Primary Info in Candidate Metric

This adds a bit to indicate which candidate provider is a candidate in
the candidate metric, within the flow where we know who the candidates
are, but not who the calling app is.

Bug: 271135048
Test: Build Test
Change-Id: I531c1be0ed67c29ebd01c6d8a52d08ec83144421

services/credentials/java/com/android/server/credentials/MetricUtilities.java

@@ -307,6 +307,7 @@ public class MetricUtilities {
             int[] candidateAuthEntryCountList = new int[providerSize];
             int[] candidateRemoteEntryCountList = new int[providerSize];
             String[] frameworkExceptionList = new String[providerSize];
+            boolean[] candidatePrimaryProviderList = new boolean[providerSize];
             int index = 0;
             for (var session : providerSessions) {
                 CandidatePhaseMetric metric = session.mProviderSessionMetric
@@ -339,6 +340,7 @@ public class MetricUtilities {
                 candidateRemoteEntryCountList[index] = metric.getResponseCollective()
                         .getCountForEntry(EntryEnum.REMOTE_ENTRY);
                 frameworkExceptionList[index] = metric.getFrameworkException();
+                candidatePrimaryProviderList[index] = metric.isPrimary();
                 index++;
             }
             FrameworkStatsLog.write(FrameworkStatsLog.CREDENTIAL_MANAGER_CANDIDATE_PHASE_REPORTED,
@@ -372,7 +374,7 @@ public class MetricUtilities {
                     /* api_name */
                     initialPhaseMetric.getApiName(),
                     /* primary_candidates_indicated */
-                    DEFAULT_REPEATED_BOOL
+                    candidatePrimaryProviderList
             );
         } catch (Exception e) {
             Slog.w(TAG, "Unexpected error during candidate provider uid metric emit: " + e);

services/credentials/java/com/android/server/credentials/ProviderSession.java

@@ -214,9 +214,11 @@ public abstract class ProviderSession<T, R>
     protected void updateStatusAndInvokeCallback(@NonNull Status status,
             CredentialsSource source) {
         setStatus(status);
+        boolean isPrimary = mProviderInfo != null && mProviderInfo.isPrimary();
         mProviderSessionMetric.collectCandidateMetricUpdate(isTerminatingStatus(status),
                 isCompletionStatus(status), mProviderSessionUid,
-                source == CredentialsSource.AUTH_ENTRY);
+                /*isAuthEntry*/source == CredentialsSource.AUTH_ENTRY,
+                /*isPrimary*/isPrimary);
         mCallbacks.onProviderStatusChanged(status, mComponentName, source);
     }
     /** Common method that transfers metrics from the init phase to candidates */

services/credentials/java/com/android/server/credentials/metrics/CandidatePhaseMetric.java

@@ -59,6 +59,8 @@ public class CandidatePhaseMetric {
     // Stores the response credential information, as well as the response entry information which
     // by default, contains empty info
     private ResponseCollective mResponseCollective = new ResponseCollective(Map.of(), Map.of());
+    // Indicates if this candidate is a primary provider, false by default
+    private boolean mIsPrimary = false;
 
     public CandidatePhaseMetric(int sessionIdTrackTwo) {
         mSessionIdProvider = sessionIdTrackTwo;
@@ -185,4 +187,12 @@ public class CandidatePhaseMetric {
     public String getFrameworkException() {
         return mFrameworkException;
     }
+
+    public void setPrimary(boolean primary) {
+        mIsPrimary = primary;
+    }
+
+    public boolean isPrimary() {
+        return mIsPrimary;
+    }
 }

services/credentials/java/com/android/server/credentials/metrics/ProviderSessionMetric.java

@@ -149,14 +149,17 @@ public class ProviderSessionMetric {
      * @param isFailureStatus indicates the candidate provider sent back a terminated response
      * @param isCompletionStatus indicates the candidate provider sent back a completion response
      * @param providerSessionUid the uid of the provider
+     * @param isPrimary indicates if this candidate provider was the primary provider
      */
     public void collectCandidateMetricUpdate(boolean isFailureStatus,
-            boolean isCompletionStatus, int providerSessionUid, boolean isAuthEntry) {
+            boolean isCompletionStatus, int providerSessionUid, boolean isAuthEntry,
+            boolean isPrimary) {
         try {
             if (isAuthEntry) {
                 collectAuthEntryUpdate(isFailureStatus, isCompletionStatus, providerSessionUid);
                 return;
             }
+            mCandidatePhasePerProviderMetric.setPrimary(isPrimary);
             mCandidatePhasePerProviderMetric.setCandidateUid(providerSessionUid);
             mCandidatePhasePerProviderMetric
                     .setQueryFinishTimeNanoseconds(System.nanoTime());