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TokenTableFactory.cpp

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00001 /* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  * vim:expandtab:autoindent:tabstop=4:shiftwidth=4:filetype=c:cindent:textwidth=0:
00003  *
00004  * Copyright (C) 2005 Dell Inc.
00005  *  by Michael Brown <Michael_E_Brown@dell.com>
00006  * Licensed under the Open Software License version 2.1
00007  *
00008  * Alternatively, you can redistribute it and/or modify
00009  * it under the terms of the GNU General Public License as published
00010  * by the Free Software Foundation; either version 2 of the License,
00011  * or (at your option) any later version.
00012 
00013  * This program is distributed in the hope that it will be useful, but
00014  * WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00016  * See the GNU General Public License for more details.
00017  */
00018 
00019 #define LIBSMBIOS_SOURCE
00020 #include "TokenImpl.h"
00021 #include "FactoryImpl2.h"
00022 
00023 using namespace std;
00024 
00025 namespace smbios
00026 {
00027     class TokenTableFactoryImpl : public factory::TFactory<TokenTableFactory>
00028     {
00029     public:
00030         TokenTableFactoryImpl() {};
00031         virtual ~TokenTableFactoryImpl() throw();
00032         virtual ITokenTable *getSingleton( const smbios::ISmbiosTable *table = 0 );
00033         virtual ITokenTable *makeNew( const smbios::ISmbiosTable *table );
00034     protected:
00035         static ITokenTable *_tablePtr;
00036     };
00037 
00038     TokenTableFactory::TokenTableFactory()
00039     {}
00040     
00041     TokenTableFactory::~TokenTableFactory() throw()
00042     {}
00043     
00044 
00045     TokenTableFactory *TokenTableFactory::getFactory()
00046     {
00047         // reinterpret_cast<...>(0) to ensure template parameter is correct
00048         // this is a workaround for VC6 which cannot use explicit member template
00049         // function initialization.
00050         return TokenTableFactoryImpl::getFactory(reinterpret_cast<TokenTableFactoryImpl *>(0));
00051     }
00052 
00053     ITokenTable           *TokenTableFactoryImpl::_tablePtr = 0;
00054 
00055     TokenTableFactoryImpl::~TokenTableFactoryImpl() throw()
00056     {
00057         if( _tablePtr )
00058         {
00059             delete _tablePtr;
00060         }
00061         _tablePtr = 0;
00062     }
00063 
00064     ITokenTable *TokenTableFactoryImpl::getSingleton(const ISmbiosTable *table)
00065     {
00066         if( !table )
00067         {
00068             table = smbios::SmbiosFactory::getFactory()->getSingleton();
00069         }
00070 
00071         if (! _tablePtr)
00072             _tablePtr =  makeNew(table);
00073 
00074         return _tablePtr;
00075     }
00076 
00077 
00078     ITokenTable *TokenTableFactoryImpl::makeNew(const ISmbiosTable *table)
00079     {
00080         if ((mode == AutoDetectMode) || (mode == UnitTestMode))
00081         {
00082             return new TokenTable( *table );
00083         }
00084         else
00085         {
00086             throw InvalidTokenTableModeImpl();
00087         }
00088     }
00089 
00090 }

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