Merge "Refactor to SimChangeListener class" am: a12217012e (6dacd5ec) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/connectivity/Tethering.java

+98 −67

Original line number	Diff line number	Diff line
		@@ -1345,12 +1345,25 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
		}
		}

		private final AtomicInteger mSimBcastGenerationNumber = new AtomicInteger(0);
		private SimChangeBroadcastReceiver mBroadcastReceiver = null;
		private class SimChangeListener {
		private final Context mContext;
		private final AtomicInteger mSimBcastGenerationNumber;
		private BroadcastReceiver mBroadcastReceiver;

		SimChangeListener(Context ctx) {
		mContext = ctx;
		mSimBcastGenerationNumber = new AtomicInteger(0);
		}

		public int generationNumber() {
		return mSimBcastGenerationNumber.get();
		}

		public void startListening() {
		if (DBG) Log.d(TAG, "startListening for SIM changes");

		if (mBroadcastReceiver != null) return;

		private void startListeningForSimChanges() {
		if (DBG) Log.d(TAG, "startListeningForSimChanges");
		if (mBroadcastReceiver == null) {
		mBroadcastReceiver = new SimChangeBroadcastReceiver(
		mSimBcastGenerationNumber.incrementAndGet());
		final IntentFilter filter = new IntentFilter();
		@@ -1359,18 +1372,46 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
		mContext.registerReceiver(mBroadcastReceiver, filter, null,
		mTetherMasterSM.getHandler());
		}
		}

		private void stopListeningForSimChanges() {
		if (DBG) Log.d(TAG, "stopListeningForSimChanges");
		if (mBroadcastReceiver != null) {
		public void stopListening() {
		if (DBG) Log.d(TAG, "stopListening for SIM changes");

		if (mBroadcastReceiver == null) return;

		mSimBcastGenerationNumber.incrementAndGet();
		mContext.unregisterReceiver(mBroadcastReceiver);
		mBroadcastReceiver = null;
		}

		public boolean hasMobileHotspotProvisionApp() {
		try {
		if (!mContext.getResources().getString(com.android.internal.R.string.
		config_mobile_hotspot_provision_app_no_ui).isEmpty()) {
		Log.d(TAG, "re-evaluate provisioning");
		return true;
		}
		} catch (Resources.NotFoundException e) {}
		Log.d(TAG, "no prov-check needed for new SIM");
		return false;
		}

		private boolean isSimCardAbsent(String state) {
		return IccCardConstants.INTENT_VALUE_ICC_ABSENT.equals(state);
		}

		private boolean isSimCardLoaded(String state) {
		return IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(state);
		}

		class SimChangeBroadcastReceiver extends BroadcastReceiver {
		private void startProvisionIntent(int tetherType) {
		final Intent startProvIntent = new Intent();
		startProvIntent.putExtra(ConnectivityManager.EXTRA_ADD_TETHER_TYPE, tetherType);
		startProvIntent.putExtra(ConnectivityManager.EXTRA_RUN_PROVISION, true);
		startProvIntent.setComponent(TETHER_SERVICE);
		mContext.startServiceAsUser(startProvIntent, UserHandle.CURRENT);
		}

		private class SimChangeBroadcastReceiver extends BroadcastReceiver {
		// used to verify this receiver is still current
		final private int mGenerationNumber;

		@@ -1379,38 +1420,39 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
		private boolean mSimAbsentSeen = false;

		public SimChangeBroadcastReceiver(int generationNumber) {
		super();
		mGenerationNumber = generationNumber;
		}

		@Override
		public void onReceive(Context context, Intent intent) {
		final int currentGenerationNumber = mSimBcastGenerationNumber.get();

		if (DBG) {
		Log.d(TAG, "simchange mGenerationNumber=" + mGenerationNumber +
		", current generationNumber=" + mSimBcastGenerationNumber.get());
		", current generationNumber=" + currentGenerationNumber);
		}
		if (mGenerationNumber != mSimBcastGenerationNumber.get()) return;

		final String state =
		intent.getStringExtra(IccCardConstants.INTENT_KEY_ICC_STATE);
		if (mGenerationNumber != currentGenerationNumber) return;

		final String state = intent.getStringExtra(
		IccCardConstants.INTENT_KEY_ICC_STATE);
		Log.d(TAG, "got Sim changed to state " + state + ", mSimAbsentSeen=" +
		mSimAbsentSeen);
		if (!mSimAbsentSeen && IccCardConstants.INTENT_VALUE_ICC_ABSENT.equals(state)) {
		mSimAbsentSeen = true;

		if (isSimCardAbsent(state)) {
		if (!mSimAbsentSeen) mSimAbsentSeen = true;
		return;
		}

		if (mSimAbsentSeen && IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(state)) {
		if (isSimCardLoaded(state) && mSimAbsentSeen) {
		mSimAbsentSeen = false;
		try {
		if (mContext.getResources().getString(com.android.internal.R.string.
		config_mobile_hotspot_provision_app_no_ui).isEmpty() == false) {

		if (!hasMobileHotspotProvisionApp()) return;

		ArrayList<Integer> tethered = new ArrayList<Integer>();
		synchronized (mPublicSync) {
		for (int i = 0; i < mTetherStates.size(); i++) {
		TetherState tetherState = mTetherStates.valueAt(i);
		if (tetherState.mLastState !=
		IControlsTethering.STATE_TETHERED) {
		if (tetherState.mLastState != IControlsTethering.STATE_TETHERED) {
		continue; // Skip interfaces that aren't tethered.
		}
		String iface = mTetherStates.keyAt(i);
		@@ -1420,22 +1462,10 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
		}
		}
		}

		for (int tetherType : tethered) {
		Intent startProvIntent = new Intent();
		startProvIntent.putExtra(
		ConnectivityManager.EXTRA_ADD_TETHER_TYPE, tetherType);
		startProvIntent.putExtra(
		ConnectivityManager.EXTRA_RUN_PROVISION, true);
		startProvIntent.setComponent(TETHER_SERVICE);
		mContext.startServiceAsUser(startProvIntent, UserHandle.CURRENT);
		startProvisionIntent(tetherType);
		}
		Log.d(TAG, "re-evaluate provisioning");
		} else {
		Log.d(TAG, "no prov-check needed for new SIM");
		}
		} catch (Resources.NotFoundException e) {
		Log.d(TAG, "no prov-check needed for new SIM");
		// not defined, do nothing
		}
		}
		}
		@@ -1471,12 +1501,13 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
		}

		class TetherModeAliveState extends TetherMasterUtilState {
		final SimChangeListener simChange = new SimChangeListener(mContext);
		boolean mTryCell = true;
		@Override
		public void enter() {
		// TODO: examine if we should check the return value.
		turnOnMasterTetherSettings(); // may transition us out
		startListeningForSimChanges();
		simChange.startListening();
		mUpstreamNetworkMonitor.start();

		mTryCell = true; // better try something first pass or crazy tests cases will fail
		@@ -1488,7 +1519,7 @@ public class Tethering extends BaseNetworkObserver implements IControlsTethering
		public void exit() {
		unrequestUpstreamMobileConnection();
		mUpstreamNetworkMonitor.stop();
		stopListeningForSimChanges();
		simChange.stopListening();
		notifyTetheredOfNewUpstreamIface(null);
		handleNewUpstreamNetworkState(null);
		}