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clio/src/backend/cassandra/Error.h
2023-04-06 11:24:36 +01:00

100 lines
2.7 KiB
C++

//------------------------------------------------------------------------------
/*
This file is part of clio: https://github.com/XRPLF/clio
Copyright (c) 2023, the clio developers.
Permission to use, copy, modify, and distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
//==============================================================================
#pragma once
#include <cassandra.h>
#include <string>
namespace Backend::Cassandra {
/**
* @brief A simple container for both error message and error code
*/
class CassandraError
{
std::string message_;
uint32_t code_;
public:
CassandraError() = default; // default constructible required by Expected
CassandraError(std::string message, uint32_t code) : message_{message}, code_{code}
{
}
template <typename T>
friend std::string
operator+(T const& lhs, CassandraError const& rhs) requires std::is_convertible_v<T, std::string>
{
return lhs + rhs.message();
}
template <typename T>
friend bool
operator==(T const& lhs, CassandraError const& rhs) requires std::is_convertible_v<T, std::string>
{
return lhs == rhs.message();
}
template <std::integral T>
friend bool
operator==(T const& lhs, CassandraError const& rhs)
{
return lhs == rhs.code();
}
friend std::ostream&
operator<<(std::ostream& os, CassandraError const& err)
{
os << err.message();
return os;
}
std::string
message() const
{
return message_;
}
uint32_t
code() const
{
return code_;
}
bool
isTimeout() const
{
if (code_ == CASS_ERROR_LIB_NO_HOSTS_AVAILABLE or code_ == CASS_ERROR_LIB_REQUEST_TIMED_OUT or
code_ == CASS_ERROR_SERVER_UNAVAILABLE or code_ == CASS_ERROR_SERVER_OVERLOADED or
code_ == CASS_ERROR_SERVER_READ_TIMEOUT)
return true;
return false;
}
bool
isInvalidQuery() const
{
return code_ == CASS_ERROR_SERVER_INVALID_QUERY;
}
};
} // namespace Backend::Cassandra