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 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);
}
}
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);
}