134 lines
5.0 KiB
C++
134 lines
5.0 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 2015 Cloudius Systems
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*
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* Modified by Cloudius Systems
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*/
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#pragma once
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#include <regex>
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#include "cql3/statements/schema_altering_statement.hh"
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#include "cql3/statements/ks_prop_defs.hh"
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#include "service/migration_manager.hh"
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#include "transport/event.hh"
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#include "core/shared_ptr.hh"
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namespace cql3 {
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namespace statements {
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/** A <code>CREATE KEYSPACE</code> statement parsed from a CQL query. */
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class create_keyspace_statement : public schema_altering_statement {
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private:
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sstring _name;
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shared_ptr<ks_prop_defs> _attrs;
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bool _if_not_exists;
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public:
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/**
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* Creates a new <code>CreateKeyspaceStatement</code> instance for a given
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* keyspace name and keyword arguments.
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*
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* @param name the name of the keyspace to create
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* @param attrs map of the raw keyword arguments that followed the <code>WITH</code> keyword.
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*/
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create_keyspace_statement(const sstring& name, shared_ptr<ks_prop_defs> attrs, bool if_not_exists)
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: _name{name}
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, _attrs{attrs}
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, _if_not_exists{if_not_exists}
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{ }
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virtual const sstring& keyspace() const override {
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return _name;
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}
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virtual void check_access(const service::client_state& state) override {
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warn(unimplemented::cause::PERMISSIONS);
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#if 0
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state.hasAllKeyspacesAccess(Permission.CREATE);
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#endif
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}
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/**
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* The <code>CqlParser</code> only goes as far as extracting the keyword arguments
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* from these statements, so this method is responsible for processing and
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* validating.
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*
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* @throws InvalidRequestException if arguments are missing or unacceptable
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*/
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virtual void validate(distributed<service::storage_proxy>&, const service::client_state& state) override {
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std::string name;
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name.resize(_name.length());
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std::transform(_name.begin(), _name.end(), name.begin(), ::tolower);
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if (name == db::system_keyspace::NAME) {
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throw exceptions::invalid_request_exception("system keyspace is not user-modifiable");
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}
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// keyspace name
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std::regex name_regex("\\w+");
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if (!std::regex_match(name, name_regex)) {
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throw exceptions::invalid_request_exception(sprint("\"%s\" is not a valid keyspace name", _name.c_str()));
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}
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if (name.length() > schema::NAME_LENGTH) {
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throw exceptions::invalid_request_exception(sprint("Keyspace names shouldn't be more than %" PRId32 " characters long (got \"%s\")", schema::NAME_LENGTH, _name.c_str()));
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}
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_attrs->validate();
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if (!bool(_attrs->get_replication_strategy_class())) {
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throw exceptions::configuration_exception("Missing mandatory replication strategy class");
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}
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#if 0
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// The strategy is validated through KSMetaData.validate() in announceNewKeyspace below.
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// However, for backward compatibility with thrift, this doesn't validate unexpected options yet,
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// so doing proper validation here.
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AbstractReplicationStrategy.validateReplicationStrategy(name,
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AbstractReplicationStrategy.getClass(attrs.getReplicationStrategyClass()),
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StorageService.instance.getTokenMetadata(),
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DatabaseDescriptor.getEndpointSnitch(),
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attrs.getReplicationOptions());
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#endif
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}
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virtual future<bool> announce_migration(distributed<service::storage_proxy>& proxy, bool is_local_only) override {
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return service::migration_manager::announce_new_keyspace(proxy, _attrs->as_ks_metadata(_name), is_local_only).then_wrapped([this] (auto&& f) {
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try {
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f.get();
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return true;
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} catch (const exceptions::already_exists_exception& e) {
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if (_if_not_exists) {
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return false;
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}
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throw e;
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}
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});
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}
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virtual shared_ptr<transport::event::schema_change> change_event() override {
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return make_shared<transport::event::schema_change>(transport::event::schema_change::change_type::CREATED, keyspace());
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}
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};
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}
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}
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