Making InstallationTokenResult an AutoValue class.

Author: ankitaj224

firebase-installations-interop/firebase-installations-interop.gradle

@@ -40,4 +40,7 @@ android {
 
 dependencies {
 	implementation 'com.google.android.gms:play-services-tasks:17.0.0'
+
+	compileOnly "com.google.auto.value:auto-value-annotations:1.6.5"
+	annotationProcessor "com.google.auto.value:auto-value:1.6.2"
 }

firebase-installations-interop/src/main/java/com/google/firebase/installations/InstallationTokenResult.java

@@ -15,29 +15,24 @@
 package com.google.firebase.installations;
 
 import androidx.annotation.NonNull;
+import com.google.auto.value.AutoValue;
 
-/** A set of values describing a FIS Auth Token Result. */
-public class InstallationTokenResult {
+/** This class represents a set of values describing a FIS Auth Token Result. */
+@AutoValue
+public abstract class InstallationTokenResult {
 
   /** A new FIS Auth-Token, created for this firebase installation. */
-  private final String authToken;
+  @NonNull
+  public abstract String getAuthToken();
   /**
    * The amount of time, in milliseconds, before the auth-token expires for this firebase
    * installation.
    */
-  private final long tokenExpirationTimestampMillis;
-
-  public InstallationTokenResult(@NonNull String authToken, long tokenExpirationTimestampMillis) {
-    this.authToken = authToken;
-    this.tokenExpirationTimestampMillis = tokenExpirationTimestampMillis;
-  }
+  public abstract long getTokenExpirationTimestampMillis();
 
   @NonNull
-  public String getAuthToken() {
-    return authToken;
-  }
-
-  public long getTokenExpirationTimestampMillis() {
-    return tokenExpirationTimestampMillis;
+  public static InstallationTokenResult create(
+      @NonNull String authToken, long tokenExpirationTimestampMillis) {
+    return new AutoValue_InstallationTokenResult(authToken, tokenExpirationTimestampMillis);
   }
 }

firebase-installations/src/main/java/com/google/firebase/installations/FirebaseInstallations.java

@@ -78,7 +78,7 @@ public Task<String> getId() {
   @NonNull
   @Override
   public Task<InstallationTokenResult> getAuthToken(boolean forceRefresh) {
-    return Tasks.forResult(new InstallationTokenResult("dummy_auth_token", 1000l));
+    return Tasks.forResult(InstallationTokenResult.create("dummy_auth_token", 1000l));
   }
 
   /**