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/*
* 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.
*/
#ifndef _THRIFT_TRANSPORT_TTRANSPORTEXCEPTION_H_
#define _THRIFT_TRANSPORT_TTRANSPORTEXCEPTION_H_ 1
#include <string>
#include <thrift/numeric_cast.h>
#include <thrift/Thrift.h>
namespace apache {
namespace thrift {
namespace transport {
/**
* Class to encapsulate all the possible types of transport errors that may
* occur in various transport systems. This provides a sort of generic
* wrapper around the vague UNIX E_ error codes that lets a common code
* base of error handling to be used for various types of transports, i.e.
* pipes etc.
*
*/
class TTransportException : public apache::thrift::TException {
public:
/**
* Error codes for the various types of exceptions.
*/
enum TTransportExceptionType {
UNKNOWN = 0,
NOT_OPEN = 1,
TIMED_OUT = 2,
END_OF_FILE = 3,
INTERRUPTED = 4,
BAD_ARGS = 5,
CORRUPTED_DATA = 6,
INTERNAL_ERROR = 7,
CLIENT_DISCONNECT = 8
};
TTransportException() : apache::thrift::TException(), type_(UNKNOWN) {}
TTransportException(TTransportExceptionType type) : apache::thrift::TException(), type_(type) {}
TTransportException(const std::string& message)
: apache::thrift::TException(message), type_(UNKNOWN) {}
TTransportException(TTransportExceptionType type, const std::string& message)
: apache::thrift::TException(message), type_(type) {}
TTransportException(TTransportExceptionType type, const std::string& message, int errno_copy)
: apache::thrift::TException(message + ": " + TOutput::strerror_s(errno_copy)), type_(type) {}
~TTransportException() noexcept override = default;
/**
* Returns an error code that provides information about the type of error
* that has occurred.
*
* @return Error code
*/
TTransportExceptionType getType() const noexcept { return type_; }
const char* what() const noexcept override;
protected:
/** Just like strerror_r but returns a C++ string object. */
std::string strerror_s(int errno_copy);
/** Error code */
TTransportExceptionType type_;
};
/**
* Legacy code in transport implementations have overflow issues
* that need to be enforced.
*/
template <typename To, typename From> To safe_numeric_cast(From i) {
try {
return apache::thrift::numeric_cast<To>(i);
}
catch (const std::bad_cast& bc) {
throw TTransportException(TTransportException::CORRUPTED_DATA,
bc.what());
}
}
}
}
} // apache::thrift::transport
#endif // #ifndef _THRIFT_TRANSPORT_TTRANSPORTEXCEPTION_H_
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