Remove usages of hidden connectivity APIs

This patch updates all VCN code to use System or Public APIs for
connectivity management (NetworkCapabilities, NetworkRequests, etc).

Bug: 8675309
Test: atest FrameworksVcnTests
Change-Id: I6637e1ca7efaff64d3e11187120ad9b42bdce45c

3 files changed, 26 insertions, 19 deletions

diff --git a/services/core/java/com/android/server/vcn/Vcn.java b/services/core/java/com/android/server/vcn/Vcn.java
index 9d21b9241c0d..132883e4a041 100644
--- a/services/core/java/com/android/server/vcn/Vcn.java
+++ b/services/core/java/com/android/server/vcn/Vcn.java
@@ -168,8 +168,8 @@ public class Vcn extends Handler {
             @NonNull NetworkRequest request, int score, int providerId) {
         if (score > getNetworkScore()) {
             Slog.v(getLogTag(),
-                    "Request " + request.requestId + " already satisfied by higher-scoring ("
-                            + score + ") network from provider " + providerId);
+                    "Request already satisfied by higher-scoring (" + score + ") network from "
+                            + "provider " + providerId + ": " + request);
             return;
         }
 
@@ -177,8 +177,7 @@ public class Vcn extends Handler {
         for (VcnGatewayConnectionConfig gatewayConnectionConfig : mVcnGatewayConnections.keySet()) {
             if (requestSatisfiedByGatewayConnectionConfig(request, gatewayConnectionConfig)) {
                 Slog.v(getLogTag(),
-                        "Request " + request.requestId
-                                + " satisfied by existing VcnGatewayConnection");
+                        "Request already satisfied by existing VcnGatewayConnection: " + request);
                 return;
             }
         }
@@ -202,12 +201,12 @@ public class Vcn extends Handler {
 
     private boolean requestSatisfiedByGatewayConnectionConfig(
             @NonNull NetworkRequest request, @NonNull VcnGatewayConnectionConfig config) {
-        final NetworkCapabilities configCaps = new NetworkCapabilities();
+        final NetworkCapabilities.Builder builder = new NetworkCapabilities.Builder();
         for (int cap : config.getAllExposedCapabilities()) {
-            configCaps.addCapability(cap);
+            builder.addCapability(cap);
         }
 
-        return request.networkCapabilities.satisfiedByNetworkCapabilities(configCaps);
+        return request.canBeSatisfiedBy(builder.build());
     }
 
     private String getLogTag() {
diff --git a/services/core/java/com/android/server/vcn/VcnGatewayConnection.java b/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
index 703bfab6d868..3cfa00eb6079 100644
--- a/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
+++ b/services/core/java/com/android/server/vcn/VcnGatewayConnection.java
@@ -963,18 +963,18 @@ public class VcnGatewayConnection extends StateMachine {
     @VisibleForTesting(visibility = Visibility.PRIVATE)
     static NetworkCapabilities buildNetworkCapabilities(
             @NonNull VcnGatewayConnectionConfig gatewayConnectionConfig) {
-        final NetworkCapabilities caps = new NetworkCapabilities();
+        final NetworkCapabilities.Builder builder = new NetworkCapabilities.Builder();
 
-        caps.addTransportType(TRANSPORT_CELLULAR);
-        caps.addCapability(NET_CAPABILITY_NOT_CONGESTED);
-        caps.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
+        builder.addTransportType(TRANSPORT_CELLULAR);
+        builder.addCapability(NET_CAPABILITY_NOT_CONGESTED);
+        builder.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
 
         // Add exposed capabilities
         for (int cap : gatewayConnectionConfig.getAllExposedCapabilities()) {
-            caps.addCapability(cap);
+            builder.addCapability(cap);
         }
 
-        return caps;
+        return builder.build();
     }
 
     private static LinkProperties buildConnectedLinkProperties(
diff --git a/services/core/java/com/android/server/vcn/VcnNetworkProvider.java b/services/core/java/com/android/server/vcn/VcnNetworkProvider.java
index 7f5b23c9db6f..b9babae4c6b7 100644
--- a/services/core/java/com/android/server/vcn/VcnNetworkProvider.java
+++ b/services/core/java/com/android/server/vcn/VcnNetworkProvider.java
@@ -21,9 +21,9 @@ import android.content.Context;
 import android.net.NetworkProvider;
 import android.net.NetworkRequest;
 import android.os.Looper;
+import android.util.ArrayMap;
 import android.util.ArraySet;
 import android.util.Slog;
-import android.util.SparseArray;
 
 import java.util.Objects;
 import java.util.Set;
@@ -40,7 +40,13 @@ public class VcnNetworkProvider extends NetworkProvider {
     private static final String TAG = VcnNetworkProvider.class.getSimpleName();
 
     private final Set<NetworkRequestListener> mListeners = new ArraySet<>();
-    private final SparseArray<NetworkRequestEntry> mRequests = new SparseArray<>();
+
+    /**
+     * Cache of NetworkRequest(s), scores and network providers, keyed by NetworkRequest
+     *
+     * <p>NetworkRequests are immutable once created, and therefore can be used as stable keys.
+     */
+    private final ArrayMap<NetworkRequest, NetworkRequestEntry> mRequests = new ArrayMap<>();
 
     public VcnNetworkProvider(Context context, Looper looper) {
         super(context, looper, VcnNetworkProvider.class.getSimpleName());
@@ -51,8 +57,8 @@ public class VcnNetworkProvider extends NetworkProvider {
         mListeners.add(listener);
 
         // Send listener all cached requests
-        for (int i = 0; i < mRequests.size(); i++) {
-            notifyListenerForEvent(listener, mRequests.valueAt(i));
+        for (NetworkRequestEntry entry : mRequests.values()) {
+            notifyListenerForEvent(listener, entry);
         }
     }
 
@@ -75,7 +81,9 @@ public class VcnNetworkProvider extends NetworkProvider {
                         request, score, providerId));
 
         final NetworkRequestEntry entry = new NetworkRequestEntry(request, score, providerId);
-        mRequests.put(request.requestId, entry);
+
+        // NetworkRequests are immutable once created, and therefore can be used as stable keys.
+        mRequests.put(request, entry);
 
         // TODO(b/176939047): Intelligently route requests to prioritized VcnInstances (based on
         // Default Data Sub, or similar)
@@ -86,7 +94,7 @@ public class VcnNetworkProvider extends NetworkProvider {
 
     @Override
     public void onNetworkRequestWithdrawn(@NonNull NetworkRequest request) {
-        mRequests.remove(request.requestId);
+        mRequests.remove(request);
     }
 
     private static class NetworkRequestEntry {