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Commit a13887fa authored by Jeff Sharkey's avatar Jeff Sharkey
Browse files

Replace ContentInterface with wrapping. 

After much discussion, we can't safely introduce ContentInterface,
so instead offer ContentResolver.wrap() methods.

Bug: 120974438
Test: manual
Change-Id: I0b399192a19948a8986146efa916375022c38b59
parent 9f5521ad

api/current.txt

+18 −46
Original line number Diff line number Diff line
@@ -9346,25 +9346,7 @@ package android.content { 
    field public static final android.os.Parcelable.Creator<android.content.ComponentName> CREATOR;

  }













  public interface ContentInterface {













    method @NonNull public android.content.ContentProviderResult[] applyBatch(@NonNull String, @NonNull java.util.ArrayList<android.content.ContentProviderOperation>) throws android.content.OperationApplicationException, android.os.RemoteException;













    method public int bulkInsert(@NonNull android.net.Uri, @NonNull android.content.ContentValues[]) throws android.os.RemoteException;













    method @Nullable public android.os.Bundle call(@NonNull String, @NonNull String, @Nullable String, @Nullable android.os.Bundle) throws android.os.RemoteException;













    method @Nullable public android.net.Uri canonicalize(@NonNull android.net.Uri) throws android.os.RemoteException;













    method public int delete(@NonNull android.net.Uri, @Nullable String, @Nullable String[]) throws android.os.RemoteException;













    method @Nullable public String[] getStreamTypes(@NonNull android.net.Uri, @NonNull String) throws android.os.RemoteException;













    method @Nullable public String getType(@NonNull android.net.Uri) throws android.os.RemoteException;













    method @Nullable public android.net.Uri insert(@NonNull android.net.Uri, @Nullable android.content.ContentValues) throws android.os.RemoteException;













    method @Nullable public android.content.res.AssetFileDescriptor openAssetFile(@NonNull android.net.Uri, @NonNull String, @Nullable android.os.CancellationSignal) throws java.io.FileNotFoundException, android.os.RemoteException;













    method @Nullable public android.os.ParcelFileDescriptor openFile(@NonNull android.net.Uri, @NonNull String, @Nullable android.os.CancellationSignal) throws java.io.FileNotFoundException, android.os.RemoteException;













    method @Nullable public android.content.res.AssetFileDescriptor openTypedAssetFile(@NonNull android.net.Uri, @NonNull String, @Nullable android.os.Bundle, @Nullable android.os.CancellationSignal) throws java.io.FileNotFoundException, android.os.RemoteException;













    method @Nullable public android.database.Cursor query(@NonNull android.net.Uri, @Nullable String[], @Nullable android.os.Bundle, @Nullable android.os.CancellationSignal) throws android.os.RemoteException;













    method public boolean refresh(@NonNull android.net.Uri, @Nullable android.os.Bundle, @Nullable android.os.CancellationSignal) throws android.os.RemoteException;













    method @Nullable public android.net.Uri uncanonicalize(@NonNull android.net.Uri) throws android.os.RemoteException;













    method public int update(@NonNull android.net.Uri, @Nullable android.content.ContentValues, @Nullable String, @Nullable String[]) throws android.os.RemoteException;













  }

























  public abstract class ContentProvider implements android.content.ComponentCallbacks2 android.content.ContentInterface {













  public abstract class ContentProvider implements android.content.ComponentCallbacks2 {















    ctor public ContentProvider();















    method @NonNull public android.content.ContentProviderResult[] applyBatch(@NonNull String, @NonNull java.util.ArrayList<android.content.ContentProviderOperation>) throws android.content.OperationApplicationException;















    method @NonNull public android.content.ContentProviderResult[] applyBatch(@NonNull java.util.ArrayList<android.content.ContentProviderOperation>) throws android.content.OperationApplicationException;










@@ -9417,7 +9399,7 @@ package android.content {













    method public void writeDataToPipe(@NonNull android.os.ParcelFileDescriptor, @NonNull android.net.Uri, @NonNull String, @Nullable android.os.Bundle, @Nullable T);















  }



























  public class ContentProviderClient implements java.lang.AutoCloseable android.content.ContentInterface {













  public class ContentProviderClient implements java.lang.AutoCloseable {















    method @NonNull public android.content.ContentProviderResult[] applyBatch(@NonNull java.util.ArrayList<android.content.ContentProviderOperation>) throws android.content.OperationApplicationException, android.os.RemoteException;















    method @NonNull public android.content.ContentProviderResult[] applyBatch(@NonNull String, @NonNull java.util.ArrayList<android.content.ContentProviderOperation>) throws android.content.OperationApplicationException, android.os.RemoteException;















    method public int bulkInsert(@NonNull android.net.Uri, @NonNull android.content.ContentValues[]) throws android.os.RemoteException;










@@ -9500,8 +9482,8 @@ package android.content {













    method public void setKeepUpdated(boolean);















  }



























  public abstract class ContentResolver implements android.content.ContentInterface {













    ctor public ContentResolver(android.content.Context);













  public abstract class ContentResolver {













    ctor public ContentResolver(@Nullable android.content.Context);















    method @Nullable public final android.content.ContentProviderClient acquireContentProviderClient(@NonNull android.net.Uri);















    method @Nullable public final android.content.ContentProviderClient acquireContentProviderClient(@NonNull String);















    method @Nullable public final android.content.ContentProviderClient acquireUnstableContentProviderClient(@NonNull android.net.Uri);










@@ -9566,6 +9548,8 @@ package android.content {













    method public final void unregisterContentObserver(@NonNull android.database.ContentObserver);















    method public final int update(@RequiresPermission.Write @NonNull android.net.Uri, @Nullable android.content.ContentValues, @Nullable String, @Nullable String[]);















    method public static void validateSyncExtrasBundle(android.os.Bundle);













    method public static android.content.ContentResolver wrap(@NonNull android.content.ContentProvider);













    method public static android.content.ContentResolver wrap(@NonNull android.content.ContentProviderClient);















    field public static final String ANY_CURSOR_ITEM_TYPE = "vnd.android.cursor.item/*";















    field public static final String CURSOR_DIR_BASE_TYPE = "vnd.android.cursor.dir";















    field public static final String CURSOR_ITEM_BASE_TYPE = "vnd.android.cursor.item";










@@ -38168,38 +38152,26 @@ package android.provider {













    method public static android.net.Uri buildRootsUri(String);















    method public static android.net.Uri buildSearchDocumentsUri(String, String, String);















    method public static android.net.Uri buildTreeDocumentUri(String, String);













    method public static android.net.Uri copyDocument(android.content.ContentInterface, android.net.Uri, android.net.Uri) throws java.io.FileNotFoundException;













    method @Deprecated public static android.net.Uri copyDocument(android.content.ContentResolver, android.net.Uri, android.net.Uri) throws java.io.FileNotFoundException;













    method public static android.net.Uri createDocument(android.content.ContentInterface, android.net.Uri, String, String) throws java.io.FileNotFoundException;













    method @Deprecated public static android.net.Uri createDocument(android.content.ContentResolver, android.net.Uri, String, String) throws java.io.FileNotFoundException;













    method public static android.content.IntentSender createWebLinkIntent(android.content.ContentInterface, android.net.Uri, android.os.Bundle) throws java.io.FileNotFoundException;













    method @Deprecated public static android.content.IntentSender createWebLinkIntent(android.content.ContentResolver, android.net.Uri, android.os.Bundle) throws java.io.FileNotFoundException;













    method public static boolean deleteDocument(android.content.ContentInterface, android.net.Uri) throws java.io.FileNotFoundException;













    method @Deprecated public static boolean deleteDocument(android.content.ContentResolver, android.net.Uri) throws java.io.FileNotFoundException;













    method public static void ejectRoot(android.content.ContentInterface, android.net.Uri);













    method @Deprecated public static void ejectRoot(android.content.ContentResolver, android.net.Uri);













    method public static android.provider.DocumentsContract.Path findDocumentPath(android.content.ContentInterface, android.net.Uri) throws java.io.FileNotFoundException;













    method @Deprecated public static android.provider.DocumentsContract.Path findDocumentPath(android.content.ContentResolver, android.net.Uri) throws java.io.FileNotFoundException;













    method @Nullable public static android.net.Uri copyDocument(@NonNull android.content.ContentResolver, @NonNull android.net.Uri, @NonNull android.net.Uri) throws java.io.FileNotFoundException;













    method @Nullable public static android.net.Uri createDocument(@NonNull android.content.ContentResolver, @NonNull android.net.Uri, @NonNull String, @NonNull String) throws java.io.FileNotFoundException;













    method @Nullable public static android.content.IntentSender createWebLinkIntent(@NonNull android.content.ContentResolver, @NonNull android.net.Uri, @Nullable android.os.Bundle) throws java.io.FileNotFoundException;













    method public static boolean deleteDocument(@NonNull android.content.ContentResolver, @NonNull android.net.Uri) throws java.io.FileNotFoundException;













    method public static void ejectRoot(@NonNull android.content.ContentResolver, @NonNull android.net.Uri);













    method @Nullable public static android.provider.DocumentsContract.Path findDocumentPath(@NonNull android.content.ContentResolver, @NonNull android.net.Uri) throws java.io.FileNotFoundException;















    method public static String getDocumentId(android.net.Uri);













    method @Nullable public static android.os.Bundle getDocumentMetadata(@NonNull android.content.ContentInterface, @NonNull android.net.Uri) throws java.io.FileNotFoundException;













    method @Deprecated public static android.os.Bundle getDocumentMetadata(android.content.ContentResolver, android.net.Uri) throws java.io.FileNotFoundException;













    method public static android.graphics.Bitmap getDocumentThumbnail(android.content.ContentInterface, android.net.Uri, android.graphics.Point, android.os.CancellationSignal) throws java.io.FileNotFoundException;













    method @Deprecated public static android.graphics.Bitmap getDocumentThumbnail(android.content.ContentResolver, android.net.Uri, android.graphics.Point, android.os.CancellationSignal) throws java.io.FileNotFoundException;













    method @Nullable public static android.os.Bundle getDocumentMetadata(@NonNull android.content.ContentResolver, @NonNull android.net.Uri) throws java.io.FileNotFoundException;













    method @Nullable public static android.graphics.Bitmap getDocumentThumbnail(@NonNull android.content.ContentResolver, @NonNull android.net.Uri, @NonNull android.graphics.Point, @Nullable android.os.CancellationSignal) throws java.io.FileNotFoundException;















    method public static String getRootId(android.net.Uri);















    method public static String getSearchDocumentsQuery(android.net.Uri);















    method public static String getTreeDocumentId(android.net.Uri);













    method public static boolean isChildDocument(@NonNull android.content.ContentInterface, @NonNull android.net.Uri, @NonNull android.net.Uri) throws java.io.FileNotFoundException;













    method @Deprecated public static boolean isChildDocument(android.content.ContentResolver, android.net.Uri, android.net.Uri) throws java.io.FileNotFoundException;













    method public static boolean isChildDocument(@NonNull android.content.ContentResolver, @NonNull android.net.Uri, @NonNull android.net.Uri) throws java.io.FileNotFoundException;















    method public static boolean isDocumentUri(android.content.Context, @Nullable android.net.Uri);















    method public static boolean isRootUri(@NonNull android.content.Context, @Nullable android.net.Uri);















    method public static boolean isRootsUri(@NonNull android.content.Context, @Nullable android.net.Uri);















    method public static boolean isTreeUri(android.net.Uri);













    method public static android.net.Uri moveDocument(android.content.ContentInterface, android.net.Uri, android.net.Uri, android.net.Uri) throws java.io.FileNotFoundException;













    method @Deprecated public static android.net.Uri moveDocument(android.content.ContentResolver, android.net.Uri, android.net.Uri, android.net.Uri) throws java.io.FileNotFoundException;













    method public static boolean removeDocument(android.content.ContentInterface, android.net.Uri, android.net.Uri) throws java.io.FileNotFoundException;













    method @Deprecated public static boolean removeDocument(android.content.ContentResolver, android.net.Uri, android.net.Uri) throws java.io.FileNotFoundException;













    method public static android.net.Uri renameDocument(android.content.ContentInterface, android.net.Uri, String) throws java.io.FileNotFoundException;













    method @Deprecated public static android.net.Uri renameDocument(android.content.ContentResolver, android.net.Uri, String) throws java.io.FileNotFoundException;













    method @Nullable public static android.net.Uri moveDocument(@NonNull android.content.ContentResolver, @NonNull android.net.Uri, @NonNull android.net.Uri, @NonNull android.net.Uri) throws java.io.FileNotFoundException;













    method public static boolean removeDocument(@NonNull android.content.ContentResolver, @NonNull android.net.Uri, @NonNull android.net.Uri) throws java.io.FileNotFoundException;













    method @Nullable public static android.net.Uri renameDocument(@NonNull android.content.ContentResolver, @NonNull android.net.Uri, @NonNull String) throws java.io.FileNotFoundException;















    field public static final String ACTION_DOCUMENT_SETTINGS = "android.provider.action.DOCUMENT_SETTINGS";















    field public static final String EXTRA_ERROR = "error";















    field public static final String EXTRA_EXCLUDE_SELF = "android.provider.extra.EXCLUDE_SELF";

























api/system-current.txt



+2
−2




























Original line number
Diff line number
Diff line








@@ -1283,11 +1283,11 @@ package android.bluetooth.le {



























package android.content {



























  public class ContentProviderClient implements java.lang.AutoCloseable android.content.ContentInterface {













  public class ContentProviderClient implements java.lang.AutoCloseable {















    method @RequiresPermission(android.Manifest.permission.REMOVE_TASKS) public void setDetectNotResponding(long);















  }



























  public abstract class ContentResolver implements android.content.ContentInterface {













  public abstract class ContentResolver {















    method public android.os.Bundle getCache(android.net.Uri);















    method public android.graphics.drawable.Drawable getTypeDrawable(String);















    method public void putCache(android.net.Uri, android.os.Bundle);

































api/test-current.txt



+2
−2




























Original line number
Diff line number
Diff line








@@ -472,11 +472,11 @@ package android.bluetooth {





























package android.content {





























  public class ContentProviderClient implements java.lang.AutoCloseable android.content.ContentInterface {













  public class ContentProviderClient implements java.lang.AutoCloseable {















    method @RequiresPermission(android.Manifest.permission.REMOVE_TASKS) public void setDetectNotResponding(long);















  }





























  public abstract class ContentResolver implements android.content.ContentInterface {













  public abstract class ContentResolver {















    method public static String[] getSyncAdapterPackagesForAuthorityAsUser(String, int);















  }

















































core/java/android/content/ContentInterface.java



+2
−0




























Original line number
Diff line number
Diff line








@@ -36,6 +36,8 @@ import java.util.ArrayList;













 * These methods have been extracted into a general interface so that APIs can















 * be flexible in accepting either a {@link ContentProvider}, a















 * {@link ContentResolver}, or a {@link ContentProviderClient}.













 *













 * @hide















 */















public interface ContentInterface {















    public @Nullable Cursor query(@NonNull Uri uri, @Nullable String[] projection,

































core/java/android/content/ContentResolver.java



+156
−1




























Original line number
Diff line number
Diff line








@@ -609,10 +609,60 @@ public abstract class ContentResolver implements ContentInterface {













    private static final int SLOW_THRESHOLD_MILLIS = 500;















    private final Random mRandom = new Random();  // guarded by itself





























    public ContentResolver(Context context) {













    public ContentResolver(@Nullable Context context) {













        this(context, null);













    }



























    /** {@hide} */













    public ContentResolver(@Nullable Context context, @Nullable ContentInterface wrapped) {















        mContext = context != null ? context : ActivityThread.currentApplication();















        mPackageName = mContext.getOpPackageName();















        mTargetSdkVersion = mContext.getApplicationInfo().targetSdkVersion;













        mWrapped = wrapped;













    }



























    /** {@hide} */













    public static ContentResolver wrap(@NonNull ContentInterface wrapped) {













        Preconditions.checkNotNull(wrapped);



























        return new ContentResolver(null, wrapped) {













            @Override













            public void unstableProviderDied(IContentProvider icp) {













                throw new UnsupportedOperationException();













            }













            @Override













            public boolean releaseUnstableProvider(IContentProvider icp) {













                throw new UnsupportedOperationException();













            }













            @Override













            public boolean releaseProvider(IContentProvider icp) {













                throw new UnsupportedOperationException();













            }













            @Override













            protected IContentProvider acquireUnstableProvider(Context c, String name) {













                throw new UnsupportedOperationException();













            }













            @Override













            protected IContentProvider acquireProvider(Context c, String name) {













                throw new UnsupportedOperationException();













            }













        };













    }



























    /**













     * Create a {@link ContentResolver} instance that redirects all its methods













     * to the given {@link ContentProvider}.













     */













    public static ContentResolver wrap(@NonNull ContentProvider wrapped) {













        return wrap((ContentInterface) wrapped);













    }



























    /**













     * Create a {@link ContentResolver} instance that redirects all its methods













     * to the given {@link ContentProviderClient}.













     */













    public static ContentResolver wrap(@NonNull ContentProviderClient wrapped) {













        return wrap((ContentInterface) wrapped);















    }































    /** @hide */










@@ -660,6 +710,12 @@ public abstract class ContentResolver implements ContentInterface {













    public final @Nullable String getType(@NonNull Uri url) {















        Preconditions.checkNotNull(url, "url");





























        try {













            if (mWrapped != null) return mWrapped.getType(url);













        } catch (RemoteException e) {













            return null;













        }





























        // XXX would like to have an acquireExistingUnstableProvider for this.















        IContentProvider provider = acquireExistingProvider(url);















        if (provider != null) {










@@ -715,6 +771,12 @@ public abstract class ContentResolver implements ContentInterface {













        Preconditions.checkNotNull(url, "url");















        Preconditions.checkNotNull(mimeTypeFilter, "mimeTypeFilter");





























        try {













            if (mWrapped != null) return mWrapped.getStreamTypes(url, mimeTypeFilter);













        } catch (RemoteException e) {













            return null;













        }





























        IContentProvider provider = acquireProvider(url);















        if (provider == null) {















            return null;










@@ -843,6 +905,15 @@ public abstract class ContentResolver implements ContentInterface {













            @Nullable String[] projection, @Nullable Bundle queryArgs,















            @Nullable CancellationSignal cancellationSignal) {















        Preconditions.checkNotNull(uri, "uri");



























        try {













            if (mWrapped != null) {













                return mWrapped.query(uri, projection, queryArgs, cancellationSignal);













            }













        } catch (RemoteException e) {













            return null;













        }





























        IContentProvider unstableProvider = acquireUnstableProvider(uri);















        if (unstableProvider == null) {















            return null;










@@ -942,6 +1013,13 @@ public abstract class ContentResolver implements ContentInterface {













    @Override















    public final @Nullable Uri canonicalize(@NonNull Uri url) {















        Preconditions.checkNotNull(url, "url");



























        try {













            if (mWrapped != null) return mWrapped.canonicalize(url);













        } catch (RemoteException e) {













            return null;













        }





























        IContentProvider provider = acquireProvider(url);















        if (provider == null) {















            return null;










@@ -979,6 +1057,13 @@ public abstract class ContentResolver implements ContentInterface {













    @Override















    public final @Nullable Uri uncanonicalize(@NonNull Uri url) {















        Preconditions.checkNotNull(url, "url");



























        try {













            if (mWrapped != null) return mWrapped.uncanonicalize(url);













        } catch (RemoteException e) {













            return null;













        }





























        IContentProvider provider = acquireProvider(url);















        if (provider == null) {















            return null;










@@ -1015,6 +1100,13 @@ public abstract class ContentResolver implements ContentInterface {













    public final boolean refresh(@NonNull Uri url, @Nullable Bundle args,















            @Nullable CancellationSignal cancellationSignal) {















        Preconditions.checkNotNull(url, "url");



























        try {













            if (mWrapped != null) return mWrapped.refresh(url, args, cancellationSignal);













        } catch (RemoteException e) {













            return false;













        }





























        IContentProvider provider = acquireProvider(url);















        if (provider == null) {















            return false;










@@ -1126,6 +1218,12 @@ public abstract class ContentResolver implements ContentInterface {













    @Override















    public final @Nullable ParcelFileDescriptor openFile(@NonNull Uri uri, @NonNull String mode,















            @Nullable CancellationSignal signal) throws FileNotFoundException {













        try {













            if (mWrapped != null) return mWrapped.openFile(uri, mode, signal);













        } catch (RemoteException e) {













            return null;













        }





























        return openFileDescriptor(uri, mode, signal);















    }


























@@ -1237,6 +1335,12 @@ public abstract class ContentResolver implements ContentInterface {













    @Override















    public final @Nullable AssetFileDescriptor openAssetFile(@NonNull Uri uri, @NonNull String mode,















            @Nullable CancellationSignal signal) throws FileNotFoundException {













        try {













            if (mWrapped != null) return mWrapped.openAssetFile(uri, mode, signal);













        } catch (RemoteException e) {













            return null;













        }





























        return openAssetFileDescriptor(uri, mode, signal);















    }


























@@ -1448,6 +1552,14 @@ public abstract class ContentResolver implements ContentInterface {













    public final @Nullable AssetFileDescriptor openTypedAssetFile(@NonNull Uri uri,















            @NonNull String mimeTypeFilter, @Nullable Bundle opts,















            @Nullable CancellationSignal signal) throws FileNotFoundException {













        try {













            if (mWrapped != null) {













                return mWrapped.openTypedAssetFile(uri, mimeTypeFilter, opts, signal);













            }













        } catch (RemoteException e) {













            return null;













        }





























        return openTypedAssetFileDescriptor(uri, mimeTypeFilter, opts, signal);















    }


























@@ -1664,6 +1776,13 @@ public abstract class ContentResolver implements ContentInterface {













    public final @Nullable Uri insert(@RequiresPermission.Write @NonNull Uri url,















                @Nullable ContentValues values) {















        Preconditions.checkNotNull(url, "url");



























        try {













            if (mWrapped != null) return mWrapped.insert(url, values);













        } catch (RemoteException e) {













            return null;













        }





























        IContentProvider provider = acquireProvider(url);















        if (provider == null) {















            throw new IllegalArgumentException("Unknown URL " + url);










@@ -1705,6 +1824,13 @@ public abstract class ContentResolver implements ContentInterface {













                    throws RemoteException, OperationApplicationException {















        Preconditions.checkNotNull(authority, "authority");















        Preconditions.checkNotNull(operations, "operations");



























        try {













            if (mWrapped != null) return mWrapped.applyBatch(authority, operations);













        } catch (RemoteException e) {













            return null;













        }





























        ContentProviderClient provider = acquireContentProviderClient(authority);















        if (provider == null) {















            throw new IllegalArgumentException("Unknown authority " + authority);









@@ -1731,6 +1857,13 @@ public abstract class ContentResolver implements ContentInterface {













                @NonNull ContentValues[] values) {















        Preconditions.checkNotNull(url, "url");















        Preconditions.checkNotNull(values, "values");



























        try {













            if (mWrapped != null) return mWrapped.bulkInsert(url, values);













        } catch (RemoteException e) {













            return 0;













        }





























        IContentProvider provider = acquireProvider(url);















        if (provider == null) {















            throw new IllegalArgumentException("Unknown URL " + url);










@@ -1764,6 +1897,13 @@ public abstract class ContentResolver implements ContentInterface {













    public final int delete(@RequiresPermission.Write @NonNull Uri url, @Nullable String where,















            @Nullable String[] selectionArgs) {















        Preconditions.checkNotNull(url, "url");



























        try {













            if (mWrapped != null) return mWrapped.delete(url, where, selectionArgs);













        } catch (RemoteException e) {













            return 0;













        }





























        IContentProvider provider = acquireProvider(url);















        if (provider == null) {















            throw new IllegalArgumentException("Unknown URL " + url);










@@ -1801,6 +1941,13 @@ public abstract class ContentResolver implements ContentInterface {













            @Nullable ContentValues values, @Nullable String where,















            @Nullable String[] selectionArgs) {















        Preconditions.checkNotNull(uri, "uri");



























        try {













            if (mWrapped != null) return mWrapped.update(uri, values, where, selectionArgs);













        } catch (RemoteException e) {













            return 0;













        }





























        IContentProvider provider = acquireProvider(uri);















        if (provider == null) {















            throw new IllegalArgumentException("Unknown URI " + uri);










@@ -1844,6 +1991,13 @@ public abstract class ContentResolver implements ContentInterface {













            @Nullable String arg, @Nullable Bundle extras) {















        Preconditions.checkNotNull(authority, "authority");















        Preconditions.checkNotNull(method, "method");



























        try {













            if (mWrapped != null) return mWrapped.call(authority, method, arg, extras);













        } catch (RemoteException e) {













            return null;













        }





























        IContentProvider provider = acquireProvider(authority);















        if (provider == null) {















            throw new IllegalArgumentException("Unknown authority " + authority);










@@ -3193,6 +3347,7 @@ public abstract class ContentResolver implements ContentInterface {













    @UnsupportedAppUsage















    final String mPackageName;















    final int mTargetSdkVersion;













    final ContentInterface mWrapped;































    private static final String TAG = "ContentResolver";