Guard with try/catch

app/src/main/java/chat/rocket/android/push/FirebaseTokenService.kt

@@ -4,6 +4,7 @@ import chat.rocket.android.R
 import chat.rocket.android.infrastructure.LocalRepository
 import chat.rocket.android.server.domain.GetCurrentServerInteractor
 import chat.rocket.android.server.infraestructure.RocketChatClientFactory
+import chat.rocket.android.util.retryIO
 import chat.rocket.common.RocketChatException
 import chat.rocket.core.internal.rest.registerPushToken
 import com.google.android.gms.gcm.GoogleCloudMessaging
@@ -32,23 +33,27 @@ class FirebaseTokenService : FirebaseInstanceIdService() {
     override fun onTokenRefresh() {
         //TODO: We need to use the Cordova Project gcm_sender_id since it's the one configured on RC
         // default push gateway. We should register this project's own project sender id into it.
-        val gcmToken = InstanceID.getInstance(this)
-                .getToken(getString(R.string.gcm_sender_id), GoogleCloudMessaging.INSTANCE_ID_SCOPE, null)
-        val currentServer = getCurrentServerInteractor.get()
-        val client = currentServer?.let { factory.create(currentServer) }
+        try {
+            val gcmToken = InstanceID.getInstance(this)
+                    .getToken(getString(R.string.gcm_sender_id), GoogleCloudMessaging.INSTANCE_ID_SCOPE, null)
+            val currentServer = getCurrentServerInteractor.get()
+            val client = currentServer?.let { factory.create(currentServer) }
 
-        gcmToken?.let {
-            localRepository.save(LocalRepository.KEY_PUSH_TOKEN, gcmToken)
-            client?.let {
-                launch {
-                    try {
-                        Timber.d("Registering push token: $gcmToken for ${client.url}")
-                        client.registerPushToken(gcmToken)
-                    } catch (ex: RocketChatException) {
-                        Timber.e(ex)
+            gcmToken?.let {
+                localRepository.save(LocalRepository.KEY_PUSH_TOKEN, gcmToken)
+                client?.let {
+                    launch {
+                        try {
+                            Timber.d("Registering push token: $gcmToken for ${client.url}")
+                            retryIO("register push token") { client.registerPushToken(gcmToken)  }
+                        } catch (ex: RocketChatException) {
+                            Timber.e(ex, "Error registering push token")
+                        }
                     }
                 }
             }
+        } catch (ex: Exception) {
+            Timber.d(ex, "Error refreshing Firebase TOKEN")
         }
     }
 }
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