# BasicClassRegistry.h

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    00001 /*******************************************************************\
    00002
    00003               Copyright (C) 2003 Joseph Coffland
    00004
    00005     This program is free software; you can redistribute it and/or
    00006      modify it under the terms of the GNU General Public License
    00007     as published by the Free Software Foundation; either version 2
    00008         of the License, or (at your option) any later version.
    00009
    00010    This program is distributed in the hope that it will be useful,
    00011     but WITHOUT ANY WARRANTY; without even the implied warranty of
    00012     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    00013              GNU General Public License for more details.
    00014
    00015   You should have received a copy of the GNU General Public License
    00016      along with this program; if not, write to the Free Software
    00017       Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
    00018                            02111-1307, USA.
    00019
    00020             For information regarding this software email
    00021                    jcofflan@users.sourceforge.net
    00022
    00023 \*******************************************************************/
    00024
    00025 #ifndef BASICCLASSREGISTRY_H
    00026 #define BASICCLASSREGISTRY_H
    00027
    00028 #include "BasicException.h"
    00029 #include "BasicClassFactoryBase.h"
    00030 #include "BasicSmartPointer.h"
    00031
    00032 #include <string>
    00033 #include <map>
    00034
    00035 template <class T>
    00036 class BasicClassRegistry {
    00037   typedef std::map<std::string, BasicClassFactoryBase<T> *> factoryMap_t;
    00038   factoryMap_t factoryMap;
    00039
    00040 public:
    00041   BasicClassRegistry() {}
    00042
    00043   ~BasicClassRegistry() {
    00044     typename factoryMap_t::iterator it;
    00045     for (it = factoryMap.begin(); it != factoryMap.end(); it++)
    00046       delete it->second;
    00047   }
    00048
    00049   BasicClassFactoryBase<T> *unregisterFactory(const std::string id) {
    00050     BasicClassFactoryBase<T> *factory = factoryMap[id];
    00051     factoryMap.erase(id);
    00052     return factory;
    00053   }
    00054
    00055   void registerFactory(BasicClassFactoryBase<T> *factory,
    00056                        const std::string id) {
    00057     ASSERT_OR_THROW(std::string("registerFactory() Factory with id '") +
    00058                     id + "' already registered",
    00059                     factoryMap.find(id) == factoryMap.end());
    00060
    00061     factoryMap[id] = factory;
    00062   }
    00063
    00064   BasicSmartPointer<T> create(const std::string id) {
    00065     BasicClassFactoryBase<T> *factory = factoryMap[id];
    00066     ASSERT_OR_THROW(std::string("create() Factory '") + id + "' not found!",
    00067                     factory);
    00068
    00069     return BasicSmartPointer<T>(factory->create());
    00070   }
    00071 };
    00072
    00073 #endif