46 lines
1.6 KiB
C++
46 lines
1.6 KiB
C++
#include "matador/sql/backend_provider.hpp"
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#include <cstdint>
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#include <stdexcept>
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#include <utility>
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namespace matador::sql {
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backend_provider::backend_provider(std::string backends_path)
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: backends_path_(std::move(backends_path)) {}
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connection_impl *backend_provider::create_connection(const std::string &connection_type)
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{
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auto it = backends_.find(connection_type);
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if (it == backends_.end()) {
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it = backends_.emplace(connection_type, backend_context{connection_type, backends_path_}).first;
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}
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return (*it->second.create_connection)();
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}
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const dialect &backend_provider::connection_dialect(const std::string &connection_type)
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{
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auto it = backends_.find(connection_type);
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if (it == backends_.end()) {
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it = backends_.emplace(connection_type, backend_context{connection_type, backends_path_}).first;
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}
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return *(*it->second.get_dialect)();
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}
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backend_provider::backend_context::backend_context(const std::string &connection_type,
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const std::string &backends_path)
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{
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if (!lib.load(backends_path + "matador-" + connection_type)) {
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throw std::runtime_error("couldn't load library '" + connection_type + "'");
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}
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create_connection = reinterpret_cast<create_func>(reinterpret_cast<std::uintptr_t>(lib.function("create_database")));
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destroy_connection = reinterpret_cast<destroy_func>(reinterpret_cast<std::uintptr_t>(lib.function("destroy_database")));
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get_dialect = reinterpret_cast<dialect_func >(reinterpret_cast<std::uintptr_t>(lib.function("get_dialect")));
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}
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backend_provider::backend_context::~backend_context()
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{
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lib.unload();
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}
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} |