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improved java doc in ChatWindowController and Client class finished Client Connection Handler in Progress

This commit is contained in:
Leonardo Brandenberger 2022-04-16 06:35:43 +02:00
parent 4edcc92649
commit 7c8bdb3b33
3 changed files with 120 additions and 29 deletions
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1
client/src/main/java/ch/zhaw/pm2/multichat/client/ChatWindowController.java
View File

@ -25,7 +25,6 @@ import static ch.zhaw.pm2.multichat.protocol.ConnectionHandler.State.*;
public class ChatWindowController {
private ClientConnectionHandler connectionHandler;
private ClientMessageList messages;
private final WindowCloseHandler windowCloseHandler = new WindowCloseHandler();
@FXML

145
client/src/main/java/ch/zhaw/pm2/multichat/client/ClientConnectionHandler.java
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@ -13,11 +13,17 @@ import java.net.SocketException;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static ch.zhaw.pm2.multichat.protocol.ConnectionHandler.State.*;
/**
* Client Connection Handler Class is used for the connection of the Client to a server
* it is used part as a Model storing properties like userName, state, serverAddress and Port.
* Also holds methods to
*/
public class ClientConnectionHandler extends ConnectionHandler implements Runnable {
private final Pattern messagePattern = Pattern.compile( "^(?:@(\\S*))?\\s*(.*)$" );
private final Pattern messagePattern = Pattern.compile("^(?:@(\\S*))?\\s*(.*)$");
private SimpleStringProperty userName;
private SimpleObjectProperty<State> state;
@ -25,7 +31,7 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
private SimpleStringProperty serverAddress;
private SimpleIntegerProperty serverPort;
public ClientConnectionHandler(ClientMessageList messages) {
public ClientConnectionHandler(ClientMessageList messages) {
super();
this.messages = messages;
state = new SimpleObjectProperty<>(State.NEW);
@ -39,27 +45,65 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
this.serverAddress.set(serverAddress);
this.serverPort.set(serverPort);
setConnection(NetworkHandler.openConnection(serverAddress, serverPort));
this.userName.set((userName == null || userName.isBlank())? USER_NONE : userName);
this.userName.set((userName == null || userName.isBlank()) ? USER_NONE : userName);
}
public SimpleStringProperty getServerAddressProperty() { return serverAddress; }
/**
* Observable getter Method for the stored serverAddress
*
* @return the stored serverAddress
*/
public SimpleStringProperty getServerAddressProperty() {
return serverAddress;
}
public SimpleIntegerProperty getServerPortProperty() { return serverPort; }
/**
* Observable getter Method for the stored serverPort
*
* @return the stored serverPort
*/
public SimpleIntegerProperty getServerPortProperty() {
return serverPort;
}
/**
* Observable getter Method for the stored state
*
* @return the stored state
*/
public SimpleObjectProperty<State> getStateProperty() {
return this.state;
}
public SimpleStringProperty getUserNameProperty() { return userName; }
/**
* Observable getter Method for the stored userName
*
* @return the stored userName
*/
public SimpleStringProperty getUserNameProperty() {
return userName;
}
public void setState (State newState) {
/**
* Method which sets a new State.
*
* @param newState the state that will be set
*/
public void setState(State newState) {
state.set(newState);
}
public void run () {
/**
* Standard run method which will directly start the startReceiving method.
*/
public void run() {
startReceiving();
}
/**
* Method that is started by the run method, starts a connection handler.
* Figures out if connection is avaible if not determines the error cause and gives an error acordingly.
*/
private void startReceiving() {
System.out.println("Starting Connection Handler");
try {
@ -77,14 +121,17 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
System.out.println("Connection terminated by remote");
this.setState(DISCONNECTED);
System.err.println("Unregistered because connection terminated" + e.getMessage());
} catch(IOException e) {
} catch (IOException e) {
System.err.println("Communication error" + e);
} catch(ClassNotFoundException e) {
} catch (ClassNotFoundException e) {
System.err.println("Received object of unknown type" + e.getMessage());
}
System.out.println("Stopped Connection Handler");
}
/**
* Method which is used to stop receiving data, gets the current connection and closes it.
*/
public void stopReceiving() {
System.out.println("Closing Connection Handler to Server");
try {
@ -94,9 +141,14 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
} catch (IOException e) {
System.err.println("Failed to close connection." + e.getMessage());
}
System.out.println("Closed Connection Handler to Server");
System.out.println("Closed Connection Handler to Server"); //TODO should be shown also when failed to close ?
}
/**
* Method which processes data and determines its type then uses the corresponding method to proccess it.
*
* @param data that is received in a form of a String and then used depending on its determined cause.
*/
private void processData(String data) {
try {
Scanner scanner = new Scanner(data);
@ -104,7 +156,7 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
StringBuilder reciever = new StringBuilder();
StringBuilder type = new StringBuilder();
StringBuilder payload = new StringBuilder();
super.processData(scanner,sender,reciever,type,payload);
super.processData(scanner, sender, reciever, type, payload);
// dispatch operation based on type parameter
if (type.toString().equals(getDataTypeConnect())) {
@ -112,9 +164,9 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
} else if (type.toString().equals(getDataTypeConfirm())) {
caseConfirm(sender.toString(), reciever.toString(), payload.toString());
} else if (type.toString().equals(getDataTypeDisconnect())) {
caseDisconnect(sender.toString(),reciever.toString(),payload.toString());
caseDisconnect(sender.toString(), reciever.toString(), payload.toString());
} else if (type.toString().equals(getDataTypeMessage())) {
caseMessage(sender.toString(),reciever.toString(),payload.toString());
caseMessage(sender.toString(), reciever.toString(), payload.toString());
} else if (type.toString().equals(getDataTypeError())) {
caseError(sender.toString(), reciever.toString(), payload.toString());
} else {
@ -131,11 +183,11 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
this.userName.set(reciever);
this.serverPort.set(getConnection().getRemotePort());
this.serverAddress.set(getConnection().getRemoteHost());
messages.addMessage(new Message(Message.MessageType.INFO,sender,reciever,payload));
messages.addMessage(new Message(Message.MessageType.INFO, sender, reciever, payload));
System.out.println("CONFIRM: " + payload);
this.setState(CONNECTED);
} else if (state.get() == CONFIRM_DISCONNECT) {
messages.addMessage(new Message(Message.MessageType.INFO,sender,reciever,payload));
messages.addMessage(new Message(Message.MessageType.INFO, sender, reciever, payload));
System.out.println("CONFIRM: " + payload);
this.setState(DISCONNECTED);
} else {
@ -143,42 +195,79 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
}
}
private void caseDisconnect(String sender, String reciever, String payload) {
/**
* Initiates the disconnect sequence and sends the message with all its info.
*
* @param sender the sender name of the message
* @param receiver the receiver name of the message
* @param payload the added payload that corresponds to the message
*/
private void caseDisconnect(String sender, String receiver, String payload) {
if (state.get() == DISCONNECTED) {
System.out.println("DISCONNECT: Already in disconnected: " + payload);
return;
}
messages.addMessage(new Message(Message.MessageType.INFO,sender,reciever,payload));
messages.addMessage(new Message(Message.MessageType.INFO, sender, receiver, payload));
System.out.println("DISCONNECT: " + payload);
this.setState(DISCONNECTED);
}
private void caseMessage(String sender, String reciever, String payload) {
/**
* Initiates the procedure to send a new message and sends one as such.
*
* @param sender the sender name of the message
* @param receiver the receiver name of the message
* @param payload the added payload that corresponds to the message
*/
private void caseMessage(String sender, String receiver, String payload) {
if (state.get() != CONNECTED) {
System.out.println("MESSAGE: Illegal state " + state + " for message: " + payload);
return;
}
messages.addMessage(new Message(Message.MessageType.MESSAGE,sender,reciever,payload));
System.out.println("MESSAGE: From " + sender + " to " + reciever + ": "+ payload);
messages.addMessage(new Message(Message.MessageType.MESSAGE, sender, receiver, payload));
System.out.println("MESSAGE: From " + sender + " to " + receiver + ": " + payload);
}
private void caseError(String sender, String reciever, String payload) {
messages.addMessage(new Message(Message.MessageType.ERROR,sender,reciever,payload));
/**
* Stores the message as an error message and displays it as such aswell.
*
* @param sender the sender name of the message
* @param receiver the receiver name of the message
* @param payload the added payload that corresponds to the message
*/
private void caseError(String sender, String receiver, String payload) {
messages.addMessage(new Message(Message.MessageType.ERROR, sender, receiver, payload));
System.out.println("ERROR: " + payload);
}
/**
* Connects TODO
*
* @throws ChatProtocolException Error that is thrown if the state is not set to NEW
*/
public void connect() throws ChatProtocolException {
if (state.get() != NEW) throw new ChatProtocolException("Illegal state for connect: " + state);
this.sendData(userName.get(), USER_NONE, getDataTypeConnect(),null);
this.sendData(userName.get(), USER_NONE, getDataTypeConnect(), null);
this.setState(CONFIRM_CONNECT);
}
/**
* TODO
* @throws ChatProtocolException
*/
public void disconnect() throws ChatProtocolException {
if (state.get() != NEW && state.get() != CONNECTED) throw new ChatProtocolException("Illegal state for disconnect: " + state);
this.sendData(userName.get(), USER_NONE, getDataTypeDisconnect(),null);
if (state.get() != NEW && state.get() != CONNECTED)
throw new ChatProtocolException("Illegal state for disconnect: " + state);
this.sendData(userName.get(), USER_NONE, getDataTypeDisconnect(), null);
this.setState(CONFIRM_DISCONNECT);
}
/**
* TODO
* @param messageString
* @return
* @throws ChatProtocolException
*/
public boolean message(String messageString) throws ChatProtocolException {
if (state.get() != CONNECTED) throw new ChatProtocolException("Illegal state for message: " + state);
@ -186,11 +275,11 @@ public class ClientConnectionHandler extends ConnectionHandler implements Runnab
if (matcher.find()) {
String receiver = matcher.group(1);
String message = matcher.group(2);
if(message.length() < 1){
if (message.length() < 1) {
return false;
}
if (receiver == null || receiver.isBlank()) receiver = ClientConnectionHandler.USER_ALL;
this.sendData(userName.get(), receiver, getDataTypeMessage(),message);
this.sendData(userName.get(), receiver, getDataTypeMessage(), message);
return true;
} else {
return false;

3
client/src/main/java/ch/zhaw/pm2/multichat/client/ClientMessageList.java
View File

@ -5,6 +5,9 @@ import javafx.beans.property.SimpleBooleanProperty;
import java.util.ArrayList;
import java.util.List;
/**
* Class that is use
*/
public class ClientMessageList {
private List<Message> messages = new ArrayList<>();
private final SimpleBooleanProperty changed = new SimpleBooleanProperty(false);