mirror of
https://github.com/Icinga/icinga2.git
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154 lines
3.8 KiB
C++
154 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 DICTIONARY_H
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#define DICTIONARY_H
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#include "base/i2-base.hpp"
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#include "base/object.hpp"
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#include "base/value.hpp"
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#include <boost/range/iterator.hpp>
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#include <map>
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#include <vector>
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namespace icinga
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{
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/**
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* A container that holds key-value pairs.
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*
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* @ingroup base
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*/
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class I2_BASE_API Dictionary : public Object
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{
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public:
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DECLARE_OBJECT(Dictionary);
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/**
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* An iterator that can be used to iterate over dictionary elements.
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*/
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typedef std::map<String, Value>::iterator Iterator;
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typedef std::map<String, Value>::size_type SizeType;
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typedef std::pair<String, Value> Pair;
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inline Dictionary(void)
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{ }
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inline ~Dictionary(void)
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{ }
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Value Get(const String& key) const;
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bool Get(const String& key, Value *result) const;
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void Set(const String& key, const Value& value);
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bool Contains(const String& key) const;
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/**
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* Returns an iterator to the beginning of the dictionary.
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*
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* Note: Caller must hold the object lock while using the iterator.
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*
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* @returns An iterator.
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*/
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inline Iterator Begin(void)
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{
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ASSERT(OwnsLock());
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return m_Data.begin();
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}
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/**
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* Returns an iterator to the end of the dictionary.
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*
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* Note: Caller must hold the object lock while using the iterator.
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*
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* @returns An iterator.
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*/
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inline Iterator End(void)
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{
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ASSERT(OwnsLock());
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return m_Data.end();
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}
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size_t GetLength(void) const;
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void Remove(const String& key);
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/**
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* Removes the item specified by the iterator from the dictionary.
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*
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* @param it The iterator.
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*/
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inline void Remove(Iterator it)
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{
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ASSERT(OwnsLock());
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m_Data.erase(it);
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}
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void Clear(void);
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void CopyTo(const Dictionary::Ptr& dest) const;
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Dictionary::Ptr ShallowClone(void) const;
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std::vector<String> GetKeys(void) const;
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static Object::Ptr GetPrototype(void);
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virtual Object::Ptr Clone(void) const override;
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virtual String ToString(void) const override;
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private:
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std::map<String, Value> m_Data; /**< The data for the dictionary. */
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};
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inline Dictionary::Iterator range_begin(Dictionary::Ptr x)
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{
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return x->Begin();
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}
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inline Dictionary::Iterator range_end(Dictionary::Ptr x)
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{
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return x->End();
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}
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}
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namespace boost
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{
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template<>
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struct range_mutable_iterator<icinga::Dictionary::Ptr>
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{
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typedef icinga::Dictionary::Iterator type;
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};
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template<>
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struct range_const_iterator<icinga::Dictionary::Ptr>
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{
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typedef icinga::Dictionary::Iterator type;
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};
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}
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#endif /* DICTIONARY_H */
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