->createLogGroup(['logGroupName' => $this->logGroupName]);
$this->client->putRetentionPolicy(['logGroupName' => $this->logGroupName, 'retentionInDays' => $this->retentionDays]);
}
// fetch existing streams
$existingStreams = $this->client->describeLogStreams(['logGroupName' => $this->logGroupName, 'logStreamNamePrefix' => $this->logStreamName])->get('logStreams');
// extract existing streams names
$existingStreamsNames = array_map(function ($stream) {
// set sequence token
if ($stream['logStreamName'] === $this->logStreamName && isset($stream['uploadSequenceToken'])) {
$this->uploadSequenceToken = $stream['uploadSequenceToken'];
}
return $stream['logStreamName'];
}, $existingStreams);
// create stream if not created
if (!in_array($this->logStreamName, $existingStreamsNames, true)) {
$this->client->createLogStream(['logGroupName' => $this->logGroupName, 'logStreamName' => $this->logStreamName]);
}
$this->initialized = true;
}
