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<?php |
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namespace PPP\Wikidata\ValueFormatters\JsonLd; |
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use DataValues\Geo\Formatters\GlobeCoordinateFormatter; |
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use DataValues\Geo\Values\GlobeCoordinateValue; |
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use InvalidArgumentException; |
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use stdClass; |
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use ValueFormatters\FormatterOptions; |
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use ValueFormatters\ValueFormatterBase; |
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/** |
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* @licence GPLv2+ |
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* @author Thomas Pellissier Tanon |
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* @todo support globes |
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*/ |
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class JsonLdGlobeCoordinateFormatter extends ValueFormatterBase implements JsonLdDataValueFormatter { |
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/** |
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* @var GlobeCoordinateFormatter |
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*/ |
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private $globeCoordinateFormatter; |
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/** |
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* @param GlobeCoordinateFormatter $globeCoordinateFormatter |
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* @param FormatterOptions|null $options |
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*/ |
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public function __construct(GlobeCoordinateFormatter $globeCoordinateFormatter, FormatterOptions $options = null) { |
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$this->globeCoordinateFormatter = $globeCoordinateFormatter; |
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parent::__construct($options); |
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} |
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/** |
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* @see ValueFormatter::format |
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*/ |
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public function format($value) { |
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if(!($value instanceof GlobeCoordinateValue)) { |
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throw new InvalidArgumentException('$value is not a GlobeCoordinateValue.'); |
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} |
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return $this->toJsonLd($value); |
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} |
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private function toJsonLd(GlobeCoordinateValue $value) { |
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$resource = new stdClass(); |
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$resource->{'@type'} = 'GeoCoordinates'; |
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$resource->name = $this->globeCoordinateFormatter->format($value); |
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$resource->latitude = $this->roundDegrees($value->getLatitude(), $value->getPrecision()); |
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$resource->longitude = $this->roundDegrees($value->getLongitude(), $value->getPrecision()); |
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return $resource; |
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} |
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/** |
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* copy of GeoCoordinateFormatter::roundDegrees |
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*/ |
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private function roundDegrees($degrees, $precision) { |
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if($precision <= 0) { |
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$precision = 1 / 3600; |
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} |
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$sign = $degrees > 0 ? 1 : -1; |
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$reduced = round(abs($degrees) / $precision); |
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$expanded = $reduced * $precision; |
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return $sign * $expanded; |
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} |
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} |
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ProjetPP /
PPP-Wikidata
