Added data retry support

1. Support multiple retry interval.
2. Completed data retry manager.
3. Used Google Truth for data unit tests.

Test: Manual & atest DataRetryManagerTest
Bug: 196597630
Merged-In: I04cadac100040054d449892df50e30dc77954082
Change-Id: I04cadac100040054d449892df50e30dc77954082

2 files changed, 52 insertions, 18 deletions

diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index a81cae13b0fe..98115ddbe137 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -5465,13 +5465,11 @@ public class CarrierConfigManager {
     public static final String KEY_APN_PRIORITY_STRING_ARRAY = "apn_priority_string_array";
 
     /**
-     * Network capability priority for determine the satisfy order in telephony. This is used when
-     * the network only allows single PDN. The priority is from the lowest 0 to the highest 100.
-     * The long-lived network request usually has the lowest priority. This allows other short-lived
-     * requests like MMS requests to be established. Emergency request always has the highest
-     * priority.
+     * Network capability priority for determine the satisfy order in telephony. The priority is
+     * from the lowest 0 to the highest 100. The long-lived network shall have the lowest priority.
+     * This allows other short-lived requests like MMS requests to be established. Emergency request
+     * always has the highest priority.
      *
-     * // TODO: Remove KEY_APN_PRIORITY_STRING_ARRAY
      * @hide
      */
     public static final String KEY_TELEPHONY_NETWORK_CAPABILITY_PRIORITIES_STRING_ARRAY =
@@ -5481,17 +5479,17 @@ public class CarrierConfigManager {
      * Defines the rules for data retry.
      *
      * The syntax of the retry rule:
-     * 1. Retry based on {@link NetworkCapabilities}
-     * "capabilities=[netCaps1|netCaps2|...], [retry_interval=x], [backoff=[true|false]],
-     *     [maximum_retries=y]"
+     * 1. Retry based on {@link NetworkCapabilities}. Note that only APN-type network capabilities
+     *    are supported.
+     * "capabilities=[netCaps1|netCaps2|...], [retry_interval=n1|n2|n3|n4...], [maximum_retries=n]"
      *
      * 2. Retry based on {@link DataFailCause}
-     * "fail_causes=[cause1|cause2|cause3|...], [retry_interval=x], [backoff=[true|false]],
-     *     [maximum_retries=y]"
+     * "fail_causes=[cause1|cause2|cause3|..], [retry_interval=n1|n2|n3|n4...], [maximum_retries=n]"
      *
-     * 3. Retry based on {@link NetworkCapabilities} and {@link DataFailCause}
+     * 3. Retry based on {@link NetworkCapabilities} and {@link DataFailCause}. Note that only
+     *    APN-type network capabilities are supported.
      * "capabilities=[netCaps1|netCaps2|...], fail_causes=[cause1|cause2|cause3|...],
-     *     [retry_interval=x], [backoff=[true|false]], [maximum_retries=y]"
+     *     [retry_interval=n1|n2|n3|n4...], [maximum_retries=n]"
      *
      * For example,
      * "capabilities=eims, retry_interval=1000, maximum_retries=20" means if the attached
@@ -5500,7 +5498,12 @@ public class CarrierConfigManager {
      *
      * "fail_causes=8|27|28|29|30|32|33|35|50|51|111|-5|-6|65537|65538|-3|2253|2254
      * , maximum_retries=0" means for those fail causes, never retry with timers. Note that
-     * when environment changes, retry can still happens.
+     * when environment changes, retry can still happen.
+     *
+     * "capabilities=internet|enterprise|dun|ims|fota, retry_interval=2500|3000|"
+     * "5000|10000|15000|20000|40000|60000|120000|240000|600000|1200000|1800000"
+     * "1800000, maximum_retries=20" means for those capabilities, retry happens in 2.5s, 3s, 5s,
+     * 10s, 15s, 20s, 40s, 1m, 2m, 4m, 10m, 20m, 30m, 30m, 30m, until reaching 20 retries.
      *
      * // TODO: remove KEY_CARRIER_DATA_CALL_RETRY_CONFIG_STRINGS
      * @hide
@@ -6276,6 +6279,9 @@ public class CarrierConfigManager {
                 "enterprise:0", "default:1", "mms:2", "supl:2", "dun:2", "hipri:3", "fota:2",
                 "ims:2", "cbs:2", "ia:2", "emergency:2", "mcx:3", "xcap:3"
         });
+
+        // Do not modify the priority unless you know what you are doing. This will have significant
+        // impacts on the order of data network setup.
         sDefaults.putStringArray(
                 KEY_TELEPHONY_NETWORK_CAPABILITY_PRIORITIES_STRING_ARRAY, new String[] {
                         "eims:90", "supl:80", "mms:70", "xcap:70", "cbs:50", "mcx:50", "fota:50",
@@ -6287,8 +6293,9 @@ public class CarrierConfigManager {
                         "fail_causes=8|27|28|29|30|32|33|35|50|51|111|-5|-6|65537|65538|-3|2253|"
                                 + "2254, maximum_retries=0", // No retry for those causes
                         "capabilities=mms|supl|cbs, retry_interval=2000",
-                        "capabilities=internet|enterprise|dun|ims|fota, retry_interval=2000, "
-                                + "backoff=true, maximum_retries=13",
+                        "capabilities=internet|enterprise|dun|ims|fota, retry_interval=2500|3000|"
+                                + "5000|10000|15000|20000|40000|60000|120000|240000|"
+                                + "600000|1200000|1800000, maximum_retries=20"
                 });
         sDefaults.putStringArray(KEY_MISSED_INCOMING_CALL_SMS_PATTERN_STRING_ARRAY, new String[0]);
         sDefaults.putBoolean(KEY_DISABLE_DUN_APN_WHILE_ROAMING_WITH_PRESET_APN_BOOL, false);
diff --git a/telephony/java/android/telephony/data/DataProfile.java b/telephony/java/android/telephony/data/DataProfile.java
index 43ad982f2e1e..c1d16a9aaea7 100644
--- a/telephony/java/android/telephony/data/DataProfile.java
+++ b/telephony/java/android/telephony/data/DataProfile.java
@@ -18,6 +18,7 @@ package android.telephony.data;
 
 import static android.telephony.data.ApnSetting.ProtocolType;
 
+import android.annotation.ElapsedRealtimeLong;
 import android.annotation.IntDef;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
@@ -70,6 +71,12 @@ public final class DataProfile implements Parcelable {
 
     private boolean mPreferred;
 
+    /**
+     * The last timestamp of this data profile being used for data network setup. Never add this
+     * to {@link #equals(Object)} and {@link #hashCode()}.
+     */
+    private @ElapsedRealtimeLong long mSetupTimestamp;
+
     private DataProfile(@NonNull Builder builder) {
         mApnSetting = builder.mApnSetting;
         mTrafficDescriptor = builder.mTrafficDescriptor;
@@ -101,6 +108,7 @@ public final class DataProfile implements Parcelable {
         mApnSetting = source.readParcelable(ApnSetting.class.getClassLoader());
         mTrafficDescriptor = source.readParcelable(TrafficDescriptor.class.getClassLoader());
         mPreferred = source.readBoolean();
+        mSetupTimestamp = source.readLong();
     }
 
     /**
@@ -397,6 +405,24 @@ public final class DataProfile implements Parcelable {
         }
     }
 
+    /**
+     * Set the timestamp of this data profile being used for data network setup.
+     *
+     * @hide
+     */
+    public void setLastSetupTimestamp(@ElapsedRealtimeLong long timestamp) {
+        mSetupTimestamp = timestamp;
+    }
+
+    /**
+     * @return the timestamp of this data profile being used for data network setup.
+     *
+     * @hide
+     */
+    public @ElapsedRealtimeLong long getLastSetupTimestamp() {
+        return mSetupTimestamp;
+    }
+
     @Override
     public int describeContents() {
         return 0;
@@ -405,8 +431,8 @@ public final class DataProfile implements Parcelable {
     @NonNull
     @Override
     public String toString() {
-        return "DataProfile=" + mApnSetting + ", " + mTrafficDescriptor + ", preferred="
-                + mPreferred;
+        return "[DataProfile=" + mApnSetting + ", " + mTrafficDescriptor + ", preferred="
+                + mPreferred + "]";
     }
 
     @Override
@@ -415,6 +441,7 @@ public final class DataProfile implements Parcelable {
         dest.writeParcelable(mApnSetting, flags);
         dest.writeParcelable(mTrafficDescriptor, flags);
         dest.writeBoolean(mPreferred);
+        dest.writeLong(mSetupTimestamp);
     }
 
     public static final @android.annotation.NonNull Parcelable.Creator<DataProfile> CREATOR =