text: /* ================================================================================
  
  This file is part of the PluginFramework Open Source Project.
  
  File: plugin/PluginManager.cpp
  
  Original Author(s) of this File:
  	Dan Orban, 2015, University of Minnesota
  
  Author(s) of Significant Updates/Modifications to the File:
  	...
  
  -----------------------------------------------------------------------------------
  Copyright (c) 2015 Regents of the University of Minnesota
  All rights reserved.
  
  Redistribution and use in source and binary forms, with or without modification,
  are permitted provided that the following conditions are met:
  
  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  
  * 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.
  
  * The name of the University of Minnesota, 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.
  ================================================================================ */
  
  #include "PluginManager.h"
  #include "Plugin.h"
  #include <iostream>
  
  namespace PluginFW {
  
  PluginManager::PluginManager() : _hooks() {
  }
  
  
  PluginManager::PluginManager(std::vector<ClientHook*> hooks) : _hooks(hooks) {
  }
  
  PluginManager::~PluginManager() {
  	for (int f = 0; f < _plugins.size(); f++)
  	{
  		for (int i = 0; i < _hooks.size(); i++)
  		{
  			_plugins[f]->unregisterPlugin(_hooks[i]);
  		}
  
  		delete _plugins[f];
  	}
  
  	for (int f = 0; f < _libraries.size(); f++)
  	{
  		delete _libraries[f];
  	}
  }
  
  void PluginManager::addInterface(ClientHook* hook) {
  	_hooks.push_back(hook);
  }
  
  void PluginManager::loadPlugin(const std::string& filePath, const std::string& name) {
  #if defined(WIN32)
  	std::string path = filePath + "/bin/" + name + ".dll";
  #elif defined(__APPLE__)
  	std::string path = filePath + "/lib/lib" + name + ".dylib";
  #else
  	std::string path = filePath + "/lib/lib" + name + ".so";
  #endif
  
  	SharedLibrary* lib = new SharedLibrary(path);
  	if (lib->isLoaded())
  	{
  		typedef int version_t();
  		version_t* getVersion = lib->loadSymbol<version_t>("getPluginFWVersion");
  		if (getVersion() != getPluginFWVersion())
  		{
  			std::cerr << "Cannot load plugin: " << path << " - Incorrect framework version" << std::endl;
  			return;
  		}
  
  		typedef FrameworkPlugin* load_t();
  		load_t* loadPlugin = lib->loadSymbol<load_t>("loadFWPlugin");
  		if (loadPlugin == NULL)
  		{
  			std::cerr << "Cannot load symbol: " << "loadFWPlugin" << std::endl;
  			return;
  		}
  
  		FrameworkPlugin* plugin = loadPlugin();
  		int countRegistered = 0;
  		for (int f = 0; f < _hooks.size(); f++)
  		{
  			if (plugin->registerPlugin(_hooks[f]))
  			{
  				countRegistered++;
  			}
  		}
  
  		if (countRegistered > 0)
  		{
  			_plugins.push_back(plugin);
  			_libraries.push_back(lib);
  		}
  		else
  		{
  			delete plugin;
  			delete lib;
  		}
  
  	}
  }
  
  } /* namespace extend */
  