Merge "Check condition displayable state in parallel." (8419e4d1) · Commits · e / os / android_packages_apps_Settings

src/com/android/settings/homepage/conditional/v2/ConditionManager.java

+45 −3

Original line number	Diff line number	Diff line
		@@ -28,6 +28,13 @@ import com.android.settings.homepage.conditional.ConditionListener;

		import java.util.ArrayList;
		import java.util.List;
		import java.util.concurrent.Callable;
		import java.util.concurrent.ExecutionException;
		import java.util.concurrent.ExecutorService;
		import java.util.concurrent.Executors;
		import java.util.concurrent.Future;
		import java.util.concurrent.TimeUnit;
		import java.util.concurrent.TimeoutException;

		public class ConditionManager {
		private static final String TAG = "ConditionManager";
		@@ -37,6 +44,9 @@ public class ConditionManager {
		@VisibleForTesting
		final List<ConditionalCardController> mCardControllers;

		private static final long DISPLAYABLE_CHECKER_TIMEOUT_MS = 20;

		private final ExecutorService mExecutorService;
		private final Context mAppContext;
		private final ConditionListener mListener;

		@@ -51,6 +61,7 @@ public class ConditionManager {

		public ConditionManager(Context context, ConditionListener listener) {
		mAppContext = context.getApplicationContext();
		mExecutorService = Executors.newCachedThreadPool();
		mCandidates = new ArrayList<>();
		mCardControllers = new ArrayList<>();
		mListener = listener;
		@@ -62,10 +73,24 @@ public class ConditionManager {
		*/
		public List<ConditionalCard> getDisplayableCards() {
		final List<ConditionalCard> cards = new ArrayList<>();
		final List<Future<ConditionalCard>> displayableCards = new ArrayList<>();
		// Check displayable future
		for (ConditionalCard card : mCandidates) {
		if (getController(card.getId()).isDisplayable()) {
		final DisplayableChecker future = new DisplayableChecker(
		card, getController(card.getId()));
		displayableCards.add(mExecutorService.submit(future));
		}
		// Collect future and add displayable cards
		for (Future<ConditionalCard> cardFuture : displayableCards) {
		try {
		final ConditionalCard card = cardFuture.get(DISPLAYABLE_CHECKER_TIMEOUT_MS,
		TimeUnit.MILLISECONDS);
		if (card != null) {
		cards.add(card);
		}
		} catch (InterruptedException \| ExecutionException \| TimeoutException e) {
		Log.w(TAG, "Failed to get displayable state for card, likely timeout. Skipping", e);
		}
		}
		return cards;
		}
		@@ -89,7 +114,6 @@ public class ConditionManager {
		onConditionChanged();
		}


		/**
		* Start monitoring state change for all conditions
		*/
		@@ -163,6 +187,24 @@ public class ConditionManager {
		mCandidates.add(new RingerMutedConditionCard(mAppContext));
		mCandidates.add(new RingerVibrateConditionCard(mAppContext));
		mCandidates.add(new WorkModeConditionCard(mAppContext));
		}

		/**
		* Returns card if controller says it's displayable. Otherwise returns null.
		*/
		public static class DisplayableChecker implements Callable<ConditionalCard> {

		private final ConditionalCard mCard;
		private final ConditionalCardController mController;

		private DisplayableChecker(ConditionalCard card, ConditionalCardController controller) {
		mCard = card;
		mController = controller;
		}

		@Override
		public ConditionalCard call() throws Exception {
		return mController.isDisplayable() ? mCard : null;
		}
		}
		}