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https://github.com/scylladb/scylladb.git
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d768e9fac5
Stop using database (and including database.hh) for schema related purposes and use data_dictionary instead. data_dictionary::database::real_database() is called from several places, for these reasons: - calling yet-to-be-converted code - callers with a legitimate need to access data (e.g. system_keyspace) but with the ::database accessor removed from query_processor. We'll need to find another way to supply system_keyspace with data access. - to gain access to the wasm engine for testing whether used defined functions compile. We'll have to find another way to do this as well. The change is a straightforward replacement. One case in modification_statement had to change a capture, but everything else was just a search-and-replace. Some files that lost "database.hh" gained "mutation.hh", which they previously had access to through "database.hh".
102 lines
4.3 KiB
C++
102 lines
4.3 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 <seastar/core/coroutine.hh>
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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 "data_dictionary/data_dictionary.hh"
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#include "database.hh" // for wasm
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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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shared_ptr<functions::function> 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" && _language != "xwasm") {
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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.data_dictionary();
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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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return ::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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} else if (_language == "xwasm") {
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// FIXME: need better way to test wasm compilation without real_database()
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wasm::context ctx{db.real_database().wasm_engine(), _name.name};
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try {
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wasm::compile(ctx, arg_names, _body);
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return ::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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} catch (const wasm::exception& we) {
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throw exceptions::invalid_request_exception(we.what());
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}
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}
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return nullptr;
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}
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std::unique_ptr<prepared_statement> create_function_statement::prepare(data_dictionary::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<std::pair<::shared_ptr<cql_transport::event::schema_change>, std::vector<mutation>>>
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create_function_statement::prepare_schema_mutations(query_processor& qp) const {
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::shared_ptr<cql_transport::event::schema_change> ret;
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std::vector<mutation> m;
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auto func = dynamic_pointer_cast<functions::user_function>(validate_while_executing(qp.proxy()));
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if (func) {
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m = co_await qp.get_migration_manager().prepare_new_function_announcement(func);
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ret = create_schema_change(*func, true);
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}
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co_return std::make_pair(std::move(ret), std::move(m));
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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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