made all mongoLogger accesses in topology.ts be conditional

Author: aditi-khare-mongoDB

src/sdam/topology.ts

@@ -569,9 +569,9 @@ export class Topology extends TypedEventEmitter<TopologyEvents> {
 
     options = { serverSelectionTimeoutMS: this.s.serverSelectionTimeoutMS, ...options };
     if (
-      this.client.mongoLogger.willLog(SeverityLevel.DEBUG, MongoLoggableComponent.SERVER_SELECTION)
+      this.client.mongoLogger?.willLog(SeverityLevel.DEBUG, MongoLoggableComponent.SERVER_SELECTION)
     ) {
-      this.client.mongoLogger.debug(
+      this.client.mongoLogger?.debug(
         MongoLoggableComponent.SERVER_SELECTION,
         new ServerSelectionStartedEvent(selector, this.description, options.operationName)
       );
@@ -583,12 +583,12 @@ export class Topology extends TypedEventEmitter<TopologyEvents> {
 
     if (isSharded && transaction && transaction.server) {
       if (
-        this.client.mongoLogger.willLog(
+        this.client.mongoLogger?.willLog(
           SeverityLevel.DEBUG,
           MongoLoggableComponent.SERVER_SELECTION
         )
       ) {
-        this.client.mongoLogger.debug(
+        this.client.mongoLogger?.debug(
           MongoLoggableComponent.SERVER_SELECTION,
           new ServerSelectionSucceededEvent(
             selector,
@@ -623,12 +623,12 @@ export class Topology extends TypedEventEmitter<TopologyEvents> {
         this.description
       );
       if (
-        this.client.mongoLogger.willLog(
+        this.client.mongoLogger?.willLog(
           SeverityLevel.DEBUG,
           MongoLoggableComponent.SERVER_SELECTION
         )
       ) {
-        this.client.mongoLogger.debug(
+        this.client.mongoLogger?.debug(
           MongoLoggableComponent.SERVER_SELECTION,
           new ServerSelectionFailedEvent(
             selector,
@@ -915,12 +915,12 @@ function drainWaitQueue(queue: List<ServerSelectionRequest>, err?: MongoDriverEr
     if (!waitQueueMember[kCancelled]) {
       if (err) {
         if (
-          waitQueueMember.mongoLogger.willLog(
+          waitQueueMember.mongoLogger?.willLog(
             SeverityLevel.DEBUG,
             MongoLoggableComponent.SERVER_SELECTION
           )
         ) {
-          waitQueueMember.mongoLogger.debug(
+          waitQueueMember.mongoLogger?.debug(
             MongoLoggableComponent.SERVER_SELECTION,
             new ServerSelectionFailedEvent(
               waitQueueMember.serverSelector,
@@ -969,12 +969,12 @@ function processWaitQueue(topology: Topology) {
     } catch (e) {
       waitQueueMember.timeoutController.clear();
       if (
-        topology.client.mongoLogger.willLog(
+        topology.client.mongoLogger?.willLog(
           SeverityLevel.DEBUG,
           MongoLoggableComponent.SERVER_SELECTION
         )
       ) {
-        topology.client.mongoLogger.debug(
+        topology.client.mongoLogger?.debug(
           MongoLoggableComponent.SERVER_SELECTION,
           new ServerSelectionFailedEvent(
             waitQueueMember.serverSelector,
@@ -992,12 +992,12 @@ function processWaitQueue(topology: Topology) {
     if (selectedDescriptions.length === 0) {
       if (!waitQueueMember.waitingLogged) {
         if (
-          topology.client.mongoLogger.willLog(
+          topology.client.mongoLogger?.willLog(
             SeverityLevel.INFORMATIONAL,
             MongoLoggableComponent.SERVER_SELECTION
           )
         ) {
-          topology.client.mongoLogger.info(
+          topology.client.mongoLogger?.info(
             MongoLoggableComponent.SERVER_SELECTION,
             new WaitingForSuitableServerEvent(
               waitQueueMember.serverSelector,
@@ -1032,12 +1032,12 @@ function processWaitQueue(topology: Topology) {
         topology.description
       );
       if (
-        topology.client.mongoLogger.willLog(
+        topology.client.mongoLogger?.willLog(
           SeverityLevel.DEBUG,
           MongoLoggableComponent.SERVER_SELECTION
         )
       ) {
-        topology.client.mongoLogger.debug(
+        topology.client.mongoLogger?.debug(
           MongoLoggableComponent.SERVER_SELECTION,
           new ServerSelectionFailedEvent(
             waitQueueMember.serverSelector,
@@ -1058,12 +1058,12 @@ function processWaitQueue(topology: Topology) {
     waitQueueMember.timeoutController.clear();
 
     if (
-      topology.client.mongoLogger.willLog(
+      topology.client.mongoLogger?.willLog(
         SeverityLevel.DEBUG,
         MongoLoggableComponent.SERVER_SELECTION
       )
     ) {
-      topology.client.mongoLogger.debug(
+      topology.client.mongoLogger?.debug(
         MongoLoggableComponent.SERVER_SELECTION,
         new ServerSelectionSucceededEvent(
           waitQueueMember.serverSelector,