86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
// Copyright 2016 Etix Labs
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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#pragma once
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#include <cppconn/resultset.h> // for ResultSet
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#include <mutex> // for mutex
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#include <stdbool.h> // for bool, false
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#include <string> // for string
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#include <utility> // for pair, make_pair
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#include "query_result.h"
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namespace sql {
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class Connection;
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class Driver;
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class ResultSet;
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}
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namespace etix {
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namespace cameradar {
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namespace mysql {
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//! MySQL Database connection handling
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//! Abstracts all connection to the database
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class db_connection {
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private:
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static const std::string create_database_query;
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//! SQL driver
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sql::Driver* driver = nullptr;
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//! SQL connection
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sql::Connection* connection = nullptr;
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std::mutex access_mtx;
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bool connected = false;
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std::string db_name;
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//! Create the database if it doesn't exist at connector launch
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empty_result create_database(void);
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public:
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db_connection(void);
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~db_connection(void);
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//! Try to connect to the database
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std::pair<bool, std::string> connect(const std::string& host,
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const std::string& user,
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const std::string& pass,
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const std::string& db_name,
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bool create_db_if_not_exist = true);
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//! Execute a MySQL command
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empty_result execute(const std::string& request);
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//! Execute a query
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query_result<sql::ResultSet*> query(const std::string& query);
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bool is_connected();
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//! Return db_name
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const std::string&
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get_db_name(void) const {
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return this->db_name;
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}
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};
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} // mysql
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} // cameradar
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} // etix
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