public void run() { // start a new thread
// this thread has one task. It repeatedly reads from the input pipe
// and writes modified data to the output pipe. This is the heart
// of the command station simulation.
if (log.isDebugEnabled()) {
log.debug("Simulator Thread Started");
}
Random rgen = new Random();
ConnectionStatus.instance()
.setConnectionState(this.getCurrentPortName(), ConnectionStatus.CONNECTION_UP);
for (; ; ) {
DCCppMessage m = readMessage();
if (log.isDebugEnabled()) {
log.debug("Simulator Thread received message " + m.toString());
}
DCCppReply r = generateReply(m);
// If generateReply() returns null, do nothing. No reply to send.
if (r != null) {
writeReply(r);
if (log.isDebugEnabled()) {
log.debug("Simulator Thread sent Reply" + r.toString());
}
}
// Once every SENSOR_MSG_RATE loops, generate a random Sensor message.
int rand = rgen.nextInt(SENSOR_MSG_RATE);
if (rand == 1) {
generateRandomSensorReply();
}
}
}
public DataOutputStream getOutputStream() {
if (pout == null) {
log.error("getOutputStream called before load(), stream not available");
ConnectionStatus.instance()
.setConnectionState(this.getCurrentPortName(), ConnectionStatus.CONNECTION_DOWN);
}
return pout;
}
protected void buildLine(ConnectionConfig conn, JLabel cs, JPanel pane) {
if (conn.name().equals(JmrixConfigPane.NONE)) {
cs.setText(" ");
return;
}
ConnectionStatus.instance().addConnection(conn.name(), conn.getInfo());
cs.setFont(pane.getFont());
updateLine(conn, cs);
pane.add(cs);
}
// readMessage reads one incoming message from the buffer
// and sets outputBufferEmpty to true.
private DCCppMessage readMessage() {
DCCppMessage msg = null;
try {
msg = loadChars();
} catch (java.io.IOException e) {
// should do something meaningful here.
ConnectionStatus.instance()
.setConnectionState(this.getCurrentPortName(), ConnectionStatus.CONNECTION_DOWN);
}
setOutputBufferEmpty(true);
return (msg);
}
private void writeReply(DCCppReply r) {
int i;
int len = r.getLength(); // opCode+Nbytes+ECC
// If r == null, there is no reply to be sent.
try {
outpipe.writeByte((byte) '<');
for (i = 0; i < len; i++) {
outpipe.writeByte((byte) r.getElement(i));
}
outpipe.writeByte((byte) '>');
} catch (java.io.IOException ex) {
ConnectionStatus.instance()
.setConnectionState(this.getCurrentPortName(), ConnectionStatus.CONNECTION_DOWN);
}
}
/**
* Fill in the logo and status panel
*
* @return Properly-filled out JPanel
*/
protected JPanel statusPanel() {
JPanel pane1 = new JPanel();
pane1.setLayout(new BoxLayout(pane1, BoxLayout.X_AXIS));
log.debug("Fetch main logo: {}", logo());
pane1.add(
new JLabel(
new ImageIcon(
getToolkit().getImage(FileUtil.findURL(logo(), FileUtil.Location.INSTALLED)),
"JMRI logo"),
JLabel.LEFT));
pane1.add(
Box.createRigidArea(new Dimension(15, 0))); // Some spacing between logo and status panel
log.debug("start labels");
JPanel pane2 = new JPanel();
pane2.setLayout(new BoxLayout(pane2, BoxLayout.Y_AXIS));
pane2.add(new JLabel(line1()));
pane2.add(new JLabel(line2()));
pane2.add(new JLabel(line3()));
pane2.add(
new JLabel(
Bundle.getMessage(
"ActiveProfile", ProfileManager.getDefault().getActiveProfile().getName())));
// add listerner for Com port updates
ConnectionStatus.instance().addPropertyChangeListener(this);
int i = 0;
for (ConnectionConfig conn : InstanceManager.getDefault(ConnectionConfigManager.class)) {
if (!conn.getDisabled()) {
connection[i] = conn;
i++;
}
if (i > 3) {
break;
}
}
buildLine4(pane2);
buildLine5(pane2);
buildLine6(pane2);
buildLine7(pane2);
pane2.add(new JLabel(line8()));
pane2.add(new JLabel(line9()));
pane1.add(pane2);
return pane1;
}
@Override
public void receiveLoop() {
log.debug("receiveLoop starts");
ObjectReader reader = this.mapper.reader();
while (true) {
try {
JsonNode root = reader.readTree(this.istream);
String type = root.path(TYPE).asText();
JsonNode data = root.path(DATA);
log.debug("Processing {} with {}", type, data);
if (type.equals(GOODBYE)) {
log.info("Connection closing from server.");
break;
} else if (type.equals(HELLO)) {
this.receiveHello(data);
} else if (type.equals(LOCALE)) {
this.receiveHello(data);
} else if (type.equals(PONG)) {
// silently ignore
} else if (!data.isMissingNode() || (root.isArray() && ((ArrayNode) root).size() > 0)) {
// process replies with a data node or non-empty arrays
JsonClientReply reply = new JsonClientReply(root);
Runnable r = new RcvNotifier(reply, mLastSender, this);
try {
SwingUtilities.invokeAndWait(r);
} catch (InterruptedException e) {
log.error("Exception notifying listeners of reply: {}", e.getMessage(), e);
} catch (InvocationTargetException e) {
log.error("Exception notifying listeners of reply: {}", e.getMessage(), e);
}
}
} catch (IOException e) {
this.rcvException = true;
reportReceiveLoopException(e);
break;
} catch (NoSuchElementException nse) {
// we get an NSE when we are finished with this client
// so break out of the loop
break;
}
}
ConnectionStatus.instance()
.setConnectionState(this.controller.getCurrentPortName(), ConnectionStatus.CONNECTION_DOWN);
log.error("Exit from rcv loop");
this.recovery();
}
protected void updateLine(ConnectionConfig conn, JLabel cs) {
if (conn.getDisabled()) {
return;
}
String name = conn.getConnectionName();
if (name == null) {
name = conn.getManufacturer();
}
if (ConnectionStatus.instance().isConnectionOk(conn.getInfo())) {
cs.setForeground(Color.black);
String cf = Bundle.getMessage("ConnectionSucceeded", name, conn.name(), conn.getInfo());
cs.setText(cf);
} else {
cs.setForeground(Color.red);
String cf = Bundle.getMessage("ConnectionFailed", name, conn.name(), conn.getInfo());
cf = cf.toUpperCase();
cs.setText(cf);
}
this.revalidate();
}
