mirror of https://gitee.com/openkylin/gdcm.git
72 lines
1.9 KiB
C++
72 lines
1.9 KiB
C++
/*=========================================================================
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Program: GDCM (Grassroots DICOM). A DICOM library
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Copyright (c) 2006-2011 Mathieu Malaterre
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All rights reserved.
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See Copyright.txt or http://gdcm.sourceforge.net/Copyright.html for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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#ifndef GDCMCRYPTOFACTORY_H
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#define GDCMCRYPTOFACTORY_H
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#include "gdcmCryptographicMessageSyntax.h"
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#include <map>
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namespace gdcm
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{
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/**
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* \brief Class to do handle the crypto factory
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* \details GDCM needs to access in a platform independent way
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* the user specified crypto engine. It can be:
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* \li CAPI (windows only)
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* \li OPENSSL (portable)
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* \li OPENSSLP7 (portable)
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* By default the factory will try:
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* CAPI if on windows
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* OPENSSL if possible
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* OPENSSLP7 when older OpenSSL is used.
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*/
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class GDCM_EXPORT CryptoFactory
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{
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public:
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enum CryptoLib {DEFAULT = 0, OPENSSL = 1, CAPI = 2, OPENSSLP7 = 3};
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virtual CryptographicMessageSyntax* CreateCMSProvider() = 0;
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static CryptoFactory* GetFactoryInstance(CryptoLib id = DEFAULT);
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protected:
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CryptoFactory(CryptoLib id)
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{
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AddLib(id, this);
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}
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private:
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static std::map<CryptoLib, CryptoFactory*>& getInstanceMap()
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{
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static std::map<CryptoLib, CryptoFactory*> libs;
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return libs;
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}
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static void AddLib(CryptoLib id, CryptoFactory* f)
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{
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if (getInstanceMap().insert(std::pair<CryptoLib, CryptoFactory*>(id, f)).second == false)
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{
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gdcmErrorMacro( "Library already registered under id " << (int)id );
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}
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}
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protected:
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CryptoFactory()= default;
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~CryptoFactory()= default;
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};
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} // end namespace gdcm
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#endif // GDCMCRYPTOFACTORY_H
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