mirror of https://github.com/Icinga/icinga2.git
127 lines
3.8 KiB
C++
127 lines
3.8 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2016 Icinga Development Team (https://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 CONFIGTYPE_H
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#define CONFIGTYPE_H
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#include "base/i2-base.hpp"
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#include "base/object.hpp"
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#include "base/type.hpp"
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#include "base/dictionary.hpp"
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namespace icinga
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{
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class ConfigObject;
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template<typename T>
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class ConfigTypeIterator;
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class I2_BASE_API ConfigType
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{
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public:
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virtual ~ConfigType(void);
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intrusive_ptr<ConfigObject> GetObject(const String& name) const;
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void RegisterObject(const intrusive_ptr<ConfigObject>& object);
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void UnregisterObject(const intrusive_ptr<ConfigObject>& object);
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std::pair<ConfigTypeIterator<ConfigObject>, ConfigTypeIterator<ConfigObject> > GetObjects(void);
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template<typename T>
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static std::pair<ConfigTypeIterator<T>, ConfigTypeIterator<T> > GetObjectsByType(void)
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{
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Type::Ptr type = T::TypeInstance;
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return std::make_pair(
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ConfigTypeIterator<T>(type, 0),
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ConfigTypeIterator<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 ConfigTypeIterator;
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typedef std::map<String, intrusive_ptr<ConfigObject> > ObjectMap;
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typedef std::vector<intrusive_ptr<ConfigObject> > ObjectVector;
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mutable boost::mutex m_Mutex;
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ObjectMap m_ObjectMap;
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ObjectVector m_ObjectVector;
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};
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template<typename T>
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class ConfigTypeIterator : public boost::iterator_facade<ConfigTypeIterator<T>, const intrusive_ptr<T>, boost::forward_traversal_tag>
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{
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public:
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ConfigTypeIterator(const Type::Ptr& type, int index)
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: m_Type(type), m_ConfigType(dynamic_cast<ConfigType *>(type.get())), m_Index(index)
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{
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ASSERT(m_ConfigType);
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}
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private:
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friend class boost::iterator_core_access;
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Type::Ptr m_Type;
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ConfigType *m_ConfigType;
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ConfigType::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 ConfigTypeIterator<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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boost::mutex::scoped_lock lock(m_ConfigType->m_Mutex);
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if ((other.m_Index == UINT_MAX || other.m_Index >= other.m_ConfigType->m_ObjectVector.size()) &&
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(m_Index == UINT_MAX || m_Index >= m_ConfigType->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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boost::mutex::scoped_lock lock(m_ConfigType->m_Mutex);
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m_Current = static_pointer_cast<T>(*(m_ConfigType->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 /* CONFIGTYPE_H */
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