参数传递封装类KBundle

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最近看了Android源码之后，里面有一个用于参数传递的类Bundle，于是自己写了一个简单的KBundle用于在C++下传递多个参数。
以下是源代码：
#include <map>#include <atlstr.h>#include <Windows.h>class KBundle{public:    enum _ENUM_DATA_TYPE    {        enumDataType_none,        enumDataType_int,        enumDataType_long,        enumDataType_byte,        enumDataType_double,        enumDataType_char,        enumDataType_wstring,        enumDataType_int64,    };    typedef struct _BUNDLE_DATA    {        _ENUM_DATA_TYPE     enType;        union        {            byte            bItem;            char            cItem;            int             nItem;            long            lItem;  ///>__time32_t            float           fItem;            double          dItem;            wchar_t*        pWItem;            __int64         _n64Item;   ///>__time64_t        };    }BUNDLE_DATA;       typedef std::map<CStringW, BUNDLE_DATA>         DATA_MAP;public:    KBundle()    {    }    ~KBundle()    {    }public:    KBundle(const KBundle& _kb)    {        this->m_mapData = _kb.m_mapData;        _CopyWString(_kb);    }    KBundle& operator=(const KBundle& _kb)    {        if (this == &_kb)        {            return *this;        }        this->m_mapData = _kb.m_mapData;        _CopyWString(_kb);        return *this;    }public:    void PutItem(LPCWSTR lpstrKey, int nValue)    {        BUNDLE_DATA bd = {enumDataType_int};                bd.nItem = nValue;        _Remove(bd.enType, lpstrKey);        m_mapData.insert(std::make_pair(lpstrKey, bd));    }    void PutItem(LPCWSTR lpstrKey, byte bValue)    {        BUNDLE_DATA bd = {enumDataType_byte};        bd.bItem = bValue;        _Remove(bd.enType, lpstrKey);        m_mapData.insert(std::make_pair(lpstrKey, bd));    }    void PutItem(LPCWSTR lpstrKey, char cValue)    {        BUNDLE_DATA bd = {enumDataType_char};        bd.cItem = cValue;        _Remove(bd.enType, lpstrKey);        m_mapData.insert(std::make_pair(lpstrKey, bd));    }    void PutItem(LPCWSTR lpstrKey, double dValue)    {        BUNDLE_DATA bd = {enumDataType_double};        bd.dItem = dValue;        _Remove(bd.enType, lpstrKey);        m_mapData.insert(std::make_pair(lpstrKey, bd));    }    void PutItem(LPCWSTR lpstrKey, long lValue)    {        BUNDLE_DATA bd = {enumDataType_long};        bd.lItem = lValue;        _Remove(bd.enType, lpstrKey);        m_mapData.insert(std::make_pair(lpstrKey, bd));    }    void PutItem(LPCWSTR lpstrKey, __int64 _n64Value)    {        BUNDLE_DATA bd = {enumDataType_int64};        bd._n64Item = _n64Value;        _Remove(bd.enType, lpstrKey);                m_mapData.insert(std::make_pair(lpstrKey, bd));    }    void PutItem(LPCWSTR lpstrKey, LPCWSTR lpstrValue)    {        BUNDLE_DATA bd = {enumDataType_wstring};        size_t nLength = wcslen(lpstrValue) + 1;        bd.pWItem = new wchar_t[nLength];        if (bd.pWItem != NULL)        {            StrCpyW(bd.pWItem, lpstrValue);            _Remove(bd.enType, lpstrKey);            m_mapData.insert(std::make_pair(lpstrKey, bd));        }    }    int GetInt(LPCWSTR lpstrKey, int nDefault = 0)    {        BUNDLE_DATA bd = {enumDataType_int};                bd.nItem = nDefault;        _GetValue(bd.enType, lpstrKey, bd);        return bd.nItem;    }    long GetLong(LPCWSTR lpstrKey, long lDefault = 0l)    {        BUNDLE_DATA bd = {enumDataType_long};        bd.lItem = lDefault;        _GetValue(bd.enType, lpstrKey, bd);        return bd.lItem;    }    byte GetByte(LPCWSTR lpstrKey, byte bDefault = 0)    {        BUNDLE_DATA bd = {enumDataType_byte};        bd.bItem = bDefault;        _GetValue(bd.enType, lpstrKey, bd);        return bd.bItem;    }    double GetDouble(LPCWSTR lpstrKey, double dDefault = 0.0)     {        BUNDLE_DATA bd = {enumDataType_double};        bd.dItem = dDefault;        _GetValue(bd.enType, lpstrKey, bd);        return bd.dItem;    }    char GetChar(LPCWSTR lpstrKey, char cDefault = '\0')    {        BUNDLE_DATA bd = {enumDataType_char};        bd.cItem = cDefault;        _GetValue(bd.enType, lpstrKey, bd);        return bd.cItem;    }    LPCWSTR GetStringW(LPCWSTR lpstrKey, LPWSTR lpstrDefault = NULL)    {        BUNDLE_DATA bd = {enumDataType_wstring};        bd.pWItem = lpstrDefault;        _GetValue(bd.enType, lpstrKey, bd);        return bd.pWItem;    }    __int64 GetInt64(LPCWSTR lpstrKey, __int64 n64Default = 0i64)    {        BUNDLE_DATA bd = {enumDataType_int64};        bd._n64Item = n64Default;        _GetValue(bd.enType, lpstrKey, bd);        return bd._n64Item;    }    size_t GetSize() const    {        return m_mapData.size();    }    BOOL IsEmpty() const    {        return m_mapData.empty();    }    BOOL IsContainsKey(LPCWSTR lpstrKey) const    {        return m_mapData.find(lpstrKey) != m_mapData.end();    }    void RemoveKey(LPCWSTR lpstrKey)    {        DATA_MAP::iterator iterDele = m_mapData.find(lpstrKey);                if (iterDele != m_mapData.end())        {            if (iterDele->second.enType == enumDataType_wstring &&                iterDele->second.pWItem != NULL)            {                delete[] iterDele->second.pWItem;                iterDele->second.pWItem = NULL;            }            m_mapData.erase(iterDele);        }    }    void Clear()    {        DATA_MAP::iterator iterDele = m_mapData.begin();        for (; iterDele != m_mapData.end(); ++iterDele)        {            if (iterDele->second.enType == enumDataType_wstring &&                iterDele->second.pWItem != NULL)            {                delete[] iterDele->second.pWItem;                iterDele->second.pWItem = NULL;            }        }        m_mapData.clear();    }private:    void _Remove(int nType, LPCWSTR lpstrKey)    {        DATA_MAP::iterator iterDele = m_mapData.find(lpstrKey);        if (iterDele == m_mapData.end())        {            goto Exit0;        }                switch (nType)        {        case enumDataType_int:        case enumDataType_long:        case enumDataType_byte:        case enumDataType_double:        case enumDataType_char:        case enumDataType_int64:            break;        case enumDataType_wstring:            if (iterDele->second.pWItem != NULL &&                iterDele->second.enType == enumDataType_wstring)            {                delete[] iterDele->second.pWItem;                iterDele->second.pWItem = NULL;            }            break;        default:            break;        }        m_mapData.erase(iterDele);Exit0:        return;    }    BOOL _GetValue(int nType, LPCWSTR lpstrKey, BUNDLE_DATA& bd)    {        BOOL bRet = FALSE;        DATA_MAP::const_iterator iterFind = m_mapData.find(lpstrKey);        if (iterFind == m_mapData.end())        {            goto Exit0;        }        switch (nType)        {        case enumDataType_int:            bd.nItem = iterFind->second.nItem;            break;        case enumDataType_long:            bd.lItem = iterFind->second.lItem;            break;        case enumDataType_byte:            bd.bItem = iterFind->second.bItem;            break;        case enumDataType_double:            bd.dItem = iterFind->second.dItem;            break;        case enumDataType_char:            bd.cItem = iterFind->second.cItem;            break;        case enumDataType_int64:            bd._n64Item = iterFind->second._n64Item;            break;        case enumDataType_wstring:            bd.pWItem = iterFind->second.pWItem;            break;                    default:            break;        }        bRet = TRUE;Exit0:        return bRet;    }    ///>深拷贝    void _CopyWString(const KBundle& _kb)    {        DATA_MAP::iterator iterDele = m_mapData.begin();        for (; iterDele != m_mapData.end(); ++iterDele)        {            if (iterDele->second.enType != enumDataType_wstring)            {                continue;            }            if (iterDele->second.pWItem == NULL)            {                continue;            }            LPCWSTR lpstrTemp = iterDele->second.pWItem;                        iterDele->second.pWItem = NULL;            iterDele->second.pWItem = new wchar_t[wcslen(lpstrTemp) + 1];            if (iterDele->second.pWItem != NULL)            {                StrCpyW(iterDele->second.pWItem, lpstrTemp);            }        }    }public:    DATA_MAP            m_mapData;          ///>Item_Map};
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