icinga2/lib/base/dynamicobject.h

139 lines
4.7 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 DYNAMICOBJECT_H
#define DYNAMICOBJECT_H
#include "base/i2-base.h"
#include "base/attribute.h"
#include "base/object.h"
#include "base/dictionary.h"
#include <boost/signals2.hpp>
#include <map>
#include <set>
namespace icinga
{
class DynamicType;
/**
* A dynamic object that can be instantiated from the configuration file
* and that supports attribute replication to remote application instances.
*
* @ingroup base
*/
class I2_BASE_API DynamicObject : public Object
{
public:
typedef shared_ptr<DynamicObject> Ptr;
typedef weak_ptr<DynamicObject> WeakPtr;
typedef std::map<String, AttributeHolder, string_iless> AttributeMap;
typedef AttributeMap::iterator AttributeIterator;
typedef AttributeMap::const_iterator AttributeConstIterator;
~DynamicObject(void);
static void Initialize(void);
Dictionary::Ptr BuildUpdate(double sinceTx, int attributeTypes) const;
void ApplyUpdate(const Dictionary::Ptr& serializedUpdate, int allowedTypes);
void RegisterAttribute(const String& name, AttributeType type, AttributeBase *boundAttribute = NULL);
void Set(const String& name, const Value& data);
void Touch(const String& name);
Value Get(const String& name) const;
void BindAttribute(const String& name, Value *boundValue);
void ClearAttributesByType(AttributeType type);
static boost::signals2::signal<void (const DynamicObject::Ptr&)> OnRegistered;
static boost::signals2::signal<void (const DynamicObject::Ptr&)> OnUnregistered;
static boost::signals2::signal<void (double, const std::set<DynamicObject::WeakPtr>&)> OnTransactionClosing;
static boost::signals2::signal<void (double, const DynamicObject::Ptr&)> OnFlushObject;
Value InvokeMethod(const String& method, const std::vector<Value>& arguments);
shared_ptr<DynamicType> GetType(void) const;
String GetName(void) const;
bool IsLocal(void) const;
bool IsRegistered(void) const;
void SetSource(const String& value);
String GetSource(void) const;
void Flush(void);
void Register(void);
void Unregister(void);
virtual void Start(void);
virtual void Stop(void);
const AttributeMap& GetAttributes(void) const;
static DynamicObject::Ptr GetObject(const String& type, const String& name);
static void DumpObjects(const String& filename);
static void RestoreObjects(const String& filename);
static void DeactivateObjects(void);
static double GetCurrentTx(void);
protected:
explicit DynamicObject(const Dictionary::Ptr& serializedObject);
virtual void OnRegistrationCompleted(void);
virtual void OnUnregistrationCompleted(void);
virtual void OnAttributeChanged(const String& name);
private:
void InternalSetAttribute(const String& name, const Value& data, double tx, bool allowEditConfig = false);
Value InternalGetAttribute(const String& name) const;
void InternalRegisterAttribute(const String& name, AttributeType type, AttributeBase *boundAttribute = NULL);
mutable boost::mutex m_AttributeMutex;
AttributeMap m_Attributes;
std::set<String, string_iless> m_ModifiedAttributes;
double m_ConfigTx;
Attribute<String> m_Name;
Attribute<String> m_Type;
Attribute<bool> m_Local;
Attribute<String> m_Source;
Attribute<Dictionary::Ptr> m_Methods;
bool m_Registered; /**< protected by the type mutex */
static double m_CurrentTx;
static void NewTx(void);
friend class DynamicType; /* for OnRegistrationCompleted. */
};
}
#endif /* DYNAMICOBJECT_H */