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<?php
namespace SMW\MediaWiki\Api\Browse;
use SMW\ApplicationFactory;
use SMW\DIWikiPage;
use SMW\MediaWiki\Specials\Browse\HtmlBuilder;
use SMW\Store;
use SMW\Exception\RedirectTargetUnresolvableException;
use SMW\Exception\ParameterNotFoundException;
/**
* @license GNU GPL v2+
* @since 3.0
*
* @author mwjames
*/
class SubjectLookup extends Lookup {
/**
* @var Store
*/
private $store;
/**
* @since 3.0
*
* @param Store $store
*/
public function __construct( Store $store ) {
$this->store = $store;
}
/**
* @since 3.0
*
* @return string|integer
*/
public function getVersion() {
return 'SubjectLookup:' . self::VERSION;
}
/**
* @since 3.0
*
* @param array $parameters
*
* @return array
*/
public function lookup( array $parameters ) {
if ( !isset( $parameters['subject'] ) ) {
throw new ParameterNotFoundException( 'subject' );
}
if ( !isset( $parameters['ns'] ) ) {
throw new ParameterNotFoundException( 'ns' );
}
if ( !isset( $parameters['iw'] ) ) {
$parameters['iw'] = '';
}
if ( !isset( $parameters['subobject'] ) ) {
$parameters['subobject'] = '';
}
if ( isset( $parameters['type'] ) && $parameters['type'] === 'html' ) {
$data = $this->buildHTML( $parameters );
} else {
$data = $this->doSerialize( $parameters );
}
// Changing this output format requires to set a new version
$res = [
'query' => $data,
'meta' => [
'type' => 'subject'
]
];
return $res;
}
private function buildHTML( $params ) {
if ( !isset( $params['options'] ) ) {
throw new ParameterNotFoundException( 'options' );
}
$subject = new DIWikiPage(
$params['subject'],
$params['ns'],
$params['iw'],
$params['subobject']
);
$htmlBuilder = new HtmlBuilder(
$this->store,
$subject
);
$htmlBuilder->setOptions(
$params['options']
);
return $htmlBuilder->buildHTML();
}
private function doSerialize( $params ) {
$applicationFactory = ApplicationFactory::getInstance();
$subobject = isset( $params['subobject'] ) ? $params['subobject'] : '';
$title = $applicationFactory->newTitleFactory()->newFromText(
$params['subject'],
$params['ns']
);
$deepRedirectTargetResolver = $applicationFactory->newMwCollaboratorFactory()->newDeepRedirectTargetResolver();
try {
$title = $deepRedirectTargetResolver->findRedirectTargetFor( $title );
} catch ( \Exception $e ) {
throw new RedirectTargetUnresolvableException( $e->getMessage() );
}
$dataItem = new DIWikiPage(
$title->getDBkey(),
$title->getNamespace(),
$title->getInterwiki(),
$subobject
);
$semanticData = $applicationFactory->getStore()->getSemanticData(
$dataItem
);
$semanticDataSerializer = $applicationFactory->newSerializerFactory()->newSemanticDataSerializer();
return $semanticDataSerializer->serialize( $semanticData );
}
}
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