2 files changed, 27 insertions, 7 deletions

diff --git a/telephony/java/android/telephony/ims/RcsUceAdapter.java b/telephony/java/android/telephony/ims/RcsUceAdapter.java
index ada069666547..8d7742b7510b 100644
--- a/telephony/java/android/telephony/ims/RcsUceAdapter.java
+++ b/telephony/java/android/telephony/ims/RcsUceAdapter.java
@@ -76,39 +76,46 @@ public class RcsUceAdapter {
      * @hide
      */
     public static final int ERROR_GENERIC_FAILURE = 1;
+
     /**
      * The carrier network does not have UCE support enabled for this subscriber.
      * @hide
      */
     public static final int ERROR_NOT_ENABLED = 2;
+
     /**
      * The data network that the device is connected to does not support UCE currently (e.g. it is
      * 1x only currently).
      * @hide
      */
     public static final int ERROR_NOT_AVAILABLE = 3;
+
     /**
      * The network has responded with SIP 403 error and a reason "User not registered."
      * @hide
      */
     public static final int ERROR_NOT_REGISTERED = 4;
+
     /**
      * The network has responded to this request with a SIP 403 error and reason "not authorized for
      * presence" for this subscriber.
      * @hide
      */
     public static final int ERROR_NOT_AUTHORIZED = 5;
+
     /**
      * The network has responded to this request with a SIP 403 error and no reason.
      * @hide
      */
     public static final int ERROR_FORBIDDEN = 6;
+
     /**
      * The contact URI requested is not provisioned for VoLTE or it is not known as an IMS
      * subscriber to the carrier network.
      * @hide
      */
     public static final int ERROR_NOT_FOUND = 7;
+
     /**
      * The capabilities request contained too many URIs for the carrier network to handle. Retry
      * with a lower number of contact numbers. The number varies per carrier.
@@ -116,22 +123,32 @@ public class RcsUceAdapter {
      */
     // TODO: Try to integrate this into the API so that the service will split based on carrier.
     public static final int ERROR_REQUEST_TOO_LARGE = 8;
+
     /**
      * The network did not respond to the capabilities request before the request timed out.
      * @hide
      */
     public static final int ERROR_REQUEST_TIMEOUT = 10;
+
     /**
      * The request failed due to the service having insufficient memory.
      * @hide
      */
     public static final int ERROR_INSUFFICIENT_MEMORY = 11;
+
     /**
      * The network was lost while trying to complete the request.
      * @hide
      */
     public static final int ERROR_LOST_NETWORK = 12;
 
+    /**
+     * The network is temporarily unavailable or busy. Retries should only be done after the retry
+     * time returned in {@link CapabilitiesCallback#onError} has elapsed.
+     * @hide
+     */
+    public static final int ERROR_SERVER_UNAVAILABLE = 13;
+
     /**@hide*/
     @Retention(RetentionPolicy.SOURCE)
     @IntDef(prefix = "ERROR_", value = {
@@ -145,7 +162,8 @@ public class RcsUceAdapter {
             ERROR_REQUEST_TOO_LARGE,
             ERROR_REQUEST_TIMEOUT,
             ERROR_INSUFFICIENT_MEMORY,
-            ERROR_LOST_NETWORK
+            ERROR_LOST_NETWORK,
+            ERROR_SERVER_UNAVAILABLE
     })
     public @interface ErrorCode {}
 
@@ -369,8 +387,10 @@ public class RcsUceAdapter {
          * The pending request has resulted in an error and may need to be retried, depending on the
          * error code.
          * @param errorCode The reason for the framework being unable to process the request.
+         * @param retryAfterMilliseconds The time in milliseconds the requesting application should
+         * wait before retrying, if non-zero.
          */
-        void onError(@ErrorCode int errorCode);
+        void onError(@ErrorCode int errorCode, long retryAfterMilliseconds);
     }
 
     private final Context mContext;
@@ -451,10 +471,10 @@ public class RcsUceAdapter {
                 }
             }
             @Override
-            public void onError(int errorCode) {
+            public void onError(int errorCode, long retryAfterMilliseconds) {
                 final long callingIdentity = Binder.clearCallingIdentity();
                 try {
-                    executor.execute(() -> c.onError(errorCode));
+                    executor.execute(() -> c.onError(errorCode, retryAfterMilliseconds));
                 } finally {
                     restoreCallingIdentity(callingIdentity);
                 }
@@ -535,10 +555,10 @@ public class RcsUceAdapter {
                 }
             }
             @Override
-            public void onError(int errorCode) {
+            public void onError(int errorCode, long retryAfterMilliseconds) {
                 final long callingIdentity = Binder.clearCallingIdentity();
                 try {
-                    executor.execute(() -> c.onError(errorCode));
+                    executor.execute(() -> c.onError(errorCode, retryAfterMilliseconds));
                 } finally {
                     restoreCallingIdentity(callingIdentity);
                 }
diff --git a/telephony/java/android/telephony/ims/aidl/IRcsUceControllerCallback.aidl b/telephony/java/android/telephony/ims/aidl/IRcsUceControllerCallback.aidl
index 0bd3e5ed354e..0f627b92a24c 100644
--- a/telephony/java/android/telephony/ims/aidl/IRcsUceControllerCallback.aidl
+++ b/telephony/java/android/telephony/ims/aidl/IRcsUceControllerCallback.aidl
@@ -26,5 +26,5 @@ import android.telephony.ims.RcsContactUceCapability;
 oneway interface IRcsUceControllerCallback {
     void onCapabilitiesReceived(in List<RcsContactUceCapability> contactCapabilities);
     void onComplete();
-    void onError(int errorCode);
+    void onError(int errorCode, long retryAfterMilliseconds);
 }