ObjectImpl.h

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/*
 * ObjectImpl.h
 *
 *  Created on: 10 Jul 2023
 *      Author: valentin
 */
 
#ifndef WPP_OBJECT_IMPL_H_
#define WPP_OBJECT_IMPL_H_
 
#include "Object.h"
 
namespace wpp {
 
template<typename T>
class ObjectImpl : public Object {
public:
    ObjectImpl(lwm2m_context_t &context): Object(context) {}
    ObjectImpl(lwm2m_context_t &context, const ObjectInfo &info): Object(context, info) {}
    ~ObjectImpl() {};
 
    /* ------------- ObjectImpl instance management ------------- */
 
    Instance* createInstance(ID_T instanceID = ID_T_MAX_VAL) override;
};
 
/* ---------- Implementation of methods ----------*/
template<typename T>
Instance* ObjectImpl<T>::createInstance(ID_T instanceId) {
    // If object is single and instance has already exist, then we can not create new one and return NULL
    if (getObjectInfo().isSingle == IS_SINGLE::SINGLE && instanceCnt() != 0) {
        WPP_LOGW(TAG_WPP_OBJ, "Not possible to create instance %d:%d, object is single", getObjectID(), instanceId);
        return NULL;
    }
    // If instanceId == ID_T_MAX_VAL, it is mean that user do not want to set its own identifier, so we will choose ours
    if (instanceId == ID_T_MAX_VAL) instanceId = getFirstAvailableInstanceID();
    // If ID has been already occupied, then we can not create new instance with such ID and returns NULL
    if (instanceId == ID_T_MAX_VAL || isExist(instanceId)) {
        WPP_LOGW(TAG_WPP_OBJ, "Not possible to create instance %d:%d, ID has been already occupied", getObjectID(), instanceId);
        return NULL;
    }
 
    WPP_LOGD(TAG_WPP_OBJ, "Creating instance %d:%d", getObjectID(), instanceId);
    // Creation and registration new instance in core object
     lwm2m_list_t *element = new lwm2m_list_t;
     if (NULL == element) return NULL;
     element->next = NULL;
     element->id = instanceId;
     _lwm2m_object.instanceList = LWM2M_LIST_ADD(_lwm2m_object.instanceList, element);
 
    // TODO: Add check to each new or malloc operation
    // Creating new instance
    T *inst = new T(_context, {(ID_T)_objInfo.objID, instanceId});
    _instances.push_back(inst);
 
    // Update server registration
    lwm2m_update_registration(&getContext(), 0, false, true);
 
    return inst;
}
 
} // namespace wpp
#endif /* WPP_OBJECT_IMPL_H_ */