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[ric-plt/sdl.git] / include / private / configurationreader.hpp

diff --git a/include/private/configurationreader.hpp b/include/private/configurationreader.hpp
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+/*
+   Copyright (c) 2018-2019 Nokia.
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+#ifndef SHAREDDATALAYER_CONFIGURATIONREADER_HPP_
+#define SHAREDDATALAYER_CONFIGURATIONREADER_HPP_
+
+#define DB_HOST_ENV_VAR_NAME "DBAAS_SERVICE_HOST"
+#define DB_PORT_ENV_VAR_NAME "DBAAS_SERVICE_PORT"
+
+#include <iosfwd>
+#include <string>
+#include <unordered_map>
+#include <boost/property_tree/ptree.hpp>
+#include <sdl/exception.hpp>
+#include "private/configurationpaths.hpp"
+#include "private/logger.hpp"
+
+namespace shareddatalayer
+{
+    class DatabaseConfiguration;
+    class NamespaceConfigurations;
+    class System;
+
+    class ConfigurationReader
+    {
+    public:
+        explicit ConfigurationReader(std::shared_ptr<Logger> logger);
+
+        ConfigurationReader(const Directories& directories,
+                            System& system,
+                            std::shared_ptr<Logger> logger);
+
+        ~ConfigurationReader();
+
+        void readDatabaseConfiguration(DatabaseConfiguration& databaseConfiguration);
+
+        void readNamespaceConfigurations(NamespaceConfigurations& namespaceConfigurations);
+
+        /**
+         * Overrides existing json configuration with json format input stream given as
+         * parameter. Does not override existing configration if existing configration
+         * originates from environment variable. Meant for UT usage.
+         */
+        void readConfigurationFromInputStream(const std::istream& input);
+
+    private:
+        const std::string dbHostEnvVariableName;
+        std::string dbHostEnvVariableValue;
+        const std::string dbPortEnvVariableName;
+        std::string dbPortEnvVariableValue;
+        boost::optional<boost::property_tree::ptree> jsonDatabaseConfiguration;
+        std::string sourceForDatabaseConfiguration;
+        std::unordered_map<std::string, std::pair<boost::property_tree::ptree, std::string>> jsonNamespaceConfigurations;
+        std::shared_ptr<Logger> logger;
+
+        void readConfigurationFromDirectories(const Directories& directories);
+
+        template<typename T>
+        void readConfiguration(T& input, const std::string& sourceName);
+    };
+}
+
+#endif