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feat: partially implemented GameAssignment

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This commit is contained in:
Yannik Bretschneider 2021-06-05 19:40:10 +02:00
parent 7ce16fd81f
commit 02b2a58cce
2 changed files with 72 additions and 36 deletions
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9
Server/src/main/java/uulm/teamname/marvelous/server/netconnector/MarvelousServer.java
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@ -12,32 +12,29 @@ public class MarvelousServer extends WebSocketServer {
@Override
public void onOpen(WebSocket conn, ClientHandshake handshake) {
Logger.info("New client connected. Adding new User.");
userManager.connectUser(conn, handshake);
// TODO: Send messages to UserManager, which then packages that stuff and sends it further
userManager.connectUser(conn);
}
@Override
public void onClose(WebSocket conn, int code, String reason, boolean remote) {
Logger.info("Client disconnected");
userManager.disconnectUser(conn, remote);
// TODO: Send messages to UserManager, which then removes the user and such
}
@Override
public void onMessage(WebSocket conn, String message) {
Logger.debug("Message received: {}", message);
userManager.messageReceived(conn, message);
// TODO: Send messages to UserManager, which then packages them and sends them further
}
@Override
public void onError(WebSocket conn, Exception ex) {
// TODO: Send errors to UserManager, which then answers with even more errors
Logger.warn("WebSocket-Error occurred: {}", ex.getMessage());
}
@Override
public void onStart() {
// TODO: Get the UserManager, and tell it that this thing is active
Logger.info("MarvelousServer started on Address {}", this.getAddress().toString());
}
private final UserManager userManager;

99
Server/src/main/java/uulm/teamname/marvelous/server/netconnector/UserManager.java
View File

@ -1,9 +1,8 @@
package uulm.teamname.marvelous.server.netconnector;
import org.java_websocket.handshake.ClientHandshake;
import org.tinylog.Logger;
import uulm.teamname.marvelous.gamelibrary.json.JSON;
import uulm.teamname.marvelous.gamelibrary.messages.BasicMessage;
import uulm.teamname.marvelous.gamelibrary.json.ValidationUtility;
import uulm.teamname.marvelous.gamelibrary.messages.ErrorMessage;
import uulm.teamname.marvelous.gamelibrary.messages.client.*;
import uulm.teamname.marvelous.server.lobbymanager.Participant;
@ -12,13 +11,17 @@ import org.java_websocket.WebSocket;
import java.util.*;
/** Class that manages users. It is meant as an extension to the {@link MarvelousServer} class, and should not be called
* from anywhere else. This is the first place where messages are relayed to after they get received. This class is
* responsible for handshakes, reconnects and WebSocket-to-Participant matching. <b>It is not thread-safe.</b>
*/
public class UserManager {
/** A set of users that aren't assigned to lobbies or character selection yet */
private final HashSet<WebSocket> newUsers;
/** A set of users that can reconnect if they wish to do so, and their matching Participants */
private final HashMap<WebSocket, Participant> readyToReconnect;
private final HashMap<WebSocket, SUID> readyToReconnect;
/** A set of users that only have to send the
* {@link uulm.teamname.marvelous.gamelibrary.messages.client.PlayerReadyMessage} to be assigned
@ -49,24 +52,51 @@ public class UserManager {
}
/** Called on a new WebSocket connection. Places the WebSocket and its ResourceDescriptor in a HashMap. */
public void connectUser(WebSocket conn, ClientHandshake handshake) {
synchronized (newUsers) {
newUsers.add(conn);
}
public void connectUser(WebSocket conn) {
newUsers.add(conn);
}
/**
* Called on any received messages. The method checks the message for validity, and then relays it
* accordingly. {@link HelloServerMessage HelloServerMessages} and {@link ReconnectMessage ReconnectMessages}
* are handled in this component, whereby a handshake or reconnect is performed, respectively.
* @param conn is the {@link WebSocket} that sent the message
* @param message is the {@link String} sent by the connection
*/
public void messageReceived(WebSocket conn, String message) {
// TODO: Implement more than only a basic handshake
Logger.trace("Parsing message...");
var parsedMessageOptional = json.parse(message);
if (parsedMessageOptional.isEmpty()) {
Logger.debug("Invalid message '{}' received, sending error", message);
Logger.debug("Message '{}' was invalid, sending error", message);
sendError(conn, "Message could not be parsed");
} else {
var parsedMessage = parsedMessageOptional.get();
if (parsedMessage instanceof HelloServerMessage)
handshake(conn, (HelloServerMessage) parsedMessage);
Logger.trace("Validating message...");
var violations = ValidationUtility.validate(parsedMessage);
if (violations.isPresent()) {
Logger.debug("Message '{}' was invalid: {}, sending error", message, violations.get());
sendError(conn, violations.get());
} else {
Logger.trace("Message was valid. Checking type of message...");
if (parsedMessage instanceof HelloServerMessage) {
Logger.trace("Message is instanceof HelloServerMessage, initiating handshake");
handshake(conn, (HelloServerMessage) parsedMessage);
} else if (parsedMessage instanceof ReconnectMessage) {
Logger.trace("Message is instanceof ReconnectMessage, initiating reconnect");
reconnectClient(conn, (ReconnectMessage) parsedMessage);
} else if (parsedMessage instanceof PlayerReadyMessage) {
Logger.trace("Message is instanceof PlayerReadyMessage, assigning lobby");
assignLobby(conn, (PlayerReadyMessage) parsedMessage);
} else {
Logger.debug("Message '{}' has invalid type, Error will be sent");
sendError(conn, String.format(
"Message '%s' has invalid type, and cannot be processed on the server",
message));
}
}
}
}
@ -85,7 +115,7 @@ public class UserManager {
var participant = activeParticipants.get(clientID);
if (participant != null) {
synchronized (readyToReconnect) {
readyToReconnect.put(conn, participant);
readyToReconnect.put(conn, clientID);
}
} else {
Logger.trace("removing handshaking user from newUsers");
@ -99,33 +129,37 @@ public class UserManager {
}
}
public void reconnectClient(WebSocket conn, ReconnectMessage message) {
if (!readyToConnect.containsKey(conn)) {
void reconnectClient(WebSocket conn, ReconnectMessage message) {
if (!readyToReconnect.containsKey(conn)) {
Logger.debug("Non-reconnect-allowed client has sent reconnect message, sending error");
sendError(conn, "Reconnect is not possible");
return;
}
Logger.info("Reconnecting client {} to their lobby");
var participantToRestore = readyToReconnect.get(conn);
synchronized (participantToRestore) {
} else if (message.reconnect) {
Logger.info("Reconnecting client {} to their lobby", conn);
var clientID = readyToReconnect.get(conn);
var participantToRestore = activeParticipants.get(clientID);
participantToRestore.setConnection(conn);
}
synchronized (readyToReconnect) {
readyToReconnect.remove(conn);
inGame.put(conn, participantToRestore);
// activeParticipants remains the same, as no players have been removed from the game
} else {
Logger.debug(
"Client {} refused reconnection, will therefore be put into readyToConnect clients",
conn);
var clientID = readyToReconnect.get(conn);
readyToConnect.put(conn, clientID);
readyToReconnect.remove(conn);
}
synchronized (inGame) {
inGame.put(conn, participantToRestore);
}
// activeParticipants remains the same, as no players have been removed from the game
}
public void assignLobby(WebSocket conn, PlayerReadyMessage message) {
void assignLobby(WebSocket conn, PlayerReadyMessage message) {
}
public void charactersSelected(WebSocket conn, CharacterSelectionMessage message) {
void charactersSelected(WebSocket conn, CharacterSelectionMessage message) {
}
public void relayRequestMessage(Participant conn, RequestMessage message) {
void relayRequestMessage(Participant conn, RequestMessage message) {
}
/** Sends an {@link uulm.teamname.marvelous.gamelibrary.messages.ErrorMessage} to the specified user. */
@ -158,26 +192,31 @@ public class UserManager {
}
/** Package-private getter for mutable newUsers HashSet, meant for testing */
@Deprecated
HashSet<WebSocket> getNewUsers() {
return newUsers;
}
/** Package-private getter for mutable readyToReconnect HashMap, meant for testing */
HashMap<WebSocket, Participant> getReadyToReconnect() {
@Deprecated
HashMap<WebSocket, SUID> getReadyToReconnect() {
return readyToReconnect;
}
/** Package-private getter for mutable readyToConnect HashMap, meant for testing */
@Deprecated
HashMap<WebSocket, SUID> getReadyToConnect() {
return readyToConnect;
}
/** Package-private getter for mutable inGame HashMap, meant for testing */
@Deprecated
HashMap<WebSocket, Participant> getInGame() {
return inGame;
}
/** Package-private getter for mutable activeParticipants HashMap, meant for testing */
@Deprecated
HashMap<SUID, Participant> getActiveParticipants() {
return activeParticipants;
}