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simgear/simgear/hla/HLAObjectClass.hxx
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// Copyright (C) 2009 - 2010 Mathias Froehlich - Mathias.Froehlich@web.de
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Library General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Library General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
#ifndef HLAObjectClass_hxx
#define HLAObjectClass_hxx
#include <set>
#include <string>
#include <vector>
#include "HLADataType.hxx"
#include "HLAObjectInstance.hxx"
namespace simgear {
class RTIObjectClass;
class HLAFederate;
class HLAObjectClass : public SGWeakReferenced {
public:
HLAObjectClass(const std::string& name, HLAFederate& federate);
virtual ~HLAObjectClass();
const std::string& getName() const
{ return _name; }
unsigned getNumAttributes() const;
unsigned getAttributeIndex(const std::string& name) const;
std::string getAttributeName(unsigned index) const;
const HLADataType* getAttributeDataType(unsigned index) const;
void setAttributeDataType(unsigned index, const HLADataType*);
HLAUpdateType getAttributeUpdateType(unsigned index) const;
void setAttributeUpdateType(unsigned index, HLAUpdateType updateType);
HLADataElement::IndexPathPair getIndexPathPair(const HLADataElement::AttributePathPair&) const;
HLADataElement::IndexPathPair getIndexPathPair(const std::string& path) const;
bool subscribe(const std::set<unsigned>& indexSet, bool active);
bool unsubscribe();
bool publish(const std::set<unsigned>& indexSet);
bool unpublish();
// Object instance creation and destruction
class InstanceCallback : public SGReferenced {
public:
virtual ~InstanceCallback();
virtual void discoverInstance(const HLAObjectClass& objectClass, HLAObjectInstance& objectInstance, const RTIData& tag);
virtual void removeInstance(const HLAObjectClass& objectClass, HLAObjectInstance& objectInstance, const RTIData& tag);
virtual void registerInstance(const HLAObjectClass& objectClass, HLAObjectInstance& objectInstance);
virtual void deleteInstance(const HLAObjectClass& objectClass, HLAObjectInstance& objectInstance);
};
void setInstanceCallback(const SGSharedPtr<InstanceCallback>& instanceCallback)
{ _instanceCallback = instanceCallback; }
const SGSharedPtr<InstanceCallback>& getInstanceCallback() const
{ return _instanceCallback; }
// Handles startRegistrationForObjectClass and stopRegistrationForObjectClass events
class RegistrationCallback : public SGReferenced {
public:
virtual ~RegistrationCallback();
virtual void startRegistration(HLAObjectClass& objectClass) = 0;
virtual void stopRegistration(HLAObjectClass& objectClass) = 0;
};
void setRegistrationCallback(const SGSharedPtr<RegistrationCallback>& registrationCallback)
{ _registrationCallback = registrationCallback; }
const SGSharedPtr<RegistrationCallback>& getRegistrationCallback() const
{ return _registrationCallback; }
// Is called by the default registration callback if installed
void startRegistration() const;
void stopRegistration() const;
protected:
virtual HLAObjectInstance* createObjectInstance(RTIObjectInstance* rtiObjectInstance);
private:
// The internal entry points from the RTILObjectClass callback functions
void discoverInstance(RTIObjectInstance* objectInstance, const RTIData& tag);
void removeInstance(HLAObjectInstance& objectInstance, const RTIData& tag);
void registerInstance(HLAObjectInstance& objectInstance);
void deleteInstance(HLAObjectInstance& objectInstance);
void discoverInstanceCallback(HLAObjectInstance& objectInstance, const RTIData& tag) const;
void removeInstanceCallback(HLAObjectInstance& objectInstance, const RTIData& tag) const;
void registerInstanceCallback(HLAObjectInstance& objectInstance) const;
void deleteInstanceCallback(HLAObjectInstance& objectInstance) const;
void startRegistrationCallback();
void stopRegistrationCallback();
friend class HLAObjectInstance;
friend class RTIObjectClass;
// The object class name
std::string _name;
// The underlying rti dispatcher class
SGSharedPtr<RTIObjectClass> _rtiObjectClass;
// Callback classes
SGSharedPtr<InstanceCallback> _instanceCallback;
SGSharedPtr<RegistrationCallback> _registrationCallback;
// The set of active objects
typedef std::set<SGSharedPtr<HLAObjectInstance> > ObjectInstanceSet;
ObjectInstanceSet _objectInstanceSet;
};
} // namespace simgear
#endif