icinga2/lib/ido/dbtype.h

109 lines
3.3 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of the GNU General Public License *
* as published by the Free Software Foundation; either version 2 *
* of the License, or (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef DBTYPE_H
#define DBTYPE_H
#include "base/object.h"
#include "base/registry.h"
#include "ido/dbobject.h"
namespace icinga
{
/**
* A database object type.
*
* @ingroup ido
*/
struct DbType : public Object
{
public:
DECLARE_PTR_TYPEDEFS(DbType);
typedef boost::function<DbObject::Ptr (const String&, const String&)> ObjectFactory;
typedef std::map<String, DbType::Ptr, string_iless> TypeMap;
typedef std::map<std::pair<String, String>, DbObject::Ptr, pair_string_iless> ObjectMap;
DbType(const String& name, const String& table, long tid, const ObjectFactory& factory);
String GetName(void) const;
String GetTable(void) const;
long GetTypeID(void) const;
static void RegisterType(const DbType::Ptr& type);
static DbType::Ptr GetByName(const String& name);
static DbType::Ptr GetByID(long tid);
DbObject::Ptr GetOrCreateObjectByName(const String& name1, const String& name2);
private:
String m_Name;
String m_Table;
long m_TypeID;
ObjectFactory m_ObjectFactory;
static boost::mutex m_StaticMutex;
static TypeMap& GetTypes(void);
ObjectMap& GetObjects(void);
};
/**
* A registry for DbType objects.
*
* @ingroup ido
*/
class DbTypeRegistry : public Registry<DbType::Ptr>
{ };
/**
* Helper class for registering DynamicObject implementation classes.
*
* @ingroup ido
*/
class RegisterDbTypeHelper
{
public:
RegisterDbTypeHelper(const String& name, const String& table, long tid, const DbType::ObjectFactory& factory)
{
DbType::Ptr dbtype = boost::make_shared<DbType>(name, table, tid, factory);
DbType::RegisterType(dbtype);
}
};
/**
* Factory function for DbObject-based classes.
*
* @ingroup ido
*/
template<typename T>
shared_ptr<T> DbObjectFactory(const String& name1, const String& name2)
{
return boost::make_shared<T>(name1, name2);
}
#define REGISTER_DBTYPE(name, table, tid, type) \
I2_EXPORT icinga::RegisterDbTypeHelper g_RegisterDBT_ ## type(name, table, tid, DbObjectFactory<type>);
}
#endif /* DBTYPE_H */