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[cooja/serialsocket] SerialSocketServer: Allow only a single client,

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This commit is contained in:
Enrico Joerns 2014-04-13 21:36:38 +02:00
parent a18a7fa717
commit b31818521d
1 changed files with 37 additions and 13 deletions
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46
tools/cooja/apps/serial_socket/java/org/contikios/cooja/serialsocket/SerialSocketServer.java
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@ -1,6 +1,7 @@
package org.contikios.cooja.serialsocket;
/*
* Copyright (c) 2014, TU Braunschweig.
* Copyright (c) 2010, Swedish Institute of Computer Science.
* All rights reserved.
*
@ -80,6 +81,7 @@ import org.contikios.cooja.interfaces.SerialPort;
* Socket to simulated serial port forwarder. Server version.
*
* @author Fredrik Osterlind
* @author Enrico Jorns
*/
@ClassDescription("Serial Socket (SERVER)")
@PluginType(PluginType.MOTE_PLUGIN)
@ -101,11 +103,12 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
private JLabel socketToMoteLabel;
private JLabel moteToSocketLabel;
private JLabel socketStatusLabel;
private JFormattedTextField serverPortField;
private JButton serverStartButton;
private int inBytes = 0, outBytes = 0;
private ServerSocket server;
private ServerSocket serverSocket;
private Socket clientSocket;
private DataInputStream in;
private DataOutputStream out;
@ -135,14 +138,17 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
JLabel label = new JLabel("Listen port: ");
c.gridx = 0;
c.gridy = 0;
c.weightx = 0.1;
c.anchor = GridBagConstraints.EAST;
socketPanel.add(label, c);
NumberFormat nf = NumberFormat.getIntegerInstance();
nf.setGroupingUsed(false);
final JFormattedTextField serverPortField = new JFormattedTextField(new NumberFormatter(nf));
serverPortField = new JFormattedTextField(new NumberFormatter(nf));
serverPortField.setColumns(5);
serverPortField.setText(String.valueOf(SERVER_DEFAULT_PORT));
c.gridx++;
c.weightx = 0.0;
socketPanel.add(serverPortField, c);
serverStartButton = new JButton("Start");
@ -205,7 +211,7 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
label = new JLabel("Status: ");
statusBarPanel.add(label);
socketStatusLabel = new JLabel("Not started");
socketStatusLabel = new JLabel("Idle");
socketStatusLabel.setForeground(Color.DARK_GRAY);
statusBarPanel.add(socketStatusLabel);
@ -246,6 +252,7 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
socketStatusLabel.setForeground(COLOR_NEUTRAL);
socketStatusLabel.setText("Listening on port " + String.valueOf(port));
serverStartButton.setEnabled(false);
serverPortField.setEnabled(false);
}
});
}
@ -268,8 +275,11 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
@Override
public void run() {
// XXX check why needed
if (serverSocket != null) {
socketStatusLabel.setForeground(COLOR_NEUTRAL);
socketStatusLabel.setText("Listening on port " + String.valueOf(server.getLocalPort()));
socketStatusLabel.setText("Listening on port " + String.valueOf(serverSocket.getLocalPort()));
}
}
});
}
@ -281,6 +291,7 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
@Override
public void run() {
serverStartButton.setEnabled(true);
serverPortField.setEnabled(true);
socketStatusLabel.setForeground(COLOR_NEUTRAL);
socketStatusLabel.setText("Idle");
}
@ -300,7 +311,6 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
}
});
}
}
@ -355,7 +365,7 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
*/
public void startServer(int port) {
try {
server = new ServerSocket(port);
serverSocket = new ServerSocket(port);
logger.info("Listening on port: " + port);
notifyServerStarted(port);
} catch (IOException ex) {
@ -367,10 +377,20 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
new Thread() {
@Override
public void run() {
while (!server.isClosed()) {
while (!serverSocket.isClosed()) {
try {
// wait for next client
clientSocket = server.accept();
Socket candidateSocket = serverSocket.accept();
// reject connection if already one client connected
if (clientSocket != null && !clientSocket.isClosed()) {
logger.info("Refused connection of client " + candidateSocket.getInetAddress());
candidateSocket.close();
continue;
}
clientSocket = candidateSocket;
in = new DataInputStream(clientSocket.getInputStream());
out = new DataOutputStream(clientSocket.getOutputStream());
out.flush();
@ -405,7 +425,7 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
} catch (IOException e) {
logger.fatal("Listening thread shut down: " + e.getMessage());
try {
server.close();
serverSocket.close();
} catch (IOException ex) {
logger.error(ex);
}
@ -486,13 +506,17 @@ public class SerialSocketServer extends VisPlugin implements MotePlugin {
}
private boolean closed = false;
@Override
public void closePlugin() {
closed = true;
cleanupClient();
try {
server.close();
} catch (IOException e) {
if (serverSocket != null) {
serverSocket.close();
}
} catch (IOException ex) {
logger.error(ex);
}
}