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12 |
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) 2021 (original work) Open Assessment Technologies SA. |
19 | */ |
20 | |
21 | declare(strict_types=1); |
22 | |
23 | namespace oat\taoBackOffice\model\ListElement\Service; |
24 | |
25 | use core_kernel_classes_Class; |
26 | use oat\tao\model\Context\ContextInterface; |
27 | use oat\tao\model\Lists\Business\Domain\ValueCollection; |
28 | use oat\tao\model\Specification\ClassSpecificationInterface; |
29 | use oat\tao\model\Lists\Business\Service\ValueCollectionService; |
30 | use oat\tao\model\Lists\Business\Input\ValueCollectionSearchInput; |
31 | use oat\tao\model\Lists\Business\Domain\ValueCollectionSearchRequest; |
32 | use oat\taoBackOffice\model\ListElement\Context\ListElementsFinderContext; |
33 | use oat\taoBackOffice\model\ListElement\Contract\ListElementsFinderInterface; |
34 | |
35 | class ListElementsFinder implements ListElementsFinderInterface |
36 | { |
37 | /** @var ClassSpecificationInterface */ |
38 | private $remoteListClassSpecification; |
39 | |
40 | /** @var ValueCollectionService */ |
41 | private $valueCollectionService; |
42 | |
43 | /** @var int */ |
44 | private $localListElementsLimit; |
45 | |
46 | /** @var int */ |
47 | private $remoteListElementsLimit; |
48 | |
49 | public function __construct( |
50 | ClassSpecificationInterface $remoteListClassSpecification, |
51 | ValueCollectionService $valueCollectionService, |
52 | int $localListElementsLimit, |
53 | int $remoteListElementsLimit |
54 | ) { |
55 | $this->remoteListClassSpecification = $remoteListClassSpecification; |
56 | $this->valueCollectionService = $valueCollectionService; |
57 | $this->localListElementsLimit = $localListElementsLimit; |
58 | $this->remoteListElementsLimit = $remoteListElementsLimit; |
59 | } |
60 | |
61 | public function find(ContextInterface $context): ValueCollection |
62 | { |
63 | /** @var core_kernel_classes_Class $listClass */ |
64 | $listClass = $context->getParameter(ListElementsFinderContext::PARAMETER_LIST_CLASS); |
65 | |
66 | $request = new ValueCollectionSearchRequest(); |
67 | $request->setValueCollectionUri($listClass->getUri()); |
68 | |
69 | $totalCount = $this->valueCollectionService->count(new ValueCollectionSearchInput($request)); |
70 | |
71 | $this |
72 | ->setRequestOffset($request, $context) |
73 | ->setRequestLimit($request, $context); |
74 | |
75 | $valueCollection = $this->valueCollectionService->findAll(new ValueCollectionSearchInput($request)); |
76 | $valueCollection->setTotalCount($totalCount); |
77 | |
78 | return $valueCollection; |
79 | } |
80 | |
81 | private function setRequestOffset(ValueCollectionSearchRequest $request, ContextInterface $context): self |
82 | { |
83 | $offset = $context->getParameter(ListElementsFinderContext::PARAMETER_OFFSET, 0); |
84 | |
85 | if ($offset) { |
86 | $request->setOffset($offset); |
87 | } |
88 | |
89 | return $this; |
90 | } |
91 | |
92 | private function setRequestLimit(ValueCollectionSearchRequest $request, ContextInterface $context): void |
93 | { |
94 | $limit = $this->getLimit($context); |
95 | |
96 | if ($limit) { |
97 | $request->setLimit($limit); |
98 | } |
99 | } |
100 | |
101 | private function getLimit(ContextInterface $context): int |
102 | { |
103 | if ($context->getParameter(ListElementsFinderContext::PARAMETER_LIMIT) === null) { |
104 | /** @var core_kernel_classes_Class $listClass */ |
105 | $listClass = $context->getParameter(ListElementsFinderContext::PARAMETER_LIST_CLASS); |
106 | $isRemoteList = $this->remoteListClassSpecification->isSatisfiedBy($listClass); |
107 | |
108 | return $isRemoteList |
109 | ? $this->remoteListElementsLimit |
110 | : $this->localListElementsLimit; |
111 | } |
112 | |
113 | return $context->getParameter(ListElementsFinderContext::PARAMETER_LIMIT); |
114 | } |
115 | } |