[C++][Error Code]如何定义Error Code框架 2

红太狼 2022-04-11 05:57 243阅读 0赞

相对前面一次定义的Error Code框架，这个有点类似我们平时经常用的一种方式，大致如下：  
  
  
首先把所有Error Code定义到一个文件中去，

/*************************************************************************************************/
    /*!
        \file CommonDef.h
    
        \attention
            (c) Jacky Dai. 2013~2016 
            All Rights Reserved.
    */
    /*************************************************************************************************/
    #ifndef COMMONDEF_H
    #define COMMONDEF_H
    
    /*** Defines/Macros/Constants/Typedefs ***********************************************************/
    
    //Include Head files
    //
    
    #ifdef __cplusplus
    extern "C" {
       
    #endif
    
    // Error message definition
    //
    //Basic Error Code
    #define  ERR_OK                        0x00000000           //Succeed
    #define  ERR_BASIC_BASE                0x00001000
    #define  ERR_INVALID_PARAMETER         ERR_BASIC_BASE+0x0001     //The parameter contains incorrect value, Pointer is NULL or buffer size is 0.
    #define  ERR_FILE_NOT_EXIST            ERR_BASIC_BASE+0x0002     //The assigned file does nos exist.
    #define  ERR_INVALID_FILE_PATH_NAME    ERR_BASIC_BASE+0x0003     //The path name is invalid, we cannot write package to the folder.
    
    //Catalog Error Code
    #define  ERR_CATALOG_BASE              0x00002000
    #define  ERR_CATA_DATA_TOO_MUCH        ERR_CATALOG_BASE+0x0001  // The max size of catalog is MAX_CATALOG_SIZE can be saved
    #define  ERR_CATA_DATA_IS_EMPTY        ERR_CATALOG_BASE+0x0002  // There is no catalog data
    
    
    //Key Data Error Code
    #define  ERR_KEY_DATA_BASE             0x00003000
    #define  ERR_SET_PUBLIC_KEY            ERR_KEY_DATA_BASE+0x0001  //Fail to set assigned public key data to signer.
    #define  ERR_SET_PRIVATE_KEY           ERR_KEY_DATA_BASE+0x0002  //Fail to set assigned private key data to signer.
    #define  ERR_GET_KEY_LENGTH            ERR_KEY_DATA_BASE+0x0003  //Fail to get key length through key data.
    
    //Certificate Error Code
    #define  ERR_CERTIFICATE_BASE             0x00004000
    #define  ERR_CERT_DATE_INVALID_CHARACTER  ERR_CERTIFICATE_BASE+0x0001 //Date buffer is out of range '0'~'9'.
    
    //Reserved Error Code for HSM Callbacks
    #define  ERR_HSM_BASE                   0x00008000
    #define  ERR_HSM_CONNECT                ERR_HSM_BASE+0x0001    //Fail to connect to HSM
    #define  ERR_HSM_UNKNOWN                ERR_HSM_BASE+0x0002    //Unknown Error of HSM
    
    //Reserved Error Code for key converter
    #define  ERR_KEY_CVT_BASE                0x00011000
    #define  ERR_KEY_CVT_CERTIFICATE_CONTEXT ERR_KEY_CVT_BASE+0x0001
    #define  ERR_KEY_CVT_KEY_CONTAINER       ERR_KEY_CVT_BASE+0x0002
    
    #ifdef __cplusplus
    }
    #endif
    
    #endif//COMMONDEF_H

然后解封所有ErrorCode

/**************************************************************************************************/
    /*!
        \file ErrorHelper.h
    
        \attention
            (c) Jacky Dai. 2013~2016
            All Rights Reserved.
    */
    /**************************************************************************************************/
    #ifndef ERROR_HELPER_H
    #define ERROR_HELPER_H
    
    /*** Include Files ********************************************************************************/
    #include <Windows.h>
    /*** Defines/Macros/Constants/Typedefs ************************************************************/
    
    /**************************************************************************************************/
    /*!
        \class ErrorHelper
    
        Class with commands for translating error codes to useful strings.
    
    */
    /**************************************************************************************************/
    class ErrorHelper
    {
       
    public:
        static LPCSTR getErrorName(DWORD dwErrorCode);
        static LPCSTR getErrorDescription(DWORD dwErrorCode);
    
    #ifdef _DEBUG
        static VOID getErrorTest(VOID);
    #endif
    };
    
    #endif //ERROR_HELP_H

/*** Include Files ********************************************************************************/
    #include "ErrorHelper.h"
    #include <iostream>
    #include <iomanip>
    #include "CommonDef.h"
    
    using namespace std;
    
    /*** Public Methods ******************************************************************************/
    LPCSTR ErrorHelper::getErrorName(DWORD dwErrorCode)
    {
       
        const char *result = "UNKNOWN";
    
        switch (dwErrorCode)
        {
       
        case ERR_OK: result = "ERR_OK"; break;
    
        //Basic Error Code
        case  ERR_INVALID_PARAMETER: result = "ERR_INVALID_PARAMETER"; break;
        case  ERR_FILE_NOT_EXIST: result = "ERR_FILE_NOT_EXIST"; break;
        case  ERR_INVALID_FILE_PATH_NAME: result = "ERR_INVALID_FILE_PATH_NAME"; break;
    
        //Catalog Error Code
        case  ERR_CATA_DATA_TOO_MUCH: result = "ERR_CATA_DATA_TOO_MUCH"; break;
        case  ERR_CATA_DATA_IS_EMPTY: result = "ERR_CATA_DATA_IS_EMPTY"; break;
    
        //Key Data Error Code
        case  ERR_SET_PUBLIC_KEY: result = "ERR_SET_PUBLIC_KEY"; break;
        case  ERR_SET_PRIVATE_KEY: result = "ERR_SET_PRIVATE_KEY"; break;
        case  ERR_GET_KEY_LENGTH: result = "ERR_GET_KEY_LENGTH"; break;
    
        //Certificate Error Code
        case  ERR_CERT_DATE_INVALID_CHARACTER: result = "ERR_CERT_DATE_INVALID_CHARACTER"; break;
    
        //Reserved Error Code for HSM Callbacks
        case ERR_HSM_CONNECT: result = "ERR_HSM_CONNECT"; break;
        case ERR_HSM_UNKNOWN: result = "ERR_HSM_UNKNOWN"; break;
    
        default: break;
        }
    
        return result;
    }
    
    LPCSTR ErrorHelper::getErrorDescription(DWORD dwErrorCode)
    {
       
        const char *result = "UNKNOWN";
    
        switch (dwErrorCode)
        {
       
        case ERR_OK: result = "No error."; break;
    
        //Basic Error Code
        case ERR_INVALID_PARAMETER: result = "The parameter contains incorrect value, Pointer is NULL or buffer size is 0."; break;
        case ERR_FILE_NOT_EXIST: result = "The assigned file does nos exist."; break;
        case ERR_INVALID_FILE_PATH_NAME: result = "The path name is invalid, we cannot write package to the folder."; break;
    
        //Catalog Error Code
        case  ERR_CATA_DATA_TOO_MUCH: result = "The max size of catalog is MAX_CATALOG_SIZE can be saved."; break;
        case  ERR_CATA_DATA_IS_EMPTY: result = "There is no catalog data."; break;
    
        //Key Data Error Code
        case  ERR_SET_PUBLIC_KEY: result = "Fail to set assigned public key data to signer."; break;
        case  ERR_SET_PRIVATE_KEY: result = "Fail to set assigned private key data to signer."; break;
        case  ERR_GET_KEY_LENGTH: result = "Fail to get key length through key data."; break;
    
        //Certificate Error Code
        case  ERR_CERT_DATE_INVALID_CHARACTER: result = "Date buffer is out of range '0'~'9'."; break;
    
        //Reserved Error Code for HSM Callbacks
        case ERR_HSM_CONNECT: result = "Fail to connect to HSM."; break;
        case ERR_HSM_UNKNOWN: result = "Unknown Error of HSM."; break;
    
        default: break;
        }
    
        return result;
    }
    
    #ifdef _DEBUG
    
    VOID ErrorHelper::getErrorTest(VOID)
    {
       
        DWORD dwErrCode = ERR_OK;
        cout << "ErrorCode = 0x" << setw(8) << setfill('0') << hex << dwErrCode << endl;
        cout << ErrorHelper::getErrorName(dwErrCode) << endl;
        cout << ErrorHelper::getErrorDescription(dwErrCode) << endl;
        cout << endl;
        system("PAUSE");
    
        //Basic Error Code
        dwErrCode = ERR_BASIC_BASE;
        for (DWORD i = dwErrCode+1; i<=ERR_PACKING_FOLDER_NOT_EXIST; i++ )
        {
       
            cout << "ErrorCode = 0x" << setw(8) << setfill('0') << hex << i << endl;
            cout << ErrorHelper::getErrorName(i) << endl;
            cout << ErrorHelper::getErrorDescription(i) << endl;
            cout << endl;
        }
        system("PAUSE");
    
        //Catalog Error Code
        dwErrCode = ERR_CATALOG_BASE;
        for (DWORD i = dwErrCode+1; i<=ERR_CATA_INVALID_DATA_FILE; i++ )
        {
       
            cout << "ErrorCode = 0x" << setw(8) << setfill('0') << hex << i << endl;
            cout << ErrorHelper::getErrorName(i) << endl;
            cout << ErrorHelper::getErrorDescription(i) << endl;
            cout << endl;
        }
        system("PAUSE");
    
        //Key Data Error Code
        dwErrCode = ERR_KEY_DATA_BASE;
        for (DWORD i = dwErrCode+1; i<=ERR_INVALID_PRV_KEY_SIZE; i++ )
        {
       
            cout << "ErrorCode = 0x" << setw(8) << setfill('0') << hex << i << endl;
            cout << ErrorHelper::getErrorName(i) << endl;
            cout << ErrorHelper::getErrorDescription(i) << endl;
            cout << endl;
        }
        system("PAUSE");
    
        //Certificate Error Code
        dwErrCode = ERR_CERTIFICATE_BASE;
        for (DWORD i = dwErrCode+1; i<=ERR_CERT_DATE_EXPIRED_VS_EFFECTIVE; i++ )
        {
       
            cout << "ErrorCode = 0x" << setw(8) << setfill('0') << hex << i << endl;
            cout << ErrorHelper::getErrorName(i) << endl;
            cout << ErrorHelper::getErrorDescription(i) << endl;
            cout << endl;
        }
        system("PAUSE");
    
        //Reserved Error Code for HSM Callbacks
        dwErrCode = ERR_HSM_BASE;
        for (DWORD i = dwErrCode+1; i<=ERR_HSM_UNKNOWN; i++ )
        {
       
            cout << "ErrorCode = 0x" << setw(8) << setfill('0') << hex << i << endl;
            cout << ErrorHelper::getErrorName(i) << endl;
            cout << ErrorHelper::getErrorDescription(i) << endl;
            cout << endl;
        }
        system("PAUSE");
    }
    #endif