Merge "Fixed handover not working issue" (701c630c) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/dataconnection/AccessNetworksManager.java

+22 −4

Original line number	Diff line number	Diff line
		@@ -16,16 +16,17 @@

		package com.android.internal.telephony.dataconnection;

		import android.annotation.NonNull;
		import android.content.BroadcastReceiver;
		import android.content.ComponentName;
		import android.content.Context;
		import android.content.Intent;
		import android.content.IntentFilter;
		import android.content.ServiceConnection;
		import android.os.AsyncResult;
		import android.os.Handler;
		import android.os.IBinder;
		import android.os.PersistableBundle;
		import android.os.Registrant;
		import android.os.RegistrantList;
		import android.os.RemoteException;
		import android.os.UserHandle;
		@@ -191,8 +192,7 @@ public class AccessNetworksManager {
		}

		if (!qualifiedNetworksList.isEmpty()) {
		mQualifiedNetworksChangedRegistrants.notifyRegistrants(
		new AsyncResult(null, qualifiedNetworksList, null));
		mQualifiedNetworksChangedRegistrants.notifyResult(qualifiedNetworksList);
		}
		}
		}
		@@ -290,6 +290,17 @@ public class AccessNetworksManager {
		return packageName;
		}


		private @NonNull List<QualifiedNetworks> getQualifiedNetworksList() {
		List<QualifiedNetworks> qualifiedNetworksList = new ArrayList<>();
		for (int i = 0; i < mAvailableNetworks.size(); i++) {
		qualifiedNetworksList.add(new QualifiedNetworks(mAvailableNetworks.keyAt(i),
		mAvailableNetworks.valueAt(i)));
		}

		return qualifiedNetworksList;
		}

		/**
		* Register for qualified networks changed event.
		*
		@@ -298,7 +309,14 @@ public class AccessNetworksManager {
		*/
		public void registerForQualifiedNetworksChanged(Handler h, int what) {
		if (h != null) {
		mQualifiedNetworksChangedRegistrants.addUnique(h, what, null);
		Registrant r = new Registrant(h, what, null);
		mQualifiedNetworksChangedRegistrants.add(r);

		// Notify for the first time if there is already something in the available network
		// list.
		if (mAvailableNetworks.size() != 0) {
		r.notifyResult(getQualifiedNetworksList());
		}
		}
		}

src/java/com/android/internal/telephony/dataconnection/TransportManager.java

+13 −6

Original line number	Diff line number	Diff line
		@@ -29,6 +29,7 @@ import android.telephony.Rlog;
		import android.telephony.data.ApnSetting;
		import android.telephony.data.ApnSetting.ApnType;

		import com.android.internal.annotations.VisibleForTesting;
		import com.android.internal.telephony.Phone;
		import com.android.internal.telephony.dataconnection.AccessNetworksManager.QualifiedNetworks;
		import com.android.internal.util.ArrayUtils;
		@@ -122,7 +123,11 @@ public class TransportManager extends Handler {
		*/
		private final RegistrantList mHandoverNeededEventRegistrants;

		static final class HandoverParams {
		/**
		* Handover parameters
		*/
		@VisibleForTesting
		public static final class HandoverParams {
		public final @ApnType int apnType;
		public final int targetTransport;
		HandoverParams(int apnType, int targetTransport) {
		@@ -134,10 +139,6 @@ public class TransportManager extends Handler {
		public TransportManager(Phone phone) {
		mPhone = phone;
		mAccessNetworksManager = new AccessNetworksManager(phone);

		mAccessNetworksManager.registerForQualifiedNetworksChanged(this,
		EVENT_QUALIFIED_NETWORKS_CHANGED);

		mCurrentAvailableNetworks = new ConcurrentHashMap<>();
		mCurrentTransports = new ConcurrentHashMap<>();
		mHandoverNeededEventRegistrants = new RegistrantList();
		@@ -147,6 +148,8 @@ public class TransportManager extends Handler {
		// the IWLAN ones.
		mAvailableTransports = new int[]{TransportType.WWAN};
		} else {
		mAccessNetworksManager.registerForQualifiedNetworksChanged(this,
		EVENT_QUALIFIED_NETWORKS_CHANGED);
		mAvailableTransports = new int[]{TransportType.WWAN, TransportType.WLAN};
		}
		}
		@@ -211,14 +214,17 @@ public class TransportManager extends Handler {
		log("updateAvailableNetworks: " + networksList);
		for (QualifiedNetworks networks : networksList) {
		if (areNetworksValid(networks)) {
		mCurrentAvailableNetworks.put(networks.apnType, networks.qualifiedNetworks);
		if (isHandoverNeeded(networks)) {
		mCurrentAvailableNetworks.put(networks.apnType, networks.qualifiedNetworks);
		// If handover is needed, perform the handover works. For now we only pick the
		// first element because it's the most preferred. In the future we should also
		// consider the rest in the list, for example, the first one violates
		// carrier/user policy.
		int targetTransport = ACCESS_NETWORK_TRANSPORT_TYPE_MAP.get(
		networks.qualifiedNetworks[0]);
		log("Handover needed for APN type: "
		+ ApnSetting.getApnTypeString(networks.apnType) + ", target transport: "
		+ TransportType.toString(targetTransport));
		mHandoverNeededEventRegistrants.notifyResult(
		new HandoverParams(networks.apnType, targetTransport));

		@@ -227,6 +233,7 @@ public class TransportManager extends Handler {
		// transport.
		log("Handover not needed for APN type: "
		+ ApnSetting.getApnTypeString(networks.apnType));
		mCurrentAvailableNetworks.put(networks.apnType, networks.qualifiedNetworks);
		int transport = TransportType.WWAN;
		if (!ArrayUtils.isEmpty(networks.qualifiedNetworks)
		&& ACCESS_NETWORK_TRANSPORT_TYPE_MAP.containsKey(

tests/telephonytests/src/com/android/internal/telephony/dataconnection/TransportManagerTest.java

0 → 100644

+175 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2019 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package com.android.internal.telephony.dataconnection;

		import static com.android.internal.telephony.TelephonyTestUtils.waitForMs;

		import static org.junit.Assert.assertEquals;
		import static org.mockito.ArgumentMatchers.any;
		import static org.mockito.Matchers.anyLong;
		import static org.mockito.Mockito.never;
		import static org.mockito.Mockito.times;
		import static org.mockito.Mockito.verify;

		import android.os.AsyncResult;
		import android.os.Handler;
		import android.os.HandlerThread;
		import android.os.Message;
		import android.telephony.AccessNetworkConstants.AccessNetworkType;
		import android.telephony.AccessNetworkConstants.TransportType;
		import android.telephony.data.ApnSetting;
		import android.test.suitebuilder.annotation.SmallTest;

		import com.android.internal.telephony.TelephonyTest;
		import com.android.internal.telephony.dataconnection.AccessNetworksManager.QualifiedNetworks;
		import com.android.internal.telephony.dataconnection.TransportManager.HandoverParams;

		import org.junit.After;
		import org.junit.Before;
		import org.junit.Test;
		import org.mockito.ArgumentCaptor;
		import org.mockito.Mock;

		import java.util.ArrayList;
		import java.util.Arrays;
		import java.util.List;

		public class TransportManagerTest extends TelephonyTest {
		private static final int EVENT_HANDOVER_NEEDED = 1;

		@Mock
		private Handler mTestHandler;

		private TransportManager mTransportManager;

		private TransportManagerTestHandler mTransportManagerTestHandler;

		private class TransportManagerTestHandler extends HandlerThread {

		private TransportManagerTestHandler(String name) {
		super(name);
		}

		@Override
		public void onLooperPrepared() {
		mTransportManager = new TransportManager(mPhone);
		setReady(true);
		}
		}

		@Before
		public void setUp() throws Exception {
		super.setUp(getClass().getSimpleName());
		mTransportManagerTestHandler = new TransportManagerTestHandler(TAG);
		mTransportManagerTestHandler.start();
		waitUntilReady();
		}

		@After
		public void tearDown() throws Exception {
		mTransportManagerTestHandler.quit();
		mTransportManagerTestHandler.join();
		super.tearDown();
		}

		@Test
		@SmallTest
		public void testHandoverNeeded() throws Exception {
		mTransportManager.registerForHandoverNeededEvent(mTestHandler, EVENT_HANDOVER_NEEDED);

		// Initial qualified networks
		List<QualifiedNetworks> networkList = new ArrayList<>(Arrays.asList(
		new QualifiedNetworks(ApnSetting.TYPE_IMS,
		new int[]{AccessNetworkType.EUTRAN, AccessNetworkType.UTRAN,
		AccessNetworkType.IWLAN})));
		mTransportManager.obtainMessage(1 /* EVENT_QUALIFIED_NETWORKS_CHANGED */,
		new AsyncResult(null, networkList, null)).sendToTarget();
		waitForMs(100);
		// Verify handover needed event was not sent
		verify(mTestHandler, never()).sendMessageAtTime(any(Message.class), anyLong());

		// Now change the order of qualified networks by putting IWLAN first
		networkList = new ArrayList<>(Arrays.asList(
		new QualifiedNetworks(ApnSetting.TYPE_IMS,
		new int[]{AccessNetworkType.IWLAN, AccessNetworkType.UTRAN,
		AccessNetworkType.EUTRAN})));
		mTransportManager.obtainMessage(1 /* EVENT_QUALIFIED_NETWORKS_CHANGED */,
		new AsyncResult(null, networkList, null)).sendToTarget();
		waitForMs(100);

		ArgumentCaptor<Message> messageArgumentCaptor = ArgumentCaptor.forClass(Message.class);

		// Verify handover needed event was sent and the the target transport is WLAN.
		verify(mTestHandler, times(1)).sendMessageAtTime(messageArgumentCaptor.capture(),
		anyLong());
		Message message = messageArgumentCaptor.getValue();
		assertEquals(EVENT_HANDOVER_NEEDED, message.what);
		AsyncResult ar = (AsyncResult) message.obj;
		HandoverParams params = (HandoverParams) ar.result;
		assertEquals(ApnSetting.TYPE_IMS, params.apnType);
		assertEquals(TransportType.WLAN, params.targetTransport);

		// Now change the order of qualified networks by putting UTRAN first
		networkList = new ArrayList<>(Arrays.asList(
		new QualifiedNetworks(ApnSetting.TYPE_IMS,
		new int[]{AccessNetworkType.UTRAN, AccessNetworkType.EUTRAN,
		AccessNetworkType.IWLAN})));
		mTransportManager.obtainMessage(1 /* EVENT_QUALIFIED_NETWORKS_CHANGED */,
		new AsyncResult(null, networkList, null)).sendToTarget();
		waitForMs(100);

		messageArgumentCaptor = ArgumentCaptor.forClass(Message.class);

		// Verify handover needed event was sent and the the target transport is WWAN.
		verify(mTestHandler, times(2)).sendMessageAtTime(messageArgumentCaptor.capture(),
		anyLong());
		message = messageArgumentCaptor.getValue();
		assertEquals(EVENT_HANDOVER_NEEDED, message.what);
		ar = (AsyncResult) message.obj;
		params = (HandoverParams) ar.result;
		assertEquals(ApnSetting.TYPE_IMS, params.apnType);
		assertEquals(TransportType.WWAN, params.targetTransport);
		}

		@Test
		@SmallTest
		public void testHandoverNotNeeded() throws Exception {
		mTransportManager.registerForHandoverNeededEvent(mTestHandler, EVENT_HANDOVER_NEEDED);

		// Initial qualified networks
		List<QualifiedNetworks> networkList = new ArrayList<>(Arrays.asList(
		new QualifiedNetworks(ApnSetting.TYPE_IMS,
		new int[]{AccessNetworkType.EUTRAN, AccessNetworkType.UTRAN,
		AccessNetworkType.IWLAN})));
		mTransportManager.obtainMessage(1 /* EVENT_QUALIFIED_NETWORKS_CHANGED */,
		new AsyncResult(null, networkList, null)).sendToTarget();
		waitForMs(100);
		// Verify handover needed event was not sent
		verify(mTestHandler, never()).sendMessageAtTime(any(Message.class), anyLong());

		// Now change the order of qualified networks by swapping EUTRAN and UTRAN.
		networkList = new ArrayList<>(Arrays.asList(
		new QualifiedNetworks(ApnSetting.TYPE_IMS,
		new int[]{AccessNetworkType.UTRAN, AccessNetworkType.EUTRAN,
		AccessNetworkType.IWLAN})));
		mTransportManager.obtainMessage(1 /* EVENT_QUALIFIED_NETWORKS_CHANGED */,
		new AsyncResult(null, networkList, null)).sendToTarget();
		waitForMs(100);
		// Verify handover needed event was not sent
		verify(mTestHandler, never()).sendMessageAtTime(any(Message.class), anyLong());
		}
		}