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<?php |
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declare(strict_types=1); |
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namespace Level23\Druid\Metadata; |
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use Closure; |
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use DateTime; |
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use Exception; |
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use DateTimeInterface; |
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use InvalidArgumentException; |
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use Level23\Druid\DruidClient; |
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use Level23\Druid\Types\TimeBound; |
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use Level23\Druid\Filters\FilterBuilder; |
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use Level23\Druid\Context\ContextInterface; |
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use Level23\Druid\DataSources\DataSourceInterface; |
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use Level23\Druid\Exceptions\QueryResponseException; |
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class MetadataBuilder |
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{ |
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protected DruidClient $client; |
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public function __construct(DruidClient $client) |
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{ |
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$this->client = $client; |
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} |
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/** |
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* Return all intervals for the given dataSource. |
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* Return an array containing the interval. |
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* |
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* We will store the result in static cache to prevent multiple requests. |
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* |
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* Example response: |
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* [ |
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* "2019-08-19T14:00:00.000Z/2019-08-19T15:00:00.000Z" => [ "size" => 75208, "count" => 4 ], |
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* "2019-08-19T13:00:00.000Z/2019-08-19T14:00:00.000Z" => [ "size" => 161870, "count" => 8 ], |
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* ] |
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* |
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* @param string $dataSource |
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* |
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* @return array<string,array<string,string|int>> |
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* |
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* @throws \Level23\Druid\Exceptions\QueryResponseException |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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*/ |
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public function intervals(string $dataSource): array |
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{ |
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static $intervals = []; |
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if (!array_key_exists($dataSource, $intervals)) { |
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$url = $this->client->config('coordinator_url') . '/druid/coordinator/v1/datasources/' . urlencode($dataSource) . '/intervals'; |
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$intervals[$dataSource] = $this->client->executeRawRequest('get', $url, ['simple' => '']); |
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} |
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return $intervals[$dataSource]; |
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} |
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/** |
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* Return the time boundary for the given dataSource. |
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* This finds the first and/or last occurrence of a record in the given dataSource. |
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* Optionally, you can also apply a filter. For example, to only see when the first and/or last occurrence |
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* was for a record where a specific condition was met. |
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* |
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* The return type varies per given $bound. If TimeBound::BOTH was given (or null, which is the same), |
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* we will return an array with the minTime and maxTime: |
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* ``` |
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* array( |
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* 'minTime' => \DateTime object, |
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* 'maxTime' => \DateTime object |
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* ) |
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* ``` |
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* |
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* If only one time was requested with either TimeBound::MIN_TIME or TimeBound::MAX_TIME, we will return |
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* a DateTime object. |
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* |
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* @param string|\Level23\Druid\DataSources\DataSourceInterface $dataSource |
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* @param string|\Level23\Druid\Types\TimeBound|null $bound |
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* @param \Closure|null $filterBuilder |
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* @param \Level23\Druid\Context\ContextInterface|null $context |
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* |
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* @return ( $bound is null ? array<\DateTime> : ( $bound is "both" ? array<DateTime> : \DateTime)) |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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* @throws \Level23\Druid\Exceptions\QueryResponseException |
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* @throws \Exception |
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*/ |
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public function timeBoundary( |
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string|DataSourceInterface $dataSource, |
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null|string|TimeBound $bound = TimeBound::BOTH, |
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?Closure $filterBuilder = null, |
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?ContextInterface $context = null |
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): DateTime|array { |
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$query = [ |
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'queryType' => 'timeBoundary', |
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'dataSource' => is_string($dataSource) ? $dataSource : $dataSource->toArray(), |
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]; |
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if (is_string($bound)) { |
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$bound = TimeBound::from($bound); |
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} |
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if (!empty($bound) && $bound != TimeBound::BOTH) { |
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$query['bound'] = $bound->value; |
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} |
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if ($filterBuilder) { |
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$builder = new FilterBuilder(); |
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call_user_func($filterBuilder, $builder); |
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$filter = $builder->getFilter(); |
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if ($filter) { |
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$query['filter'] = $filter->toArray(); |
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} |
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} |
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if ($context) { |
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$query['context'] = $context->toArray(); |
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} |
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$url = $this->client->config('broker_url') . '/druid/v2'; |
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/** @var array<int,null|array<string,string[]|string>> $response */ |
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$response = $this->client->executeRawRequest('post', $url, $query); |
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if (!empty($response[0]) |
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&& !empty($response[0]['result']) |
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&& is_array($response[0]['result']) |
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) { |
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if (sizeof($response[0]['result']) == 1) { |
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$dateString = reset($response[0]['result']); |
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$date = DateTime::createFromFormat('Y-m-d\TH:i:s.000\Z', $dateString); |
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if (!$date) { |
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throw new Exception('Failed to parse time: ' . $dateString); |
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} |
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return $date; |
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} else { |
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$result = []; |
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foreach ($response[0]['result'] as $key => $dateString) { |
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/** @var string $key */ |
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$date = DateTime::createFromFormat('Y-m-d\TH:i:s.000\Z', $dateString); |
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if (!$date) { |
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throw new Exception('Failed to parse time: ' . $dateString); |
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} |
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$result[$key] = $date; |
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} |
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return $result; |
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} |
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} |
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throw new Exception('Received incorrect response: ' . var_export($response, true)); |
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} |
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/** |
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* Returns a map of segment intervals contained within the specified interval to a map of segment metadata to a set |
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* of server names that contain the segment for an interval. |
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* The latest intervals will come as first, the oldest as last. |
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* |
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* Example response: |
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* |
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* Array |
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* ( |
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* [2017-01-01T00:00:00.000Z/2017-01-02T00:00:00.000Z] => Array |
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* ( |
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* [traffic-conversions_2017-01-01T00:00:00.000Z_2017-01-02T00:00:00.000Z_2019-05-15T11:29:56.874Z] => |
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* Array |
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* ( |
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* [metadata] => Array |
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* ( |
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* [dataSource] => traffic-conversions |
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* [interval] => 2017-01-01T00:00:00.000Z/2017-01-02T00:00:00.000Z |
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* [version] => 2019-05-15T11:29:56.874Z |
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* [loadSpec] => Array |
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* ( |
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* [type] => s3_zip |
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* [bucket] => level23-druid-data |
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* [key] => |
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* druid/segments/traffic-conversions/2017-01-01T00:00:00.000Z_2017-01-02T00:00:00.000Z/2019-05-15T11:29:56.874Z/0/index.zip |
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* [S3Schema] => s3n |
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* ) |
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* |
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* [dimensions] => |
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* country_iso,flags,mccmnc,offer_id,product_type_id,promo_id,test_data_id,test_data_reason,third_party_id |
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* [metrics] => conversion_time,conversions,revenue_external,revenue_internal |
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* [shardSpec] => Array |
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* ( |
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* [type] => numbered |
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* [partitionNum] => 0 |
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* [partitions] => 0 |
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* ) |
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* |
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* [binaryVersion] => 9 |
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* [size] => 272709 |
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* [identifier] => |
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* traffic-conversions_2017-01-01T00:00:00.000Z_2017-01-02T00:00:00.000Z_2019-05-15T11:29:56.874Z |
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* ) |
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* |
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* [servers] => Array |
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* ( |
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* [0] => 172.31.23.160:8083 |
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* [1] => 172.31.3.204:8083 |
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* ) |
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* |
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* ) |
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* |
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* ) |
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* |
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* ) |
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* |
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* @param string $dataSource |
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* @param string $interval |
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* |
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* @return array<string,array<mixed>|string|int> |
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* @throws \Level23\Druid\Exceptions\QueryResponseException |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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*/ |
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public function interval(string $dataSource, string $interval): array |
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{ |
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$url = $this->client->config('coordinator_url') . |
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'/druid/coordinator/v1/datasources/' . urlencode($dataSource) . |
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'/intervals/' . urlencode($interval); |
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return $this->client->executeRawRequest('get', $url, ['full' => '']); |
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} |
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/** |
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* Get the columns for the given interval. This will return something like this: |
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* |
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* Array |
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* ( |
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* 0 => Array |
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* ( |
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* [field] => __time |
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* [type] => LONG |
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* [hasMultipleValues] => |
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* [size] => 0 |
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* [cardinality] => |
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* [minValue] => |
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* [maxValue] => |
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* [errorMessage] => |
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* ) |
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* 1 => Array |
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* ( |
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* [field] => delta |
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* [type] => LONG |
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* [hasMultipleValues] => |
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* [size] => 0 |
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* [cardinality] => |
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* [minValue] => |
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* [maxValue] => |
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* [errorMessage] => |
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* ) |
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* 2 => Array |
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* ( |
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* [field] => cityName |
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* [type] => STRING |
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* [hasMultipleValues] => |
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* [size] => 0 |
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* [cardinality] => 59 |
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* [minValue] => af |
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* [maxValue] => zm |
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* [errorMessage] => |
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* ) |
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* 3 => Array |
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* ( |
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* [field] => comment |
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* [type] => STRING |
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* [hasMultipleValues] => |
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* [size] => 0 |
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* [cardinality] => 84 |
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* [minValue] => |
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* [maxValue] => 74807 |
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* [errorMessage] => |
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* ) |
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* 4 => Array |
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* ( |
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* [field] => added |
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* [type] => LONG |
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* [hasMultipleValues] => |
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* [size] => 0 |
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* [cardinality] => |
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* [minValue] => |
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* [maxValue] => |
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* [errorMessage] => |
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* ) |
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* ) |
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* |
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* @param string $dataSource |
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* @param \DateTimeInterface|int|string $start |
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* @param \DateTimeInterface|int|string|null $stop |
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* |
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297
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* @return array<int,array<string,string>> |
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* @throws \GuzzleHttp\Exception\GuzzleException |
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* @throws \Level23\Druid\Exceptions\QueryResponseException |
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300
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* @throws \Exception |
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301
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*/ |
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302
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1 |
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protected function getColumnsForInterval( |
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303
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string $dataSource, |
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304
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DateTimeInterface|int|string $start, |
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305
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DateTimeInterface|int|string|null $stop = null |
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306
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): array { |
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307
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1 |
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$response = $this->client->query($dataSource) |
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308
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1 |
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->interval($start, $stop) |
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309
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1 |
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->segmentMetadata(); |
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310
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311
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1 |
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$columns = []; |
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312
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313
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1 |
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$rows = $response->data(); |
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314
|
|
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|
|
315
|
1 |
|
if (isset($rows[0])) { |
|
316
|
|
|
|
|
317
|
|
|
/** @var array<string,array<string,array<string,string>>> $row */ |
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318
|
1 |
|
$row = $rows[0]; |
|
319
|
|
|
|
|
320
|
1 |
|
if (isset($row['columns'])) { |
|
321
|
1 |
|
array_walk($row['columns'], function ($value, $key) use (&$columns) { |
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322
|
1 |
|
$columns[] = array_merge($value, ['field' => $key]); |
|
323
|
1 |
|
}); |
|
324
|
|
|
} |
|
325
|
|
|
} |
|
326
|
|
|
|
|
327
|
1 |
|
return $columns; |
|
328
|
|
|
} |
|
329
|
|
|
|
|
330
|
|
|
/** |
|
331
|
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|
* Return the total number of rows for the given interval |
|
332
|
|
|
* |
|
333
|
|
|
* @param string $dataSource The name of the dataSource where you want to count the |
|
334
|
|
|
* rows for |
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335
|
|
|
* @param \DateTimeInterface|int|string $start The start of the interval. |
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336
|
|
|
* @param \DateTimeInterface|int|string|null $stop The end of the interval, or null when it was given as a |
|
337
|
|
|
* "date/date" interval in the $start parameter. |
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338
|
|
|
* |
|
339
|
|
|
* @return int |
|
340
|
|
|
* @throws \GuzzleHttp\Exception\GuzzleException |
|
341
|
|
|
* @throws \Level23\Druid\Exceptions\QueryResponseException |
|
342
|
|
|
* @throws \Exception |
|
343
|
|
|
*/ |
|
344
|
1 |
|
public function rowCount( |
|
345
|
|
|
string $dataSource, |
|
346
|
|
|
DateTimeInterface|int|string $start, |
|
347
|
|
|
DateTimeInterface|int|string|null $stop = null |
|
348
|
|
|
): int { |
|
349
|
1 |
|
$response = $this->client->query($dataSource) |
|
350
|
1 |
|
->interval($start, $stop) |
|
351
|
1 |
|
->segmentMetadata(); |
|
352
|
|
|
|
|
353
|
1 |
|
$totalRows = 0; |
|
354
|
1 |
|
foreach ($response->data() as $row) { |
|
355
|
1 |
|
if (isset($row['numRows'])) { |
|
356
|
1 |
|
$totalRows += intval($row['numRows']); |
|
357
|
|
|
} |
|
358
|
|
|
} |
|
359
|
|
|
|
|
360
|
1 |
|
return $totalRows; |
|
361
|
|
|
} |
|
362
|
|
|
|
|
363
|
|
|
/** |
|
364
|
|
|
* Return the druid interval by the shorthand "first" or "last". |
|
365
|
|
|
* |
|
366
|
|
|
* We will return something like "2017-01-01T00:00:00.000Z/2017-01-02T00:00:00.000Z" |
|
367
|
|
|
* |
|
368
|
|
|
* We will return an empty array when no interval data is found. |
|
369
|
|
|
* |
|
370
|
|
|
* @param string $dataSource |
|
371
|
|
|
* @param string $shortHand |
|
372
|
|
|
* |
|
373
|
|
|
* @return string |
|
374
|
|
|
* @throws \Level23\Druid\Exceptions\QueryResponseException |
|
375
|
|
|
* @throws \GuzzleHttp\Exception\GuzzleException |
|
376
|
|
|
*/ |
|
377
|
5 |
|
protected function getIntervalByShorthand(string $dataSource, string $shortHand): string |
|
378
|
|
|
{ |
|
379
|
|
|
// Get the interval which we will use to do a "structure" scan. |
|
380
|
5 |
|
$shortHand = strtolower($shortHand); |
|
381
|
5 |
|
if ($shortHand != 'last' && $shortHand != 'first') { |
|
382
|
1 |
|
throw new InvalidArgumentException('Only shorthand "first" and "last" are supported!'); |
|
383
|
|
|
} |
|
384
|
|
|
|
|
385
|
4 |
|
$rawIntervals = $this->intervals($dataSource); |
|
386
|
|
|
|
|
387
|
4 |
|
$intervals = array_keys($rawIntervals); |
|
388
|
|
|
|
|
389
|
4 |
|
$result = ($shortHand == 'last') ? ($intervals[0] ?? '') : ($intervals[count($intervals) - 1] ?? ''); |
|
390
|
|
|
|
|
391
|
4 |
|
if (empty($result)) { |
|
392
|
2 |
|
$this->client->getLogger()?->warning( |
|
393
|
2 |
|
'Failed to get ' . $shortHand . ' interval! ' . |
|
394
|
2 |
|
'We got ' . count($rawIntervals) . ' intervals: ' . var_export($intervals, true) |
|
395
|
2 |
|
); |
|
396
|
|
|
} |
|
397
|
|
|
|
|
398
|
4 |
|
return $result; |
|
399
|
|
|
} |
|
400
|
|
|
|
|
401
|
|
|
/** |
|
402
|
|
|
* Generate a structure class for the given dataSource. |
|
403
|
|
|
* |
|
404
|
|
|
* @param string $dataSource |
|
405
|
|
|
* @param string $interval "last", "first" or a raw interval string as returned by druid. |
|
406
|
|
|
* |
|
407
|
|
|
* @return \Level23\Druid\Metadata\Structure |
|
408
|
|
|
* @throws \GuzzleHttp\Exception\GuzzleException |
|
409
|
|
|
* @throws \Level23\Druid\Exceptions\QueryResponseException |
|
410
|
|
|
*/ |
|
411
|
6 |
|
public function structure(string $dataSource, string $interval = 'last'): Structure |
|
412
|
|
|
{ |
|
413
|
|
|
// shorthand given? Then retrieve the real interval for them. |
|
414
|
6 |
|
if (in_array(strtolower($interval), ['first', 'last'])) { |
|
415
|
2 |
|
$interval = $this->getIntervalByShorthand($dataSource, $interval); |
|
416
|
|
|
} |
|
417
|
|
|
|
|
418
|
6 |
|
if (empty($interval)) { |
|
419
|
1 |
|
throw new InvalidArgumentException( |
|
420
|
1 |
|
'Error, interval "' . $interval . '" is invalid. Maybe there are no intervals for this dataSource?' |
|
421
|
1 |
|
); |
|
422
|
|
|
} |
|
423
|
|
|
|
|
424
|
5 |
|
$rawStructure = $this->interval($dataSource, $interval); |
|
425
|
|
|
|
|
426
|
5 |
|
$structureData = reset($rawStructure); |
|
427
|
5 |
|
if (!$structureData || !is_array($structureData)) { |
|
428
|
2 |
|
throw new QueryResponseException([], |
|
429
|
2 |
|
'We failed to retrieve a correct structure for dataSource: ' . $dataSource . '.' . PHP_EOL . |
|
430
|
2 |
|
'Failed to parse raw interval structure data: ' . var_export($rawStructure, true) |
|
431
|
|
|
|
|
432
|
2 |
|
); |
|
433
|
|
|
} |
|
434
|
|
|
|
|
435
|
|
|
/** @var array<string|string[]> $data */ |
|
436
|
3 |
|
$data = reset($structureData); |
|
437
|
|
|
|
|
438
|
3 |
|
$dimensionFields = explode(',', $data['metadata']['dimensions'] ?? ''); |
|
439
|
3 |
|
$metricFields = explode(',', $data['metadata']['metrics'] ?? ''); |
|
440
|
|
|
|
|
441
|
3 |
|
$dimensions = []; |
|
442
|
3 |
|
$metrics = []; |
|
443
|
|
|
|
|
444
|
3 |
|
$columns = $this->getColumnsForInterval($dataSource, $interval); |
|
445
|
|
|
|
|
446
|
3 |
|
foreach ($columns as $info) { |
|
447
|
3 |
|
$column = $info['field']; |
|
448
|
|
|
|
|
449
|
3 |
|
if (in_array($column, $dimensionFields)) { |
|
450
|
3 |
|
$dimensions[$column] = $info['type']; |
|
451
|
|
|
} |
|
452
|
3 |
|
if (in_array($column, $metricFields)) { |
|
453
|
3 |
|
$metrics[$column] = $info['type']; |
|
454
|
|
|
} |
|
455
|
|
|
} |
|
456
|
|
|
|
|
457
|
3 |
|
return new Structure($dataSource, $dimensions, $metrics); |
|
458
|
|
|
} |
|
459
|
|
|
|
|
460
|
|
|
/** |
|
461
|
|
|
* Return a list of all known dataSources |
|
462
|
|
|
* |
|
463
|
|
|
* @return array<string> |
|
464
|
|
|
* @throws \GuzzleHttp\Exception\GuzzleException |
|
465
|
|
|
* @throws \Level23\Druid\Exceptions\QueryResponseException |
|
466
|
|
|
*/ |
|
467
|
1 |
|
public function dataSources(): array |
|
468
|
|
|
{ |
|
469
|
1 |
|
$url = $this->client->config('coordinator_url') . '/druid/coordinator/v1/datasources'; |
|
470
|
|
|
|
|
471
|
|
|
/** @var array<int,string> $dataSources */ |
|
472
|
1 |
|
$dataSources = $this->client->executeRawRequest('get', $url); |
|
473
|
|
|
|
|
474
|
1 |
|
return $dataSources; |
|
475
|
|
|
} |
|
476
|
|
|
} |
level23 /
druid-client
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