Lets limit GCM refresh to every 6hrs, and only retry once

// FREEBIE

src/org/thoughtcrime/securesms/ApplicationContext.java

@@ -48,6 +48,8 @@ import org.whispersystems.jobqueue.requirements.NetworkRequirementProvider;
 import org.whispersystems.libsignal.logging.SignalProtocolLoggerProvider;
 import org.whispersystems.libsignal.util.AndroidSignalProtocolLogger;
 
+import java.util.concurrent.TimeUnit;
+
 import dagger.ObjectGraph;
 
 /**
@@ -138,7 +140,11 @@ public class ApplicationContext extends MultiDexApplication implements Dependenc
 
   private void initializeGcmCheck() {
     if (TextSecurePreferences.isPushRegistered(this)) {
-      this.jobManager.add(new GcmRefreshJob(this));
+      long nextSetTime = TextSecurePreferences.getGcmRegistrationIdLastSetTime(this) + TimeUnit.HOURS.toMillis(6);
+
+      if (TextSecurePreferences.getGcmRegistrationId(this) == null || nextSetTime <= System.currentTimeMillis()) {
+        this.jobManager.add(new GcmRefreshJob(this));
+      }
     }
   }
 

src/org/thoughtcrime/securesms/jobs/GcmRefreshJob.java

@@ -49,7 +49,10 @@ public class GcmRefreshJob extends ContextJob implements InjectableType {
   @Inject transient SignalServiceAccountManager textSecureAccountManager;
 
   public GcmRefreshJob(Context context) {
-    super(context, JobParameters.newBuilder().withRequirement(new NetworkRequirement(context)).create());
+    super(context, JobParameters.newBuilder()
+                                .withRequirement(new NetworkRequirement(context))
+                                .withRetryCount(1)
+                                .create());
   }
 
   @Override
@@ -69,6 +72,7 @@ public class GcmRefreshJob extends ContextJob implements InjectableType {
       textSecureAccountManager.setGcmId(Optional.of(gcmId));
 
       TextSecurePreferences.setGcmRegistrationId(context, gcmId);
+      TextSecurePreferences.setGcmRegistrationIdLastSetTime(context, System.currentTimeMillis());
       TextSecurePreferences.setWebsocketRegistered(context, true);
     }
   }

src/org/thoughtcrime/securesms/util/TextSecurePreferences.java

@@ -87,6 +87,7 @@ public class TextSecurePreferences {
   private static final String GCM_DISABLED_PREF                = "pref_gcm_disabled";
   private static final String GCM_REGISTRATION_ID_PREF         = "pref_gcm_registration_id";
   private static final String GCM_REGISTRATION_ID_VERSION_PREF = "pref_gcm_registration_id_version";
+  private static final String GCM_REGISTRATION_ID_TIME_PREF    = "pref_gcm_registration_id_last_set_time";
   private static final String WEBSOCKET_REGISTERED_PREF        = "pref_websocket_registered";
   private static final String RATING_LATER_PREF                = "pref_rating_later";
   private static final String RATING_ENABLED_PREF              = "pref_rating_enabled";
@@ -231,6 +232,14 @@ public class TextSecurePreferences {
     }
   }
 
+  public static long getGcmRegistrationIdLastSetTime(Context context) {
+    return getLongPreference(context, GCM_REGISTRATION_ID_TIME_PREF, 0);
+  }
+
+  public static void setGcmRegistrationIdLastSetTime(Context context, long timestamp) {
+    setLongPreference(context, GCM_REGISTRATION_ID_TIME_PREF, timestamp);
+  }
+
   public static boolean isSmsEnabled(Context context) {
     if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
       return Util.isDefaultSmsProvider(context);