Wikibase\DataModel\Services\EntityId\EntityIdLabelFormatter

Complexity

Total Complexity

5

Size/Duplication

Total Lines	42
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Test Coverage

Coverage

100%

Importance

Changes

0

3 Methods

Rating	Name	Duplication	Size	Complexity
A	__construct()	0	3	1
A	formatEntityId()	0	9	2
A	lookupEntityLabel()	0	7	2

<?php

namespace Wikibase\DataModel\Services\EntityId;

use Wikibase\DataModel\Entity\EntityId;
use Wikibase\DataModel\Services\Lookup\LabelDescriptionLookupException;
use Wikibase\DataModel\Services\Lookup\LabelLookup;
use Wikibase\DataModel\Term\Term;

/**
 * @since 1.1
 *
 * @license GPL-2.0-or-later
 * @author Jeroen De Dauw < jeroendedauw@gmail.com >
 * @author Katie Filbert < aude.wiki@gmail.com >
 * @author Daniel Kinzler
 */
class EntityIdLabelFormatter implements EntityIdFormatter {

	/**
	 * @var LabelLookup
	 */
	private $labelLookup;

	public function __construct( LabelLookup $labelLookup ) {
		$this->labelLookup = $labelLookup;
	}

	/**
	 * @see EntityIdFormatter::formatEntityId
	 *
	 * @param EntityId $entityId
	 *
	 * @return string Plain text
	 */
	public function formatEntityId( EntityId $entityId ) {
		$term = $this->lookupEntityLabel( $entityId );
		if ( $term !== null ) {
			return $term->getText();
		}

		// @fixme check if the entity is deleted and format differently?
		return $entityId->getSerialization();
	}

	/**
	 * @param EntityId $entityId
	 *
	 * @return Term|null Null if no label was found or the entity does not exist
	 */
	protected function lookupEntityLabel( EntityId $entityId ) {
		try {
			return $this->labelLookup->getLabel( $entityId );
		} catch ( LabelDescriptionLookupException $e ) {
			return null;
		}
	}

}