Revision e1cb2c92 include/VirtualMachineAttribute.h
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#ifndef VIRTUAL_MACHINE_ATTRIBUTE_H_ |
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#define VIRTUAL_MACHINE_ATTRIBUTE_H_ |
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#include <vector> |
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#include <map> |
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#include "Attribute.h" |
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#include "Template.h" |
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#include "ExtendedAttribute.h" |
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/** |
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* This class represents a generic VirtualMachine attribute, it exposes the |
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* The attribute operates directly on the VirtualMachineTemplate attribute. IT |
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* IS NOT CLONED OR COPIED |
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*/ |
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class VirtualMachineAttribute: public Attribute |
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class VirtualMachineAttribute: public ExtendedAttribute
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{
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public: |
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/** |
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* Return the associated VectorAttribute to interface with vector attribute |
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* functions |
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*/ |
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VectorAttribute * vector_attribute() |
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{
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return va; |
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} |
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/* ---------------------------------------------------------------------- */ |
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/* VectorAttribute Interface */ |
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/* ---------------------------------------------------------------------- */ |
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template<typename T> |
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int vector_value(const std::string& name, T& value) const |
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{
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return va->vector_value(name, value); |
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} |
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string vector_value(const std::string& name) const |
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{
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return va->vector_value(name); |
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} |
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template<typename T> |
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void replace(const std::string& name, T value) |
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{
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va->replace(name, value); |
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} |
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void remove(const std::string& name) |
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{
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va->remove(name); |
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} |
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void merge(VectorAttribute* vattr, bool replace) |
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{
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va->merge(vattr, replace); |
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} |
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protected: |
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/** |
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* Creates the attribute with a reference to a VectorAttribute. The object |
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* @param va pointer to the VectorAttribute. |
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*/ |
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VirtualMachineAttribute(VectorAttribute *_va): |
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Attribute(_va->name()) ,va(_va), id(-1) {};
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ExtendedAttribute(_va){};
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VirtualMachineAttribute(VectorAttribute *_va, int _id): |
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Attribute(_va->name()) ,va(_va), id(_id) {};
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ExtendedAttribute(_va, _id) {};
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virtual ~VirtualMachineAttribute(){};
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/* ---------------------------------------------------------------------- */ |
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/* Attribute Interface */ |
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/* ---------------------------------------------------------------------- */ |
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string * marshall(const char * _sep = 0) const |
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{
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return va->marshall(_sep); |
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}; |
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string * to_xml() const |
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{
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return va->to_xml(); |
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}; |
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void unmarshall(const std::string& sattr, const char * _sep = 0) |
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{
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va->unmarshall(sattr, _sep); |
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} |
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AttributeType type() |
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{
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return va->type(); |
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}; |
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Attribute* clone() const |
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{
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return va->clone(); |
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}; |
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/* ---------------------------------------------------------------------- */ |
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/* VirtualMachineAttribute Interface */ |
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/* ---------------------------------------------------------------------- */ |
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/** |
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{
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bool value; |
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va->vector_value(flag, value);
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vector_value(flag, value); |
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return value; |
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} |
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int get_id() const |
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{
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return id; |
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} |
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private: |
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/* ---------------------------------------------------------------------- */ |
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/* ---------------------------------------------------------------------- */ |
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friend class VirtualMachineAttributeSet; |
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/* ---------------------------------------------------------------------- */ |
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/* ---------------------------------------------------------------------- */ |
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/** |
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* The associated VectorAttribute |
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*/ |
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VectorAttribute * va; |
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/** |
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* Set if the attribute can be addressed by an identifier, -1 otherwise |
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*/ |
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int id; |
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}; |
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/** |
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* This class represents a set of VirtualMachineAttributes it provides fast |
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* access to individual elements (by ID) and implement collective operations |
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*/ |
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class VirtualMachineAttributeSet |
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class VirtualMachineAttributeSet : public ExtendedAttributeSet
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{
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protected: |
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/** |
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* Creates the VirtualMachineAttribute set |
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* @param dispose elements upon set destruction |
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*/ |
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VirtualMachineAttributeSet(bool _dispose):dispose(_dispose){};
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VirtualMachineAttributeSet(bool _dispose):ExtendedAttributeSet(_dispose){};
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virtual ~VirtualMachineAttributeSet(); |
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virtual ~VirtualMachineAttributeSet(){};
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/* ---------------------------------------------------------------------- */ |
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/* Methods to access attributes */ |
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/** |
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* @return attribute by id or 0 if not found |
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*/ |
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VirtualMachineAttribute * get_attribute(int id) const; |
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VirtualMachineAttribute * get_attribute(int id) const |
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{
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return static_cast<VirtualMachineAttribute *>(get_attribute(id)); |
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} |
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/** |
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* @return attribute with the given flag set or 0 if not found |
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VirtualMachineAttribute * clear_flag(const string& flag_name); |
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/* ---------------------------------------------------------------------- */ |
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/* Iterators */ |
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/* ---------------------------------------------------------------------- */ |
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/** |
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* Generic iterator for the set. Wraps the STL iterator for map, can be |
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* used to iterate over the attributes |
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*/ |
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class AttributeIterator |
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{
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public: |
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AttributeIterator& operator=(const AttributeIterator& rhs) |
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{
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map_it = rhs.map_it; |
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return *this; |
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} |
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AttributeIterator& operator++() |
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{
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++map_it; |
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return *this; |
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} |
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bool operator!=(const AttributeIterator& rhs) |
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{
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return map_it != rhs.map_it; |
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} |
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AttributeIterator(){};
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AttributeIterator(const AttributeIterator& ait):map_it(ait.map_it){};
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AttributeIterator(const std::map<int, |
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VirtualMachineAttribute *>::iterator& _map_it):map_it(_map_it){};
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virtual ~AttributeIterator(){};
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protected: |
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std::map<int, VirtualMachineAttribute *>::iterator map_it; |
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}; |
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AttributeIterator begin() |
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{
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AttributeIterator it(a_set.begin()); |
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return it; |
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} |
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AttributeIterator end() |
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{
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AttributeIterator it(a_set.end()); |
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return it; |
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} |
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typedef class AttributeIterator attribute_iterator; |
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/* ---------------------------------------------------------------------- */ |
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/* Attribute map interface */ |
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/* ---------------------------------------------------------------------- */ |
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/** |
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* Adds a new VirtualMachine attribute to the set |
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*/ |
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void add_attribute(VirtualMachineAttribute * a, int id) |
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{
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a_set.insert(make_pair(id, a)); |
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} |
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/** |
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* Init the attribute set from a vector |
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* @param id_name with the ID of the attribute |
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* @param auto_ids automatically generate ids for the attributes |
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* @param vas vector of attribute to use |
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*/ |
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void init_attribute_map(const std::string& id_name, |
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std::vector<VectorAttribute *>& vas); |
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/** |
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* Abstract method to create the VirtualMachineAttributes for this set |
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*/ |
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virtual VirtualMachineAttribute * attribute_factory(VectorAttribute * va,
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virtual ExtendedAttribute * attribute_factory(VectorAttribute * va,
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int id) const = 0; |
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/* ---------------------------------------------------------------------- */ |
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/* ---------------------------------------------------------------------- */ |
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/** |
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* Map with the disk attributes |
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*/ |
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std::map<int, VirtualMachineAttribute *> a_set; |
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/** |
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* Frees the VectorAttribute associated with each VirtualMachineAttribute |
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* upon object destruction |
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*/ |
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bool dispose; |
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}; |
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#endif /*VIRTUAL_MACHINE_ATTRIBUTE_H_*/ |
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