src/base/utility/FBaseUtil_IcuConverter.cpp

   1 //
   2 // Open Service Platform
   3 // Copyright (c) 2012 Samsung Electronics Co., Ltd.
   4 //
   5 // Licensed under the Apache License, Version 2.0 (the License);
   6 // you may not use this file except in compliance with the License.
   7 // You may obtain a copy of the License at
   8 //
   9 // http://www.apache.org/licenses/LICENSE-2.0
  10 //
  11 // Unless required by applicable law or agreed to in writing, software
  12 // distributed under the License is distributed on an "AS IS" BASIS,
  13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 // See the License for the specific language governing permissions and
  15 // limitations under the License.
  16 //
  17
  18 /**
  19  * @File        :       FBaseUtil_ICUConverter.cpp
  20  * @brief       :   Implementation for _ICUConverter Class
  21  */
  22 // Includes
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <wchar.h>
  26 #include <string.h>
  27 #include <new>
  28 #include <unique_ptr.h>
  29 #include <unicode/ustring.h>
  30 #include <FBaseResult.h>
  31 #include "FBase_StringConverter.h"
  32 #include "FBase_NativeError.h"
  33 #include <FBaseSysLog.h>
  34 #include "FBaseUtil_IcuConverter.h"
  35
  36
  37 namespace Tizen { namespace Base { namespace Utility
  38 {
  39 _ICUConverter::_ICUConverter(void)
  40               :__pConverter(null)
  41 {
  42
  43 }
  44 _ICUConverter::~_ICUConverter(void)
  45 {
  46         if (__pConverter)
  47         {
  48                 ucnv_close(__pConverter);
  49                 __pConverter = null;
  50         }
  51 }
  52
  53 bool
  54 _ICUConverter::OpenConverter(const Tizen::Base::String& encodingScheme)
  55 {
  56         std::unique_ptr< char[] > pConverterName(_StringConverter::CopyToCharArrayN(encodingScheme));
  57         SysTryReturn(NID_BASE_UTIL, pConverterName != null, false, E_INVALID_ARG, "[%s] Invalid coding scheme.", GetErrorMessage(E_INVALID_ARG));
  58         UErrorCode err = U_ZERO_ERROR;
  59
  60         if (!encodingScheme.CompareTo("UCS-2"))
  61         {
  62                 __pConverter = ucnv_open("UTF-16LE", &err);
  63         }
  64         else
  65         {
  66                 __pConverter = ucnv_open(pConverterName.get(), &err);
  67         }
  68
  69         result r = GetResultFromIcuErrorCode(err);
  70         SysTryReturn(NID_BASE_UTIL, r == E_SUCCESS, false, r, "[%s] The err must be U_ZERO_ERROR.", GetErrorMessage(r));
  71
  72         SetLastResult(E_SUCCESS);
  73         return true;
  74 }
  75
  76 void
  77 _ICUConverter::CloseConverter(void)
  78 {
  79         if (__pConverter)
  80         {
  81                 ucnv_close(__pConverter);
  82                 __pConverter = null;
  83         }
  84 }
  85
  86 char*
  87 _ICUConverter::ConvertFromUcharN(const wchar_t* pSrc, int srcLength, int& retLength)
  88 {
  89         UErrorCode errorCode = U_ZERO_ERROR;
  90         result r = E_SUCCESS;
  91         char* pOutBuf = null;
  92         ucnv_setFromUCallBack(__pConverter, UCNV_FROM_U_CALLBACK_STOP, null, null, null, &errorCode);
  93
  94         int outLen = 0;
  95         int icuStrLen = srcLength * 2;
  96         UChar* pIcuStr = new (std::nothrow) UChar[icuStrLen];
  97         SysTryReturn(NID_BASE_UTIL, pIcuStr != null, null, E_OUT_OF_MEMORY, "[%s] Memory allocation failed.", GetErrorMessage(E_OUT_OF_MEMORY));
  98         UChar* pResultStr = u_strFromWCS(pIcuStr, icuStrLen, &outLen, pSrc, srcLength, &errorCode);
  99         if (U_SUCCESS(errorCode))
 100         {
 101                 char* pTmpOut = null;
 102                 int outBytesLeftOut = srcLength * 4;
 103                 pOutBuf = new (std::nothrow) char[outBytesLeftOut + 1];
 104                 SysTryCatch(NID_BASE_UTIL, pOutBuf != null, r = E_OUT_OF_MEMORY, E_OUT_OF_MEMORY, "[%s] Memory allocation failed.", GetErrorMessage(E_OUT_OF_MEMORY));
 105
 106                 pTmpOut = pOutBuf;
 107                 memset(pOutBuf, 0, (outBytesLeftOut + 1));
 108                 retLength = ucnv_fromUChars(__pConverter, pTmpOut, outBytesLeftOut, pResultStr, outLen, &errorCode);
 109                 r = GetResultFromIcuErrorCode(errorCode);
 110                 if (IsFailed(r))
 111                 {
 112                         delete[] pOutBuf;
 113                         pOutBuf = null;
 114                 }
 115         }
 116
 117 CATCH:
 118         delete[] pIcuStr;
 119         pIcuStr = null;
 120         SetLastResult(r);
 121         return pOutBuf;
 122 }
 123
 124 wchar_t*
 125 _ICUConverter::ConvertToUcharN(const char* src, int srcLength)
 126 {
 127         UErrorCode errorCode = U_ZERO_ERROR;
 128         ucnv_setToUCallBack(__pConverter, UCNV_TO_U_CALLBACK_STOP, null, null, null, &errorCode);
 129         wchar_t* pDst = null;
 130         wchar_t* pResultStr = null;
 131         const char* pTmpIn = src;
 132         int icuStrLen = (srcLength + 1);
 133         UChar* pIcuStr = new (std::nothrow) UChar[icuStrLen];
 134         SysTryReturn(NID_BASE_UTIL, pIcuStr != null, null, E_OUT_OF_MEMORY, "[%s] Memory allocation failed.", GetErrorMessage(E_OUT_OF_MEMORY));
 135         memset(pIcuStr, 0, sizeof(UChar) * (icuStrLen));
 136
 137         signed int retLength = ucnv_toUChars(__pConverter, pIcuStr, icuStrLen, pTmpIn, srcLength, &errorCode);
 138         result r = GetResultFromIcuErrorCode(errorCode);
 139         if (U_SUCCESS(errorCode))
 140         {
 141                 pDst = new (std::nothrow) wchar_t[retLength + 1];
 142                 SysTryCatch(NID_BASE_UTIL, pDst != null, , E_OUT_OF_MEMORY, "[%s] Memory allocation failed.", GetErrorMessage(E_OUT_OF_MEMORY));
 143                 memset(pDst, 0, sizeof(wchar_t) * (retLength + 1));
 144                 pResultStr = u_strToWCS(pDst, retLength, &retLength, pIcuStr, retLength, &errorCode);
 145                 r = GetResultFromIcuErrorCode(errorCode);
 146                 if (IsFailed(r))
 147                 {
 148                         delete[] pDst;
 149                         pDst = null;
 150                 }
 151         }
 152
 153 CATCH:
 154         SetLastResult(r);
 155         delete[] pIcuStr;
 156         pIcuStr = null;
 157         return pResultStr;
 158 }
 159
 160 result
 161 _ICUConverter::GetResultFromIcuErrorCode(UErrorCode& err)
 162 {
 163         if (U_FAILURE(err))
 164         {
 165                 switch (err)
 166                 {
 167                         case U_ZERO_ERROR:
 168                                 return E_SUCCESS;
 169                         case U_MEMORY_ALLOCATION_ERROR:
 170                                 return E_OUT_OF_MEMORY;
 171
 172                         case U_INDEX_OUTOFBOUNDS_ERROR:
 173                                 return E_INVALID_ARG;
 174
 175                         case U_TRUNCATED_CHAR_FOUND:
 176                         // fall through to U_INVALID_CHAR_FOUND
 177                         case U_INVALID_CHAR_FOUND:
 178                         // fall through to U_ILLEGAL_CHAR_FOUND
 179                         case U_ILLEGAL_CHAR_FOUND:
 180                                 return E_INVALID_ENCODING_RANGE;
 181
 182                         case U_INVALID_TABLE_FORMAT:
 183                                 return E_SYSTEM;
 184
 185                         case U_BUFFER_OVERFLOW_ERROR:
 186                                 return E_OVERFLOW;
 187
 188                         case U_STRING_NOT_TERMINATED_WARNING:
 189                                 return E_INVALID_ARG;
 190
 191                         case U_ILLEGAL_ARGUMENT_ERROR:
 192                                 return E_INVALID_ARG;
 193
 194                         case U_FILE_ACCESS_ERROR:
 195                         case U_AMBIGUOUS_ALIAS_WARNING:
 196                                 return E_UNSUPPORTED_TYPE;
 197
 198                         default:
 199                                 return E_SYSTEM;
 200                 }
 201         }
 202         return E_SUCCESS;
 203 }
 204
 205 char*
 206 ConvertWcsToMbsN(const wchar_t* pValue)
 207 {
 208         SysTryReturn(NID_BASE_UTIL, pValue != null, null, E_INVALID_ARG, "[%s] Invalid argument is used. The pValue is null.", GetErrorMessage(E_INVALID_ARG));
 209
 210         int len = wcslen(pValue);
 211         if (len == 0)
 212         {
 213                 char* pRet = new (std::nothrow) char[1];
 214                 SysTryReturn(NID_BASE_UTIL, pRet != null, null, E_OUT_OF_MEMORY, "[%s] Memory allocation failed.", GetErrorMessage(E_OUT_OF_MEMORY));
 215                 pRet[0] = '\0';
 216                 return pRet;
 217         }
 218
 219         UErrorCode err = U_ZERO_ERROR;
 220         UConverter* pConverter = ucnv_open("UTF-8", &err);
 221
 222         SysTryReturn(NID_BASE_UTIL, err == U_ZERO_ERROR, null, E_INVALID_ARG, "[%s] ucnv_open() failed. The err must be U_ZERO_ERROR.", GetErrorMessage(E_INVALID_ARG));
 223
 224         ucnv_setFromUCallBack(pConverter, UCNV_FROM_U_CALLBACK_STOP, null, null, null, &err);
 225
 226         int icuStrLen = len * 2;
 227         UChar* pIcuStr = new (std::nothrow) UChar[icuStrLen];
 228         SysTryReturn(NID_BASE_UTIL, pIcuStr != null, null, E_OUT_OF_MEMORY, "[%s] Memory allocation failed.", GetErrorMessage(E_OUT_OF_MEMORY));
 229
 230         int outLen = 0;
 231         UChar* pResultStr = u_strFromWCS(pIcuStr, icuStrLen, &outLen, pValue, len, &err);
 232
 233         char* pOutBuf = null;
 234         if (U_SUCCESS(err))
 235         {
 236                 char* pTmpOut = null;
 237                 int outBytesLeftOut = len * 4;
 238                 pOutBuf = new (std::nothrow) char[outBytesLeftOut + 1];
 239                 SysTryCatch(NID_BASE_UTIL, pOutBuf != null, , E_OUT_OF_MEMORY, "[%s] Memory allocation failed.", GetErrorMessage(E_OUT_OF_MEMORY));
 240
 241                 pTmpOut = pOutBuf;
 242                 memset(pOutBuf, 0, outBytesLeftOut + 1);
 243                 int retLength = ucnv_fromUChars(pConverter, pTmpOut, outBytesLeftOut, pResultStr, outLen, &err);
 244
 245                 if (U_FAILURE(err))
 246                 {
 247                         SysLogException(NID_BASE_UTIL, E_INVALID_ARG, "[%s] ucnv_fromUChars() failed. pTmpOut is %s.", GetErrorMessage(E_INVALID_ARG), pTmpOut);
 248                         delete[] pOutBuf;
 249                         pOutBuf = null;
 250                 }
 251         }
 252         else
 253         {
 254                 SysLogException(NID_BASE_UTIL, E_INVALID_ARG, "[%s] u_strFromWCS() failed. pValue is %ls.", GetErrorMessage(E_INVALID_ARG), pValue);
 255         }
 256
 257 CATCH:
 258         if (pConverter)
 259         {
 260                 ucnv_close(pConverter);
 261                 pConverter = null;
 262         }
 263         delete[] pIcuStr;
 264         pIcuStr = null;
 265         return pOutBuf;
 266 }
 267 } } } // Tizen::Base::Utilityy