Refactor: Use RequestContext in SessionReader when instantiating responses

src/main/java/ch/unibas/dmi/dbis/cs108/casono/server/network/sessions/SessionReader.java

@@ -46,11 +46,13 @@ public class SessionReader implements Runnable {
         while (!Thread.currentThread().isInterrupted()) {
             RawPacket rawPacket = null;
             RawRequest rawRequest = null;
+            RequestContext requestContext = null;
             try {
                 // Step 1: Read from transport
                 rawPacket = transport.read();
                 session.updateLastInboundActivity();
                 logger.debug("Recieved: {}", rawPacket);
+                requestContext = new RequestContext(session.getId(), rawPacket.requestId());
 
                 // Step 2: Syntax validation and conversion into transport object
                 rawRequest = ProtocolParser.parse(rawPacket.payload());
@@ -58,9 +60,7 @@ public class SessionReader implements Runnable {
 
                 PrimitiveRequest primitiveRequest =
                         new PrimitiveRequest(
-                                new RequestContext(session.getId(), rawPacket.requestId()),
-                                rawRequest.command(),
-                                rawRequest.parameters());
+                                requestContext, rawRequest.command(), rawRequest.parameters());
                 logger.debug("Converted to {}", primitiveRequest);
 
                 // Step 3: Parse into Request and execute Request
@@ -76,8 +76,7 @@ public class SessionReader implements Runnable {
 
                 sendErrorResponse(
                         new ErrorResponse(
-                                session.getId(),
-                                rawPacket.requestId(),
+                                requestContext,
                                 "PARSING_ERROR",
                                 "Error occured during parsing. Likely due to malformed payload."));
 
@@ -85,8 +84,7 @@ public class SessionReader implements Runnable {
                 logger.error("Recieved unknown command '{}' from client", rawRequest.command(), e);
                 sendErrorResponse(
                         new ErrorResponse(
-                                session.getId(),
-                                rawPacket.requestId(),
+                                requestContext,
                                 "UNKNOWN_COMMAND",
                                 "This command is unknown to the server."));
 
@@ -97,8 +95,7 @@ public class SessionReader implements Runnable {
                 logger.error("Unexpected RuntimeException occured", e);
                 sendErrorResponse(
                         new ErrorResponse(
-                                session.getId(),
-                                rawPacket.requestId(),
+                                requestContext,
                                 "INTERNAL_ERROR",
                                 "Unexpected internal server error occured."));
             }