01599ffbae
Support to delete multiple keys in one DEL command. The feature of returning number of the really deleted keys is still not supported. Return empty string to client for GET command when the required key is not exists. Fixes: #5334 Signed-off-by: Peng Jian <pengjian.uestc@gmail.com>
60 lines
2.1 KiB
C++
60 lines
2.1 KiB
C++
/*
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* Copyright (C) 2019 pengjian.uestc @ gmail.com
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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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#pragma once
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#include <stdexcept>
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#include <seastar/core/print.hh>
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class redis_exception : public std::exception {
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sstring _message;
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public:
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redis_exception(sstring message) : _message(std::move(message)) {}
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virtual const char* what() const noexcept override { return _message.begin(); }
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const sstring& what_message() const noexcept { return _message; }
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};
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class wrong_arguments_exception : public redis_exception {
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public:
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wrong_arguments_exception(size_t expected, size_t given, const bytes& command)
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: redis_exception(sprint("wrong number of arguments (given %ld, expected %ld) for '%s' command", given, expected, sstring(reinterpret_cast<const char*>(command.data()), command.size())))
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{
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}
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};
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class wrong_number_of_arguments_exception : public redis_exception {
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public:
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wrong_number_of_arguments_exception(const bytes& command)
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: redis_exception(sprint("wrong number of arguments for '%s' command", sstring(reinterpret_cast<const char*>(command.data()), command.size())))
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{
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}
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};
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class invalid_arguments_exception : public redis_exception {
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public:
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invalid_arguments_exception(const bytes& command) : redis_exception(sprint("invalid argument for '%s' command", command)) {}
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};
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class invalid_db_index_exception : public redis_exception {
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public:
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invalid_db_index_exception() : redis_exception("invalid DB index") {}
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};
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