gdcmutil.cxx

DTMK软件开发包,此为开源软件,是一款很好的医学图像开发资源.

/*=========================================================================
                                                                                
  Program:   gdcm
  Module:    $RCSfile: gdcmUtil.cxx,v $
  Language:  C++
  Date:      $Date: 2008-05-19 07:14:39 $
  Version:   $Revision: 1.44 $
                                                                                
  Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  l'Image). All rights reserved. See Doc/License.txt or
  http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
                                                                                
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notices for more information.
                                                                                
=========================================================================*/

#include "gdcmUtil.h"
#include "gdcmDebug.h"

#include <iostream>
#include <stdarg.h> // for va_list

// For GetCurrentDate, GetCurrentTime
#include <time.h>
#include <sys/types.h>
#include <sys/stat.h>

#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
#include <sys/timeb.h>
#else
#include <sys/time.h>
#endif

#include <stdarg.h>  //only included in implementation file
#include <stdio.h>   //only included in implementation file

#if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__MINGW32__)
   #include <winsock.h>  // for gethostname and gethostbyname and GetTickCount...
// I haven't find a way to determine wether we need to under GetCurrentTime or not...
// I think the best solution would simply to get rid of this problematic function
// and use a 'less' common name...
#if !defined(__BORLANDC__) || (__BORLANDC__ >= 0x0560)
   #undef GetCurrentTime
#endif
#else
   #include <unistd.h>  // for gethostname
   #include <netdb.h>   // for gethostbyname
#endif

// For GetMACAddress
#ifdef _WIN32
   #include <snmp.h>
   #include <conio.h>
#else
   #include <unistd.h>
   #include <stdlib.h>
   #include <string.h>
   #include <sys/types.h>
#endif

#ifdef CMAKE_HAVE_SYS_IOCTL_H
   #include <sys/ioctl.h>  // For SIOCGIFCONF on Linux
#endif
#ifdef CMAKE_HAVE_SYS_SOCKET_H
   #include <sys/socket.h>
#endif
#ifdef CMAKE_HAVE_SYS_SOCKIO_H
   #include <sys/sockio.h>  // For SIOCGIFCONF on SunOS
#endif
#ifdef CMAKE_HAVE_NET_IF_H
   #include <net/if.h>
#endif
#ifdef CMAKE_HAVE_NETINET_IN_H
   #include <netinet/in.h>   //For IPPROTO_IP
#endif
#ifdef CMAKE_HAVE_NET_IF_DL_H
   #include <net/if_dl.h>
#endif
#if defined(CMAKE_HAVE_NET_IF_ARP_H) && defined(__sun)
   // This is absolutely necessary on SunOS
   #include <net/if_arp.h>
#endif

// For GetCurrentThreadID()
#ifdef __linux__
   #include <sys/types.h>
   #include <linux/unistd.h>
#endif
#ifdef __sun
   #include <thread.h>
#endif

#if _WIN32
#define HAVE_UUIDCREATE
#else
#ifdef GDCM_SYSTEM_UUID_FOUND
#define HAVE_UUID_GENERATE
#include "uuid/uuid.h"
#endif
#endif


#include <bitset>


namespace gdcm 
{
//-------------------------------------------------------------------------
const std::string Util::GDCM_UID = "1.2.826.0.1.3680043.2.1143";
std::string Util::RootUID        = GDCM_UID;
/*
 * File Meta Information Version (0002,0001) shall contain a two byte OB 
 * value consisting of a 0x00 byte, followed by 0x01 byte, and not the 
 * value 0x0001 encoded as a little endian 16 bit short value, 
 * which would be the other way around...
 */
const uint16_t Util::FMIV = 0x0100;
uint8_t *Util::FileMetaInformationVersion = (uint8_t *)&FMIV;
#if defined(HAVE_UUIDCREATE) || defined(HAVE_UUID_GENERATE) || defined(HAVE_UUID_CREATE)
std::string Util::GDCM_MAC_ADDRESS = "";
#else
std::string Util::GDCM_MAC_ADDRESS = GetMACAddress();
#endif

//-------------------------------------------------------------------------
// Public
/**
 * \brief Provide a better 'c++' approach for sprintf
 * For example c code is:
 * char result[2048]; // hope 2048 is enough
 * sprintf(result, "%04x|%04x", group , elem);
 *
 * c++ code is 
 * itksys_ios::ostringstream buf;
 * buf << std::right << std::setw(4) << std::setfill('0') << std::hex
 *     << group << "|" << std::right << std::setw(4) << std::setfill('0') 
 *     << std::hex <<  elem;
 * buf.str();
 *
 * gdcm style code is
 * string result;
 * result = gdcm::Util::Format("%04x|%04x", group , elem);
 */
std::string Util::Format(const char *format, ...)
{
   char buffer[2048]; // hope 2048 is enough
   va_list args;
   va_start(args, format);
   vsprintf(buffer, format, args);  //might be a security flaw
   va_end(args); // Each invocation of va_start should be matched 
                 // by a corresponding invocation of va_end
                 // args is then 'undefined'
   return buffer;
}


/**
 * \brief Because not available in C++ (?)
 * @param str string to check
 * @param tokens std::vector to receive the tokenized substrings
 * @param delimiters string containing the character delimitors
 
 */
void Util::Tokenize (const std::string &str,
                     std::vector<std::string> &tokens,
                     const std::string &delimiters)
{
   std::string::size_type lastPos = str.find_first_not_of(delimiters,0);
   std::string::size_type pos     = str.find_first_of    (delimiters,lastPos);
   while (std::string::npos != pos || std::string::npos != lastPos)
   {
      tokens.push_back(str.substr(lastPos, pos - lastPos));
      lastPos = str.find_first_not_of(delimiters, pos);
      pos     = str.find_first_of    (delimiters, lastPos);
   }
}

/**
 * \brief Because not available in C++ (?)
 *        Counts the number of occurences of a substring within a string
 * @param str string to check
 * @param subStr substring to count
 */
 
int Util::CountSubstring (const std::string &str,
                          const std::string &subStr)
{
   int count = 0;                 // counts how many times it appears
   std::string::size_type x = 0;  // The index position in the string

   do
   {
      x = str.find(subStr,x);     // Find the substring
      if (x != std::string::npos) // If present
      {
         count++;                 // increase the count
         x += subStr.length();    // Skip this word
      }
   }
   while (x != std::string::npos);// Carry on until not present

   return count;
}

/**
 * \brief  Checks whether a 'string' is printable or not (in order
 *         to avoid corrupting the terminal of invocation when printing)
 * @param s string to check
 */
bool Util::IsCleanString(std::string const &s)
{
   for(unsigned int i=0; i<s.size(); i++)
   {
      if (!isprint((unsigned char)s[i]) )
      {
         return false;
      }
   }
   return true;   
}

/**
 * \brief  Checks whether an 'area' is printable or not (in order
 *         to avoid corrupting the terminal of invocation when printing)
 * @param s area to check (uint8_t is just for prototyping. feel free to cast)
 * @param l area length to check
 */
bool Util::IsCleanArea(uint8_t *s, int l)
{
   for( int i=0; i<l; i++)
   {
      if (!isprint((unsigned char)s[i]) )
      {
         return false;
      }
   }
   return true;   
}
/**
 * \brief  Weed out a string from the non-printable characters (in order
 *         to avoid corrupting the terminal of invocation when printing)
 * @param s string to check (uint8_t is just for prototyping. feel free to cast)
 */
std::string Util::CreateCleanString(std::string const &s)
{
   std::string str = s;

   for(unsigned int i=0; i<str.size(); i++)
   {
      if (!isprint((unsigned char)str[i]) )
      {
         str[i] = '.';
      }
   }

   if (str.size() > 0 )
   {
      if (!isprint((unsigned char)s[str.size()-1]) )
      {
         if (s[str.size()-1] == 0 )
         {
            str[str.size()-1] = ' ';
         }
      }
   }

   return str;
}

/**
 * \brief  Weed out a string from the non-printable characters (in order
 *         to avoid corrupting the terminal of invocation when printing)
 * @param s area to process (uint8_t is just for prototyping. feel free to cast)
 * @param l area length to check
 */
std::string Util::CreateCleanString(uint8_t *s, int l)
{
   std::string str;

   for( int i=0; i<l; i++)
   {
      if (!isprint((unsigned char)s[i]) )
      {
         str = str + '.';
      }
   else
      {
         str = str + (char )s[i];
      }
   }

   return str;
}
/**
 * \brief   Add a SEPARATOR to the end of the name if necessary
 * @param   pathname file/directory name to normalize 
 */
std::string Util::NormalizePath(std::string const &pathname)
{
   const char SEPARATOR_X      = '/';
   const char SEPARATOR_WIN    = '\\';
   const std::string SEPARATOR = "/";
   std::string name = pathname;
   std::string::size_type size = name.size();

   if ( name[size-1] != SEPARATOR_X && name[size-1] != SEPARATOR_WIN )
   {
      name += SEPARATOR;
   }
   return name;
}

/**
 * \brief   Get the (directory) path from a full path file name
 * @param   fullName file/directory name to extract Path from
 */
std::string Util::GetPath(std::string const &fullName)
{
   std::string res = fullName;
   std::string::size_type pos1 = res.rfind("/");
   std::string::size_type pos2 = res.rfind("\\");
   if ( pos1 > pos2 )
   {
      res.resize(pos1);
   }
   else
   {
      res.resize(pos2);
   }

   return res;
}

/**
 * \brief   Get the (last) name of a full path file name
 * @param   fullName file/directory name to extract end name from
 */
std::string Util::GetName(std::string const &fullName)
{   
  std::string filename = fullName;

  std::string::size_type slash_pos = filename.rfind("/");
  std::string::size_type backslash_pos = filename.rfind("\\");
  slash_pos = slash_pos > backslash_pos ? slash_pos : backslash_pos;
  if (slash_pos != std::string::npos )
    {
    return filename.substr(slash_pos + 1);
    }
  else
    {
    return filename;
    }
} 

/**
 * \brief   Get the current date of the system in a dicom string
 */
std::string Util::GetCurrentDate()
{
    char tmp[512];
    time_t tloc;
    time (&tloc);    
    strftime(tmp,512,"%Y%m%d", localtime(&tloc) );
    return tmp;
}

/**
 * \brief   Get the current time of the system in a dicom string
 */
std::string Util::GetCurrentTime()
{
    char tmp[512];
    time_t tloc;
    time (&tloc);
    strftime(tmp,512,"%H%M%S", localtime(&tloc) );
    return tmp;