Merge "Fix settings slice caching" into pi-dev (ab3aa698) · Commits · e / os / android_packages_apps_Settings

src/com/android/settings/slices/SettingsSliceProvider.java

+26 −4

Original line number	Diff line number	Diff line
		@@ -29,6 +29,7 @@ import android.provider.SettingsSlicesContract;
		import android.support.annotation.VisibleForTesting;
		import android.support.v4.graphics.drawable.IconCompat;
		import android.text.TextUtils;
		import android.util.ArrayMap;
		import android.util.Log;
		import android.util.Pair;

		@@ -38,6 +39,7 @@ import com.android.settingslib.utils.ThreadUtils;
		import java.net.URISyntaxException;
		import java.util.ArrayList;
		import java.util.Collection;
		import java.util.HashMap;
		import java.util.List;
		import java.util.Map;
		import java.util.WeakHashMap;
		@@ -111,12 +113,14 @@ public class SettingsSliceProvider extends SliceProvider {
		SlicesDatabaseAccessor mSlicesDatabaseAccessor;

		@VisibleForTesting
		Map<Uri, SliceData> mSliceWeakDataCache;
		Map<Uri, SliceData> mSliceDataCache;

		@Override
		public boolean onCreateSliceProvider() {
		mSlicesDatabaseAccessor = new SlicesDatabaseAccessor(getContext());
		mSliceDataCache = new WeakHashMap<>();
		mSliceDataCache = new ArrayMap<>();
		mSliceWeakDataCache = new WeakHashMap<>();
		return true;
		}

		@@ -131,6 +135,17 @@ public class SettingsSliceProvider extends SliceProvider {
		}
		}

		@Override
		public void onSlicePinned(Uri sliceUri) {
		// Start warming the slice, we expect someone will want it soon.
		loadSliceInBackground(sliceUri);
		}

		@Override
		public void onSliceUnpinned(Uri sliceUri) {
		mSliceDataCache.remove(sliceUri);
		}

		@Override
		public Slice onBindSlice(Uri sliceUri) {
		String path = sliceUri.getPath();
		@@ -141,14 +156,16 @@ public class SettingsSliceProvider extends SliceProvider {
		return createWifiSlice(sliceUri);
		}

		SliceData cachedSliceData = mSliceDataCache.get(sliceUri);
		SliceData cachedSliceData = mSliceWeakDataCache.get(sliceUri);
		if (cachedSliceData == null) {
		loadSliceInBackground(sliceUri);
		return getSliceStub(sliceUri);
		}

		// Remove the SliceData from the cache after it has been used to prevent a memory-leak.
		mSliceDataCache.remove(sliceUri);
		if (!mSliceDataCache.containsKey(sliceUri)) {
		mSliceWeakDataCache.remove(sliceUri);
		}
		return SliceBuilderUtils.buildSlice(getContext(), cachedSliceData);
		}

		@@ -236,7 +253,12 @@ public class SettingsSliceProvider extends SliceProvider {
		long startBuildTime = System.currentTimeMillis();

		final SliceData sliceData = mSlicesDatabaseAccessor.getSliceDataFromUri(uri);
		List<Uri> pinnedSlices = getContext().getSystemService(
		SliceManager.class).getPinnedSlices();
		if (pinnedSlices.contains(uri)) {
		mSliceDataCache.put(uri, sliceData);
		}
		mSliceWeakDataCache.put(uri, sliceData);
		getContext().getContentResolver().notifyChange(uri, null /* content observer */);

		Log.d(TAG, "Built slice (" + uri + ") in: " +

tests/robotests/src/com/android/settings/slices/SettingsSliceProviderTest.java

+48 −2

Original line number	Diff line number	Diff line
		@@ -21,9 +21,12 @@ import static android.content.ContentResolver.SCHEME_CONTENT;

		import static com.google.common.truth.Truth.assertThat;

		import static org.mockito.Mockito.doReturn;
		import static org.mockito.Mockito.mock;
		import static org.mockito.Mockito.spy;
		import static org.mockito.Mockito.when;

		import android.app.slice.SliceManager;
		import android.content.ContentResolver;
		import android.content.ContentValues;
		import android.content.Context;
		@@ -43,7 +46,9 @@ import org.robolectric.RuntimeEnvironment;

		import androidx.slice.Slice;

		import java.util.Arrays;
		import java.util.Collection;
		import java.util.Collections;
		import java.util.HashMap;

		/**
		@@ -65,17 +70,22 @@ public class SettingsSliceProviderTest {
		private Context mContext;
		private SettingsSliceProvider mProvider;
		private SQLiteDatabase mDb;
		private SliceManager mManager;

		@Before
		public void setUp() {
		mContext = spy(RuntimeEnvironment.application);
		mProvider = spy(new SettingsSliceProvider());
		mProvider.mSliceWeakDataCache = new HashMap<>();
		mProvider.mSliceDataCache = new HashMap<>();
		mProvider.mSlicesDatabaseAccessor = new SlicesDatabaseAccessor(mContext);
		when(mProvider.getContext()).thenReturn(mContext);

		mDb = SlicesDatabaseHelper.getInstance(mContext).getWritableDatabase();
		SlicesDatabaseHelper.getInstance(mContext).setIndexedState();
		mManager = mock(SliceManager.class);
		when(mContext.getSystemService(SliceManager.class)).thenReturn(mManager);
		when(mManager.getPinnedSlices()).thenReturn(Collections.emptyList());
		}

		@After
		@@ -98,6 +108,30 @@ public class SettingsSliceProviderTest {
		insertSpecialCase(KEY);
		Uri uri = SliceBuilderUtils.getUri(INTENT_PATH, false);

		mProvider.loadSlice(uri);
		SliceData data = mProvider.mSliceWeakDataCache.get(uri);

		assertThat(data.getKey()).isEqualTo(KEY);
		assertThat(data.getTitle()).isEqualTo(TITLE);
		}

		@Test
		public void testLoadSlice_doesntCacheWithoutPin() {
		insertSpecialCase(KEY);
		Uri uri = SliceBuilderUtils.getUri(INTENT_PATH, false);

		mProvider.loadSlice(uri);
		SliceData data = mProvider.mSliceDataCache.get(uri);

		assertThat(data).isNull();
		}

		@Test
		public void testLoadSlice_cachesWithPin() {
		insertSpecialCase(KEY);
		Uri uri = SliceBuilderUtils.getUri(INTENT_PATH, false);
		when(mManager.getPinnedSlices()).thenReturn(Arrays.asList(uri));

		mProvider.loadSlice(uri);
		SliceData data = mProvider.mSliceDataCache.get(uri);

		@@ -108,11 +142,23 @@ public class SettingsSliceProviderTest {
		@Test
		public void testLoadSlice_cachedEntryRemovedOnBuild() {
		SliceData data = getDummyData();
		mProvider.mSliceDataCache.put(data.getUri(), data);
		mProvider.mSliceWeakDataCache.put(data.getUri(), data);
		mProvider.onBindSlice(data.getUri());
		insertSpecialCase(data.getKey());

		SliceData cachedData = mProvider.mSliceDataCache.get(data.getUri());
		SliceData cachedData = mProvider.mSliceWeakDataCache.get(data.getUri());

		assertThat(cachedData).isNull();
		}

		@Test
		public void testLoadSlice_cachedEntryRemovedOnUnpin() {
		SliceData data = getDummyData();
		mProvider.mSliceDataCache.put(data.getUri(), data);
		mProvider.onSliceUnpinned(data.getUri());
		insertSpecialCase(data.getKey());

		SliceData cachedData = mProvider.mSliceWeakDataCache.get(data.getUri());

		assertThat(cachedData).isNull();
		}