2701481cbc
This patch adds support for new service level cql queries. The queries implemented are: CREATE SERVICE_LEVEL [IF NOT EXISTS] <service_level_name> ALTER SERVICE_LEVEL <service_level_name> WITH param = <something> DROP SERVICE_LEVEL [IF EXISTS] <service_level_name> ATTACH SERVICE_LEVEL <service_level_name> TO <role_name> DETACH SERVICE_LEVEL FROM <role_name> LIST SERVICE_LEVEL <service_level_name> LIST ALL SERVICE_LEVELS LIST ATTACHED SERVICE_LEVEL OF <role_name> LIST ALL ATTACHED SERVICE_LEVELS
83 lines
3.3 KiB
C++
83 lines
3.3 KiB
C++
/*
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* Copyright (C) 2021 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 "seastarx.hh"
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#include "cql3/statements/list_service_level_statement.hh"
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#include "service/qos/service_level_controller.hh"
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#include "transport/messages/result_message.hh"
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namespace cql3 {
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namespace statements {
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list_service_level_statement::list_service_level_statement(sstring service_level, bool describe_all) :
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_service_level(service_level), _describe_all(describe_all) {
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}
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std::unique_ptr<cql3::statements::prepared_statement>
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cql3::statements::list_service_level_statement::prepare(
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database &db, cql_stats &stats) {
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return std::make_unique<prepared_statement>(::make_shared<list_service_level_statement>(*this));
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}
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void list_service_level_statement::validate(service::storage_proxy &, const service::client_state &) const {
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}
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future<> list_service_level_statement::check_access(service::storage_proxy& sp, const service::client_state &state) const {
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return state.ensure_has_permission(auth::command_desc{.permission = auth::permission::DESCRIBE, .resource = auth::root_service_level_resource()});
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}
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future<::shared_ptr<cql_transport::messages::result_message>>
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list_service_level_statement::execute(query_processor& qp,
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service::query_state &state,
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const query_options &) const {
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static auto make_column = [] (sstring name, const shared_ptr<const abstract_type> type) {
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return make_lw_shared<column_specification>(
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"QOS",
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"service_levels",
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::make_shared<column_identifier>(std::move(name), true),
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type);
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};
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static thread_local const std::vector<lw_shared_ptr<column_specification>> metadata({make_column("service_level", utf8_type)});
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return make_ready_future().then([this, &state] () {
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if (_describe_all) {
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return state.get_service_level_controller().get_distributed_service_levels();
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} else {
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return state.get_service_level_controller().get_distributed_service_level(_service_level);
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}
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})
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.then([this] (qos::service_levels_info sl_info) {
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auto rs = std::make_unique<result_set>(metadata);
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for (auto &&sl : sl_info) {
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rs->add_row(std::vector<bytes_opt>{
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utf8_type->decompose(sl.first)});
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}
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auto rows = ::make_shared<cql_transport::messages::result_message::rows>(result(std::move(std::move(rs))));
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return ::static_pointer_cast<cql_transport::messages::result_message>(rows);
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});
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}
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}
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}
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