mirror of https://github.com/Icinga/icinga2.git
113 lines
3.6 KiB
C++
113 lines
3.6 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012 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 DBTYPE_H
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#define DBTYPE_H
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#include "base/object.h"
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#include "base/registry.h"
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#include <boost/smart_ptr/make_shared.hpp>
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namespace icinga
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{
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class DbObject;
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/**
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* A database object type.
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*
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* @ingroup ido
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*/
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class DbType : public Object
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{
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public:
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DECLARE_PTR_TYPEDEFS(DbType);
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typedef boost::function<boost::shared_ptr<DbObject> (const boost::shared_ptr<DbType>&, const String&, const String&)> ObjectFactory;
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typedef std::map<String, DbType::Ptr, string_iless> TypeMap;
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typedef std::map<std::pair<String, String>, boost::shared_ptr<DbObject>, pair_string_iless> ObjectMap;
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DbType(const String& name, const String& table, long tid, const String& idcolumn, const ObjectFactory& factory);
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String GetName(void) const;
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String GetTable(void) const;
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long GetTypeID(void) const;
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String GetIDColumn(void) const;
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static void RegisterType(const DbType::Ptr& type);
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static DbType::Ptr GetByName(const String& name);
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static DbType::Ptr GetByID(long tid);
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boost::shared_ptr<DbObject> GetOrCreateObjectByName(const String& name1, const String& name2);
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private:
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String m_Name;
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String m_Table;
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long m_TypeID;
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String m_IDColumn;
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ObjectFactory m_ObjectFactory;
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static boost::mutex m_StaticMutex;
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static TypeMap& GetTypes(void);
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ObjectMap& GetObjects(void);
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};
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/**
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* A registry for DbType objects.
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*
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* @ingroup ido
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*/
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class DbTypeRegistry : public Registry<DbType::Ptr>
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{ };
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/**
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* Helper class for registering DynamicObject implementation classes.
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*
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* @ingroup ido
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*/
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class RegisterDbTypeHelper
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{
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public:
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RegisterDbTypeHelper(const String& name, const String& table, long tid, const String& idcolumn, const DbType::ObjectFactory& factory)
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{
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DbType::Ptr dbtype = boost::make_shared<DbType>(name, table, tid, idcolumn, factory);
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DbType::RegisterType(dbtype);
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}
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};
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/**
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* Factory function for DbObject-based classes.
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*
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* @ingroup ido
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*/
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template<typename T>
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shared_ptr<T> DbObjectFactory(const DbType::Ptr& type, const String& name1, const String& name2)
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{
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return boost::make_shared<T>(type, name1, name2);
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}
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#define REGISTER_DBTYPE(name, table, tid, idcolumn, type) \
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I2_EXPORT icinga::RegisterDbTypeHelper g_RegisterDBT_ ## name(#name, table, tid, idcolumn, DbObjectFactory<type>);
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}
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#endif /* DBTYPE_H */
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