f3eade2f62
Drop the AGPL license in favor of a source-available license. See the blog post [1] for details. [1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
97 lines
3.4 KiB
C++
97 lines
3.4 KiB
C++
/*
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* Modified by ScyllaDB
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*
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* Copyright (C) 2015-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (LicenseRef-ScyllaDB-Source-Available-1.0 and Apache-2.0)
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*/
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#pragma once
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#include "exceptions/exceptions.hh"
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#include <seastar/core/format.hh>
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#include <set>
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namespace cql3 {
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namespace statements {
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/**
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* Utility methods use to perform request validation.
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*/
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namespace request_validations {
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template <typename... MessageArgs>
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exceptions::invalid_request_exception
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invalid_request(fmt::format_string<MessageArgs...> message_template, MessageArgs&&... message_args);
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/**
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* Checks that the specified expression is <code>true</code>. If not an <code>InvalidRequestException</code> will
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* be thrown.
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*
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* @param expression the expression to test
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* @param message_template the template used to build the error message
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* @param message_args the message arguments
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* @throws InvalidRequestException if the specified expression is <code>false</code>.
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*/
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template <typename... MessageArgs>
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void check_true(bool expression,
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fmt::format_string<MessageArgs...> message_template,
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MessageArgs&&... message_args) {
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if (!expression) {
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throw exceptions::invalid_request_exception(fmt::format(message_template, std::forward<MessageArgs>(message_args)...));
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}
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}
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/**
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* Checks that the specified expression is <code>false</code>. If not an <code>InvalidRequestException</code> will
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* be thrown.
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*
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* @param expression the expression to test
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* @param message_template the template used to build the error message
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* @param message_args the message arguments
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* @throws InvalidRequestException if the specified expression is <code>true</code>.
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*/
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template <typename... MessageArgs>
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void check_false(bool expression,
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fmt::format_string<MessageArgs...> message_template,
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MessageArgs&&... message_args) {
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check_true(!expression, message_template, std::forward<MessageArgs>(message_args)...);
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}
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/**
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* Checks that the specified object is NOT <code>null</code>.
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* If it is an <code>InvalidRequestException</code> will be throws.
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*
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* @param object the object to test
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* @param message_template the template used to build the error message
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* @param message_args the message arguments
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* @return the object
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* @throws InvalidRequestException if the specified object is <code>null</code>.
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*/
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template <typename T, typename... MessageArgs>
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T check_not_null(T object, fmt::format_string<MessageArgs...> message_template, MessageArgs&... message_args) {
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check_true(bool(object), message_template, std::forward<MessageArgs>(message_args)...);
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return object;
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}
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/**
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* Returns an <code>InvalidRequestException</code> with the specified message.
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*
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* @param message_template the template used to build the error message
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* @param message_args the message arguments
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* @return an <code>InvalidRequestException</code> with the specified message.
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*/
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template <typename... MessageArgs>
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exceptions::invalid_request_exception
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invalid_request(fmt::format_string<MessageArgs...> message_template, MessageArgs&&... message_args) {
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return exceptions::invalid_request_exception(fmt::format(message_template, std::forward<MessageArgs>(message_args)...));
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}
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}
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}
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}
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