Docs: Add JavaDoc to newly added components

src/main/java/ch/unibas/dmi/dbis/cs108/casono/server/ServerApp.java

@@ -69,6 +69,13 @@ public class ServerApp {
         networkManager.start();
     }
 
+    /**
+     * Registers command parsers and handlers.
+     *
+     * @param parserDispatcher the dispatcher responsible for parsing incoming commands
+     * @param commandRouter the router that dispatches parsed commands to appropriate handlers
+     * @param responseDispatcher the dispatcher responsible for sending responses back to clients
+     */
     private static void register_commands(
             CommandParserDispatcher parserDispatcher,
             CommandRouter commandRouter,

src/main/java/ch/unibas/dmi/dbis/cs108/casono/server/app/commands/ping/PingHandler.java

@@ -4,13 +4,24 @@ import ch.unibas.dmi.dbis.cs108.casono.server.network.command.execution.CommandH
 import ch.unibas.dmi.dbis.cs108.casono.server.network.protocol.response.OkResponse;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.protocol.response.dispatcher.ResponseDispatcher;
 
+/** Handler for {@link PingRequest}. */
 public class PingHandler implements CommandHandler<PingRequest> {
     private final ResponseDispatcher responseDispatcher;
 
+    /**
+     * Create a new PingHandler to execute {@link PingRequest}s
+     *
+     * @param responseDispatcher dispatcher used to send responses back to clients
+     */
     public PingHandler(ResponseDispatcher responseDispatcher) {
         this.responseDispatcher = responseDispatcher;
     }
 
+    /**
+     * Execute the ping request.
+     *
+     * @param request the ping request to handle
+     */
     @Override
     public void execute(PingRequest request) {
         responseDispatcher.dispatch(new OkResponse(request.getContext()));

src/main/java/ch/unibas/dmi/dbis/cs108/casono/server/app/commands/ping/PingParser.java

@@ -3,7 +3,18 @@ package ch.unibas.dmi.dbis.cs108.casono.server.app.commands.ping;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.command.parsing.CommandParser;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.protocol.request.PrimitiveRequest;
 
+/**
+ * Parser for the Ping command.
+ *
+ * <p>Converts a low-level {@link PrimitiveRequest} into a {@link PingRequest}.
+ */
 public class PingParser implements CommandParser<PingRequest> {
+    /**
+     * Parse the given primitive request into a {@link PingRequest}.
+     *
+     * @param primitiveRequest the raw request to parse
+     * @return {@link PingRequest}
+     */
     @Override
     public PingRequest parse(PrimitiveRequest primitiveRequest) {
         return new PingRequest(primitiveRequest.context());

src/main/java/ch/unibas/dmi/dbis/cs108/casono/server/app/commands/ping/PingRequest.java

@@ -3,7 +3,16 @@ package ch.unibas.dmi.dbis.cs108.casono.server.app.commands.ping;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.protocol.request.Request;
 import ch.unibas.dmi.dbis.cs108.casono.server.network.protocol.request.RequestContext;
 
+/**
+ * Represents a "PING" request sent by a client to check server availability and keep the connection
+ * alive.
+ */
 public class PingRequest extends Request {
+    /**
+     * Constructs a new PingRequest with the given context.
+     *
+     * @param context the request context associated with this request
+     */
     public PingRequest(RequestContext context) {
         super(context);
     }