/*-
* Copyright (c) 2013 Spectra Logic Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* Authors: Justin T. Gibbs (Spectra Logic Corporation)
*
* $FreeBSD$
*/
/**
* \file devdctl_event_factory.h
*/
#ifndef _DEVDCTL_EVENT_FACTORY_H_
#define _DEVDCTL_EVENT_FACTORY_H_
/*============================ Namespace Control =============================*/
namespace DevdCtl
{
/*============================= Class Definitions ============================*/
/*------------------------------- EventFactory -------------------------------*/
/**
* \brief Container for "event type" => "event object" creation methods.
*/
class EventFactory
{
public:
/**
* Event creation handlers are matched by event type and a
* string representing the system emitting the event.
*/
typedef std::pair<Event::Type, std::string> Key;
/** Map type for Factory method lookups. */
typedef std::map<Key, Event::BuildMethod *> Registry;
/** Table record of factory methods to add to our registry. */
struct Record
{
Event::Type m_type;
const char *m_subsystem;
Event::BuildMethod *m_buildMethod;
};
const Registry &GetRegistry() const;
Event *Build(Event::Type type, NVPairMap &nvpairs,
const std::string eventString) const;
EventFactory(Event::BuildMethod *defaultBuildMethod = NULL);
void UpdateRegistry(Record regEntries[], size_t numEntries);
protected:
/** Registry of event factory methods providing O(log(n)) lookup. */
Registry m_registry;
Event::BuildMethod *m_defaultBuildMethod;
};
inline const EventFactory::Registry &
EventFactory::GetRegistry() const
{
return (m_registry);
}
} // namespace DevdCtl
#endif /*_DEVDCTL_EVENT_FACTORY_H_ */
