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<?php |
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/** |
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* Copyright (c) 2016, HelloFresh GmbH. |
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* All rights reserved. |
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* |
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* This source code is licensed under the MIT license found in the |
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* LICENSE file in the root directory of this source tree. |
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*/ |
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namespace HelloFresh\FeatureToggle\Serializer; |
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use Collections\ArrayList; |
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use Collections\MapInterface; |
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use Collections\VectorInterface; |
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use HelloFresh\FeatureToggle\Feature; |
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use HelloFresh\FeatureToggle\FeatureInterface; |
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use HelloFresh\FeatureToggle\OperatorCondition; |
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use HelloFresh\FeatureToggle\ToggleStatus; |
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use HelloFresh\FeatureToggle\ToggleStrategy; |
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class ToggleSerializer |
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{ |
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private $operatorConditionSerializer; |
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public function __construct(OperatorConditionSerializer $operatorConditionSerializer) |
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{ |
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$this->operatorConditionSerializer = $operatorConditionSerializer; |
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} |
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/** |
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* @param FeatureInterface $feature |
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* |
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* @return string |
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*/ |
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public function serialize(FeatureInterface $feature) |
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{ |
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return [ |
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'name' => $feature->getName(), |
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'conditions' => $this->serializeConditions($feature->getConditions()), |
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'status' => $this->serializeStatus($feature), |
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'strategy' => $this->serializeStrategy($feature) |
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]; |
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} |
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/** |
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* @param MapInterface $data |
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* |
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* @return FeatureInterface |
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*/ |
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public function deserialize(MapInterface $data) |
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{ |
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/** @var MapInterface $conditions */ |
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$conditions = $data->get('conditions'); |
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if (!$conditions instanceof MapInterface) { |
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throw new \RuntimeException('Key "conditions" should be an MapInterface.'); |
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} |
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$toggle = new Feature( |
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$data->get('name'), |
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$this->deserializeConditions($conditions), |
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$data->containsKey('strategy') ? $this->deserializeStrategy($data->get('strategy')) : ToggleStrategy::AFFIRMATIVE |
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); |
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if ($data->containsKey('status')) { |
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$this->deserializeStatus($toggle, $data->get('status')); |
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} |
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return $toggle; |
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} |
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private function serializeConditions(VectorInterface $conditions) |
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{ |
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$serialized = array(); |
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foreach ($conditions as $condition) { |
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if (!$condition instanceof OperatorCondition) { |
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throw new \RuntimeException(sprintf('Unable to serialize %s.', get_class($condition))); |
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} |
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$serialized[] = $this->operatorConditionSerializer->serialize($condition); |
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} |
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return $serialized; |
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} |
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private function deserializeConditions(MapInterface $conditions) |
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{ |
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$deserialized = new ArrayList(); |
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foreach ($conditions as $condition) { |
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$deserialized->add($this->operatorConditionSerializer->deserialize($condition)); |
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} |
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return $deserialized; |
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} |
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private function serializeStatus(FeatureInterface $feature) |
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{ |
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switch ($feature->getStatus()) { |
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case ToggleStatus::ALWAYS_ACTIVE: |
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return 'always-active'; |
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case ToggleStatus::INACTIVE: |
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return 'inactive'; |
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case ToggleStatus::CONDITIONALLY_ACTIVE: |
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return 'conditionally-active'; |
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} |
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} |
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private function deserializeStatus(FeatureInterface $feature, $status) |
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{ |
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switch ($feature) { |
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case 'always-active': |
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$feature->activate(ToggleStatus::ALWAYS_ACTIVE); |
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return; |
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case 'inactive': |
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$feature->deactivate(); |
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return; |
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case 'conditionally-active': |
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$feature->activate(ToggleStatus::CONDITIONALLY_ACTIVE); |
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return; |
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} |
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throw new \RuntimeException(sprintf('Unknown toggle status "%s".', $status)); |
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} |
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/** |
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* @param FeatureInterface $feature |
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* |
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* @return string |
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*/ |
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private function serializeStrategy(FeatureInterface $feature) |
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{ |
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switch ($feature->getStrategy()) { |
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case ToggleStrategy::AFFIRMATIVE: |
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return 'affirmative'; |
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case ToggleStrategy::MAJORITY: |
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return 'majority'; |
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case ToggleStrategy::UNANIMOUS: |
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return 'unanimous'; |
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} |
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} |
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/** |
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* @param string $strategy |
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* |
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* @return int |
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*/ |
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private function deserializeStrategy($strategy) |
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{ |
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switch ($strategy) { |
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case 'affirmative': |
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return ToggleStrategy::AFFIRMATIVE; |
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case 'majority': |
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return ToggleStrategy::MAJORITY; |
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case 'unanimous': |
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return ToggleStrategy::UNANIMOUS; |
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} |
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throw new \RuntimeException(sprintf('Unknown toggle strategy "%s".', $strategy)); |
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} |
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} |
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hellofresh /
feature-toggle
