service/resource-encapsulation/src/resourceCache/include/ResourceCacheManager.h

   1 //******************************************************************
   2 //
   3 // Copyright 2015 Samsung Electronics All Rights Reserved.
   4 //
   5 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
   6 //
   7 // Licensed under the Apache License, Version 2.0 (the "License");
   8 // you may not use this file except in compliance with the License.
   9 // You may obtain a copy of the License at
  10 //
  11 //      http://www.apache.org/licenses/LICENSE-2.0
  12 //
  13 // Unless required by applicable law or agreed to in writing, software
  14 // distributed under the License is distributed on an "AS IS" BASIS,
  15 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 // See the License for the specific language governing permissions and
  17 // limitations under the License.
  18 //
  19 //-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
  20
  21 #ifndef RCM_RESOURCECACHEMANAGER_H_
  22 #define RCM_RESOURCECACHEMANAGER_H_
  23
  24 #include <list>
  25 #include <string>
  26 #include <mutex>
  27 #include <map>
  28
  29 #include "CacheTypes.h"
  30 #include "DataCache.h"
  31
  32 namespace OIC
  33 {
  34     namespace Service
  35     {
  36         class ResourceCacheManager
  37         {
  38             public:
  39                 class InvalidParameterException: public RCSException
  40                 {
  41                     public:
  42                         InvalidParameterException(std::string &&what)
  43                             : RCSException { std::move(what) } {}
  44                 };
  45
  46                 static ResourceCacheManager *getInstance();
  47
  48                 CacheID requestResourceCache(
  49                     PrimitiveResourcePtr pResource, CacheCB func = NULL,
  50                     REPORT_FREQUENCY rf = REPORT_FREQUENCY::NONE, long time = 0l);
  51                 void cancelResourceCache(CacheID id);
  52
  53                 void updateResourceCache(PrimitiveResourcePtr pResource) const;
  54                 void updateResourceCache(CacheID id) const;
  55
  56                 const ResourceAttributes getCachedData(PrimitiveResourcePtr pResource) const;
  57                 const ResourceAttributes getCachedData(CacheID id) const;
  58
  59                 CACHE_STATE getResourceCacheState(PrimitiveResourcePtr pResource) const;
  60                 CACHE_STATE getResourceCacheState(CacheID id) const;
  61
  62             private:
  63                 static ResourceCacheManager *s_instance;
  64                 static std::mutex s_mutexForCreation;
  65                 static std::unique_ptr<std::list<DataCachePtr>> s_cacheDataList;
  66                 std::map<CacheID, DataCachePtr> cacheIDmap;
  67
  68                 ResourceCacheManager() = default;
  69                 ~ResourceCacheManager();
  70                 ResourceCacheManager(const ResourceCacheManager &) = delete;
  71                 ResourceCacheManager(ResourceCacheManager &&) = delete;
  72
  73                 ResourceCacheManager &operator=(const ResourceCacheManager &) const = delete;
  74                 ResourceCacheManager &operator=(ResourceCacheManager && ) const = delete;
  75
  76                 static void initializeResourceCacheManager();
  77                 DataCachePtr findDataCache(PrimitiveResourcePtr pResource) const;
  78                 DataCachePtr findDataCache(CacheID id) const;
  79         };
  80     } // namespace Service
  81 } // namespace OIC
  82
  83 #endif /* RCM_RESOURCECACHEMANAGER_H_ */