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<?php |
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declare(strict_types=1); |
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namespace Level23\Druid\Filters; |
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use Level23\Druid\Types\DataType; |
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use Level23\Druid\Types\SortingOrder; |
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use Level23\Druid\Types\BoundOperator; |
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/** |
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* Class RangeFilter |
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* |
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* The range filter is a replacement for the bound filter. It compares against any type of column and is designed to |
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* have has more SQL compliant behavior than the bound filter. It won't match null values, even if you |
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* don't specify a lower bound. |
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* |
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* @package Level23\Druid\Filters |
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*/ |
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class RangeFilter implements FilterInterface |
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{ |
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protected string $column; |
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protected BoundOperator $operator; |
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protected string|int|float $value; |
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protected SortingOrder $ordering; |
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protected DataType $valueType; |
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/** |
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* BoundFilter constructor. |
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* |
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* @param string $column Input column or virtual column name to filter. |
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* |
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* @param string|BoundOperator $operator The operator to use. Use ">", ">=", "<", or "<=" Or use the |
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* BoundOperator constants. |
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* @param string|int|float $value The value to compare with. This can either be a numeric or a |
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* string. |
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* @param DataType|null $valueType String specifying the type of bounds to match. The valueType |
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* determines how Druid interprets the matchValue to assist in |
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* converting to the type of the matched column and also defines |
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* the type of comparison used when matching values. |
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*/ |
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public function __construct( |
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string $column, |
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string|BoundOperator $operator, |
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string|int|float $value, |
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DataType $valueType = null |
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) { |
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$this->column = $column; |
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$this->operator = is_string($operator) ? BoundOperator::from($operator) : $operator; |
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$this->value = $value; |
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if (is_null($valueType)) { |
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if (is_int($value)) { |
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$valueType = DataType::LONG; |
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} elseif (is_float($value)) { |
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$valueType = DataType::DOUBLE; |
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} else { |
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$valueType = DataType::STRING; |
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} |
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} |
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$this->valueType = $valueType; |
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} |
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/** |
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* Return the filter as it can be used in the druid query. |
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* |
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* @return array<string,string|int|float|bool|array<string,string|int|bool|array<mixed>>> |
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*/ |
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public function toArray(): array |
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{ |
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$result = [ |
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'type' => 'range', |
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'column' => $this->column, |
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'matchValueType' => $this->valueType->value, |
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]; |
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switch ($this->operator) { |
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case BoundOperator::GE: |
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$result['lower'] = $this->value; |
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$result['lowerOpen'] = false; |
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break; |
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case BoundOperator::GT: |
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$result['lower'] = $this->value; |
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$result['lowerOpen'] = true; |
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break; |
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case BoundOperator::LE: |
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$result['upper'] = $this->value; |
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$result['upperOpen'] = false; |
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break; |
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case BoundOperator::LT: |
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$result['upper'] = $this->value; |
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$result['upperOpen'] = true; |
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break; |
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} |
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return $result; |
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} |
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} |