# gdcmUIDGenerator.h

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    00001 /*=========================================================================
    00002
    00003   Program: GDCM (Grassroots DICOM). A DICOM library
    00004   Module:  $URL$
    00005
    00006   Copyright (c) 2006-2009 Mathieu Malaterre
    00007   All rights reserved.
    00008   See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
    00009
    00010      This software is distributed WITHOUT ANY WARRANTY; without even
    00011      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
    00012      PURPOSE.  See the above copyright notice for more information.
    00013
    00014 =========================================================================*/
    00015 #ifndef __gdcmUIDGenerator_h
    00016 #define __gdcmUIDGenerator_h
    00017
    00018 #include "gdcmTypes.h"
    00019
    00020 namespace gdcm
    00021 {
    00022
    00030 class GDCM_EXPORT UIDGenerator
    00031 {
    00032 public:
    00034   UIDGenerator():Unique() {}
    00035
    00036   // Function to override the GDCM root with a user one:
    00037   // WARNING: This need to be a valid root, otherwise call will fail
    00038   // Implementation note. According to DICOM standard PS 3.5, Section 9 :
    00039   // Unique Identifiers (UIDs), we have:
    00040   /*
    00041   ...
    00042   The <org root> portion of the UID uniquely identifies an organization, (i.e., manufacturer, research
    00043   organization, NEMA, etc.), and is composed of a number of numeric components as defined by ISO 8824.
    00044   The <suffix> portion of the UID is also composed of a number of numeric components, and shall be
    00045   unique within the scope of the <org root>. This implies that the organization identified in the <org root> is
    00046   responsible for guaranteeing <suffix> uniqueness by providing registration policies. These policies shall
    00047   guarantee <suffix> uniqueness for all UID's created by that organization. Unlike the <org root>, which may
    00048   be common for UID's in an organization, the <suffix> shall take different unique values between different
    00049   UID's that identify different objects.
    00050   ...
    00051    */
    00057   static void SetRoot(const char * root);
    00058   static const char *GetRoot();
    00059
    00066   const char* Generate();
    00067
    00070   static bool IsValid(const char *uid);
    00071
    00073   static const char *GetGDCMUID(); // who would want that in the public API ??
    00074
    00075 protected:
    00076   static bool GenerateUUID(unsigned char *uuid_data);
    00077   const char* Generate2();
    00078
    00079 private:
    00080   static const char GDCM_UID[];
    00081   static std::string Root;
    00082   static std::string EncodedHardwareAddress;
    00083   std::string Unique; // Buffer
    00084 };
    00085
    00086
    00087 } // end namespace gdcm
    00088
    00089 #endif //__gdcmUIDGenerator_h