oraerror.h

在动态库中实现异步导出大数据量的oracle数据

#ifndef __ORAERROR_H_
#define __ORAERROR_H_

#include "ocicpp.h"
#include <exception>

namespace OCICPP {

using std::string;

class OraError: public std::exception {
private:
	ErrorType mv_errtype;	
	sword status;
	sb4 errcode;
	OCIError *errhp;
public: 
	string message;

public:

	OraError(OCIError *err,sword stat): mv_errtype(ORAERROR),status(stat),errcode(-1),errhp(err),message ("OCICPP Lib Exception: ") {
		text *error;
		error=(text *)calloc(512,sizeof(text));
		(void) OCIErrorGet((dvoid *)errhp, (ub4) 1, (text *) NULL, &errcode, error, 512, OCI_HTYPE_ERROR);
		error[511]='\0';
		message += (char *)error;
		free(error);
	}	
	
	OraError(const string &mess,ErrorType t): mv_errtype(t),status(0),errcode(-1),errhp(0),message(mess) {	}
	
	OraError(int err): mv_errtype(OCICPPERROR),status(0),errcode(-1),errhp(0),message("") {
		if(err==CELL_NULL) {
			message="OCICPP Error: Requested cell is null";
		} else if(err==CELL_NOT_EXISTS) {
			message="OCICPP Error: Requested cell is not exists";
		} else if(err==CELL_TYPE_UNSUPPORTED) {
			message="OCICPP Error: Requested cell is of unknown type";
		} else {
			message="OCICPP Error: unknown error";
		}
	}
		
	virtual ~OraError() throw() {
	  // intentionally left blank
	}

	ErrorType errtype () const throw ();
	virtual const char* what () const throw ();
};

} 
#endif