Update logging for sessions list

Author: tejasd

firebase-perf/src/main/java/com/google/firebase/perf/logging/FirebaseSessionsEnforcementCheck.kt

@@ -26,8 +26,10 @@ class FirebaseSessionsEnforcementCheck {
     private var logger: AndroidLogger = AndroidLogger.getInstance()
 
     @JvmStatic
-    fun checkSession(sessions: List<ProtoPerfSession>, failureMessage: String) {
-      sessions.forEach { checkSession(it.sessionId, failureMessage) }
+    fun checkSessionsList(sessions: List<ProtoPerfSession>, failureMessage: String) {
+      if (sessions.count { it.sessionId.isLegacy() } == sessions.size) {
+        sessions.forEach { checkSession(it.sessionId, failureMessage) }
+      }
     }
 
     @JvmStatic

firebase-perf/src/main/java/com/google/firebase/perf/transport/TransportManager.java

@@ -15,6 +15,7 @@
 package com.google.firebase.perf.transport;
 
 import static com.google.firebase.perf.logging.FirebaseSessionsEnforcementCheck.checkSession;
+import static com.google.firebase.perf.logging.FirebaseSessionsEnforcementCheck.checkSessionsList;
 import static com.google.firebase.perf.util.AppProcessesProvider.getProcessName;
 import static java.util.concurrent.TimeUnit.MILLISECONDS;
 import static java.util.concurrent.TimeUnit.MINUTES;
@@ -300,7 +301,7 @@ public void log(final TraceMetric traceMetric) {
    * {@link #isAllowedToDispatch(PerfMetric)}).
    */
   public void log(final TraceMetric traceMetric, final ApplicationProcessState appState) {
-    checkSession(traceMetric.getPerfSessionsList(), "log(TraceMetric)");
+    checkSessionsList(traceMetric.getPerfSessionsList(), "log(TraceMetric)");
     executorService.execute(
         () -> syncLog(PerfMetric.newBuilder().setTraceMetric(traceMetric), appState));
   }
@@ -329,7 +330,7 @@ public void log(final NetworkRequestMetric networkRequestMetric) {
    */
   public void log(
       final NetworkRequestMetric networkRequestMetric, final ApplicationProcessState appState) {
-    checkSession(networkRequestMetric.getPerfSessionsList(), "log(NetworkRequestMetric)");
+    checkSessionsList(networkRequestMetric.getPerfSessionsList(), "log(NetworkRequestMetric)");
     executorService.execute(
         () ->
             syncLog(