public void update(Observable source, Object object) {
if (source instanceof Users) {
if (!this.isDisabled()) {
try {
Operations.sendUserNamesList(users.getUserNames(), out);
} catch (IOException io) {
logger.error("IO Exception", io);
}
}
}
if (source instanceof Messages) {
try {
Operations.sendMessage((MessageType) object, out);
} catch (IOException io) {
if (out != null) {
try {
out.close();
} catch (Exception ioe) {
logger.error("Failed to close the output stream", ioe);
}
}
logger.error("Impossible to send messages", io);
}
}
}
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);
}
}
}
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 void receive() throws IOException {
Message message = Operations.receive(in);
logger.info("New message received.");
processMessage(message);
}
public class ClientThread extends Thread implements Observer, ServerInterface {
private Socket s = null;
private DataInputStream in = null;
private DataOutputStream out = null;
private Users users;
private static final Logger logger = Logger.getLogger("im.server");
private History history;
private String userName = "******";
private Messages messages = null;
private boolean disabled = false;
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 receive() throws IOException {
Message message = Operations.receive(in);
logger.info("New message received.");
processMessage(message);
}
private void processMessage(Message message) throws IOException {
if (message.getType().equals("SimpleMessage")) {
MessageType messageType = (MessageType) message.getValue();
String receiver = messageType.getToUser();
history.get(receiver).add(messageType);
}
if (message.getType().equals("ConnectUserMessage")) {
String user = (String) message.getValue();
Messages messages = history.get(user);
Operations.sendHistory(messages.getLastFiveWith(user), out);
}
}
// public void send(MessageType message) throws IOException {
// Operations.sendMessage(message, out);
// }
public String toString() {
return getClientName() + " [" + s.getInetAddress() + "]";
}
public String getClientName() {
return userName;
}
public void update(Observable source, Object object) {
if (source instanceof Users) {
if (!this.isDisabled()) {
try {
Operations.sendUserNamesList(users.getUserNames(), out);
} catch (IOException io) {
logger.error("IO Exception", io);
}
}
}
if (source instanceof Messages) {
try {
Operations.sendMessage((MessageType) object, out);
} catch (IOException io) {
if (out != null) {
try {
out.close();
} catch (Exception ioe) {
logger.error("Failed to close the output stream", ioe);
}
}
logger.error("Impossible to send messages", io);
}
}
}
private void setDisabled(boolean state) {
this.disabled = state;
}
private boolean isDisabled() {
return this.disabled;
}
private void setClientName(String userName) {
this.userName = userName;
}
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");
}
}