Rolf Badorek | ef2bf51 | 2019-08-20 11:17:15 +0300 | [diff] [blame^] | 1 | /* |
| 2 | Copyright (c) 2018-2019 Nokia. |
| 3 | |
| 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | you may not use this file except in compliance with the License. |
| 6 | You may obtain a copy of the License at |
| 7 | |
| 8 | http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | Unless required by applicable law or agreed to in writing, software |
| 11 | distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | See the License for the specific language governing permissions and |
| 14 | limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef SHAREDDATALAYER_REDIS_ASYNCREDISSTORAGE_HPP_ |
| 18 | #define SHAREDDATALAYER_REDIS_ASYNCREDISSTORAGE_HPP_ |
| 19 | |
| 20 | #include <functional> |
| 21 | #include <memory> |
| 22 | #include <queue> |
| 23 | #include <boost/optional.hpp> |
| 24 | #include <sdl/asyncstorage.hpp> |
| 25 | #include "private/logger.hpp" |
| 26 | #include "private/namespaceconfigurationsimpl.hpp" |
| 27 | #include "private/timer.hpp" |
| 28 | #include "private/redis/databaseinfo.hpp" |
| 29 | #include "private/redis/reply.hpp" |
| 30 | |
| 31 | namespace shareddatalayer |
| 32 | { |
| 33 | namespace redis |
| 34 | { |
| 35 | class AsyncCommandDispatcher; |
| 36 | class AsyncDatabaseDiscovery; |
| 37 | class Reply; |
| 38 | struct Contents; |
| 39 | class ContentsBuilder; |
| 40 | } |
| 41 | |
| 42 | class Engine; |
| 43 | |
| 44 | class AsyncRedisStorage: public AsyncStorage |
| 45 | { |
| 46 | public: |
| 47 | enum class ErrorCode |
| 48 | { |
| 49 | SUCCESS = 0, |
| 50 | REDIS_NOT_YET_DISCOVERED, |
| 51 | INVALID_NAMESPACE, |
| 52 | //Keep this always as last item. Used in unit tests to loop all enum values. |
| 53 | END_MARKER |
| 54 | }; |
| 55 | |
| 56 | using AsyncCommandDispatcherCreator = std::function<std::shared_ptr<redis::AsyncCommandDispatcher>(Engine& engine, |
| 57 | const redis::DatabaseInfo& databaseInfo, |
| 58 | std::shared_ptr<redis::ContentsBuilder> contentsBuilder, |
| 59 | std::shared_ptr<Logger> logger)>; |
| 60 | |
| 61 | static const std::error_category& errorCategory() noexcept; |
| 62 | |
| 63 | AsyncRedisStorage(const AsyncRedisStorage&) = delete; |
| 64 | |
| 65 | AsyncRedisStorage& operator = (const AsyncRedisStorage&) = delete; |
| 66 | |
| 67 | AsyncRedisStorage(std::shared_ptr<Engine> engine, |
| 68 | std::shared_ptr<redis::AsyncDatabaseDiscovery> discovery, |
| 69 | const boost::optional<PublisherId>& pId, |
| 70 | std::shared_ptr<NamespaceConfigurations> namespaceConfigurations, |
| 71 | std::shared_ptr<Logger> logger); |
| 72 | |
| 73 | AsyncRedisStorage(std::shared_ptr<Engine> engine, |
| 74 | std::shared_ptr<redis::AsyncDatabaseDiscovery> discovery, |
| 75 | const boost::optional<PublisherId>& pId, |
| 76 | std::shared_ptr<NamespaceConfigurations> namespaceConfigurations, |
| 77 | const AsyncCommandDispatcherCreator& asyncCommandDispatcherCreator, |
| 78 | std::shared_ptr<redis::ContentsBuilder> contentsBuilder, |
| 79 | std::shared_ptr<Logger> logger); |
| 80 | |
| 81 | ~AsyncRedisStorage() override; |
| 82 | |
| 83 | int fd() const override; |
| 84 | |
| 85 | void handleEvents() override; |
| 86 | |
| 87 | void waitReadyAsync(const Namespace& ns, const ReadyAck& readyAck) override; |
| 88 | |
| 89 | void setAsync(const Namespace& ns, const DataMap& dataMap, const ModifyAck& modifyAck) override; |
| 90 | |
| 91 | void setIfAsync(const Namespace& ns, const Key& key, const Data& oldData, const Data& newData, const ModifyIfAck& modifyIfAck) override; |
| 92 | |
| 93 | void setIfNotExistsAsync(const Namespace& ns, const Key& key, const Data& data, const ModifyIfAck& modifyIfAck) override; |
| 94 | |
| 95 | void getAsync(const Namespace& ns, const Keys& keys, const GetAck& getAck) override; |
| 96 | |
| 97 | void removeAsync(const Namespace& ns, const Keys& keys, const ModifyAck& modifyAck) override; |
| 98 | |
| 99 | void removeIfAsync(const Namespace& ns, const Key& key, const Data& data, const ModifyIfAck& modifyIfAck) override; |
| 100 | |
| 101 | void findKeysAsync(const Namespace& ns, const std::string& keyPrefix, const FindKeysAck& findKeysAck) override; |
| 102 | |
| 103 | void removeAllAsync(const Namespace& ns, const ModifyAck& modifyAck) override; |
| 104 | |
| 105 | redis::DatabaseInfo& getDatabaseInfo(); |
| 106 | |
| 107 | std::string buildKeyPrefixSearchPattern(const Namespace& ns, const std::string& keyPrefix) const; |
| 108 | |
| 109 | private: |
| 110 | std::shared_ptr<Engine> engine; |
| 111 | std::shared_ptr<redis::AsyncCommandDispatcher> dispatcher; |
| 112 | std::shared_ptr<redis::AsyncDatabaseDiscovery> discovery; |
| 113 | const boost::optional<PublisherId> publisherId; |
| 114 | ReadyAck readyAck; |
| 115 | AsyncCommandDispatcherCreator asyncCommandDispatcherCreator; |
| 116 | std::shared_ptr<redis::ContentsBuilder> contentsBuilder; |
| 117 | redis::DatabaseInfo dbInfo; |
| 118 | std::shared_ptr<NamespaceConfigurations> namespaceConfigurations; |
| 119 | std::shared_ptr<Logger> logger; |
| 120 | |
| 121 | bool canOperationBePerformed(const Namespace& ns, boost::optional<bool> inputDataIsEmpty, std::error_code& ecToReturn); |
| 122 | |
| 123 | void serviceStateChanged(const redis::DatabaseInfo& databaseInfo); |
| 124 | |
| 125 | std::string getPublishMessage() const; |
| 126 | |
| 127 | void modificationCommandCallback(const std::error_code& error, const redis::Reply&, const ModifyAck&); |
| 128 | |
| 129 | void conditionalCommandCallback(const std::error_code& error, const redis::Reply&, const ModifyIfAck&); |
| 130 | }; |
| 131 | |
| 132 | AsyncRedisStorage::ErrorCode& operator++ (AsyncRedisStorage::ErrorCode& ecEnum); |
| 133 | std::error_code make_error_code(AsyncRedisStorage::ErrorCode errorCode); |
| 134 | } |
| 135 | |
| 136 | namespace std |
| 137 | { |
| 138 | template <> |
| 139 | struct is_error_code_enum<shareddatalayer::AsyncRedisStorage::ErrorCode>: public true_type { }; |
| 140 | } |
| 141 | |
| 142 | #endif |