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/*
* Copyright 2009, Google Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef O3D_CORE_CROSS_CLASS_MANAGER_H_
#define O3D_CORE_CROSS_CLASS_MANAGER_H_
#include <map>
#include <vector>
#include "core/cross/service_implementation.h"
#include "core/cross/iclass_manager.h"
namespace o3d {
// Maintains a collection of Class objects. Allows Classes to be retreived
// by name and objects of those Classes to be created.
class ClassManager : public IClassManager {
public:
explicit ClassManager(ServiceLocator* service_locator);
virtual void AddClass(const ObjectBase::Class* class_type,
ObjectCreateFunc function);
virtual void RemoveClass(const ObjectBase::Class* class_type);
virtual const ObjectBase::Class* GetClassByClassName(
const String& class_name) const;
virtual bool ClassNameIsAClass(const String& derived_class_name,
const ObjectBase::Class* base_class) const;
virtual ObjectBase::Ref CreateObjectByClass(
const ObjectBase::Class* object_class);
virtual ObjectBase::Ref CreateObject(const String& type_name);
std::vector<const ObjectBase::Class*> GetAllClasses() const;
private:
ServiceLocator* service_locator_;
ServiceImplementation<IClassManager> service_;
// A class to hold data about a class in the ObjectClassInfoNameMap;
class ObjectClassInfo {
public:
ObjectClassInfo(const ObjectBase::Class* class_type,
ObjectCreateFunc func)
: class_type_(class_type),
creation_func_(func) { }
const ObjectBase::Class* class_type() const {
return class_type_;
}
ObjectCreateFunc creation_func() const {
return creation_func_;
}
private:
const ObjectBase::Class* class_type_;
const ObjectCreateFunc creation_func_;
};
// A map by string of ObjectClassInfos.
typedef std::map<const String, ObjectClassInfo> ObjectClassInfoNameMap;
// A map by ObjectBase::Class of Object creations functions.
typedef std::map<const ObjectBase::Class*,
ObjectCreateFunc> ObjectCreatorClassMap;
// ObjectClassInfo by name.
ObjectClassInfoNameMap object_class_info_name_map_;
// ObjectClassInfo by class.
ObjectCreatorClassMap object_creator_class_map_;
};
}
#endif // O3D_CORE_CROSS_CLASS_MANAGER_H_
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