ClickHouse/dbms/include/DB/Functions/Conditional/CondException.h

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2016-05-03 23:19:14 +00:00
#pragma once
#include <DB/Common/Exception.h>
namespace DB
{
namespace Conditional
{
enum class CondErrorCodes
{
TYPE_DEDUCER_ILLEGAL_COLUMN_TYPE,
TYPE_DEDUCER_UPSCALING_ERROR,
NUMERIC_PERFORMER_ILLEGAL_COLUMN,
COND_SOURCE_ILLEGAL_COLUMN,
NUMERIC_EVALUATOR_ILLEGAL_ARGUMENT,
ARRAY_EVALUATOR_INVALID_TYPES
};
/// Since the building blocks of the multiIf function may be called
/// in various contexts, their error management must be achieved in
/// a context-free manner. Hence the need for the following class.
class CondException : public DB::Exception
{
public:
CondException(CondErrorCodes code_, const std::string & msg1_ = "", const std::string & msg2_ = "")
: code{code_}, msg1{msg1_}, msg2{msg2_}
{
}
const char * name() const throw() override { return "DB::Conditional::Exception"; }
const char * className() const throw() override { return "DB::Conditional::Exception"; }
CondException * clone() const override { return new CondException{*this}; }
void rethrow() const override { throw *this; }
CondErrorCodes getCode() const { return code; }
std::string getMsg1() const { return msg1; }
std::string getMsg2() const { return msg2; }
private:
CondErrorCodes code;
std::string msg1;
std::string msg2;
};
}
}