285 lines
11 KiB
PHP
285 lines
11 KiB
PHP
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<?php
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/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2007-2010 (original work) Public Research Centre Henri Tudor & University of Luxembourg) (under the project TAO-QUAL);
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* 2008-2010 (update and modification) Deutsche Institut für Internationale Pädagogische Forschung (under the project TAO-TRANSFER);
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* 2017 (update and modification) Open Assessment Technologies SA (under the project TAO-PRODUCT);
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*/
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use oat\generis\model\OntologyRdf;
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use oat\generis\model\RulesRdf;
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/**
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* Short description of class core_kernel_rules_Term
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*
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* @access public
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* @author firstname and lastname of author, <author@example.org>
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* @package generis
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*/
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class core_kernel_rules_Term extends core_kernel_classes_Resource
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{
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// --- ASSOCIATIONS ---
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// --- ATTRIBUTES ---
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// --- OPERATIONS ---
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/**
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* Short description of method evaluate
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*
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* @access public
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* @author firstname and lastname of author, <author@example.org>
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* @param array $variable
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* @return mixed
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*/
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public function evaluate($variable = [])
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{
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common_Logger::i('Evaluating Term uri : ' . $this->getUri(), ['Generis Term']);
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common_Logger::i('Evaluating Term name : ' . $this->getLabel(), ['Generis Term']);
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$termType = $this->getUniquePropertyValue(new core_kernel_classes_Property(OntologyRdf::RDF_TYPE));
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common_Logger::d('Term s type : ' . $termType->getUri(), ['Generis Term']);
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switch ($termType->getUri()) {
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case RulesRdf::CLASS_TERM : {
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throw new common_Exception("Forbidden Type of Term");
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break;
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}
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case RulesRdf::CLASS_TERM_SUJET_PREDICATE_X : {
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$returnValue = $this->evaluateSPX($variable);
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break;
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}
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case RulesRdf::CLASS_URI_TERM_X_PREDICATE_OBJECT : {
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$returnValue = $this->evaluateXPO();
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break;
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}
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case RulesRdf::CLASS_URI_CONSTRUCTED_SET : {
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$returnValue = $this->evaluateSet();
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break;
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}
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case RulesRdf::CLASS_TERM_CONST : {
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$returnValue = $this->evaluateConst();
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break;
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}
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case RulesRdf::CLASS_OPERATION : {
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$returnValue = $this->evaluateOperation($variable);
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break;
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}
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default:
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throw new common_Exception('problem evaluating Term');
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}
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return $returnValue;
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}
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/**
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* Short description of method evalutateSetOperation
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*
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* @access public
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* @author firstname and lastname of author, <author@example.org>
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* @param Resource $setOperator
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* @param Collection $actualSet
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* @param ContainerCollection $newSet
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* @return core_kernel_classes_ContainerCollection
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*/
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public function evalutateSetOperation(core_kernel_classes_Resource $setOperator, common_Collection $actualSet, core_kernel_classes_ContainerCollection $newSet)
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{
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$returnValue = null;
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if ($setOperator->getUri() == RulesRdf::INSTANCE_OPERATOR_UNION) {
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$returnValue = $actualSet->union($newSet);
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} elseif ($setOperator->getUri() == RulesRdf::INSTANCE_OPERATOR_INTERSECT) {
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$returnValue = $actualSet->intersect($newSet);
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} else {
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throw new common_Exception('unknow set operator');
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}
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return $returnValue;
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}
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/**
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* Short description of method evaluateSPX
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*
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* @access protected
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* @author firstname and lastname of author, <author@example.org>
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* @param array $variable
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* @return mixed
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*/
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protected function evaluateSPX($variable = [])
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{
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common_Logger::d('SPX TYPE', ['Generis Term evaluateSPX']);
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$resource = $this->getUniquePropertyValue(new core_kernel_classes_Property(RulesRdf::PROPERTY_TERM_SPX_SUBJET));
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if ($resource instanceof core_kernel_classes_Resource) {
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if (array_key_exists($resource->getUri(), $variable)) {
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common_Logger::d('Variable uri : ' . $resource->getUri() . ' found', ['Generis Term evaluateSPX']);
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common_Logger::d('Variable name : ' . $resource->getLabel() . ' found', ['Generis Term evaluateSPX']);
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$resource = new core_kernel_classes_Resource($variable[$resource->getUri()]);
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common_Logger::d('Variable repaced uri : ' . $resource->getUri(), ['Generis Term evaluateSPX']);
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common_Logger::d('Variable repaced name : ' . $resource->getLabel(), ['Generis Term evaluateSPX']);
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}
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try {
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$propertyInstance = $this->getUniquePropertyValue(new core_kernel_classes_Property(RulesRdf::PROPERTY_TERM_SPX_PREDICATE));
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} catch (common_Exception $e) {
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echo $e;
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var_dump($this);
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die('unable to get property value in Term');
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}
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// if(array_key_exists($propertyInstance->getUri(),$variable)) {
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// $logger->debug('Variable uri : ' . $propertyInstance->getUri() . ' found' , __FILE__, __LINE__);
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// $logger->debug('Variable name : ' . $propertyInstance->getLabel() . ' found' , __FILE__, __LINE__);
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// $propertyInstance = new core_kernel_classes_Resource($variable[$resource->getUri()]);
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// $logger->debug('Variable repaced uri : ' . $propertyInstance->getUri() , __FILE__, __LINE__);
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// $logger->debug('Variable repaced name : ' . $propertyInstance->getLabel() , __FILE__, __LINE__);
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// }
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$property = new core_kernel_classes_Property($propertyInstance->getUri());
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common_Logger::d('Property uri ' . $property->getUri(), ['Generis Term evaluateSPX']);
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common_Logger::d('Property name ' . $property->getLabel(), ['Generis Term evaluateSPX']);
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$returnValue = $resource->getPropertyValuesCollection($property);
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common_Logger::d($returnValue->count() . ' values returned ', ['Generis Term evaluateSPX']);
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if ($returnValue->isEmpty()) {
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$newEmptyTerm = new core_kernel_rules_Term(RulesRdf::INSTANCE_TERM_IS_NULL, __METHOD__);
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common_Logger::d('Empty Term Created', ['Generis Term evaluateSPX']);
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$property = new core_kernel_classes_Property(RulesRdf::PROPERTY_TERM_VALUE);
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$returnValue = $newEmptyTerm->getUniquePropertyValue($property);
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} else {
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if ($returnValue->count() == 1) {
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$returnValue = $returnValue->get(0);
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}
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}
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}
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return $returnValue;
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}
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/**
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* Short description of method evaluateXPO
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*
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* @access protected
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* @author firstname and lastname of author, <author@example.org>
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* @return mixed
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*/
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protected function evaluateXPO()
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{
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common_Logger::d('XPO TYPE', ['Generis Term evaluateXPO']);
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$classTerm = new core_kernel_classes_Class(RulesRdf::CLASS_URI_TERM_X_PREDICATE_OBJECT);
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$obj = $this->getUniquePropertyValue(new core_kernel_classes_Property(RulesRdf::PROPERTY_TERM_XPO_OBJECT));
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$pred = $this->getUniquePropertyValue(new core_kernel_classes_Property(RulesRdf::PROPERTY_TERM_XPO_PREDICATE));
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if ($obj instanceof core_kernel_classes_Literal) {
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$objValue = $obj->literal;
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}
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if ($obj instanceof core_kernel_classes_Resource) {
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$objValue = $pred->getUri();
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}
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$returnValue = new core_kernel_classes_ContainerCollection(new common_Object(__METHOD__));
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$terms = $classTerm->searchInstances([$pred->getUri() => $objValue], ['like' => false]);
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foreach ($terms as $term) {
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$returnValue->add($term);
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}
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return $returnValue;
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}
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/**
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* Short description of method evaluateSet
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*
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* @access protected
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* @author firstname and lastname of author, <author@example.org>
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* @return mixed
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*/
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protected function evaluateSet()
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{
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common_Logger::d('Constructed Set TYPE', ['Generis Term evaluateSet']);
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$operator = $this->getUniquePropertyValue(new core_kernel_classes_Property(RulesRdf::PROPERTY_SET_OPERATOR));
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$subSets = $this->getPropertyValuesCollection(new core_kernel_classes_Property(RulesRdf::PROPERTY_SUBSET));
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$returnValue = new core_kernel_classes_ContainerCollection($this);
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foreach ($subSets->getIterator() as $aSet) {
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if ($aSet instanceof core_kernel_classes_Resource) {
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$newSet = new core_kernel_rules_Term($aSet->getUri());
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$resultSet = $newSet->evaluate();
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if ($resultSet instanceof core_kernel_classes_ContainerCollection) {
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$returnValue = $this->evalutateSetOperation($operator, $returnValue, $resultSet);
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} else {
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$collection = new core_kernel_classes_ContainerCollection($this);
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$collection->add($resultSet);
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$returnValue = $this->evalutateSetOperation($operator, $returnValue, $collection);
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}
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} else {
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throw new common_Exception('Bad Type , waiting for a Resource ');
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}
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}
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return $returnValue;
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}
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/**
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* Short description of method evaluateConst
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*
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* @access protected
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* @author firstname and lastname of author, <author@example.org>
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* @return mixed
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*/
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protected function evaluateConst()
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{
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common_Logger::d('CONSTANTE TYPE', ['Generis Term evaluateConst']);
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$property = new core_kernel_classes_Property(RulesRdf::PROPERTY_TERM_VALUE);
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return $this->getUniquePropertyValue($property);
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}
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/**
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* Short description of method evaluateOperation
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*
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* @access protected
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* @author firstname and lastname of author, <author@example.org>
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* @param array variable
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* @return mixed
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*/
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protected function evaluateOperation($variable = [])
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{
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common_Logger::d('OPERATION TYPE', ['Generis Term evaluateOperation']);
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return $this->evaluateArithmOperation($variable);
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}
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/**
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* Short description of method evaluateArtihmOperation
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*
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* @access public
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* @author firstname and lastname of author, <author@example.org>
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* @param array $variable
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* @return mixed
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*/
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public function evaluateArithmOperation($variable = [])
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{
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$operation = new core_kernel_rules_Operation($this->getUri(), __METHOD__);
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return $operation->evaluate($variable);
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}
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}
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