Merge "Add isRootsUri method to check whether the roots uri is valid" (52ac7e2d) · Commits · e / os / android_frameworks_base

core/java/android/provider/DocumentsContract.java

+27 −6

Original line number	Diff line number	Diff line
		@@ -942,13 +942,26 @@ public final class DocumentsContract {
		return false;
		}

		/** {@hide} */
		public static boolean isRootUri(Context context, @Nullable Uri uri) {
		if (isContentUri(uri) && isDocumentsProvider(context, uri.getAuthority())) {
		final List<String> paths = uri.getPathSegments();
		return (paths.size() == 2 && PATH_ROOT.equals(paths.get(0)));
		/**
		* Test if the given URI represents roots backed by {@link DocumentsProvider}.
		*
		* @see #buildRootsUri(String)
		*
		* {@hide}
		*/
		public static boolean isRootsUri(Context context, @Nullable Uri uri) {
		return isRootUri(context, uri, 1 /* pathSize */);
		}
		return false;

		/**
		* Test if the given URI represents specific root backed by {@link DocumentsProvider}.
		*
		* @see #buildRootUri(String, String)
		*
		* {@hide}
		*/
		public static boolean isRootUri(Context context, @Nullable Uri uri) {
		return isRootUri(context, uri, 2 /* pathSize */);
		}

		/** {@hide} */
		@@ -967,6 +980,14 @@ public final class DocumentsContract {
		return (paths.size() >= 2 && PATH_TREE.equals(paths.get(0)));
		}

		private static boolean isRootUri(Context context, @Nullable Uri uri, int pathSize) {
		if (isContentUri(uri) && isDocumentsProvider(context, uri.getAuthority())) {
		final List<String> paths = uri.getPathSegments();
		return (paths.size() == pathSize && PATH_ROOT.equals(paths.get(0)));
		}
		return false;
		}

		private static boolean isDocumentsProvider(Context context, String authority) {
		final Intent intent = new Intent(PROVIDER_INTERFACE);
		final List<ResolveInfo> infos = context.getPackageManager()