/** Start talking to the server */
public void start() {
String codehost = getCodeBase().getHost();
if (socket == null) {
try {
// Open the socket to the server
socket = new Socket(codehost, port);
// Create output stream
out = new ObjectOutputStream(socket.getOutputStream());
out.flush();
// Create input stream and start background
// thread to read data from the server
in = new ObjectInputStream(socket.getInputStream());
new Thread(this).start();
} catch (Exception e) {
// Exceptions here are unexpected, but we can't
// really do anything (so just write it to stdout
// in case someone cares and then ignore it)
System.out.println("Exception! " + e.toString());
e.printStackTrace();
setErrorStatus(STATUS_NOCONNECT);
socket = null;
}
} else {
// Already started
}
if (socket != null) {
// Make sure the right buttons are enabled
start_button.setEnabled(false);
stop_button.setEnabled(true);
setStatus(STATUS_ACTIVE);
}
}
// **********************************************************************************
//
// Theoretically, you shouldn't have to alter anything below this point in this file
// unless you want to change the color of your agent
//
// **********************************************************************************
public void getConnected(String args[]) {
try {
// initial connection
int port = 3000 + Integer.parseInt(args[1]);
s = new Socket(args[0], port);
sout = new PrintWriter(s.getOutputStream(), true);
sin = new BufferedReader(new InputStreamReader(s.getInputStream()));
// read in the map of the world
numNodes = Integer.parseInt(sin.readLine());
int i, j;
for (i = 0; i < numNodes; i++) {
world[i] = new node();
String[] buf = sin.readLine().split(" ");
world[i].posx = Double.valueOf(buf[0]);
world[i].posy = Double.valueOf(buf[1]);
world[i].numLinks = Integer.parseInt(buf[2]);
// System.out.println(world[i].posx + ", " + world[i].posy);
for (j = 0; j < 4; j++) {
if (j < world[i].numLinks) {
world[i].links[j] = Integer.parseInt(buf[3 + j]);
// System.out.println("Linked to: " + world[i].links[j]);
} else world[i].links[j] = -1;
}
}
currentNode = Integer.parseInt(sin.readLine());
String myinfo =
args[2] + "\n" + "0.7 0.45 0.45\n"; // name + rgb values; i think this is color is pink
// send the agents name and color
sout.println(myinfo);
} catch (IOException e) {
System.out.println(e);
}
}
/** Stop talking to the server */
public void stop() {
if (socket != null) {
// Close all the streams and socket
if (out != null) {
try {
out.close();
} catch (IOException ioe) {
}
out = null;
}
if (in != null) {
try {
in.close();
} catch (IOException ioe) {
}
in = null;
}
if (socket != null) {
try {
socket.close();
} catch (IOException ioe) {
}
socket = null;
}
} else {
// Already stopped
}
// Make sure the right buttons are enabled
start_button.setEnabled(true);
stop_button.setEnabled(false);
setStatus(STATUS_STOPPED);
}
public ClientThread(Socket socket, History history, Users users) throws IOException {
logger.warn("New client is trying to connect to the chat...");
logger.info("Assigning a socket to a new client...");
this.s = socket;
logger.info("Getting the input stream...");
in = new DataInputStream(s.getInputStream());
logger.info("Getting the output stream...");
out = new DataOutputStream(s.getOutputStream());
this.users = users;
users.addObserver(this);
this.history = history;
start();
logger.warn("Connection with new user is established.");
}
public void run() {
try {
prepareClient();
logger.info("Starting normal session with " + getClientName());
while (true) {
this.receive();
}
} catch (IOException ioe) {
logger.warn("Client " + this + " has been disconnected.");
this.setDisabled(true);
users.remove(this);
} finally {
try {
if (s != null && !s.isClosed()) {
s.close();
logger.warn("Socket with " + this + " has been closed.");
}
} catch (IOException ioe) {
logger.error("Socket has not been closed.", ioe);
}
}
}
public void run() {
try {
Socket s = serverSock.accept();
InputStream in = s.getInputStream();
byte b[] = new byte[4096];
// assume we read the entire http request
// (bad assumption but okay for test case)
int nread = in.read(b);
// check the date format by the position of the comma
String request = new String(b, 0, nread);
int pos = request.indexOf("If-Modified-Since:");
int respCode = 200;
if (pos != -1) {
pos += "If-Modified-Since:".length() + 4;
if (pos < nread) {
if (request.charAt(pos) == (char) ',') {
respCode = 304;
}
}
}
OutputStream o = s.getOutputStream();
if (respCode == 304) {
o.write("HTTP/1.1 304 Not Modified".getBytes());
} else {
o.write("HTTP/1.1 200 OK".getBytes());
}
o.write((byte) '\r');
o.write((byte) '\n');
o.write((byte) '\r');
o.write((byte) '\n');
o.flush();
} catch (Exception e) {
}
}
public Duder(String args[]) {
getConnected(args);
play();
try {
sin.close();
sout.close();
s.close();
} catch (IOException e) {
System.out.println(e);
}
}
private void prepareClient() throws IOException {
logger.info("Waiting for client's name");
Message mes = Operations.receive(in);
setClientName((String) mes.getValue());
logger.info("Username for " + s.getInetAddress() + " received: " + userName);
users.add(this);
logger.info("User " + getClientName() + " has been added to the userlist.");
messages = new Messages();
logger.info("Message list created");
if (!history.containsKey(userName)) {
history.put(userName, messages);
} else {
messages = history.get(userName);
}
messages.addObserver(this);
logger.info("Message list assigned to history");
logger.info("Sending the list of users.");
Operations.sendUserNamesList(users.getUserNames(), out);
logger.info("Userlist has been sent");
}
public InetSocketAddress getLocalAddress() {
Socket s = connection.getChannel().socket();
InetAddress ia = s.getLocalAddress();
int port = s.getLocalPort();
return new InetSocketAddress(ia, port);
}
public String toString() {
return getClientName() + " [" + s.getInetAddress() + "]";
}
