rocksdb/thrift/lib/cpp/protocol/TProtocolException.h
Dhruba Borthakur 80c663882a Create leveldb server via Thrift.
Summary:
First draft.
Unit tests pass.

Test Plan: unit tests attached

Reviewers: heyongqiang

Reviewed By: heyongqiang

Differential Revision: https://reviews.facebook.net/D3969
2012-07-07 09:42:39 -07:00

105 lines
3.1 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.
*/
#ifndef _THRIFT_PROTOCOL_TPROTOCOLEXCEPTION_H_
#define _THRIFT_PROTOCOL_TPROTOCOLEXCEPTION_H_ 1
#include <string>
namespace apache { namespace thrift { namespace protocol {
/**
* Class to encapsulate all the possible types of protocol errors that may
* occur in various protocol systems. This provides a sort of generic
* wrapper around the shitty UNIX E_ error codes that lets a common code
* base of error handling to be used for various types of protocols, i.e.
* pipes etc.
*
*/
class TProtocolException : public apache::thrift::TLibraryException {
public:
/**
* Error codes for the various types of exceptions.
*/
enum TProtocolExceptionType
{ UNKNOWN = 0
, INVALID_DATA = 1
, NEGATIVE_SIZE = 2
, SIZE_LIMIT = 3
, BAD_VERSION = 4
, NOT_IMPLEMENTED = 5
};
TProtocolException() :
apache::thrift::TLibraryException(),
type_(UNKNOWN) {}
TProtocolException(TProtocolExceptionType type) :
apache::thrift::TLibraryException(),
type_(type) {}
TProtocolException(const std::string& message) :
apache::thrift::TLibraryException(message),
type_(UNKNOWN) {}
TProtocolException(TProtocolExceptionType type, const std::string& message) :
apache::thrift::TLibraryException(message),
type_(type) {}
virtual ~TProtocolException() throw() {}
/**
* Returns an error code that provides information about the type of error
* that has occurred.
*
* @return Error code
*/
TProtocolExceptionType getType() {
return type_;
}
virtual const char* what() const throw() {
if (message_.empty()) {
switch (type_) {
case UNKNOWN : return "TProtocolException: Unknown protocol exception";
case INVALID_DATA : return "TProtocolException: Invalid data";
case NEGATIVE_SIZE : return "TProtocolException: Negative size";
case SIZE_LIMIT : return "TProtocolException: Exceeded size limit";
case BAD_VERSION : return "TProtocolException: Invalid version";
case NOT_IMPLEMENTED : return "TProtocolException: Not implemented";
default : return "TProtocolException: (Invalid exception type)";
}
} else {
return message_.c_str();
}
}
protected:
/**
* Error code
*/
TProtocolExceptionType type_;
};
}}} // apache::thrift::protocol
#endif // #ifndef _THRIFT_PROTOCOL_TPROTOCOLEXCEPTION_H_