mirror of https://github.com/Icinga/icinga2.git
138 lines
4.0 KiB
C++
138 lines
4.0 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2015 Icinga Development Team (http://www.icinga.org) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#ifndef DYNAMICTYPE_H
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#define DYNAMICTYPE_H
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#include "base/i2-base.hpp"
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#include "base/dynamicobject.hpp"
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#include "base/objectlock.hpp"
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#include <map>
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# include <boost/iterator/iterator_facade.hpp>
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namespace icinga
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{
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template<typename T>
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class DynamicTypeIterator;
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class I2_BASE_API DynamicType : public Object
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{
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public:
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DECLARE_PTR_TYPEDEFS(DynamicType);
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DynamicType(const String& name);
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String GetName(void) const;
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static DynamicType::Ptr GetByName(const String& name);
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DynamicObject::Ptr GetObject(const String& name) const;
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void RegisterObject(const DynamicObject::Ptr& object);
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static std::vector<DynamicType::Ptr> GetTypes(void);
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std::pair<DynamicTypeIterator<DynamicObject>, DynamicTypeIterator<DynamicObject> > GetObjects(void);
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template<typename T>
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static std::pair<DynamicTypeIterator<T>, DynamicTypeIterator<T> > GetObjectsByType(void)
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{
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DynamicType::Ptr type = GetByName(T::GetTypeName());
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return std::make_pair(
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DynamicTypeIterator<T>(type, 0),
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DynamicTypeIterator<T>(type, UINT_MAX)
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);
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}
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private:
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template<typename T> friend class DynamicTypeIterator;
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String m_Name;
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typedef std::map<String, DynamicObject::Ptr> ObjectMap;
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typedef std::vector<DynamicObject::Ptr> ObjectVector;
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ObjectMap m_ObjectMap;
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ObjectVector m_ObjectVector;
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typedef std::map<String, DynamicType::Ptr> TypeMap;
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typedef std::vector<DynamicType::Ptr> TypeVector;
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static TypeMap& InternalGetTypeMap(void);
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static TypeVector& InternalGetTypeVector(void);
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static boost::mutex& GetStaticMutex(void);
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};
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template<typename T>
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class DynamicTypeIterator : public boost::iterator_facade<DynamicTypeIterator<T>, const intrusive_ptr<T>, boost::forward_traversal_tag>
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{
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public:
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DynamicTypeIterator(const DynamicType::Ptr& type, int index)
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: m_Type(type), m_Index(index)
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{ }
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private:
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friend class boost::iterator_core_access;
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DynamicType::Ptr m_Type;
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DynamicType::ObjectVector::size_type m_Index;
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mutable intrusive_ptr<T> m_Current;
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void increment(void)
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{
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m_Index++;
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}
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void decrement(void)
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{
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m_Index--;
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}
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void advance(int n)
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{
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m_Index += n;
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}
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bool equal(const DynamicTypeIterator<T>& other) const
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{
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ASSERT(other.m_Type == m_Type);
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{
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ObjectLock olock(m_Type);
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if ((other.m_Index == UINT_MAX || other.m_Index >= other.m_Type->m_ObjectVector.size()) &&
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(m_Index == UINT_MAX || m_Index >= m_Type->m_ObjectVector.size()))
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return true;
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}
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return (other.m_Index == m_Index);
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}
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const intrusive_ptr<T>& dereference(void) const
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{
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ObjectLock olock(m_Type);
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m_Current = static_pointer_cast<T>(*(m_Type->m_ObjectVector.begin() + m_Index));
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return m_Current;
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}
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};
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}
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#endif /* DYNAMICTYPE_H */
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