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<?php |
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/* |
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* This file is part of the ONGR package. |
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* |
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* (c) NFQ Technologies UAB <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace ONGR\ElasticsearchBundle\Result\Aggregation; |
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/** |
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* This class represent`s aggregation buckets in the objective way. |
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*/ |
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class AggregationValue implements \ArrayAccess, \IteratorAggregate |
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{ |
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const BUCKETS_KEY = 'buckets'; |
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const DOC_COUNT_KEY = 'doc_count'; |
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/** |
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* @var array |
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*/ |
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private $rawData; |
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public function __construct(array $rawData) |
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{ |
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$this->rawData = $rawData; |
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} |
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/** |
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* Returns aggregation value by the aggregation name. |
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*/ |
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public function getValue(string $name) |
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{ |
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if (!isset($this->rawData[$name])) { |
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return null; |
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} |
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return $this->rawData[$name]; |
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} |
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public function getCount(): int |
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{ |
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return (int) $this->getValue(self::DOC_COUNT_KEY); |
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} |
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/** |
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* Returns array of bucket values. |
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* |
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* @return AggregationValue[] |
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*/ |
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public function getBuckets(): array |
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{ |
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if (!isset($this->rawData[self::BUCKETS_KEY])) { |
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return []; |
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} |
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$buckets = []; |
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foreach ($this->rawData[self::BUCKETS_KEY] as $bucket) { |
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$buckets[] = new self($bucket); |
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} |
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return $buckets; |
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} |
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/** |
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* Returns sub-aggregation. |
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*/ |
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public function getAggregation(string $name): ?self |
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{ |
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if (!isset($this->rawData[$name])) { |
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return null; |
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} |
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return new self($this->rawData[$name]); |
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} |
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/** |
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* Search'es the aggregation by defined path. |
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*/ |
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public function find(string $path): ?self |
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{ |
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$name = explode('.', $path, 2); |
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$aggregation = $this->getAggregation($name[0]); |
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if ($aggregation === null || !isset($name[1])) { |
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return $aggregation; |
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} |
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return $aggregation->find($name[1]); |
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} |
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public function offsetExists($offset) |
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{ |
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return array_key_exists($offset, $this->rawData); |
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} |
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public function offsetGet($offset) |
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{ |
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if (!isset($this->rawData[$offset])) { |
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return null; |
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} |
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return $this->rawData[$offset]; |
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} |
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public function offsetSet($offset, $value) |
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{ |
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throw new \LogicException('Aggregation result can not be changed on runtime.'); |
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} |
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public function offsetUnset($offset) |
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{ |
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throw new \LogicException('Aggregation result can not be changed on runtime.'); |
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} |
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public function getIterator(): \ArrayIterator |
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{ |
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$buckets = $this->getBuckets(); |
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if ($buckets === null) { |
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throw new \LogicException('Can not iterate over aggregation without buckets!'); |
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} |
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return new \ArrayIterator($this->getBuckets()); |
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} |
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} |
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ongr-io /
ElasticsearchBundle
