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132 lines
4.6 KiB
C++
132 lines
4.6 KiB
C++
/* -------------------------------------------------------------------------- */
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/* Copyright 2002-2024, OpenNebula Project, OpenNebula Systems */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); you may */
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/* not use this file except in compliance with the License. You may obtain */
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/* a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. */
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/* See the License for the specific language governing permissions and */
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/* limitations under the License. */
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/* -------------------------------------------------------------------------- */
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#ifndef VIRTUAL_MACHINE_ATTRIBUTE_H_
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#define VIRTUAL_MACHINE_ATTRIBUTE_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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* basic VectorAttribute interface and can be decorated with functionality
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* for an specific class, (e.g. disks or nics).
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*
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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 ExtendedAttribute
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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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* is shared and WILL BE modified through this interface.
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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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ExtendedAttribute(_va) {};
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VirtualMachineAttribute(VectorAttribute *_va, int _id):
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ExtendedAttribute(_va, _id) {};
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virtual ~VirtualMachineAttribute() {};
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/* ---------------------------------------------------------------------- */
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/* VirtualMachineAttribute Interface */
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/* ---------------------------------------------------------------------- */
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/**
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* Sets the flag in the attribute in the form (FLAG="YES")
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*/
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void set_flag(const std::string& flag)
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{
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replace(flag, true);
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};
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/**
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* Clears a previously set flag
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*/
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void clear_flag(const std::string& flag)
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{
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remove(flag);
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};
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bool is_flag(const std::string& flag) const
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{
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bool value;
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vector_value(flag, value);
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return value;
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}
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private:
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friend class VirtualMachineAttributeSet;
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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 : 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):ExtendedAttributeSet(_dispose) {};
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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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/**
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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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{
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return static_cast<VirtualMachineAttribute *>(
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ExtendedAttributeSet::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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*/
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VirtualMachineAttribute * get_attribute(const std::string& flag) const;
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/**
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* Deletes the attribute with the given flag set.
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* @return Pointer to the attribute or 0 if not found
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*/
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VirtualMachineAttribute * remove_attribute(const std::string& flag);
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/**
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* Sets flag in a VirtualMachineAttribute
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* @param a_id of the attribute
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* @param flag_name
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* @return 0 on success
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*/
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int set_flag(int a_id, const std::string& flag_name);
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/**
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* Clears the flag from the VirtualMachineAttributes in the set.
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* @return the attribute for which the flag was cleared, 0 if none
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*/
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VirtualMachineAttribute * clear_flag(const std::string& flag_name);
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};
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#endif /*VIRTUAL_MACHINE_ATTRIBUTE_H_*/
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