int main(int /*argc*/, char** /*argv*/)
{
char cmd[256];
std::vector<std::string> availableModules = GetExampleModules();
/* module path -> lib handle */
std::map<std::string, SharedLibrary> libraryHandles;
SharedLibrary sharedLib(LIB_PATH, "");
std::cout << "> ";
while(std::cin.getline(cmd, sizeof(cmd)))
{
std::string strCmd(cmd);
if (strCmd == "q")
{
break;
}
else if (strCmd == "h")
{
std::cout << std::left << std::setw(15) << "h" << " This help text\n"
<< std::setw(15) << "l <id | name>" << " Load the module with id <id> or name <name>\n"
<< std::setw(15) << "u <id>" << " Unload the module with id <id>\n"
<< std::setw(15) << "s" << " Print status information\n"
<< std::setw(15) << "q" << " Quit\n" << std::flush;
}
else if (strCmd.find("l ") != std::string::npos)
{
std::string idOrName;
idOrName.assign(strCmd.begin()+2, strCmd.end());
std::stringstream ss(idOrName);
long int id = -1;
ss >> id;
if (id > 0)
{
Module* module = ModuleRegistry::GetModule(id);
if (!module)
{
std::cout << "Error: unknown id" << std::endl;
}
else if (module->IsLoaded())
{
std::cout << "Info: module already loaded" << std::endl;
}
else
{
try
{
std::map<std::string, SharedLibrary>::iterator libIter =
libraryHandles.find(module->GetLocation());
if (libIter != libraryHandles.end())
{
libIter->second.Load();
}
else
{
// The module has been loaded previously due to a
// linker dependency
SharedLibrary libHandle(module->GetLocation());
libHandle.Load();
libraryHandles.insert(std::make_pair(libHandle.GetFilePath(), libHandle));
}
}
catch (const std::exception& e)
{
std::cout << e.what() << std::endl;
}
}
}
else
{
Module* module = ModuleRegistry::GetModule(idOrName);
if (!module)
{
try
{
std::map<std::string, SharedLibrary>::iterator libIter =
libraryHandles.find(sharedLib.GetFilePath(idOrName));
if (libIter != libraryHandles.end())
{
libIter->second.Load();
}
else
{
bool libFound = false;
for (std::vector<std::string>::const_iterator availableModuleIter = availableModules.begin();
availableModuleIter != availableModules.end(); ++availableModuleIter)
{
if (*availableModuleIter == idOrName)
{
libFound = true;
}
}
if (!libFound)
{
std::cout << "Error: unknown example module" << std::endl;
}
else
{
SharedLibrary libHandle(LIB_PATH, idOrName);
libHandle.Load();
libraryHandles.insert(std::make_pair(libHandle.GetFilePath(), libHandle));
}
}
std::vector<Module*> modules = ModuleRegistry::GetModules();
for (std::vector<Module*>::const_iterator moduleIter = modules.begin();
moduleIter != modules.end(); ++moduleIter)
{
availableModules.erase(std::remove(availableModules.begin(), availableModules.end(), (*moduleIter)->GetName()),
availableModules.end());
}
}
catch (const std::exception& e)
{
std::cout << e.what() << std::endl;
}
}
else if (!module->IsLoaded())
{
try
{
const std::string modulePath = module->GetLocation();
std::map<std::string, SharedLibrary>::iterator libIter =
libraryHandles.find(modulePath);
if (libIter != libraryHandles.end())
{
libIter->second.Load();
}
else
{
SharedLibrary libHandle(LIB_PATH, idOrName);
libHandle.Load();
libraryHandles.insert(std::make_pair(libHandle.GetFilePath(), libHandle));
}
}
catch (const std::exception& e)
{
std::cout << e.what() << std::endl;
}
}
else if (module)
{
std::cout << "Info: module already loaded" << std::endl;
}
}
}
else if (strCmd.find("u ") != std::string::npos)
void PluginManager::init() {
static const std::string plugin_config_file("./plugins.xml");
std::string current_path = directory_conf();
std::string full_path = current_path + "/" + plugin_config_file;
BOOST_LOG_TRIVIAL(trace) << "Loading plugin configuration file from "
<< full_path;
try {
read_xml(full_path, _pt);
} catch (...) {
BOOST_LOG_TRIVIAL(error) << "Can not load configuration file from "
<< full_path;
return;
}
// iterate configuration for configured plugins
BOOST_LOG_TRIVIAL(trace) << "Target load plugins...";
for (pt::ptree::value_type &node : _pt.get_child("plugins")) {
if (node.first == "plugin") {
std::string name(node.second.get<std::string>("name"));
std::string path(current_path + "/" +
node.second.get<std::string>("path"));
BOOST_LOG_TRIVIAL(trace) << "Module Name: " << name
<< " Module Path: " << path;
SharedLibrary libHandle(path, name);
BOOST_LOG_TRIVIAL(trace) << "Loading library " << libHandle.GetFilePath();
try {
libHandle.Load();
} catch (...) {
BOOST_LOG_TRIVIAL(error) << "Error when loading plugin library " << path
<< name;
}
}
}
// iterate to every module and get service references
std::vector<Module *> modules = ModuleRegistry::GetModules();
BOOST_LOG_TRIVIAL(trace) << "Print existing plugins... ";
for (Module *module : modules) {
BOOST_LOG_TRIVIAL(trace)
<< "Module Name: " << module->GetName()
<< " Module ID: " << module->GetModuleId()
<< " Status: " << (module->IsLoaded() ? "LOADED" : "UNLOADED");
if (module->IsLoaded()) {
ModuleContext *context = module->GetModuleContext();
std::vector<ServiceReference<IoTInfoProvider>> services =
context->GetServiceReferences<IoTInfoProvider>(
"(type=IoTInfoProvider)");
BOOST_LOG_TRIVIAL(trace) << "Find " << services.size()
<< " provider references";
for (ServiceReference<IoTInfoProvider> &value : services) {
IoTInfoProvider *provider = context->GetService<IoTInfoProvider>(value);
if (std::find(this->begin(), this->end(), provider) == this->end()) {
this->push_back(provider);
}
}
}
}
BOOST_LOG_TRIVIAL(trace) << "Total " << this->size() << " providers loaded";
}