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<?php |
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namespace DataValues\Geo\Values; |
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use DataValues\DataValueObject; |
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use InvalidArgumentException; |
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/** |
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* Object representing a geographic point. |
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* |
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* Latitude is specified in degrees within the range [-360, 360]. |
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* Longitude is specified in degrees within the range [-360, 360]. |
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* |
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* @since 0.1 |
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* |
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* @license GPL-2.0-or-later |
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* @author Jeroen De Dauw < [email protected] > |
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*/ |
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class LatLongValue extends DataValueObject { |
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private $latitude; |
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private $longitude; |
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/** |
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* @param float|int $latitude Latitude in degrees within the range [-360, 360] |
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* @param float|int $longitude Longitude in degrees within the range [-360, 360] |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function __construct( float $latitude, float $longitude ) { |
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$this->assertIsLatitude( $latitude ); |
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$this->assertIsLongitude( $longitude ); |
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$this->latitude = $latitude; |
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$this->longitude = $longitude; |
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} |
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private function assertIsLatitude( float $latitude ) { |
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if ( $latitude < -360 || $latitude > 360 ) { |
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throw new InvalidArgumentException( 'Latitude needs to be between -360 and 360' ); |
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} |
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} |
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private function assertIsLongitude( float $longitude ) { |
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if ( $longitude < -360 || $longitude > 360 ) { |
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throw new InvalidArgumentException( 'Longitude needs to be between -360 and 360' ); |
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} |
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} |
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/** |
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* @see Serializable::serialize |
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* |
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* @return string |
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*/ |
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public function serialize(): string { |
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$data = [ |
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$this->latitude, |
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$this->longitude |
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]; |
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return implode( '|', $data ); |
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} |
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/** |
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* @see Serializable::unserialize |
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* |
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* @param string $value |
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* |
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* @throws InvalidArgumentException |
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*/ |
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public function unserialize( $value ) { |
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$data = explode( '|', $value, 2 ); |
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if ( count( $data ) < 2 ) { |
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throw new InvalidArgumentException( 'Invalid serialization provided in ' . __METHOD__ ); |
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} |
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$this->__construct( (float)$data[0], (float)$data[1] ); |
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} |
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/** |
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* @see DataValue::getType |
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* |
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* @return string |
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*/ |
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public static function getType(): string { |
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// TODO: This really should be 'latlong' but serializations may explode if we rename it. |
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return 'geocoordinate'; |
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} |
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/** |
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* @see DataValue::getSortKey |
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* |
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* @return float |
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*/ |
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public function getSortKey(): float { |
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return $this->latitude; |
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} |
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/** |
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* @see DataValue::getValue |
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* |
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* @return self |
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*/ |
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public function getValue(): self { |
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return $this; |
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} |
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public function getLatitude(): float { |
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return $this->latitude; |
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} |
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public function getLongitude(): float { |
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return $this->longitude; |
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} |
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/** |
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* @see DataValue::getArrayValue |
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* |
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* @return float[] |
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*/ |
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public function getArrayValue(): array { |
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return [ |
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'latitude' => $this->latitude, |
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'longitude' => $this->longitude |
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]; |
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} |
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/** |
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* Constructs a new instance from the provided data. Required for @see DataValueDeserializer. |
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* This is expected to round-trip with @see getArrayValue. |
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* |
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* @deprecated since 2.0.1. Static DataValue::newFromArray constructors like this are |
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* underspecified (not in the DataValue interface), and misleadingly named (should be named |
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* newFromArrayValue). Instead, use DataValue builder callbacks in @see DataValueDeserializer. |
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* |
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* @param mixed $data Warning! Even if this is expected to be a value as returned by |
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* @see getArrayValue, callers of this specific newFromArray implementation can not guarantee |
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* this. This is not even guaranteed to be an array! |
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* |
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* @throws InvalidArgumentException if $data is not in the expected format. Subclasses of |
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* InvalidArgumentException are expected and properly handled by @see DataValueDeserializer. |
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* @return self |
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*/ |
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public static function newFromArray( $data ): self { |
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self::requireArrayFields( $data, [ 'latitude', 'longitude' ] ); |
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return new static( $data['latitude'], $data['longitude'] ); |
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} |
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} |
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DataValues /
Geo
