String XercesParser::transcodeXmlCharToString(const XMLCh* const xmlch_str, unsigned int inputLength)
    {
        XERCES_CPP_NAMESPACE_USE;

        XMLTransService::Codes  res;
        XMLTranscoder* transcoder = XMLPlatformUtils::fgTransService->makeNewTranscoderFor(XMLRecognizer::UTF_8, res, 4096, XMLPlatformUtils::fgMemoryManager );

        if (res == XMLTransService::Ok)
        {
            String out;
#if _XERCES_VERSION >= 30000
            XMLByte outBuff[128];
            XMLSize_t outputLength;
            XMLSize_t eaten = 0;
            XMLSize_t offset = 0;
#else /* _XERCES_VERSION >= 30000 */
            utf8 outBuff[128];
            unsigned int outputLength;
            unsigned int eaten = 0;
            unsigned int offset = 0;
#endif /* _XERCES_VERSION >= 30000 */
//            unsigned int inputLength = XMLString::stringLen(xmlch_str); // dalfy caracters node need to transcode but give the size 

            while (inputLength)
            {
                outputLength = transcoder->transcodeTo(xmlch_str + offset, inputLength, outBuff, 128, eaten, XMLTranscoder::UnRep_RepChar);
                out.append(outBuff, outputLength);
                offset += eaten;
                inputLength -= eaten;
            }

            delete transcoder;

            return out;
        }
        else
        {
            throw GenericException("XercesParser::transcodeXmlCharToString - Internal Error: Could not create UTF-8 string transcoder.");
        }

    }
LIBSBML_CPP_NAMESPACE_BEGIN

/** @endcond */


/** @cond doxygenLibsbmlInternal */

/**
 * convert the given internal XMLCh* string to the UTF-8 char* string.
 */
char* 
XercesTranscode::transcodeToUTF8(const XMLCh* src_str)
{
  if ( src_str == NULL )
  {
    char* str = new char[1];
    str[0] = '\0';
    return str;
  }

  const XercesSize_t block_size = 8192;
  XMLTransService::Codes res_value;
  XMLTranscoder* transcoder = XMLPlatformUtils::fgTransService->makeNewTranscoderFor(
                                XMLRecognizer::UTF_8, res_value, block_size);

  if ( transcoder == NULL )
  {
    // this should not happen
    return xercesc::XMLString::transcode(src_str);
  }

  const XMLCh* cur_srcptr= src_str;
  XercesSize_t src_size  = XMLString::stringLen(src_str);
  XercesSize_t read_size = 0;
  XercesSize_t dst_size  = 0;
  char* utf8_str         = new char[1];

  utf8_str[0] = '\0';

  while ( read_size < src_size )
  {
    XMLByte* buf_tofill      = new XMLByte[block_size+4];
    XercesSize_t rest_size   = src_size - read_size;
    XercesSize_t tmpbuf_size = (rest_size > block_size) ? block_size : rest_size;

    XercesSize_t numchars_eaten = 0; 
    XercesSize_t numchars_dst   = 0;

    //
    // converts from the internal XMLCh* encoding to the UTF-8 encoding.
    //
    //  XMLTranscoder::UnRep_Throw   : Throw an exception.
    //  XMLTranscoder::UnRep_RepChar : Use the replacement char.
    //
    numchars_dst = transcoder->transcodeTo(cur_srcptr, tmpbuf_size, buf_tofill, block_size, 
                                           numchars_eaten, XMLTranscoder::UnRep_RepChar);

    if (numchars_dst <= block_size)
    {
      for(int i=0; i < 4; i++)
      {
        buf_tofill[numchars_dst+i] = 0;
      }
    }

    cur_srcptr += numchars_eaten;
    read_size  += numchars_eaten;
    dst_size   += numchars_dst;

    char* new_str = new char[dst_size+1]; 
    XMLString::copyString(new_str, utf8_str);
    XMLString::catString(new_str, reinterpret_cast<char*>(buf_tofill) );

    delete [] utf8_str;
    delete [] buf_tofill;

    utf8_str = new_str;
  }

  delete transcoder; 

  return utf8_str;
}
XERCES_CPP_NAMESPACE_BEGIN


UnixHTTPURLInputStream::UnixHTTPURLInputStream(const XMLURL& urlSource, const XMLNetHTTPInfo* httpInfo/*=0*/)
      : fSocket(0)
      , fBytesProcessed(0)
      , fMemoryManager(urlSource.getMemoryManager())
{

    //
    //  Constants in ASCII to send/check in the HTTP request/response
    //

    const char GET[] =
    {
        chLatin_G, chLatin_E, chLatin_T, chSpace, chNull
    };

    const char PUT[] =
    {
        chLatin_P, chLatin_U, chLatin_T, chSpace, chNull
    };

    const char POST[] =
    {
        chLatin_P, chLatin_O, chLatin_S, chLatin_T, chSpace, chNull
    };

    const char HTTP[] =
    {
        chLatin_H, chLatin_T, chLatin_T, chLatin_P, chNull
    };

    const char HTTP10[] =
    {
        chSpace, chLatin_H, chLatin_T, chLatin_T, chLatin_P, chForwardSlash, chDigit_1, chPeriod, chDigit_0, chCR, chLF, chNull
    };

    const char CRLF[] =
    {
        chCR, chLF, chNull
    };

    const char CRLF2X[] =
    {
        chCR, chLF, chCR, chLF, chNull
    };

    const char LF2X[] =
    {
        chLF, chLF, chNull
    };

    const char HOST[] =
    {
        chLatin_H, chLatin_o, chLatin_s, chLatin_t, chColon, chSpace, chNull
    };

    const char COLON[] =
    {
        chColon, chNull
    };

    const char resp200 [] =
    {
        chSpace, chDigit_2, chDigit_0, chDigit_0, chSpace, chNull
    };

    unsigned int charsEaten;
    unsigned int transSize;
    XMLTransService::Codes failReason;
    const unsigned int blockSize = 2048;
    const unsigned int bufSize = 5;
    static XMLCh portBuffer[bufSize+1];

    //
    // Pull all of the parts of the URL out of the urlSource object
    //

    const XMLCh*        hostName = urlSource.getHost();
    const XMLCh*        path = urlSource.getPath();
    const XMLCh*        fragment = urlSource.getFragment();
    const XMLCh*        query = urlSource.getQuery();                        

    //
    //  Convert the hostName to the platform's code page for gethostbyname and
    //  inet_addr functions.
    //

    char*               hostNameAsCharStar = XMLString::transcode(hostName, fMemoryManager);
    ArrayJanitor<char>  janBuf1(hostNameAsCharStar, fMemoryManager);

    //
    //  Convert all the parts of the urlSource object to ASCII so they can be
    //  sent to the remote host in that format
    //

    transSize = XMLString::stringLen(hostName)+1;
    char*               hostNameAsASCII = (char*) fMemoryManager->allocate
    (
        (transSize+1) * sizeof(char)
    );//new char[transSize+1];
    ArrayJanitor<char>  janBuf2(hostNameAsASCII, fMemoryManager);

    XMLTranscoder* trans = XMLPlatformUtils::fgTransService->makeNewTranscoderFor("ISO8859-1", failReason, blockSize, fMemoryManager);
    trans->transcodeTo(hostName, transSize, (unsigned char *) hostNameAsASCII, transSize, charsEaten, XMLTranscoder::UnRep_Throw);

    char*               pathAsASCII = 0;
    ArrayJanitor<char>  janBuf3(pathAsASCII, fMemoryManager);
    if (path)
    {
        transSize = XMLString::stringLen(path)+1;
        pathAsASCII = (char*) fMemoryManager->allocate
        (
            (transSize+1) * sizeof(char)
        );//new char[transSize+1];        
        trans->transcodeTo(path, transSize, (unsigned char *) pathAsASCII, transSize, charsEaten, XMLTranscoder::UnRep_Throw);
    }

    char*               fragmentAsASCII = 0;
    ArrayJanitor<char>  janBuf4(fragmentAsASCII, fMemoryManager);
    if (fragment)
    {
        transSize = XMLString::stringLen(fragment)+1;
        fragmentAsASCII = (char*) fMemoryManager->allocate
        (
            (transSize+1) * sizeof(char)
        );//new char[transSize+1];
        trans->transcodeTo(fragment, transSize, (unsigned char *) fragmentAsASCII, transSize, charsEaten, XMLTranscoder::UnRep_Throw);
    }

    char*               queryAsASCII = 0;
    ArrayJanitor<char>  janBuf5(queryAsASCII, fMemoryManager);
    if (query)
    {
        transSize = XMLString::stringLen(query)+1;
        queryAsASCII = (char*) fMemoryManager->allocate
        (
            (transSize+1) * sizeof(char)
        );//new char[transSize+1];
        trans->transcodeTo(query, transSize, (unsigned char *) queryAsASCII, transSize, charsEaten, XMLTranscoder::UnRep_Throw);
    }

    unsigned short      portNumber = (unsigned short) urlSource.getPortNum();

    //
    //  Convert port number integer to unicode so we can transcode it to ASCII
    //

    XMLString::binToText((unsigned int) portNumber, portBuffer, bufSize, 10, fMemoryManager);
    transSize = XMLString::stringLen(portBuffer)+1;
    char*               portAsASCII = (char*) fMemoryManager->allocate
    (
        (transSize+1) * sizeof(char)
    );//new char[transSize+1];
    trans->transcodeTo(portBuffer, transSize, (unsigned char *) portAsASCII, transSize, charsEaten, XMLTranscoder::UnRep_Throw);

    delete trans;

    //
    // Set up a socket.
    //
    struct hostent*     hostEntPtr = 0;
    struct sockaddr_in  sa;

    // Use the hostName in the local code page ....
    if ((hostEntPtr = gethostbyname(hostNameAsCharStar)) == NULL)
    {
        unsigned long  numAddress = inet_addr(hostNameAsCharStar);
        if (numAddress < 0)
        {
            ThrowXMLwithMemMgr1(NetAccessorException,
                     XMLExcepts::NetAcc_TargetResolution, hostName, fMemoryManager);
        }
        if ((hostEntPtr =
                gethostbyaddr((char *) &numAddress,
                              sizeof(unsigned long), AF_INET)) == NULL)
        {
            ThrowXMLwithMemMgr1(NetAccessorException,
                     XMLExcepts::NetAcc_TargetResolution, hostName, fMemoryManager);
        }
    }

    memset(&sa, '\0', sizeof(sockaddr_in));  // iSeries fix ??
    memcpy((void *) &sa.sin_addr,
           (const void *) hostEntPtr->h_addr, hostEntPtr->h_length);
    sa.sin_family = hostEntPtr->h_addrtype;
    sa.sin_port = htons(portNumber);

    int s = socket(hostEntPtr->h_addrtype, SOCK_STREAM, 0);
    if (s < 0)
    {
        ThrowXMLwithMemMgr1(NetAccessorException,
                 XMLExcepts::NetAcc_CreateSocket, urlSource.getURLText(), fMemoryManager);
    }

    if (connect(s, (struct sockaddr *) &sa, sizeof(sa)) < 0)
    {
        ThrowXMLwithMemMgr1(NetAccessorException,
                 XMLExcepts::NetAcc_ConnSocket, urlSource.getURLText(), fMemoryManager);
    }

    // The port is open and ready to go.
    // Build up the http GET command to send to the server.
    // To do:  We should really support http 1.1.  This implementation
    //         is weak.
    if(httpInfo==0)
      strcpy(fBuffer, GET);
    else
      switch(httpInfo->fHTTPMethod)
      {
        case XMLNetHTTPInfo::GET:   strcpy(fBuffer, GET); break;
        case XMLNetHTTPInfo::PUT:   strcpy(fBuffer, PUT); break;
        case XMLNetHTTPInfo::POST:  strcpy(fBuffer, POST); break;
      }
    if (pathAsASCII != 0)
    {
         strcat(fBuffer, pathAsASCII);
    }

    if (queryAsASCII != 0)
    {
        size_t n = strlen(fBuffer);
        fBuffer[n] = chQuestion;
        fBuffer[n+1] = chNull;
        strcat(fBuffer, queryAsASCII);
    }

    if (fragmentAsASCII != 0)
    {
        strcat(fBuffer, fragmentAsASCII);
    }
    strcat(fBuffer, HTTP10);

    strcat(fBuffer, HOST);
    strcat(fBuffer, hostNameAsASCII);
    if (portNumber != 80)
    {
        strcat(fBuffer,COLON);
        strcat(fBuffer,portAsASCII);
    }
    strcat(fBuffer, CRLF);

    if(httpInfo!=0 && httpInfo->fHeaders!=0)
        strncat(fBuffer,httpInfo->fHeaders,httpInfo->fHeadersLen);

    strcat(fBuffer, CRLF);

    // Send the http request
    int lent = strlen(fBuffer);
    int  aLent = 0;

    if ((aLent = write(s, (void *) fBuffer, lent)) != lent)
    {
        ThrowXMLwithMemMgr1(NetAccessorException,
                 XMLExcepts::NetAcc_WriteSocket, urlSource.getURLText(), fMemoryManager);
    }

    if(httpInfo!=0 && httpInfo->fPayload!=0) {
        int  aLent = 0;
        if ((aLent = write(s, (void *) httpInfo->fPayload, httpInfo->fPayloadLen)) != httpInfo->fPayloadLen)
        {
            ThrowXMLwithMemMgr1(NetAccessorException,
                     XMLExcepts::NetAcc_WriteSocket, urlSource.getURLText(), fMemoryManager);
        }
    }

    //
    // get the response, check the http header for errors from the server.
    //
    aLent = read(s, (void *)fBuffer, sizeof(fBuffer)-1);
    if (aLent <= 0)
    {
        ThrowXMLwithMemMgr1(NetAccessorException, XMLExcepts::NetAcc_ReadSocket, urlSource.getURLText(), fMemoryManager);
    }

    fBufferEnd = fBuffer+aLent;
    *fBufferEnd = 0;

    // Find the break between the returned http header and any data.
    //  (Delimited by a blank line)
    // Hang on to any data for use by the first read from this BinHTTPURLInputStream.
    //
    fBufferPos = strstr(fBuffer, CRLF2X);
    if (fBufferPos != 0)
    {
        fBufferPos += 4;
        *(fBufferPos-2) = 0;
    }
    else
    {
        fBufferPos = strstr(fBuffer, LF2X);
        if (fBufferPos != 0)
        {
            fBufferPos += 2;
            *(fBufferPos-1) = 0;
        }
        else
            fBufferPos = fBufferEnd;
    }

    // Make sure the header includes an HTTP 200 OK response.
    //
    char *p = strstr(fBuffer, HTTP);
    if (p == 0)
    {
        ThrowXMLwithMemMgr1(NetAccessorException, XMLExcepts::NetAcc_ReadSocket, urlSource.getURLText(), fMemoryManager);
    }

    p = strchr(p, chSpace);
    if (p == 0)
    {
        ThrowXMLwithMemMgr1(NetAccessorException, XMLExcepts::NetAcc_ReadSocket, urlSource.getURLText(), fMemoryManager);
    }
  
    if (memcmp(p, resp200, strlen(resp200)))
    {
        // Most likely a 404 Not Found error.
        //   Should recognize and handle the forwarding responses.
        //
        ThrowXMLwithMemMgr1(NetAccessorException, XMLExcepts::File_CouldNotOpenFile, urlSource.getURLText(), fMemoryManager);
    }

    fSocket = s;

}