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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) 2013 (original work) Open Assessment Technologies SA (under the project TAO-PRODUCT); |
19 | * |
20 | * |
21 | */ |
22 | |
23 | use oat\tao\model\WfEngineOntology; |
24 | |
25 | /** |
26 | * Service to manage services and calls to these services |
27 | * |
28 | * @author Joel Bout, <joel@taotesting.com> |
29 | */ |
30 | class tao_models_classes_service_ServiceCallHelper |
31 | { |
32 | public const CACHE_PREFIX_URL = 'tao_service_url_'; |
33 | |
34 | public const CACHE_PREFIX_PARAM_NAME = 'tao_service_param_'; |
35 | |
36 | public static function getBaseUrl($serviceDefinitionId) |
37 | { |
38 | |
39 | try { |
40 | $url = common_cache_FileCache::singleton()->get(self::CACHE_PREFIX_URL . urlencode($serviceDefinitionId)); |
41 | } catch (common_cache_NotFoundException $e) { |
42 | $serviceDefinition = new core_kernel_classes_Resource($serviceDefinitionId); |
43 | $serviceDefinitionUrl = $serviceDefinition->getOnePropertyValue( |
44 | new core_kernel_classes_Property(WfEngineOntology::PROPERTY_SUPPORT_SERVICES_URL) |
45 | ); |
46 | |
47 | $serviceUrl = ($serviceDefinitionUrl instanceof core_kernel_classes_Resource) ? |
48 | // hack nescessary since fully qualified urls are considered to be resources |
49 | $serviceUrl = $serviceDefinitionUrl->getUri() : |
50 | $serviceUrl = $serviceDefinitionUrl->literal; // instanceof Literal |
51 | |
52 | // Remove the parameters because they are only for show, and they are actualy encoded in the variables |
53 | $urlPart = explode('?', $serviceUrl); |
54 | $url = $urlPart[0]; |
55 | |
56 | common_cache_FileCache::singleton()->put($url, self::CACHE_PREFIX_URL . urlencode($serviceDefinitionId)); |
57 | } |
58 | if ($url[0] == '/') { |
59 | //create absolute url (prevent issue when TAO installed on a subfolder |
60 | $url = ROOT_URL . ltrim($url, '/'); |
61 | } |
62 | return $url; |
63 | } |
64 | |
65 | public static function getInputValues(tao_models_classes_service_ServiceCall $serviceCall, $callParameters) |
66 | { |
67 | $returnValue = []; |
68 | foreach ($serviceCall->getInParameters() as $param) { |
69 | $paramKey = self::getParamName($param->getDefinition()); |
70 | switch (get_class($param)) { |
71 | case 'tao_models_classes_service_ConstantParameter': |
72 | $returnValue[$paramKey] = $param->getValue(); |
73 | break; |
74 | case 'tao_models_classes_service_VariableParameter': |
75 | $variableCode = (string)$param->getVariable()->getUniquePropertyValue( |
76 | new core_kernel_classes_Property(PROPERTY_PROCESSVARIABLES_CODE) |
77 | ); |
78 | if (isset($callParameters[$variableCode])) { |
79 | $returnValue[$paramKey] = $callParameters[$variableCode]; |
80 | } else { |
81 | common_Logger::w('No variable ' . $variableCode . ' provided for paramter ' . $paramKey); |
82 | } |
83 | break; |
84 | default: |
85 | throw new common_exception_Error('Unknown class of parameter: ' . get_class($param)); |
86 | } |
87 | } |
88 | return $returnValue; |
89 | } |
90 | |
91 | protected static function getParamName(core_kernel_classes_Resource $paramDefinition) |
92 | { |
93 | try { |
94 | $paramKey = common_cache_FileCache::singleton()->get( |
95 | self::CACHE_PREFIX_PARAM_NAME . urlencode($paramDefinition->getUri()) |
96 | ); |
97 | } catch (common_cache_NotFoundException $e) { |
98 | $paramKey = common_Utils::fullTrim( |
99 | $paramDefinition->getUniquePropertyValue( |
100 | new core_kernel_classes_Property(WfEngineOntology::PROPERTY_FORMAL_PARAMETER_NAME) |
101 | ) |
102 | ); |
103 | common_cache_FileCache::singleton()->put( |
104 | $paramKey, |
105 | self::CACHE_PREFIX_PARAM_NAME . urlencode($paramDefinition->getUri()) |
106 | ); |
107 | } |
108 | return $paramKey; |
109 | } |
110 | } |