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| 1 | <?php |
| 2 | |
| 3 | /** |
| 4 | * This program is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU General Public License |
| 6 | * as published by the Free Software Foundation; under version 2 |
| 7 | * of the License (non-upgradable). |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program; if not, write to the Free Software |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 17 | * |
| 18 | * Copyright (c) 2015 (original work) Open Assessment Technologies SA; |
| 19 | * |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | class core_kernel_classes_ResourceFormatter |
| 24 | { |
| 25 | public function getResourceDescription(core_kernel_classes_Resource $resource, $fromDefinition = true) |
| 26 | { |
| 27 | $returnValue = new stdClass(); |
| 28 | $properties = []; |
| 29 | if ($fromDefinition) { |
| 30 | $types = $resource->getTypes(); |
| 31 | foreach ($types as $type) { |
| 32 | foreach ($type->getProperties(true) as $property) { |
| 33 | //$this->$$property->getUri() = array($property->getLabel(),$this->getPropertyValues()); |
| 34 | $properties[$property->getUri()] = $property; |
| 35 | } |
| 36 | } |
| 37 | //var_dump($properties); |
| 38 | $properties = array_unique($properties); |
| 39 | $propertiesValues = $resource->getPropertiesValues($properties); |
| 40 | if (count($propertiesValues) == 0) { |
| 41 | throw new common_exception_NoContent(); |
| 42 | } |
| 43 | $propertiesValuesStdClasses = $this->propertiesValuestoStdClasses($propertiesValues); |
| 44 | } else { //get effective triples and map the returned information into the same structure |
| 45 | $triples = $resource->getRdfTriples(); |
| 46 | if (count($triples) == 0) { |
| 47 | throw new common_exception_NoContent(); |
| 48 | } |
| 49 | foreach ($triples as $triple) { |
| 50 | $properties[$triple->predicate][] = common_Utils::isUri($triple->object) |
| 51 | ? new core_kernel_classes_Resource($triple->object) |
| 52 | : new core_kernel_classes_Literal($triple->object); |
| 53 | } |
| 54 | $propertiesValuesStdClasses = $this->propertiesValuestoStdClasses($properties); |
| 55 | } |
| 56 | |
| 57 | $returnValue->uri = $resource->getUri(); |
| 58 | $returnValue->properties = $propertiesValuesStdClasses; |
| 59 | return $returnValue; |
| 60 | } |
| 61 | |
| 62 | /** |
| 63 | * small helper provide more convenient data structure for propertiesValues for exchange |
| 64 | * @return array |
| 65 | */ |
| 66 | private function propertiesValuestoStdClasses($propertiesValues = null) |
| 67 | { |
| 68 | $returnValue = []; |
| 69 | foreach ($propertiesValues as $uri => $values) { |
| 70 | $propStdClass = new stdClass(); |
| 71 | $propStdClass->predicateUri = $uri; |
| 72 | foreach ($values as $value) { |
| 73 | $stdValue = new stdClass(); |
| 74 | $stdValue->valueType = (get_class($value) == "core_kernel_classes_Literal") ? "literal" : "resource"; |
| 75 | $stdValue->value = (get_class($value) == "core_kernel_classes_Literal") |
| 76 | ? $value->__toString() |
| 77 | : $value->getUri(); |
| 78 | $propStdClass->values[] = $stdValue; |
| 79 | } |
| 80 | $returnValue[] = $propStdClass; |
| 81 | } |
| 82 | return $returnValue; |
| 83 | } |
| 84 | } |