6b0d6c36af
In order to migrate IDP from LV 4.x to latest LV version, following task were performed: * Updated namespace to be complain with PSR-4 * General Refactoring: moved all DB access code from services to repositories. * Migration to LV 5.X: these migration guides were applied - https://laravel.com/docs/5.3/upgrade#upgrade-5.0 - https://laravel.com/docs/5.3/upgrade#upgrade-5.1.0 - https://laravel.com/docs/5.3/upgrade#upgrade-5.2.0 * Improved caching: added repositories decorators in order to add REDIS cache to queries, entities Change-Id: I8edf9f5fce6585129701c88bb88332f242307534
97 lines
2.5 KiB
PHP
97 lines
2.5 KiB
PHP
<?php namespace Services\Utils;
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/**
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* Copyright 2016 OpenStack Foundation
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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**/
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use Utils\Services\ICacheService;
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use Utils\Services\ILockManagerService;
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use Utils\Exceptions\UnacquiredLockException;
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use Closure;
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use Exception;
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/**
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* Class LockManagerService
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* @package Services\Utils
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*/
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final class LockManagerService implements ILockManagerService {
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/**
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* @var ICacheService
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*/
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private $cache_service;
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/**
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* LockManagerService constructor.
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* @param ICacheService $cache_service
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*/
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public function __construct(ICacheService $cache_service){
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$this->cache_service = $cache_service;
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}
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/**
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* @param string $name
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* @param int $lifetime
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* @return $this
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* @throws UnacquiredLockException
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*/
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public function acquireLock($name,$lifetime = 3600)
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{
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$time = time()+$lifetime+1;
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$success = $this->cache_service->addSingleValue($name, $time, $time);
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if (!$success)
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{
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// only one time we could use this handle
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throw new UnacquiredLockException(sprintf("lock name %s",$name));
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}
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return $this;
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}
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/**
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* @param string $name
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* @return $this
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*/
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public function releaseLock($name)
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{
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$this->cache_service->delete($name);
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return $this;
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}
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/**
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* @param string $name
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* @param Closure $callback
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* @param int $lifetime
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* @return null
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* @throws UnacquiredLockException
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* @throws Exception
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*/
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public function lock($name, Closure $callback, $lifetime = 3600)
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{
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$result = null;
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try
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{
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$this->acquireLock($name, $lifetime);
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$result = $callback($this);
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$this->releaseLock($name);
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}
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catch(UnacquiredLockException $ex1)
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{
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throw $ex1;
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}
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catch(Exception $ex)
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{
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$this->releaseLock($name);
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throw $ex;
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}
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return $result;
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}
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} |