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<?php |
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declare(strict_types=1); |
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namespace Level23\Druid\Aggregations; |
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use InvalidArgumentException; |
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use Level23\Druid\Types\DataType; |
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class AnyAggregator extends MethodAggregator |
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{ |
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/** |
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* @var int|null |
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*/ |
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protected $maxStringBytes; |
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/** |
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* constructor. |
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* |
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* @param string $metricName |
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* @param string $outputName When not given, we will use the same name as the metric. |
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* @param string $type The type of field. This can either be "long", "float" or |
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* "double" |
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* @param int|null $maxStringBytes optional, defaults to 1024 |
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*/ |
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public function __construct( |
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string $metricName, |
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string $outputName = '', |
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string $type = 'long', |
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int $maxStringBytes = null |
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) { |
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$type = strtolower($type); |
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if (!in_array($type, ['long', 'float', 'double'])) { |
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throw new InvalidArgumentException( |
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'Incorrect type given: ' . $type . '. This can either be "long", "float" or "double"' |
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); |
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} |
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$this->type = $type; |
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$this->metricName = $metricName; |
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$this->outputName = $outputName ?: $metricName; |
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$this->maxStringBytes = $maxStringBytes; |
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} |
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/** |
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* Return the aggregator as it can be used in a druid query. |
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* |
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* @return array |
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*/ |
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public function toArray(): array |
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{ |
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$response = [ |
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'type' => $this->type . ucfirst($this->getMethod()), |
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'name' => $this->outputName, |
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'fieldName' => $this->metricName, |
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]; |
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if ($this->type == DataType::STRING && $this->maxStringBytes !== null) { |
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$response['maxStringBytes'] = $this->maxStringBytes; |
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} |
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return $response; |
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} |
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/** |
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* Returns the method for the type aggregation |
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* |
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* @return string |
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*/ |
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protected function getMethod(): string |
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{ |
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return 'any'; |
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} |
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} |
level23 /
druid-client
