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<?php |
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/** |
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* Dataobject for a single concept. |
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*/ |
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class Concept extends VocabularyDataObject implements Modifiable |
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{ |
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/** |
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* Stores a label string if the concept has been found through |
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* a altLabel/label in a another language than the ui. |
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*/ |
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private $foundby; |
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/** Type of foundby match: 'alt', 'hidden' or 'lang' */ |
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private $foundbytype; |
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/** the EasyRdf\Graph object of the concept */ |
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private $graph; |
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private $clang; |
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private $deleted; |
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/** concept properties that should not be shown to users */ |
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private $DELETED_PROPERTIES = array( |
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'skosext:broaderGeneric', # these are remnants of bad modeling |
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'skosext:broaderPartitive', # |
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'skos:hiddenLabel', # because it's supposed to be hidden |
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'skos:prefLabel', # handled separately by getLabel |
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'rdfs:label', # handled separately by getLabel |
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'skos:topConceptOf', # because it's too technical, not relevant for users |
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'skos:inScheme', # should be evident in any case |
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'skos:member', # this shouldn't be shown on the group page |
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'dc:created', # handled separately |
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'dc:modified', # handled separately |
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'owl:deprecated', # indicated visually |
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); |
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/** related concepts that should be shown to users in the appendix */ |
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private $MAPPING_PROPERTIES = array( |
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'skos:exactMatch', |
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'skos:narrowMatch', |
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'skos:broadMatch', |
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'skos:closeMatch', |
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'skos:relatedMatch', |
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'rdfs:seeAlso', |
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'owl:sameAs', |
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); |
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/** default external properties we are interested in saving/displaying from mapped external objects */ |
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private $DEFAULT_EXT_PROPERTIES = array( |
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"dc11:title", |
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"dcterms:title", |
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"skos:prefLabel", |
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"skos:exactMatch", |
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"skos:closeMatch", |
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"skos:inScheme", |
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"rdfs:label", |
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"rdfs:isDefinedBy", |
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"owl:sameAs", |
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"rdf:type", |
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"void:inDataset", |
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"void:sparqlEndpoint", |
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"void:uriLookupEndpoint", |
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"schema:about", |
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"schema:description", |
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"schema:inLanguage", |
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"schema:name", |
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"schema:isPartOf", |
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"wdt:P31", |
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"wdt:P625" |
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); |
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/** |
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* Initializing the concept object requires the following parameters. |
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* @param Model $model |
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* @param Vocabulary $vocab |
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* @param EasyRdf\Resource $resource |
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* @param EasyRdf\Graph $graph |
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*/ |
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public function __construct($model, $vocab, $resource, $graph, $clang) |
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{ |
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parent::__construct($model, $vocab, $resource); |
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$this->deleted = $this->DELETED_PROPERTIES; |
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if ($vocab !== null) { |
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$this->order = $vocab->getConfig()->getPropertyOrder(); |
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// delete notations unless configured to show them |
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if (!$vocab->getConfig()->getShowNotationAsProperty()) { |
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$this->deleted[] = 'skos:notation'; |
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} |
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} else { |
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$this->order = VocabularyConfig::DEFAULT_PROPERTY_ORDER; |
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} |
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$this->graph = $graph; |
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$this->clang = $clang; |
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} |
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/** |
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* Returns the concept uri. |
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* @return string |
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*/ |
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public function getUri() |
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{ |
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return $this->resource->getUri(); |
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} |
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public function getType() |
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{ |
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return $this->resource->types(); |
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} |
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/** |
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* Returns a boolean value indicating whether the resource is a group defined in the vocab config as skosmos:groupClass. |
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* @return boolean |
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*/ |
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public function isGroup() |
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{ |
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$groupClass = $this->getVocab()->getConfig()->getGroupClassURI(); |
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if ($groupClass) { |
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$groupClass = $this->shortenOrKeep($groupClass); |
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return in_array($groupClass, $this->getType()); |
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} |
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return false; |
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} |
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/** |
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* Returns a boolean value indicating if the concept has been deprecated. |
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* @return boolean |
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*/ |
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public function getDeprecated() |
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{ |
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$deprecatedValue = $this->resource->getLiteral('owl:deprecated'); |
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return ($deprecatedValue !== null && filter_var($deprecatedValue->getValue(), FILTER_VALIDATE_BOOLEAN)); |
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} |
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/** |
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* Returns a label for the concept in the content language or if not possible in any language. |
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* @return string |
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*/ |
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public function getLabel() |
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{ |
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foreach ($this->vocab->getConfig()->getLanguageOrder($this->clang) as $fallback) { |
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if ($this->resource->label($fallback) !== null) { |
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return $this->resource->label($fallback); |
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} |
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// We need to check all the labels in case one of them matches a subtag of the current language |
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foreach ($this->resource->allLiterals('skos:prefLabel') as $label) { |
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// the label lang code is a subtag of the UI lang eg. en-GB - create a new literal with the main language |
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if ($label !== null && strpos($label->getLang(), $fallback . '-') === 0) { |
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return EasyRdf\Literal::create($label, $fallback); |
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} |
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} |
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} |
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// Last resort: label in any language, including literal with empty language tag |
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$label = $this->resource->label(); |
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if ($label !== null) { |
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if (!$label->getLang()) { |
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return $label->getValue(); |
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} |
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return EasyRdf\Literal::create($label->getValue(), $label->getLang()); |
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} |
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// empty |
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return ""; |
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} |
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public function hasXlLabel() |
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{ |
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$xlLabel = $this->getXlLabel(); |
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return ($xlLabel !== null && !empty($xlLabel->getProperties())); |
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} |
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public function getXlLabel() |
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{ |
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$labels = $this->resource->allResources('skosxl:prefLabel'); |
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foreach ($labels as $labres) { |
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$label = $labres->getLiteral('skosxl:literalForm'); |
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if ($label !== null && $label->getLang() == $this->clang) { |
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return new LabelSkosXL($this->model, $labres); |
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} |
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} |
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return null; |
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} |
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/** |
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* Returns a notation for the concept or null if it has not been defined. |
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* @return string eg. '999' |
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*/ |
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public function getNotation() |
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{ |
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$notation = $this->resource->get('skos:notation'); |
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if ($this->vocab->getConfig()->showNotation() && $notation !== null) { |
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return $notation->getValue(); |
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} |
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return null; |
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} |
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/** |
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* Returns the Vocabulary object or undefined if that is not available. |
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* @return Vocabulary |
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*/ |
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public function getVocab() |
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{ |
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return $this->vocab; |
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} |
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/** |
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* Returns the vocabulary shortname string or id if that is not available. |
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* @return string |
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*/ |
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public function getShortName() |
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{ |
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return $this->vocab ? $this->vocab->getShortName() : null; |
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} |
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/** |
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* Returns the vocabulary shortname string or id if that is not available. |
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* @return string |
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*/ |
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public function getVocabTitle() |
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{ |
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return $this->vocab ? $this->vocab->getTitle() : null; |
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} |
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/** |
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* Setter for the $clang property. |
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* @param string $clang language code eg. 'en' |
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*/ |
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public function setContentLang($clang) |
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{ |
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$this->clang = $clang; |
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} |
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public function getContentLang() |
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{ |
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return $this->clang; |
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} |
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/** |
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* Setter for the $foundby property. |
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* @param string $label label that was matched |
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* @param string $type type of match: 'alt', 'hidden', or 'lang' |
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*/ |
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public function setFoundBy($label, $type) |
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{ |
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$this->foundby = $label; |
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$this->foundbytype = $type; |
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} |
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/** |
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* Getter for the $foundby property. |
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* @return string |
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*/ |
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public function getFoundBy() |
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{ |
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return $this->foundby; |
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} |
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/** |
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* Getter for the $foundbytype property. |
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* @return string |
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*/ |
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public function getFoundByType() |
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{ |
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return $this->foundbytype; |
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} |
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/** |
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* Processes a single external resource i.e., adds the properties from |
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* 1) $this->$DEFAULT_EXT_PROPERTIES |
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* 2) VocabConfig external properties |
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* 3) Possible plugin defined external properties |
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* to $this->graph |
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* @param EasyRdf\Resource $res |
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*/ |
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public function processExternalResource($res) |
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{ |
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$exGraph = $res->getGraph(); |
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// catch external subjects that have $res as object |
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$extSubjects = $exGraph->resourcesMatching("schema:about", $res); |
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$propList = array_unique(array_merge( |
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$this->DEFAULT_EXT_PROPERTIES, |
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$this->getVocab()->getConfig()->getExtProperties(), |
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$this->getVocab()->getConfig()->getPluginRegister()->getExtProperties() |
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)); |
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$seen = array(); |
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$this->addExternalTriplesToGraph($res, $seen, $propList); |
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foreach ($extSubjects as $extSubject) { |
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if ($extSubject->isBNode() && array_key_exists($extSubject->getUri(), $seen)) { |
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// already processed, skip |
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continue; |
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} |
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$seen[$extSubject->getUri()] = 1; |
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$this->addExternalTriplesToGraph($extSubject, $seen, $propList); |
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} |
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} |
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/** |
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* Adds resource properties to $this->graph |
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* @param EasyRdf\Resource $res |
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* @param string[] $seen Processed resources so far |
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* @param string[] $props (optional) limit to these property URIs |
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*/ |
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private function addExternalTriplesToGraph($res, &$seen, $props = null) |
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{ |
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if (array_key_exists($res->getUri(), $seen) && $seen[$res->getUri()] === 0) { |
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return; |
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} |
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$seen[$res->getUri()] = 0; |
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if ($res->isBNode() || is_null($props)) { |
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foreach ($res->propertyUris() as $prop) { |
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$this->addPropertyValues($res, $prop, $seen); |
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} |
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} else { |
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foreach ($props as $prop) { |
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if ($res->hasProperty($prop)) { |
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$this->addPropertyValues($res, $prop, $seen); |
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} |
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} |
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} |
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} |
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/** |
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* Adds values of a single single property of a resource to $this->graph |
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* implements Concise Bounded Description definition |
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* @param EasyRdf\Resource $res |
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* @param string $prop |
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* @param string[] $seen Processed resources so far |
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*/ |
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private function addPropertyValues($res, $prop, &$seen) |
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{ |
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$resList = $res->allResources('<' . $prop . '>'); |
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foreach ($resList as $res2) { |
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if ($res2->isBNode()) { |
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$this->addExternalTriplesToGraph($res2, $seen); |
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} |
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$this->graph->addResource($res, $prop, $res2); |
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$this->addResourceReifications($res, $prop, $res2, $seen); |
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} |
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$litList = $res->allLiterals('<' . $prop . '>'); |
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foreach ($litList as $lit) { |
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$this->graph->addLiteral($res, $prop, $lit); |
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$this->addLiteralReifications($res, $prop, $lit, $seen); |
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} |
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} |
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/** |
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* Adds reifications of a triple having a literal object to $this->graph |
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* @param EasyRdf\Resource $sub |
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* @param string $pred |
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* @param EasyRdf\Literal $obj |
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* @param string[] $seen Processed resources so far |
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*/ |
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private function addLiteralReifications($sub, $pred, $obj, &$seen) |
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{ |
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$pos_reifs = $sub->getGraph()->resourcesMatching("rdf:subject", $sub); |
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foreach ($pos_reifs as $pos_reif) { |
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$lit = $pos_reif->getLiteral("rdf:object", $obj->getLang()); |
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if (!is_null($lit) && $lit->getValue() === $obj->getValue() && |
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|
|
|
$pos_reif->isA("rdf:Statement") && |
371
|
|
|
$pos_reif->hasProperty("rdf:predicate", new EasyRdf\Resource($pred, $sub->getGraph()))) { |
372
|
|
|
$this->addExternalTriplesToGraph($pos_reif, $seen); |
373
|
|
|
} |
374
|
|
|
} |
375
|
|
|
} |
376
|
|
|
|
377
|
|
|
/** |
378
|
|
|
* Adds reifications of a triple having a resource object to $this->graph |
379
|
|
|
* @param EasyRdf\Resource $sub |
380
|
|
|
* @param string $pred |
381
|
|
|
* @param EasyRdf\Resource $obj |
382
|
|
|
* @param string[] $seen Processed resources so far |
383
|
|
|
*/ |
384
|
|
|
private function addResourceReifications($sub, $pred, $obj, &$seen) |
385
|
|
|
{ |
386
|
|
|
$pos_reifs = $sub->getGraph()->resourcesMatching("rdf:subject", $sub); |
387
|
|
|
foreach ($pos_reifs as $pos_reif) { |
388
|
|
|
if ($pos_reif->isA("rdf:Statement") && |
389
|
|
|
$pos_reif->hasProperty("rdf:object", $obj) && |
390
|
|
|
$pos_reif->hasProperty("rdf:predicate", new EasyRdf\Resource($pred, $sub->getGraph()))) { |
391
|
|
|
$this->addExternalTriplesToGraph($pos_reif, $seen); |
392
|
|
|
} |
393
|
|
|
} |
394
|
|
|
} |
395
|
|
|
|
396
|
|
|
/** |
397
|
|
|
* @param string[]|null $allowedProperties List of properties to include, or null to include all. |
398
|
|
|
* @return ConceptProperty[] |
399
|
|
|
*/ |
400
|
|
|
public function getMappingProperties(array $allowedProperties = null) |
401
|
|
|
{ |
402
|
|
|
$ret = array(); |
403
|
|
|
|
404
|
|
|
foreach ($this->resource->propertyUris() as &$longUri) { |
|
|
|
|
405
|
|
|
$prop = $this->shortenOrKeep($longUri); |
406
|
|
|
// EasyRdf requires full URIs to be in angle brackets |
407
|
|
|
$sprop = ($prop == $longUri) ? "<$longUri>" : $prop; |
408
|
|
|
if ($allowedProperties && !in_array($prop, $allowedProperties)) { |
409
|
|
|
// allowedProperties in use and this is not an allowed property, skipping |
410
|
|
|
continue; |
411
|
|
|
} |
412
|
|
|
|
413
|
|
|
if (in_array($prop, $this->MAPPING_PROPERTIES) && !in_array($prop, $this->DELETED_PROPERTIES)) { |
414
|
|
|
$propres = new EasyRdf\Resource($prop, $this->graph); |
415
|
|
|
$proplabel = $propres->label($this->getLang()) ? $propres->label($this->getLang()) : $propres->label(); // current language |
416
|
|
|
$propobj = new ConceptProperty($this->model, $prop, $proplabel); |
|
|
|
|
417
|
|
|
if ($propobj->getLabel() !== null) { |
418
|
|
|
// only display properties for which we have a label |
419
|
|
|
$ret[$prop] = $propobj; |
420
|
|
|
} |
421
|
|
|
|
422
|
|
|
// Iterating through every resource and adding these to the data object. |
423
|
|
|
foreach ($this->resource->allResources($sprop) as $resourceValue) { |
424
|
|
|
if (isset($ret[$prop])) { |
425
|
|
|
// checking if the target vocabulary can be found at the skosmos endpoint |
426
|
|
|
$exuri = $resourceValue->getUri(); |
427
|
|
|
// if multiple vocabularies are found, the following method will return in priority the current vocabulary of the concept |
428
|
|
|
$exvoc = $this->model->guessVocabularyFromURI($exuri, $this->vocab->getId()); |
429
|
|
|
// if not querying the uri itself |
430
|
|
|
if (!$exvoc) { |
431
|
|
|
$response = null; |
432
|
|
|
// if told to do so in the vocabulary configuration |
433
|
|
|
if ($this->vocab->getConfig()->getExternalResourcesLoading()) { |
434
|
|
|
$response = $this->model->getResourceFromUri($exuri); |
435
|
|
|
} |
436
|
|
|
|
437
|
|
|
if ($response) { |
438
|
|
|
$ret[$prop]->addValue(new ConceptMappingPropertyValue($this->model, $this->vocab, $response, $this->resource, $prop)); |
439
|
|
|
|
440
|
|
|
$this->processExternalResource($response); |
441
|
|
|
|
442
|
|
|
continue; |
443
|
|
|
} |
444
|
|
|
} |
445
|
|
|
$ret[$prop]->addValue(new ConceptMappingPropertyValue($this->model, $this->vocab, $resourceValue, $this->resource, $prop, $this->clang)); |
446
|
|
|
} |
447
|
|
|
} |
448
|
|
|
} |
449
|
|
|
} |
450
|
|
|
|
451
|
|
|
// sorting the properties to a order preferred in the Skosmos concept page. |
452
|
|
|
return $this->arbitrarySort($ret); |
453
|
|
|
} |
454
|
|
|
|
455
|
|
|
private function shortenOrKeep($uri) |
456
|
|
|
{ |
457
|
|
|
return EasyRdf\RdfNamespace::shorten($uri) ?? $uri; |
458
|
|
|
} |
459
|
|
|
|
460
|
|
|
private function getCollectionMembersInUse(): array |
461
|
|
|
{ |
462
|
|
|
$inCollection = []; |
463
|
|
|
$membersArray = []; |
464
|
|
|
|
465
|
|
|
$arrayClassUri = $this->vocab->getConfig()->getArrayClassURI(); |
466
|
|
|
if ($arrayClassUri === null) { |
|
|
|
|
467
|
|
|
return ['inCollection' => $inCollection, 'membersArray' => $membersArray]; |
468
|
|
|
} |
469
|
|
|
|
470
|
|
|
$collections = $this->graph->allOfType($arrayClassUri); |
471
|
|
|
if (count($collections) === 0) { |
472
|
|
|
return ['inCollection' => $inCollection, 'membersArray' => $membersArray]; |
473
|
|
|
} |
474
|
|
|
|
475
|
|
|
// Index narrowers by URI |
476
|
|
|
$narrowersByUri = []; |
477
|
|
|
foreach ($this->resource->allResources('skos:narrower') as $narrower) { |
478
|
|
|
$narrowersByUri[$narrower->getUri()] = $narrower; |
479
|
|
|
} |
480
|
|
|
|
481
|
|
|
foreach ($collections as $coll) { |
482
|
|
|
$currCollMembers = $this->getCollectionMembers($coll, $narrowersByUri); |
483
|
|
|
|
484
|
|
|
foreach ($currCollMembers as $collection) { |
485
|
|
|
if ($collection->getSubMembers()) { |
486
|
|
|
foreach ($collection->getSubMembers() as $member) { |
487
|
|
|
$inCollection[$member->getUri()] = true; |
488
|
|
|
} |
489
|
|
|
} |
490
|
|
|
} |
491
|
|
|
|
492
|
|
|
if (isset($collection) && $collection->getSubMembers()) { |
493
|
|
|
$membersArray = array_merge($membersArray, $currCollMembers); |
494
|
|
|
} |
495
|
|
|
} |
496
|
|
|
|
497
|
|
|
return ['inCollection' => $inCollection, 'membersArray' => $membersArray]; |
498
|
|
|
} |
499
|
|
|
|
500
|
|
|
|
501
|
|
|
/** |
502
|
|
|
* Iterates over all the properties of the concept and returns those in an array. |
503
|
|
|
* @param string[]|null $allowedProperties List of properties to include, or null to include all. |
504
|
|
|
* @return array |
505
|
|
|
*/ |
506
|
|
|
public function getProperties($allowedProperties = null) |
507
|
|
|
{ |
508
|
|
|
$properties = array(); |
509
|
|
|
$duplicates = array(); |
510
|
|
|
$propertiesWithValues = array(); |
511
|
|
|
|
512
|
|
|
$collectionData = $this->getCollectionMembersInUse(); |
513
|
|
|
$inCollection = $collectionData['inCollection']; |
514
|
|
|
$membersArray = $collectionData['membersArray']; |
515
|
|
|
|
516
|
|
|
if (!empty($membersArray)) { |
517
|
|
|
$properties['skos:narrower'] = $membersArray; |
518
|
|
|
} |
519
|
|
|
|
520
|
|
|
foreach ($this->resource->propertyUris() as &$longUri) { |
|
|
|
|
521
|
|
|
// storing full URI without brackets in a separate variable |
522
|
|
|
$prop = $this->shortenOrKeep($longUri); |
523
|
|
|
// EasyRdf requires full URIs to be in angle brackets |
524
|
|
|
$sprop = ($prop == $longUri) ? "<$longUri>" : $prop; |
525
|
|
|
|
526
|
|
|
if ($allowedProperties !== null && !in_array($prop, $allowedProperties)) { |
527
|
|
|
continue; |
528
|
|
|
} |
529
|
|
|
|
530
|
|
|
if (!in_array($prop, $this->deleted) || ($this->isGroup() === false && $prop === 'skos:member')) { |
|
|
|
|
531
|
|
|
// retrieve property label and super properties from the current vocabulary first |
532
|
|
|
$propertyResource = new EasyRdf\Resource($prop, $this->graph); |
533
|
|
|
$proplabel = $propertyResource->label($this->getLang()) ? $propertyResource->label($this->getLang()) : $propertyResource->label(); |
534
|
|
|
|
535
|
|
|
$prophelp = $propertyResource->getLiteral('rdfs:comment|skos:definition', $this->getLang()); |
536
|
|
|
if ($prophelp === null) { |
537
|
|
|
// try again without language restriction |
538
|
|
|
$prophelp = $propertyResource->getLiteral('rdfs:comment|skos:definition'); |
539
|
|
|
} |
540
|
|
|
|
541
|
|
|
// check if the property is one of the well-known properties for which we have a translation |
542
|
|
|
// if it is then we can skip the additional lookups in the default graph |
543
|
|
|
$propkey = (substr($prop, 0, 5) == 'dc11:') ? |
544
|
|
|
str_replace('dc11:', 'dc:', $prop) : $prop; |
545
|
|
|
$is_well_known = ($this->model->getText($propkey) != $propkey); |
546
|
|
|
|
547
|
|
|
// if not found in current vocabulary, look up in the default graph to be able |
548
|
|
|
// to read an ontology loaded in a separate graph |
549
|
|
|
// note that this imply that the property has an rdf:type declared for the query to work |
550
|
|
|
if (!$is_well_known && !$proplabel) { |
551
|
|
|
$envLangLabels = $this->model->getDefaultSparql()->queryLabel($longUri, $this->getLang()); |
552
|
|
|
|
553
|
|
|
$defaultPropLabel = $this->model->getDefaultSparql()->queryLabel($longUri, ''); |
554
|
|
|
|
555
|
|
|
if ($envLangLabels) { |
556
|
|
|
$proplabel = $envLangLabels[$this->getLang()]; |
557
|
|
|
} else { |
558
|
|
|
if ($defaultPropLabel) { |
559
|
|
|
$proplabel = $defaultPropLabel['']; |
560
|
|
|
} |
561
|
|
|
} |
562
|
|
|
} |
563
|
|
|
|
564
|
|
|
// look for superproperties in the current graph |
565
|
|
|
$superprops = array(); |
566
|
|
|
foreach ($this->graph->allResources($prop, 'rdfs:subPropertyOf') as $superProperty) { |
567
|
|
|
$superprops[] = $superProperty->getUri(); |
568
|
|
|
} |
569
|
|
|
|
570
|
|
|
// also look up superprops in the default graph if not found in current vocabulary |
571
|
|
|
if (!$is_well_known && (!$superprops || empty($superprops))) { |
572
|
|
|
$superprops = $this->model->getDefaultSparql()->querySuperProperties($longUri); |
573
|
|
|
} |
574
|
|
|
|
575
|
|
|
// we're reading only one super property, even if there are multiple ones |
576
|
|
|
$superprop = ($superprops) ? $this->shortenOrKeep($superprops[0]) : null; |
577
|
|
|
$sort_by_notation = $this->vocab->getConfig()->getSortByNotation(); |
578
|
|
|
$propobj = new ConceptProperty($this->model, $prop, $proplabel, $prophelp, $superprop, $sort_by_notation); |
|
|
|
|
579
|
|
|
|
580
|
|
|
if ($propobj->getLabel() !== null) { |
581
|
|
|
// only display properties for which we have a label |
582
|
|
|
$propertiesWithValues[$prop] = $propobj; |
583
|
|
|
} |
584
|
|
|
|
585
|
|
|
// searching for subproperties of literals too |
586
|
|
|
if ($superprops) { |
587
|
|
|
foreach ($superprops as $superProperty) { |
588
|
|
|
$duplicates[$this->shortenOrKeep($superProperty)] = $prop; |
589
|
|
|
} |
590
|
|
|
} |
591
|
|
|
|
592
|
|
|
// Iterating through every literal and adding these to the data object. |
593
|
|
|
foreach ($this->resource->allLiterals($sprop) as $literalValue) { |
594
|
|
|
$literal = new ConceptPropertyValueLiteral($this->model, $this->vocab, $this->resource, $literalValue, $prop); |
595
|
|
|
// only add literals when they match the content/hit language or have no language defined OR when they are literals of a multilingual property |
596
|
|
|
if (isset($propertiesWithValues[$prop]) && ($literal->getLang() === $this->clang || $literal->getLang() === null) || $this->vocab->getConfig()->hasMultiLingualProperty($prop)) { |
|
|
|
|
597
|
|
|
$propertiesWithValues[$prop]->addValue($literal); |
598
|
|
|
} |
599
|
|
|
} |
600
|
|
|
|
601
|
|
|
// Iterating through every resource and adding these to the data object. |
602
|
|
|
foreach ($this->resource->allResources($sprop) as $resourceValue) { |
603
|
|
|
// skipping narrower concepts which are already shown in a collection |
604
|
|
|
if ($sprop === 'skos:narrower' && array_key_exists($resourceValue->getUri(), $inCollection)) { |
605
|
|
|
continue; |
606
|
|
|
} |
607
|
|
|
|
608
|
|
|
// hiding rdf:type property if it's just skos:Concept |
609
|
|
|
if ($sprop === 'rdf:type' && $resourceValue->shorten() === 'skos:Concept') { |
610
|
|
|
continue; |
611
|
|
|
} |
612
|
|
|
|
613
|
|
|
// handled by getMappingProperties() |
614
|
|
|
if (in_array($sprop, $this->MAPPING_PROPERTIES)) { |
615
|
|
|
continue; |
616
|
|
|
} |
617
|
|
|
|
618
|
|
|
if (isset($propertiesWithValues[$prop])) { |
619
|
|
|
// create a ConceptPropertyValue first, assuming the resource exists in current vocabulary |
620
|
|
|
$value = new ConceptPropertyValue($this->model, $this->vocab, $resourceValue, $prop, $this->clang); |
621
|
|
|
$propertiesWithValues[$prop]->addValue($value); |
622
|
|
|
} |
623
|
|
|
|
624
|
|
|
} |
625
|
|
|
} |
626
|
|
|
} |
627
|
|
|
// adding narrowers part of a collection |
628
|
|
|
foreach ($properties as $prop => $values) { |
629
|
|
|
foreach ($values as $value) { |
630
|
|
|
$propertiesWithValues[$prop]->addValue($value); |
631
|
|
|
} |
632
|
|
|
} |
633
|
|
|
|
634
|
|
|
$groupPropObj = new ConceptProperty($this->model, 'skosmos:memberOf', null); |
635
|
|
|
foreach ($this->getGroupProperties() as $propVals) { |
636
|
|
|
foreach ($propVals as $propVal) { |
637
|
|
|
$groupPropObj->addValue($propVal); |
638
|
|
|
} |
639
|
|
|
} |
640
|
|
|
$propertiesWithValues['skosmos:memberOf'] = $groupPropObj; |
641
|
|
|
|
642
|
|
|
$arrayPropObj = new ConceptProperty($this->model, 'skosmos:memberOfArray', null); |
643
|
|
|
foreach ($this->getArrayProperties() as $propVals) { |
644
|
|
|
foreach ($propVals as $propVal) { |
645
|
|
|
$arrayPropObj->addValue($propVal); |
646
|
|
|
} |
647
|
|
|
} |
648
|
|
|
$propertiesWithValues['skosmos:memberOfArray'] = $arrayPropObj; |
649
|
|
|
|
650
|
|
|
foreach ($propertiesWithValues as $key => $prop) { |
651
|
|
|
if (sizeof($prop->getValues()) === 0) { |
652
|
|
|
unset($propertiesWithValues[$key]); |
653
|
|
|
} |
654
|
|
|
} |
655
|
|
|
|
656
|
|
|
$propertiesWithValues = $this->removeDuplicatePropertyValues($propertiesWithValues, $duplicates); |
657
|
|
|
// sorting the properties to the order preferred in the Skosmos concept page. |
658
|
|
|
return $this->arbitrarySort($propertiesWithValues); |
659
|
|
|
} |
660
|
|
|
|
661
|
|
|
/** |
662
|
|
|
* Removes properties that have duplicate values. |
663
|
|
|
* @param array $propertiesWithValues the array of properties generated by getProperties |
664
|
|
|
* @param array $duplicates array of properties found are a subProperty of a another property |
665
|
|
|
* @return array of ConceptProperties |
666
|
|
|
*/ |
667
|
|
|
public function removeDuplicatePropertyValues($propertiesWithValues, $duplicates) |
668
|
|
|
{ |
669
|
|
|
$propertyValues = array(); |
670
|
|
|
|
671
|
|
|
foreach ($propertiesWithValues as $prop) { |
672
|
|
|
foreach ($prop->getValues() as $value) { |
673
|
|
|
$label = $value->getLabel(allowExternal: false); |
674
|
|
|
$propertyValues[(is_object($label) && method_exists($label, 'getValue')) ? $label->getValue() : $label][] = $value->getType(); |
675
|
|
|
} |
676
|
|
|
} |
677
|
|
|
|
678
|
|
|
foreach ($propertyValues as $value => $propnames) { |
679
|
|
|
// if there are multiple properties with the same string value. |
680
|
|
|
if (count($propnames) > 1) { |
681
|
|
|
foreach ($propnames as $property) { |
682
|
|
|
// if there is a more accurate property delete the more generic one. |
683
|
|
|
if (isset($duplicates[$property])) { |
684
|
|
|
unset($propertiesWithValues[$property]); |
685
|
|
|
} |
686
|
|
|
} |
687
|
|
|
|
688
|
|
|
} |
689
|
|
|
} |
690
|
|
|
// handled separately: remove duplicate skos:prefLabel value (#854) |
691
|
|
|
if (isset($duplicates["skos:prefLabel"])) { |
692
|
|
|
unset($propertiesWithValues[$duplicates["skos:prefLabel"]]); |
693
|
|
|
} |
694
|
|
|
return $propertiesWithValues; |
695
|
|
|
} |
696
|
|
|
|
697
|
|
|
/** |
698
|
|
|
* @param $lang UI language |
|
|
|
|
699
|
|
|
* @return String|null the translated label of skos:prefLabel subproperty, or null if not available |
700
|
|
|
*/ |
701
|
|
|
public function getPreferredSubpropertyLabelTranslation($lang) |
702
|
|
|
{ |
703
|
|
|
$prefLabelProp = $this->graph->resource("skos:prefLabel"); |
704
|
|
|
$subPrefLabelProps = $this->graph->resourcesMatching('rdfs:subPropertyOf', $prefLabelProp); |
705
|
|
|
foreach ($subPrefLabelProps as $subPrefLabelProp) { |
706
|
|
|
// return the first available translation |
707
|
|
|
if ($subPrefLabelProp->label($lang)) { |
708
|
|
|
return $subPrefLabelProp->label($lang); |
709
|
|
|
} |
710
|
|
|
} |
711
|
|
|
return null; |
712
|
|
|
} |
713
|
|
|
|
714
|
|
|
/** |
715
|
|
|
* @return DateTime|null the modified date, or null if not available |
716
|
|
|
*/ |
717
|
|
|
public function getModifiedDate() |
718
|
|
|
{ |
719
|
|
|
// finding the modified properties |
720
|
|
|
/** @var \EasyRdf\Resource|\EasyRdf\Literal|null $modifiedResource */ |
721
|
|
|
$modifiedResource = $this->resource->get('dc:modified'); |
722
|
|
|
if ($modifiedResource && $modifiedResource instanceof \EasyRdf\Literal\Date) { |
723
|
|
|
return $modifiedResource->getValue(); |
724
|
|
|
} |
725
|
|
|
|
726
|
|
|
// if the concept does not have a modified date, we look for it in its |
727
|
|
|
// vocabulary |
728
|
|
|
return $this->getVocab()->getModifiedDate(); |
729
|
|
|
} |
730
|
|
|
|
731
|
|
|
/** |
732
|
|
|
* Gets the creation date and modification date if available. |
733
|
|
|
* @return String containing the date information in a human readable format. |
734
|
|
|
*/ |
735
|
|
|
public function getDate() |
736
|
|
|
{ |
737
|
|
|
$ret = ''; |
738
|
|
|
$created = ''; |
739
|
|
|
try { |
740
|
|
|
// finding the created properties |
741
|
|
|
if ($this->resource->get('dc:created')) { |
742
|
|
|
$created = $this->resource->get('dc:created')->getValue(); |
743
|
|
|
} |
744
|
|
|
|
745
|
|
|
$modified = $this->getModifiedDate(); |
746
|
|
|
|
747
|
|
|
// making a human readable string from the timestamps |
748
|
|
|
if ($created != '') { |
749
|
|
|
$ret = $this->model->getText('skosmos:created') . ' ' . (Punic\Calendar::formatDate($created, 'short', $this->getLang())); |
750
|
|
|
} |
751
|
|
|
|
752
|
|
|
if ($modified != '') { |
753
|
|
|
if ($created != '') { |
754
|
|
|
$ret .= ', ' . $this->model->getText('skosmos:modified') . ' ' . (Punic\Calendar::formatDate($modified, 'short', $this->getLang())); |
755
|
|
|
} else { |
756
|
|
|
$ret .= ' ' . ucfirst($this->model->getText('skosmos:modified')) . ' ' . (Punic\Calendar::formatDate($modified, 'short', $this->getLang())); |
757
|
|
|
} |
758
|
|
|
|
759
|
|
|
} |
760
|
|
|
} catch (Exception $e) { |
761
|
|
|
trigger_error($e->getMessage(), E_USER_WARNING); |
762
|
|
|
$ret = ''; |
763
|
|
|
if ($this->resource->get('dc:modified')) { |
764
|
|
|
$modified = (string) $this->resource->get('dc:modified'); |
765
|
|
|
$ret = $this->model->getText('skosmos:modified') . ' ' . $modified; |
766
|
|
|
} |
767
|
|
|
if ($this->resource->get('dc:created')) { |
768
|
|
|
$created .= (string) $this->resource->get('dc:created'); |
769
|
|
|
$ret .= ' ' . $this->model->getText('skosmos:created') . ' ' . $created; |
770
|
|
|
} |
771
|
|
|
} |
772
|
|
|
return $ret; |
773
|
|
|
} |
774
|
|
|
|
775
|
|
|
/** |
776
|
|
|
* Gets the members of a specific collection. |
777
|
|
|
* @param $coll |
778
|
|
|
* @param array containing all narrowers as EasyRdf\Resource |
|
|
|
|
779
|
|
|
* @return array containing ConceptPropertyValue objects |
780
|
|
|
*/ |
781
|
|
|
private function getCollectionMembers($coll, $narrowers) |
782
|
|
|
{ |
783
|
|
|
$membersArray = array(); |
784
|
|
|
if ($coll->label()) { |
785
|
|
|
$collLabel = $coll->label()->getValue($this->clang) ? $coll->label($this->clang) : $coll->label(); |
786
|
|
|
if ($collLabel) { |
787
|
|
|
$collLabel = $collLabel->getValue(); |
788
|
|
|
} |
789
|
|
|
} else { |
790
|
|
|
$collLabel = $coll->getUri(); |
791
|
|
|
} |
792
|
|
|
$membersArray[$collLabel] = new ConceptPropertyValue($this->model, $this->vocab, $coll, 'skos:narrower', $this->clang); |
793
|
|
|
foreach ($coll->allResources('skos:member') as $member) { |
794
|
|
|
if (array_key_exists($member->getUri(), $narrowers)) { |
795
|
|
|
$narrower = $narrowers[$member->getUri()]; |
796
|
|
|
if (isset($narrower)) { |
797
|
|
|
$membersArray[$collLabel]->addSubMember(new ConceptPropertyValue($this->model, $this->vocab, $narrower, 'skos:member', $this->clang), $this->clang); |
798
|
|
|
} |
799
|
|
|
|
800
|
|
|
} |
801
|
|
|
} |
802
|
|
|
|
803
|
|
|
return $membersArray; |
804
|
|
|
} |
805
|
|
|
|
806
|
|
|
/** |
807
|
|
|
* Gets the groups the concept belongs to. |
808
|
|
|
*/ |
809
|
|
|
public function getGroupProperties() |
810
|
|
|
{ |
811
|
|
|
return $this->getCollections(false); |
812
|
|
|
} |
813
|
|
|
|
814
|
|
|
/** |
815
|
|
|
* Gets the groups/arrays the concept belongs to. |
816
|
|
|
*/ |
817
|
|
|
private function getCollections($includeArrays) |
818
|
|
|
{ |
819
|
|
|
$groups = array(); |
820
|
|
|
$collections = $this->graph->resourcesMatching('skos:member', $this->resource); |
821
|
|
|
if (isset($collections)) { |
822
|
|
|
$arrayClassURI = $this->vocab !== null ? $this->vocab->getConfig()->getArrayClassURI() : null; |
823
|
|
|
$arrayClass = $arrayClassURI !== null ? EasyRdf\RdfNamespace::shorten($arrayClassURI) : null; |
824
|
|
|
$superGroups = $this->resource->all('isothes:superGroup'); |
825
|
|
|
$superGroupUris = array_map(function ($obj) { return $obj->getUri(); }, $superGroups); |
826
|
|
|
foreach ($collections as $collection) { |
827
|
|
|
if (in_array($arrayClass, $collection->types()) === $includeArrays) { |
828
|
|
|
// not adding the memberOf if the reverse resource is already covered by isothes:superGroup see issue #433 |
829
|
|
|
if (in_array($collection->getUri(), $superGroupUris)) { |
830
|
|
|
continue; |
831
|
|
|
} |
832
|
|
|
$property = in_array($arrayClass, $collection->types()) ? "skosmos:memberOfArray" : "skosmos:memberOf"; |
833
|
|
|
$collLabel = $collection->label($this->clang) ? $collection->label($this->clang) : $collection->label(); |
834
|
|
|
if ($collLabel) { |
835
|
|
|
$collLabel = $collLabel->getValue(); |
836
|
|
|
} |
837
|
|
|
|
838
|
|
|
$group = new ConceptPropertyValue($this->model, $this->vocab, $collection, $property, $this->clang); |
839
|
|
|
$groups[$collLabel] = array($group); |
840
|
|
|
|
841
|
|
|
$res = $collection; |
842
|
|
|
while ($super = $this->graph->resourcesMatching('skos:member', $res)) { |
843
|
|
|
foreach ($super as $res) { |
844
|
|
|
$superprop = new ConceptPropertyValue($this->model, $this->vocab, $res, 'skosmos:memberOfSuper', $this->clang); |
845
|
|
|
array_unshift($groups[$collLabel], $superprop); |
846
|
|
|
} |
847
|
|
|
} |
848
|
|
|
} |
849
|
|
|
} |
850
|
|
|
} |
851
|
|
|
uksort($groups, 'strcoll'); |
852
|
|
|
return $groups; |
853
|
|
|
} |
854
|
|
|
|
855
|
|
|
public function getArrayProperties() |
856
|
|
|
{ |
857
|
|
|
return $this->getCollections(true); |
858
|
|
|
} |
859
|
|
|
|
860
|
|
|
/** |
861
|
|
|
* Given a language code, gets its name in UI language via Punic or alternatively |
862
|
|
|
* tries to search for getText translation from Model. |
863
|
|
|
* @param string $langCode |
864
|
|
|
* @return string e.g. 'English' |
865
|
|
|
*/ |
866
|
|
|
private function langToString($langCode) |
867
|
|
|
{ |
868
|
|
|
// using empty string as the language name when there is no langcode set |
869
|
|
|
$langName = ''; |
870
|
|
|
if (!empty($langCode)) { |
871
|
|
|
$langName = Punic\Language::getName($langCode, $this->getLang()) !== $langCode ? Punic\Language::getName($langCode, $this->getLang()) : $this->model->getText($langCode); |
872
|
|
|
} |
873
|
|
|
return $langName; |
874
|
|
|
} |
875
|
|
|
|
876
|
|
|
/** |
877
|
|
|
* Gets the values of a property in all other languages than in the current language |
878
|
|
|
* and places them in a [langCode][userDefinedKey] array. |
879
|
|
|
* @param string $prop The property for which the values are looked upon to |
880
|
|
|
* @param string $key User-defined key for accessing the values |
881
|
|
|
* @return array LangCode-based multidimensional array ([string][string][ConceptPropertyValueLiteral]) or empty array if no values |
882
|
|
|
*/ |
883
|
|
|
private function getForeignLabelList($prop, $key) |
884
|
|
|
{ |
885
|
|
|
$ret = array(); |
886
|
|
|
$labels = $this->resource->allLiterals($prop); |
887
|
|
|
|
888
|
|
|
foreach ($labels as $lit) { |
889
|
|
|
// filtering away subsets of the current language eg. en vs en-GB |
890
|
|
|
$langCode = strval($lit->getLang()); |
891
|
|
|
if ($langCode != $this->clang && strpos($langCode, $this->getLang() . '-') !== 0) { |
892
|
|
|
$ret[$langCode][$key][] = new ConceptPropertyValueLiteral($this->model, $this->vocab, $this->resource, $lit, $prop); |
893
|
|
|
} |
894
|
|
|
} |
895
|
|
|
return $ret; |
896
|
|
|
} |
897
|
|
|
|
898
|
|
|
/** |
899
|
|
|
* Gets the values of skos:prefLabel and skos:altLabel in all other languages than in the current language. |
900
|
|
|
* @return array Language-based multidimensional sorted array ([string][string][ConceptPropertyValueLiteral]) or empty array if no values |
901
|
|
|
*/ |
902
|
|
|
public function getForeignLabels() |
903
|
|
|
{ |
904
|
|
|
$prefLabels = $this->getForeignLabelList('skos:prefLabel', 'prefLabel'); |
905
|
|
|
$altLabels = $this->getForeignLabelList('skos:altLabel', 'altLabel'); |
906
|
|
|
$ret = array_merge_recursive($prefLabels, $altLabels); |
907
|
|
|
|
908
|
|
|
$langArray = array_keys($ret); |
909
|
|
|
foreach ($langArray as $lang) { |
910
|
|
|
$coll = collator_create($lang); |
911
|
|
|
if (isset($ret[$lang]['prefLabel'])) { |
912
|
|
|
$coll->sort($ret[$lang]['prefLabel'], Collator::SORT_STRING); |
913
|
|
|
} |
914
|
|
|
if (isset($ret[$lang]['altLabel'])) { |
915
|
|
|
$coll->sort($ret[$lang]['altLabel'], Collator::SORT_STRING); |
916
|
|
|
} |
917
|
|
|
if ($lang !== '') { |
918
|
|
|
$ret[$this->langToString($lang)] = $ret[$lang]; |
919
|
|
|
unset($ret[$lang]); |
920
|
|
|
} |
921
|
|
|
} |
922
|
|
|
uksort($ret, 'strcoll'); |
923
|
|
|
return $ret; |
924
|
|
|
} |
925
|
|
|
|
926
|
|
|
/** |
927
|
|
|
* Gets the values for the property in question in all other languages than the ui language. |
928
|
|
|
* @param string $property |
929
|
|
|
* @return array array of labels for the values of the given property |
930
|
|
|
*/ |
931
|
|
|
public function getAllLabels($property) |
932
|
|
|
{ |
933
|
|
|
$labels = array(); |
934
|
|
|
// shortening property labels if possible, EasyRdf requires full URIs to be in angle brackets |
935
|
|
|
$property = (EasyRdf\RdfNamespace::shorten($property) !== null) ? EasyRdf\RdfNamespace::shorten($property) : "<$property>"; |
|
|
|
|
936
|
|
|
foreach ($this->resource->allLiterals($property) as $lit) { |
937
|
|
|
$labels[Punic\Language::getName($lit->getLang(), $this->getLang())][] = new ConceptPropertyValueLiteral($this->model, $this->vocab, $this->resource, $lit, $property); |
938
|
|
|
} |
939
|
|
|
ksort($labels); |
940
|
|
|
return $labels; |
941
|
|
|
} |
942
|
|
|
|
943
|
|
|
/** |
944
|
|
|
* Dump concept graph as JSON-LD. |
945
|
|
|
*/ |
946
|
|
|
public function dumpJsonLd() |
947
|
|
|
{ |
948
|
|
|
$context = array( |
949
|
|
|
'skos' => EasyRdf\RdfNamespace::get("skos"), |
950
|
|
|
'isothes' => EasyRdf\RdfNamespace::get("isothes"), |
951
|
|
|
'rdfs' => EasyRdf\RdfNamespace::get("rdfs"), |
952
|
|
|
'owl' => EasyRdf\RdfNamespace::get("owl"), |
953
|
|
|
'dct' => EasyRdf\RdfNamespace::get("dcterms"), |
954
|
|
|
'dc11' => EasyRdf\RdfNamespace::get("dc11"), |
955
|
|
|
'uri' => '@id', |
956
|
|
|
'type' => '@type', |
957
|
|
|
'lang' => '@language', |
958
|
|
|
'value' => '@value', |
959
|
|
|
'graph' => '@graph', |
960
|
|
|
'label' => 'rdfs:label', |
961
|
|
|
'prefLabel' => 'skos:prefLabel', |
962
|
|
|
'altLabel' => 'skos:altLabel', |
963
|
|
|
'hiddenLabel' => 'skos:hiddenLabel', |
964
|
|
|
'broader' => 'skos:broader', |
965
|
|
|
'narrower' => 'skos:narrower', |
966
|
|
|
'related' => 'skos:related', |
967
|
|
|
'inScheme' => 'skos:inScheme', |
968
|
|
|
'schema' => EasyRdf\RdfNamespace::get("schema"), |
969
|
|
|
'wd' => EasyRdf\RdfNamespace::get("wd"), |
970
|
|
|
'wdt' => EasyRdf\RdfNamespace::get("wdt"), |
971
|
|
|
); |
972
|
|
|
$vocabPrefix = preg_replace('/\W+/', '', $this->vocab->getId()); // strip non-word characters |
973
|
|
|
$vocabUriSpace = $this->vocab->getUriSpace(); |
974
|
|
|
|
975
|
|
|
if (!in_array($vocabUriSpace, $context, true)) { |
976
|
|
|
if (!isset($context[$vocabPrefix])) { |
977
|
|
|
$context[$vocabPrefix] = $vocabUriSpace; |
978
|
|
|
} elseif ($context[$vocabPrefix] !== $vocabUriSpace) { |
979
|
|
|
$i = 2; |
980
|
|
|
while (isset($context[$vocabPrefix . $i]) && $context[$vocabPrefix . $i] !== $vocabUriSpace) { |
981
|
|
|
$i += 1; |
982
|
|
|
} |
983
|
|
|
$context[$vocabPrefix . $i] = $vocabUriSpace; |
984
|
|
|
} |
985
|
|
|
} |
986
|
|
|
$compactJsonLD = \ML\JsonLD\JsonLD::compact($this->graph->serialise('jsonld'), json_encode($context)); |
987
|
|
|
return \ML\JsonLD\JsonLD::toString($compactJsonLD); |
988
|
|
|
} |
989
|
|
|
|
990
|
|
|
public function isUseModifiedDate() |
991
|
|
|
{ |
992
|
|
|
return $this->getVocab()->isUseModifiedDate(); |
993
|
|
|
} |
994
|
|
|
} |
995
|
|
|
|