ds-assignment-1/src/main/java/dslab/transfer/TransferServer.java

98 lines
3.4 KiB
Java

package dslab.transfer;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
import java.util.logging.Logger;
import at.ac.tuwien.dsg.orvell.Shell;
import dslab.ComponentFactory;
import dslab.util.Config;
public class TransferServer implements ITransferServer, Runnable {
Logger logger = Logger.getLogger(TransferServer.class.getName());
private ServerSocket serverSocket;
private Integer serverPort;
private ExecutorService executorService = Executors.newFixedThreadPool(20);
private ArrayList<Config> mailboxServers;
/**
* Creates a new server instance.
*
* @param componentId the id of the component that corresponds to the Config resource
* @param config the component config
* @param in the input stream to read console input from
* @param out the output stream to write console output to
*/
public TransferServer(String componentId, Config config, InputStream in, PrintStream out) {
Config earthPlanet = new Config("mailbox-earth-planet");
Config univerZe = new Config("mailbox-univer-ze");
mailboxServers.add(earthPlanet);
mailboxServers.add(univerZe);
Shell shell = new Shell().register("shutdown", (input, context) -> shutdown());
this.serverPort = config.getInt("tcp.port");
shell.run();
}
@Override
public void run() {
try {
logger.info("Creating serverSocket for " + this.toString());
serverSocket = new ServerSocket(serverPort);
// TODO stop server on quit command over shell
while (true) {
logger.info("Waiting for request on serverSocket " + serverSocket.toString());
try {
Socket s = serverSocket.accept();
logger.info("Processing incoming socket " + s.toString());
executorService.submit(new ClientConnection(s));
} catch (IOException ioe) {
logger.severe("Error starting serverSocket " + serverSocket.toString());
ioe.printStackTrace();
}
}
} catch (IOException e) {
logger.severe("Error creating serverSocket " + serverSocket.toString());
e.printStackTrace();
}
}
@Override
public void shutdown() {
try {
serverSocket.close();
} catch (IOException e) {
logger.severe("Error closing serverSocket " + serverSocket.toString());
e.printStackTrace();
}
executorService.shutdown();
try {
if (!executorService.awaitTermination(60, TimeUnit.SECONDS)) {
executorService.shutdownNow();
if (!executorService.awaitTermination(60, TimeUnit.SECONDS))
System.err.println("Pool did not terminate");
}
} catch (InterruptedException ie) {
executorService.shutdownNow();
Thread.currentThread().interrupt();
}
}
public static void main(String[] args) throws Exception {
ITransferServer server = ComponentFactory.createTransferServer(args[0], System.in, System.out);
server.run();
}
}