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Remove use of network scores, and provider IDs in VcnNetworkProvider

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This change updates the VcnNetworkProvider and associated
requestListeners to no longer use the network score and provider IDs, in
order to match the new NetworkProvider APIs.

Bug: 185204197
Test: atest FrameworksVcnTests
Change-Id: I0cabce702cfd8457fd1a152af07a847b87d67028
This commit is contained in:
Benedict Wong
2021-04-12 23:18:27 -07:00
parent 1ce20d65e0
commit fff0f8ba33
4 changed files with 47 additions and 88 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
services/core/java/com/android/server/vcn/Vcn.java
View File

@@ -265,10 +265,10 @@ public class Vcn extends Handler {
private class VcnNetworkRequestListener implements VcnNetworkProvider.NetworkRequestListener {
@Override
public void onNetworkRequested(@NonNull NetworkRequest request, int score, int providerId) {
public void onNetworkRequested(@NonNull NetworkRequest request) {
Objects.requireNonNull(request, "Missing request");
sendMessage(obtainMessage(MSG_EVENT_NETWORK_REQUESTED, score, providerId, request));
sendMessage(obtainMessage(MSG_EVENT_NETWORK_REQUESTED, request));
}
}
@@ -284,7 +284,7 @@ public class Vcn extends Handler {
handleConfigUpdated((VcnConfig) msg.obj);
break;
case MSG_EVENT_NETWORK_REQUESTED:
handleNetworkRequested((NetworkRequest) msg.obj, msg.arg1, msg.arg2);
handleNetworkRequested((NetworkRequest) msg.obj);
break;
case MSG_EVENT_SUBSCRIPTIONS_CHANGED:
handleSubscriptionsChanged((TelephonySubscriptionSnapshot) msg.obj);
@@ -365,25 +365,9 @@ public class Vcn extends Handler {
}
}
private void handleNetworkRequested(
@NonNull NetworkRequest request, int score, int providerId) {
private void handleNetworkRequested(@NonNull NetworkRequest request) {
Slog.v(getLogTag(), "Received request " + request);
if (score > getNetworkScore()) {
if (VDBG) {
Slog.v(
getLogTag(),
"Request already satisfied by higher-scoring ("
+ score
+ ") network from "
+ "provider "
+ providerId
+ ": "
+ request);
}
return;
}
// If preexisting VcnGatewayConnection(s) satisfy request, return
for (VcnGatewayConnectionConfig gatewayConnectionConfig : mVcnGatewayConnections.keySet()) {
if (isRequestSatisfiedByGatewayConnectionConfig(request, gatewayConnectionConfig)) {

66
services/core/java/com/android/server/vcn/VcnNetworkProvider.java
View File

@@ -23,7 +23,6 @@ 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;
@@ -31,7 +30,6 @@ import com.android.internal.annotations.VisibleForTesting;
import com.android.internal.annotations.VisibleForTesting.Visibility;
import com.android.internal.util.IndentingPrintWriter;
import java.util.Objects;
import java.util.Set;
/**
@@ -48,11 +46,11 @@ public class VcnNetworkProvider extends NetworkProvider {
private final Set<NetworkRequestListener> mListeners = new ArraySet<>();
/**
* Cache of NetworkRequest(s), scores and network providers, keyed by NetworkRequest
* Cache of NetworkRequest(s).
*
* <p>NetworkRequests are immutable once created, and therefore can be used as stable keys.
*/
private final ArrayMap<NetworkRequest, NetworkRequestEntry> mRequests = new ArrayMap<>();
private final Set<NetworkRequest> mRequests = new ArraySet<>();
public VcnNetworkProvider(Context context, Looper looper) {
super(context, looper, VcnNetworkProvider.class.getSimpleName());
@@ -80,38 +78,28 @@ public class VcnNetworkProvider extends NetworkProvider {
/** Sends all cached NetworkRequest(s) to the specified listener. */
@VisibleForTesting(visibility = Visibility.PACKAGE)
public void resendAllRequests(@NonNull NetworkRequestListener listener) {
for (NetworkRequestEntry entry : mRequests.values()) {
notifyListenerForEvent(listener, entry);
for (NetworkRequest request : mRequests) {
notifyListenerForEvent(listener, request);
}
}
private void notifyListenerForEvent(
@NonNull NetworkRequestListener listener, @NonNull NetworkRequestEntry entry) {
listener.onNetworkRequested(entry.mRequest, entry.mScore, entry.mProviderId);
@NonNull NetworkRequestListener listener, @NonNull NetworkRequest request) {
listener.onNetworkRequested(request);
}
@Override
public void onNetworkRequested(@NonNull NetworkRequest request, int score, int providerId) {
if (VDBG) {
Slog.v(
TAG,
"Network requested: Request = "
+ request
+ ", score = "
+ score
+ ", providerId = "
+ providerId);
Slog.v(TAG, "Network requested: Request = " + request);
}
final NetworkRequestEntry entry = new NetworkRequestEntry(request, score, providerId);
// NetworkRequests are immutable once created, and therefore can be used as stable keys.
mRequests.put(request, entry);
mRequests.add(request);
// TODO(b/176939047): Intelligently route requests to prioritized VcnInstances (based on
// Default Data Sub, or similar)
for (NetworkRequestListener listener : mListeners) {
notifyListenerForEvent(listener, entry);
notifyListenerForEvent(listener, request);
}
}
@@ -120,37 +108,9 @@ public class VcnNetworkProvider extends NetworkProvider {
mRequests.remove(request);
}
private static class NetworkRequestEntry {
public final NetworkRequest mRequest;
public final int mScore;
public final int mProviderId;
private NetworkRequestEntry(@NonNull NetworkRequest request, int score, int providerId) {
mRequest = Objects.requireNonNull(request, "Missing request");
mScore = score;
mProviderId = providerId;
}
/**
* Dumps the state of this NetworkRequestEntry for logging and debugging purposes.
*
* <p>PII and credentials MUST NEVER be dumped here.
*/
public void dump(IndentingPrintWriter pw) {
pw.println("NetworkRequestEntry:");
pw.increaseIndent();
pw.println("mRequest: " + mRequest);
pw.println("mScore: " + mScore);
pw.println("mProviderId: " + mProviderId);
pw.decreaseIndent();
}
}
// package-private
interface NetworkRequestListener {
void onNetworkRequested(@NonNull NetworkRequest request, int score, int providerId);
void onNetworkRequested(@NonNull NetworkRequest request);
}
/**
@@ -170,10 +130,10 @@ public class VcnNetworkProvider extends NetworkProvider {
pw.decreaseIndent();
pw.println();
pw.println("mRequests.values:");
pw.println("mRequests:");
pw.increaseIndent();
for (NetworkRequestEntry entry : mRequests.values()) {
entry.dump(pw);
for (NetworkRequest request : mRequests) {
pw.println(request);
}
pw.decreaseIndent();
pw.println();

41
tests/vcn/java/com/android/server/vcn/VcnNetworkProviderTest.java
View File

@@ -34,12 +34,14 @@ import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.util.ArrayList;
import java.util.List;
/** Tests for TelephonySubscriptionTracker */
@RunWith(AndroidJUnit4.class)
@SmallTest
public class VcnNetworkProviderTest {
private static final int TEST_SCORE_UNSATISFIED = 0;
private static final int TEST_SCORE_HIGH = 100;
private static final int TEST_PROVIDER_ID = 1;
@NonNull private final Context mContext;
@@ -65,17 +67,7 @@ public class VcnNetworkProviderTest {
final NetworkRequest request = mock(NetworkRequest.class);
mVcnNetworkProvider.onNetworkRequested(request, TEST_SCORE_UNSATISFIED, TEST_PROVIDER_ID);
verify(mListener).onNetworkRequested(request, TEST_SCORE_UNSATISFIED, TEST_PROVIDER_ID);
}
@Test
public void testRequestsPassedToRegisteredListeners_satisfiedByHighScoringProvider()
throws Exception {
mVcnNetworkProvider.registerListener(mListener);
final NetworkRequest request = mock(NetworkRequest.class);
mVcnNetworkProvider.onNetworkRequested(request, TEST_SCORE_HIGH, TEST_PROVIDER_ID);
verify(mListener).onNetworkRequested(request, TEST_SCORE_HIGH, TEST_PROVIDER_ID);
verify(mListener).onNetworkRequested(request);
}
@Test
@@ -87,4 +79,29 @@ public class VcnNetworkProviderTest {
mVcnNetworkProvider.onNetworkRequested(request, TEST_SCORE_UNSATISFIED, TEST_PROVIDER_ID);
verifyNoMoreInteractions(mListener);
}
@Test
public void testCachedRequestsPassedOnRegister() throws Exception {
final List<NetworkRequest> requests = new ArrayList<>();
for (int i = 0; i < 10; i++) {
// Build unique network requests; in this case, iterate down the capabilities as a way
// to unique-ify requests.
final NetworkRequest request =
new NetworkRequest.Builder().clearCapabilities().addCapability(i).build();
requests.add(request);
mVcnNetworkProvider.onNetworkRequested(request, i, i + 1);
}
// Remove one, and verify that it is never sent to the listeners.
final NetworkRequest removed = requests.remove(0);
mVcnNetworkProvider.onNetworkRequestWithdrawn(removed);
mVcnNetworkProvider.registerListener(mListener);
for (NetworkRequest request : requests) {
verify(mListener).onNetworkRequested(request);
}
verifyNoMoreInteractions(mListener);
}
}

4
tests/vcn/java/com/android/server/vcn/VcnTest.java
View File

@@ -75,8 +75,6 @@ import java.util.UUID;
public class VcnTest {
private static final String PKG_NAME = VcnTest.class.getPackage().getName();
private static final ParcelUuid TEST_SUB_GROUP = new ParcelUuid(new UUID(0, 0));
private static final int NETWORK_SCORE = 0;
private static final int PROVIDER_ID = 5;
private static final boolean MOBILE_DATA_ENABLED = true;
private static final Set<Integer> TEST_SUB_IDS_IN_GROUP =
new ArraySet<>(Arrays.asList(1, 2, 3));
@@ -177,7 +175,7 @@ public class VcnTest {
requestBuilder.addCapability(netCapability);
}
requestListener.onNetworkRequested(requestBuilder.build(), NETWORK_SCORE, PROVIDER_ID);
requestListener.onNetworkRequested(requestBuilder.build());
mTestLooper.dispatchAll();
}