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DashboardServer.java
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DashboardServer.java
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package reposense.system;
import java.awt.Desktop;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.nio.file.Path;
import java.util.logging.Level;
import java.util.logging.Logger;
import net.freeutils.httpserver.HTTPServer;
/**
* Handles starting of the server to display the dashboard.
*/
public class DashboardServer {
private static final String LOCAL_HOST_URL = "http://localhost:%s/";
private static final Logger logger = LogsManager.getLogger(DashboardServer.class);
/**
* Starts a server at {@code port} and loads the {@code requestPath} from the local disk.
*/
public static void startServer(int port, Path requestPath) {
logger.info("Starting a server at port " + port + "...");
HTTPServer server = new HTTPServer(port);
// default virtual host
HTTPServer.VirtualHost host = server.getVirtualHost(null);
try {
// a handler to process the request and give the corresponding response
host.addContext("/", new HTTPServer.FileContextHandler(requestPath.toFile()));
server.start();
launchBrowser(String.format(LOCAL_HOST_URL, port));
logger.info("Press Ctrl + C or equivalent to stop the server");
} catch (IOException ioe) {
logger.log(Level.SEVERE, ioe.getMessage(), ioe);
}
}
/**
* Launches the default browser with {@code url}.
*/
private static void launchBrowser(String url) throws IOException {
try {
if (Desktop.isDesktopSupported()) {
Desktop.getDesktop().browse(new URI(url));
logger.info("Loading " + url + " on the default browser...");
} else {
logger.severe("Browser could not be launched. Please refer to the user guide to"
+ " manually view the dashboard");
}
} catch (URISyntaxException ue) {
logger.log(Level.SEVERE, ue.getMessage(), ue);
}
}
}