SubscriptionController notifies opportunistic subscription change. (80c9051e) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/SubscriptionController.java

+87 −50

Original line number	Diff line number	Diff line
		@@ -90,9 +90,15 @@ public class SubscriptionController extends ISub.Stub {
		private static final int DEPRECATED_SETTING = -1;
		private ScLocalLog mLocalLog = new ScLocalLog(MAX_LOCAL_LOG_LINES);

		// Lock that both mCacheActiveSubInfoList and mCacheOpportunisticSubInfoList use.
		private Object mSubInfoListLock = new Object();

		/* The Cache of Active SubInfoRecord(s) list of currently in use SubInfoRecord(s) */
		private final List<SubscriptionInfo> mCacheActiveSubInfoList = new ArrayList<>();

		/* Similar to mCacheActiveSubInfoList but only caching opportunistic subscriptions. */
		private List<SubscriptionInfo> mCacheOpportunisticSubInfoList = new ArrayList<>();

		/**
		* Copied from android.util.LocalLog with flush() adding flush and line number
		* TODO: Update LocalLog
		@@ -598,39 +604,7 @@ public class SubscriptionController extends ISub.Stub {
		*/
		@Override
		public List<SubscriptionInfo> getActiveSubscriptionInfoList(String callingPackage) {
		if (!isSubInfoReady()) {
		if (DBG) logdl("[getActiveSubInfoList] Sub Controller not ready");
		return null;
		}

		boolean canReadAllPhoneState;
		try {
		canReadAllPhoneState = TelephonyPermissions.checkReadPhoneState(mContext,
		SubscriptionManager.INVALID_SUBSCRIPTION_ID, Binder.getCallingPid(),
		Binder.getCallingUid(), callingPackage, "getActiveSubscriptionInfoList");
		} catch (SecurityException e) {
		canReadAllPhoneState = false;
		}

		synchronized (mCacheActiveSubInfoList) {
		// If the caller can read all phone state, just return the full list.
		if (canReadAllPhoneState) {
		return new ArrayList<>(mCacheActiveSubInfoList);
		}

		// Filter the list to only include subscriptions which the caller can manage.
		return mCacheActiveSubInfoList.stream()
		.filter(subscriptionInfo -> {
		try {
		return TelephonyPermissions.checkCallingOrSelfReadPhoneState(mContext,
		subscriptionInfo.getSubscriptionId(), callingPackage,
		"getActiveSubscriptionInfoList");
		} catch (SecurityException e) {
		return false;
		}
		})
		.collect(Collectors.toList());
		}
		return getSubscriptionInfoListFromCacheHelper(callingPackage, mCacheActiveSubInfoList);
		}

		/**
		@@ -646,7 +620,9 @@ public class SubscriptionController extends ISub.Stub {
		return;
		}

		synchronized (mCacheActiveSubInfoList) {
		boolean opptSubListChanged = false;

		synchronized (mSubInfoListLock) {
		mCacheActiveSubInfoList.clear();
		List<SubscriptionInfo> activeSubscriptionInfoList = getSubInfo(
		SubscriptionManager.SIM_SLOT_INDEX + ">=0", null);
		@@ -654,6 +630,10 @@ public class SubscriptionController extends ISub.Stub {
		activeSubscriptionInfoList.sort(SUBSCRIPTION_INFO_COMPARATOR);
		mCacheActiveSubInfoList.addAll(activeSubscriptionInfoList);
		}

		// Refresh cached opportunistic sub list and detect whether it's changed.
		opptSubListChanged = refreshCachedOpportunisticSubscriptionInfoList();

		if (DBG_CACHE) {
		if (!mCacheActiveSubInfoList.isEmpty()) {
		for (SubscriptionInfo si : mCacheActiveSubInfoList) {
		@@ -665,6 +645,11 @@ public class SubscriptionController extends ISub.Stub {
		}
		}
		}

		// Send notification outside synchronization.
		if (opptSubListChanged) {
		notifyOpportunisticSubscriptionInfoChanged();
		}
		}

		/**
		@@ -2308,29 +2293,46 @@ public class SubscriptionController extends ISub.Stub {

		@Override
		public List<SubscriptionInfo> getOpportunisticSubscriptions(int slotId, String callingPackage) {
		if (!TelephonyPermissions.checkCallingOrSelfReadPhoneState(mContext,
		SubscriptionManager.INVALID_SUBSCRIPTION_ID, callingPackage,
		"getOpportunisticSubscriptions")) {
		return null;
		return getSubscriptionInfoListFromCacheHelper(
		callingPackage, mCacheOpportunisticSubInfoList);
		}

		final long token = Binder.clearCallingIdentity();
		// Helper function of getOpportunisticSubscriptions and getActiveSubscriptionInfoList.
		// They are doing similar things except operating on different cache.
		private List<SubscriptionInfo> getSubscriptionInfoListFromCacheHelper(
		String callingPackage, List<SubscriptionInfo> cacheSubList) {
		if (!isSubInfoReady()) {
		if (DBG) logdl("[getSubscriptionInfoList] Sub Controller not ready");
		return null;
		}

		boolean canReadAllPhoneState;
		try {
		List<SubscriptionInfo> activeSubList = getActiveSubscriptionInfoList(callingPackage);
		List<SubscriptionInfo> opportunisticSubList = new ArrayList<>();

		if (activeSubList != null) {
		for (SubscriptionInfo subInfo : activeSubList) {
		if (subInfo.isOpportunistic() && subInfo.getSimSlotIndex() == slotId) {
		opportunisticSubList.add(subInfo);
		}
		canReadAllPhoneState = TelephonyPermissions.checkReadPhoneState(mContext,
		SubscriptionManager.INVALID_SUBSCRIPTION_ID, Binder.getCallingPid(),
		Binder.getCallingUid(), callingPackage, "getSubscriptionInfoList");
		} catch (SecurityException e) {
		canReadAllPhoneState = false;
		}

		synchronized (mSubInfoListLock) {
		// If the caller can read all phone state, just return the full list.
		if (canReadAllPhoneState) {
		return new ArrayList<>(cacheSubList);
		}

		return opportunisticSubList;
		} finally {
		Binder.restoreCallingIdentity(token);
		// Filter the list to only include subscriptions which the caller can manage.
		return cacheSubList.stream()
		.filter(subscriptionInfo -> {
		try {
		return TelephonyPermissions.checkCallingOrSelfReadPhoneState(mContext,
		subscriptionInfo.getSubscriptionId(), callingPackage,
		"getOpportunisticSubscriptions");
		} catch (SecurityException e) {
		return false;
		}
		})
		.collect(Collectors.toList());
		}
		}

		@@ -2348,4 +2350,39 @@ public class SubscriptionController extends ISub.Stub {
		}
		return false;
		}

		private void notifyOpportunisticSubscriptionInfoChanged() {
		ITelephonyRegistry tr = ITelephonyRegistry.Stub.asInterface(ServiceManager.getService(
		"telephony.registry"));
		try {
		if (DBG) logd("notifyOpptSubscriptionInfoChanged:");
		tr.notifyOpportunisticSubscriptionInfoChanged();
		} catch (RemoteException ex) {
		// Should never happen because its always available.
		}
		}


		private boolean refreshCachedOpportunisticSubscriptionInfoList() {
		synchronized (mSubInfoListLock) {
		List<SubscriptionInfo> oldOpptCachedList = mCacheOpportunisticSubInfoList;

		mCacheOpportunisticSubInfoList = mCacheActiveSubInfoList.stream()
		.filter(subscriptionInfo -> subscriptionInfo.isOpportunistic())
		.collect(Collectors.toList());

		if (DBG_CACHE) {
		if (!mCacheOpportunisticSubInfoList.isEmpty()) {
		for (SubscriptionInfo si : mCacheOpportunisticSubInfoList) {
		logd("[refreshCachedOpptSubscriptionInfoList] Setting Cached info="
		+ si);
		}
		} else {
		logdl("[refreshCachedOpptSubscriptionInfoList]- no info return");
		}
		}

		return oldOpptCachedList.equals(mCacheOpportunisticSubInfoList);
		}
		}
		}