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SampleServer.cpp
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//
// SampleServer.cpp
//
// This sample demonstrates the ServerApplication class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// SPDX-License-Identifier: BSL-1.0
//
#include "Poco/Util/ServerApplication.h"
#include "Poco/Util/Option.h"
#include "Poco/Util/OptionSet.h"
#include "Poco/Util/HelpFormatter.h"
#include "Poco/Task.h"
#include "Poco/TaskManager.h"
#include "Poco/DateTimeFormatter.h"
#include <iostream>
using Poco::Util::Application;
using Poco::Util::ServerApplication;
using Poco::Util::Option;
using Poco::Util::OptionSet;
using Poco::Util::OptionCallback;
using Poco::Util::HelpFormatter;
using Poco::Task;
using Poco::TaskManager;
using Poco::DateTimeFormatter;
class SampleTask: public Task
{
public:
SampleTask(): Task("SampleTask")
{
}
void runTask()
{
Application& app = Application::instance();
while (!sleep(5000))
{
Application::instance().logger().information("busy doing nothing... " + DateTimeFormatter::format(app.uptime()));
}
}
};
class SampleServer: public ServerApplication
{
public:
SampleServer(): _helpRequested(false)
{
}
~SampleServer()
{
}
protected:
void initialize(Application& self)
{
loadConfiguration(); // load default configuration files, if present
ServerApplication::initialize(self);
logger().information("starting up");
}
void uninitialize()
{
logger().information("shutting down");
ServerApplication::uninitialize();
}
void defineOptions(OptionSet& options)
{
ServerApplication::defineOptions(options);
options.addOption(
Option("help", "h", "display help information on command line arguments")
.required(false)
.repeatable(false)
.callback(OptionCallback<SampleServer>(this, &SampleServer::handleHelp)));
}
void handleHelp(const std::string& name, const std::string& value)
{
_helpRequested = true;
displayHelp();
stopOptionsProcessing();
}
void displayHelp()
{
HelpFormatter helpFormatter(options());
helpFormatter.setCommand(commandName());
helpFormatter.setUsage("OPTIONS");
helpFormatter.setHeader("A sample server application that demonstrates some of the features of the Util::ServerApplication class.");
helpFormatter.format(std::cout);
}
int main(const ArgVec& args)
{
if (!_helpRequested)
{
TaskManager tm;
tm.start(new SampleTask);
waitForTerminationRequest();
tm.cancelAll();
tm.joinAll();
}
return Application::EXIT_OK;
}
private:
bool _helpRequested;
};
POCO_SERVER_MAIN(SampleServer)