128 lines
4.7 KiB
C++
128 lines
4.7 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 2016 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/alter_view_statement.hh"
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#include "cql3/statements/prepared_statement.hh"
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#include "service/migration_manager.hh"
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#include "validation.hh"
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#include "view_info.hh"
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#include "db/extensions.hh"
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#include "database.hh"
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namespace cql3 {
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namespace statements {
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alter_view_statement::alter_view_statement(::shared_ptr<cf_name> view_name, ::shared_ptr<cf_prop_defs> properties)
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: schema_altering_statement{std::move(view_name)}
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, _properties{std::move(properties)}
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{
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}
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future<> alter_view_statement::check_access(const service::client_state& state)
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{
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try {
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auto&& s = service::get_local_storage_proxy().get_db().local().find_schema(keyspace(), column_family());
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if (s->is_view()) {
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return state.has_column_family_access(keyspace(), s->view_info()->base_name(), auth::permission::ALTER);
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}
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} catch (const no_such_column_family& e) {
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// Will be validated afterwards.
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}
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return make_ready_future<>();
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}
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void alter_view_statement::validate(service::storage_proxy&, const service::client_state& state)
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{
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// validated in announce_migration()
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}
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future<shared_ptr<cql_transport::event::schema_change>> alter_view_statement::announce_migration(service::storage_proxy& proxy, bool is_local_only)
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{
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auto&& db = proxy.get_db().local();
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schema_ptr schema = validation::validate_column_family(db, keyspace(), column_family());
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if (!schema->is_view()) {
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throw exceptions::invalid_request_exception("Cannot use ALTER MATERIALIZED VIEW on Table");
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}
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if (!_properties) {
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throw exceptions::invalid_request_exception("ALTER MATERIALIZED VIEW WITH invoked, but no parameters found");
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}
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_properties->validate(proxy.get_db().local().extensions());
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auto builder = schema_builder(schema);
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_properties->apply_to_builder(builder, proxy.get_db().local().extensions());
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if (builder.get_gc_grace_seconds() == 0) {
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throw exceptions::invalid_request_exception(
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"Cannot alter gc_grace_seconds of a materialized view to 0, since this "
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"value is used to TTL undelivered updates. Setting gc_grace_seconds too "
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"low might cause undelivered updates to expire before being replayed.");
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}
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if (builder.default_time_to_live().count() > 0) {
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throw exceptions::invalid_request_exception(
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"Cannot set or alter default_time_to_live for a materialized view. "
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"Data in a materialized view always expire at the same time than "
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"the corresponding data in the parent table.");
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}
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return service::get_local_migration_manager().announce_view_update(view_ptr(builder.build()), is_local_only).then([this] {
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using namespace cql_transport;
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return make_shared<event::schema_change>(
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event::schema_change::change_type::UPDATED,
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event::schema_change::target_type::TABLE,
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keyspace(),
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column_family());
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});
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}
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std::unique_ptr<cql3::statements::prepared_statement>
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alter_view_statement::prepare(database& db, cql_stats& stats) {
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return std::make_unique<prepared_statement>(make_shared<alter_view_statement>(*this));
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}
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}
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}
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