85 lines
3.4 KiB
C++
85 lines
3.4 KiB
C++
/*
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* Copyright (C) 2019-present ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "cql3/statements/create_function_statement.hh"
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#include "cql3/functions/functions.hh"
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#include "cql3/functions/user_function.hh"
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#include "prepared_statement.hh"
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#include "service/migration_manager.hh"
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#include "service/storage_proxy.hh"
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#include "lang/lua.hh"
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#include "database.hh"
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#include "cql3/query_processor.hh"
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namespace cql3 {
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namespace statements {
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void create_function_statement::create(service::storage_proxy& proxy, functions::function* old) const {
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if (old && !dynamic_cast<functions::user_function*>(old)) {
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throw exceptions::invalid_request_exception(format("Cannot replace '{}' which is not a user defined function", *old));
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}
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if (_language != "lua") {
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throw exceptions::invalid_request_exception(format("Language '{}' is not supported", _language));
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}
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data_type return_type = prepare_type(proxy, *_return_type);
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std::vector<sstring> arg_names;
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for (const auto& arg_name : _arg_names) {
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arg_names.push_back(arg_name->to_string());
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}
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auto&& db = proxy.get_db().local();
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if (_language == "lua") {
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auto cfg = lua::make_runtime_config(db.get_config());
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functions::user_function::context ctx = functions::user_function::lua_context {
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.bitcode = lua::compile(cfg, arg_names, _body),
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.cfg = cfg,
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};
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_func = ::make_shared<functions::user_function>(_name, _arg_types, std::move(arg_names), _body, _language,
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std::move(return_type), _called_on_null_input, std::move(ctx));
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}
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return;
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}
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std::unique_ptr<prepared_statement> create_function_statement::prepare(database& db, cql_stats& stats) {
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return std::make_unique<prepared_statement>(make_shared<create_function_statement>(*this));
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}
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future<shared_ptr<cql_transport::event::schema_change>> create_function_statement::announce_migration(
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query_processor& qp) const {
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if (!_func) {
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return make_ready_future<::shared_ptr<cql_transport::event::schema_change>>();
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}
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return qp.get_migration_manager().announce_new_function(_func).then([this] {
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return create_schema_change(*_func, true);
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});
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}
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create_function_statement::create_function_statement(functions::function_name name, sstring language, sstring body,
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std::vector<shared_ptr<column_identifier>> arg_names, std::vector<shared_ptr<cql3_type::raw>> arg_types,
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shared_ptr<cql3_type::raw> return_type, bool called_on_null_input, bool or_replace, bool if_not_exists)
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: create_function_statement_base(std::move(name), std::move(arg_types), or_replace, if_not_exists),
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_language(std::move(language)), _body(std::move(body)), _arg_names(std::move(arg_names)),
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_return_type(std::move(return_type)), _called_on_null_input(called_on_null_input) {}
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}
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}
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