126 lines
4.4 KiB
C++
126 lines
4.4 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. 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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*/
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/*
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* Copyright (C) 2015 ScyllaDB
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*
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* Modified by 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/schema_altering_statement.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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schema_altering_statement::schema_altering_statement(timeout_config_selector timeout_selector)
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: cf_statement{::shared_ptr<cf_name>{}}
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, cql_statement_no_metadata(timeout_selector)
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, _is_column_family_level{false}
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{
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}
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schema_altering_statement::schema_altering_statement(::shared_ptr<cf_name> name, timeout_config_selector timeout_selector)
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: cf_statement{std::move(name)}
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, cql_statement_no_metadata(timeout_selector)
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, _is_column_family_level{true}
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{
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}
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future<> schema_altering_statement::grant_permissions_to_creator(const service::client_state&) {
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return make_ready_future<>();
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}
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bool schema_altering_statement::uses_function(const sstring& ks_name, const sstring& function_name) const
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{
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return cf_statement::uses_function(ks_name, function_name);
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}
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bool schema_altering_statement::depends_on_keyspace(const sstring& ks_name) const
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{
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return false;
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}
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bool schema_altering_statement::depends_on_column_family(const sstring& cf_name) const
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{
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return false;
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}
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uint32_t schema_altering_statement::get_bound_terms()
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{
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return 0;
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}
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void schema_altering_statement::prepare_keyspace(const service::client_state& state)
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{
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if (_is_column_family_level) {
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cf_statement::prepare_keyspace(state);
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}
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}
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future<::shared_ptr<messages::result_message>>
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schema_altering_statement::execute0(service::storage_proxy& proxy, service::query_state& state, const query_options& options, bool is_local_only) {
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// If an IF [NOT] EXISTS clause was used, this may not result in an actual schema change. To avoid doing
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// extra work in the drivers to handle schema changes, we return an empty message in this case. (CASSANDRA-7600)
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return announce_migration(proxy, is_local_only).then([this] (auto ce) {
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::shared_ptr<messages::result_message> result;
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if (!ce) {
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result = ::make_shared<messages::result_message::void_message>();
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} else {
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result = ::make_shared<messages::result_message::schema_change>(ce);
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}
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return make_ready_future<::shared_ptr<messages::result_message>>(result);
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});
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}
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future<::shared_ptr<messages::result_message>>
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schema_altering_statement::execute(service::storage_proxy& proxy, service::query_state& state, const query_options& options) {
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bool internal = state.get_client_state().is_internal();
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return execute0(proxy, state, options, internal).then([this, &state, internal](::shared_ptr<messages::result_message> result) {
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auto permissions_granted_fut = internal
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? make_ready_future<>()
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: grant_permissions_to_creator(state.get_client_state());
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return permissions_granted_fut.then([result = std::move(result)] {
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return result;
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});
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});
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}
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}
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}
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