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Merge pull request #38 from PM2-IT21bWIN-ruiz-mach-krea/ConnectionHandlerClass

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Connection handler class
This commit is contained in:
Roman Schenk
2022-04-14 21:51:59 +02:00
committed by GitHub Enterprise
parent 4a998b0f61 5a26c6b127
commit 6e8e560d73
4 changed files with 98 additions and 73 deletions
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client/src/main/java/ch/zhaw/pm2/multichat/client/ChatWindowController.java
+4 -5
View File
@@ -1,7 +1,8 @@
package ch.zhaw.pm2.multichat.client;
import ch.zhaw.pm2.multichat.client.ClientConnectionHandler.State;
import ch.zhaw.pm2.multichat.protocol.ConnectionHandler.State;
import ch.zhaw.pm2.multichat.protocol.ChatProtocolException;
import ch.zhaw.pm2.multichat.protocol.ConnectionHandler;
import ch.zhaw.pm2.multichat.protocol.NetworkHandler;
import javafx.application.Platform;
import javafx.beans.value.ChangeListener;
@@ -15,10 +16,8 @@ import javafx.scene.layout.Pane;
import javafx.stage.WindowEvent;
import java.io.IOException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import static ch.zhaw.pm2.multichat.client.ClientConnectionHandler.State.*;
import static ch.zhaw.pm2.multichat.protocol.ConnectionHandler.State.*;
public class ChatWindowController {
private ClientConnectionHandler connectionHandler;
@@ -133,7 +132,7 @@ public class ChatWindowController {
}
}
public void stateChanged(State newState) {
public void stateChanged(ConnectionHandler.State newState) {
// update UI (need to be run in UI thread: see Platform.runLater())
Platform.runLater(new Runnable() {
@Override
client/src/main/java/ch/zhaw/pm2/multichat/client/ClientConnectionHandler.java
+23 -38
View File
@@ -1,6 +1,7 @@
package ch.zhaw.pm2.multichat.client;
import ch.zhaw.pm2.multichat.protocol.ChatProtocolException;
import ch.zhaw.pm2.multichat.protocol.ConnectionHandler;
import ch.zhaw.pm2.multichat.protocol.NetworkHandler;
import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleObjectProperty;
@@ -12,21 +13,9 @@ 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.*;
import static ch.zhaw.pm2.multichat.client.ClientConnectionHandler.State.*;
public class ClientConnectionHandler implements Runnable {
private final NetworkHandler.NetworkConnection<String> connection;
// Data types used for the Chat Protocol
private static final String DATA_TYPE_CONNECT = "CONNECT";
private static final String DATA_TYPE_CONFIRM = "CONFIRM";
private static final String DATA_TYPE_DISCONNECT = "DISCONNECT";
private static final String DATA_TYPE_MESSAGE = "MESSAGE";
private static final String DATA_TYPE_ERROR = "ERROR";
public static final String USER_NONE = "";
public static final String USER_ALL = "*";
public class ClientConnectionHandler extends ConnectionHandler implements Runnable {
private final Pattern messagePattern = Pattern.compile( "^(?:@(\\S*))?\\s*(.*)$" );
@@ -36,17 +25,13 @@ public class ClientConnectionHandler implements Runnable {
private SimpleStringProperty serverAddress;
private SimpleIntegerProperty serverPort;
enum State {
NEW, CONFIRM_CONNECT, CONNECTED, CONFIRM_DISCONNECT, DISCONNECTED;
}
public ClientConnectionHandler(NetworkHandler.NetworkConnection<String> connection,
String userName,
ClientMessageList messages) {
this.connection = connection;
super(connection);
this.userName = new SimpleStringProperty((userName == null || userName.isBlank())? USER_NONE : userName);
this.messages = messages;
state = new SimpleObjectProperty<>(NEW);
state = new SimpleObjectProperty<>(State.NEW);
serverAddress = new SimpleStringProperty();
serverPort = new SimpleIntegerProperty();
}
@@ -69,12 +54,12 @@ public class ClientConnectionHandler implements Runnable {
startReceiving();
}
public void startReceiving() {
private void startReceiving() {
System.out.println("Starting Connection Handler");
try {
System.out.println("Start receiving data...");
while (connection.isAvailable()) {
String data = connection.receive();
while (getConnection().isAvailable()) {
String data = getConnection().receive();
processData(data);
}
System.out.println("Stopped recieving data");
@@ -98,7 +83,7 @@ public class ClientConnectionHandler implements Runnable {
System.out.println("Closing Connection Handler to Server");
try {
System.out.println("Stop receiving data...");
connection.close();
getConnection().close();
System.out.println("Stopped receiving data.");
} catch (IOException e) {
System.err.println("Failed to close connection." + e.getMessage());
@@ -133,13 +118,13 @@ public class ClientConnectionHandler implements Runnable {
payload = scanner.nextLine();
}
// dispatch operation based on type parameter
if (type.equals(DATA_TYPE_CONNECT)) {
if (type.equals(getDataTypeConnect())) {
System.err.println("Illegal connect request from server");
} else if (type.equals(DATA_TYPE_CONFIRM)) {
} else if (type.equals(getDataTypeConfirm())) {
if (state.get() == CONFIRM_CONNECT) {
this.userName.set(reciever);
this.serverPort.set(connection.getRemotePort());
this.serverAddress.set(connection.getRemoteHost());
this.serverPort.set(getConnection().getRemotePort());
this.serverAddress.set(getConnection().getRemoteHost());
messages.addMessage(new Message(Message.MessageType.INFO,sender,reciever,payload));
System.out.println("CONFIRM: " + payload);
this.setState(CONNECTED);
@@ -150,7 +135,7 @@ public class ClientConnectionHandler implements Runnable {
} else {
System.err.println("Got unexpected confirm message: " + payload);
}
} else if (type.equals(DATA_TYPE_DISCONNECT)) {
} else if (type.equals(getDataTypeDisconnect())) {
if (state.get() == DISCONNECTED) {
System.out.println("DISCONNECT: Already in disconnected: " + payload);
return;
@@ -158,14 +143,14 @@ public class ClientConnectionHandler implements Runnable {
messages.addMessage(new Message(Message.MessageType.INFO,sender,reciever,payload));
System.out.println("DISCONNECT: " + payload);
this.setState(DISCONNECTED);
} else if (type.equals(DATA_TYPE_MESSAGE)) {
} else if (type.equals(getDataTypeMessage())) {
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);
} else if (type.equals(DATA_TYPE_ERROR)) {
} else if (type.equals(getDataTypeError())) {
messages.addMessage(new Message(Message.MessageType.ERROR,sender,reciever,payload));
System.out.println("ERROR: " + payload);
} else {
@@ -173,12 +158,12 @@ public class ClientConnectionHandler implements Runnable {
}
} catch (ChatProtocolException e) {
System.err.println("Error while processing data: " + e.getMessage());
sendData(USER_NONE, userName.get(), DATA_TYPE_ERROR, e.getMessage());
sendData(USER_NONE, userName.get(), getDataTypeError(), e.getMessage());
}
}
public void sendData(String sender, String receiver, String type, String payload) {
if (connection.isAvailable()) {
private void sendData(String sender, String receiver, String type, String payload) {
if (getConnection().isAvailable()) {
new StringBuilder();
String data = new StringBuilder()
.append(sender+"\n")
@@ -187,7 +172,7 @@ public class ClientConnectionHandler implements Runnable {
.append(payload+"\n")
.toString();
try {
connection.send(data);
getConnection().send(data);
} catch (SocketException e) {
System.err.println("Connection closed: " + e.getMessage());
} catch (EOFException e) {
@@ -200,13 +185,13 @@ public class ClientConnectionHandler implements Runnable {
public void connect() throws ChatProtocolException {
if (state.get() != NEW) throw new ChatProtocolException("Illegal state for connect: " + state);
this.sendData(userName.get(), USER_NONE, DATA_TYPE_CONNECT,null);
this.sendData(userName.get(), USER_NONE, getDataTypeConnect(),null);
this.setState(CONFIRM_CONNECT);
}
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, DATA_TYPE_DISCONNECT,null);
this.sendData(userName.get(), USER_NONE, getDataTypeDisconnect(),null);
this.setState(CONFIRM_DISCONNECT);
}
@@ -221,7 +206,7 @@ public class ClientConnectionHandler implements Runnable {
return false;
}
if (receiver == null || receiver.isBlank()) receiver = ClientConnectionHandler.USER_ALL;
this.sendData(userName.get(), receiver, DATA_TYPE_MESSAGE,message);
this.sendData(userName.get(), receiver, getDataTypeMessage(),message);
return true;
} else {
return false;