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/*
* Copyright (c) 2011-2015, Intel 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.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* 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 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
*/
#pragma once
#include "ConfigurableElement.h"
#include "SubsystemPlugins.h"
#include "Results.h"
#include <log/Logger.h>
#include <list>
#include <string>
#include <memory>
class CSubsystemLibrary;
class DynamicLibrary;
class CSystemClass final : public CConfigurableElement
{
public:
/**
* @param[in] logger the logger provided by the client
* it need to be given to the subsystem library
*/
CSystemClass(core::log::Logger &logger);
~CSystemClass() override;
/** Load subsystem plugin and fill the corresponding libraries.
*
* @param[out] strError is filled with new line separated errors if the function returns false,
* undefined otherwise.
* @param[in] pSubsystemPlugins The plugins to load.
* @param[in] bVirtualSubsystemFallback If a subsystem can not be found, use the virtual one.
*
* @return true if the plugins succesfully started or that a fallback is available,
false otherwise.
*/
bool loadSubsystems(std::string &strError, const CSubsystemPlugins *pSubsystemPlugins,
bool bVirtualSubsystemFallback = false);
// Subsystem factory
const CSubsystemLibrary *getSubsystemLibrary() const;
/**
* Look for subsystems that need to be resynchronized.
* Consume the need to be resynchronized
* and fill a syncer set with all syncers that need to be resynchronized
*
* @param[out] syncerSet The syncer set to fill
* @param[out] infos Relevant informations client may want to log
*/
void checkForSubsystemsToResync(CSyncerSet &syncerSet, core::Results &infos);
/**
* Reset subsystems need to resync flag.
*/
void cleanSubsystemsNeedToResync();
// base
std::string getKind() const override;
bool getMappingData(const std::string &strKey, const std::string *&pStrValue) const override;
std::string getFormattedMapping() const override;
private:
CSystemClass(const CSystemClass &);
CSystemClass &operator=(const CSystemClass &);
// base
bool childrenAreDynamic() const override;
/** Load shared libraries subsystem plugins.
*
* @param[out] errors is the list of error that occured during loadings.
* @param[in] pSubsystemPlugins The plugins to load.
*
* @return true if all plugins have been succesfully loaded, false otherwises.
*/
bool loadSubsystemsFromSharedLibraries(core::Results &errors,
const CSubsystemPlugins *pSubsystemPlugins);
/** Load subsystem plugin shared libraries.
*
* @param[in,out] lstrPluginFiles is the path list of the plugins shared libraries to load.
* Successfully loaded plugins are removed from the list.
* @param[out] errors is the list of error that occured during loadings.
*
* @return true if at least one plugin has been succesfully loaded, false otherwise.
* When false is returned, some plugins MIHGT have been loaded
* but the lstrPluginFiles is accurate.
*/
bool loadPlugins(std::list<std::string> &lstrPluginFiles, core::Results &errors);
// Subsystem factory
CSubsystemLibrary *_pSubsystemLibrary;
std::list<std::unique_ptr<DynamicLibrary>>
_subsystemLibraryHandleList; /**< Contains the list of all open plugin libs. */
/** Application Logger we need to provide to plugins */
core::log::Logger &_logger;
/** The entry point symbol that must be implemented by plugins
*/
static const char entryPointSymbol[];
};