Files
scylladb/cql3/statements/index_target.cc
2017-05-04 14:59:11 +03:00

128 lines
4.2 KiB
C++

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright (C) 2015 ScyllaDB
*
* Modified by ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdexcept>
#include "index_target.hh"
#include "db/index/secondary_index.hh"
namespace cql3 {
namespace statements {
using db::index::secondary_index;
const sstring index_target::target_option_name = "target";
const sstring index_target::custom_index_option_name = "class_name";
sstring index_target::as_cql_string(schema_ptr schema) const {
if (!schema->get_column_definition(column->name())->type->is_collection()) {
return column->to_cql_string();
}
return sprint("%s(%s)", to_sstring(type), column->to_cql_string());
}
sstring index_target::index_option(target_type type) {
switch (type) {
case target_type::keys: return secondary_index::index_keys_option_name;
case target_type::keys_and_values: return secondary_index::index_entries_option_name;
case target_type::values: return secondary_index::index_values_option_name;
default: throw std::invalid_argument("should not reach");
}
}
index_target::target_type
index_target::from_column_definition(const column_definition &cd) {
auto& opts = cd.idx_info.index_options;
if (!opts) {
throw std::invalid_argument("No index options");
}
if (opts->count(secondary_index::index_keys_option_name)) {
return target_type::keys;
} else if (opts->count(secondary_index::index_entries_option_name)) {
return target_type::keys_and_values;
} else if (cd.type->is_collection() && !cd.type->is_multi_cell()) {
return target_type::full;
} else {
return target_type::values;
}
}
::shared_ptr<index_target::raw>
index_target::raw::values_of(::shared_ptr<column_identifier::raw> c) {
return ::make_shared<raw>(c, target_type::values);
}
::shared_ptr<index_target::raw>
index_target::raw::keys_of(::shared_ptr<column_identifier::raw> c) {
return ::make_shared<raw>(c, target_type::keys);
}
::shared_ptr<index_target::raw>
index_target::raw::keys_and_values_of(::shared_ptr<column_identifier::raw> c) {
return ::make_shared<raw>(c, target_type::keys_and_values);
}
::shared_ptr<index_target::raw>
index_target::raw::full_collection(::shared_ptr<column_identifier::raw> c) {
return ::make_shared<raw>(c, target_type::full);
}
::shared_ptr<index_target>
index_target::raw::prepare(schema_ptr schema) {
return ::make_shared<index_target>(column->prepare_column_identifier(schema), type);
}
sstring to_sstring(index_target::target_type type)
{
switch (type) {
case index_target::target_type::keys: return "keys";
case index_target::target_type::keys_and_values: return "entries";
case index_target::target_type::values: return "values";
case index_target::target_type::full: return "full";
}
return "";
}
}
}