| // Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package java.adapter; |
| |
| import desugar.sun.nio.fs.DesugarDefaultFileTypeDetector; |
| import java.io.IOException; |
| import java.nio.file.Path; |
| import java.nio.file.spi.FileTypeDetector; |
| |
| /** |
| * A hybrid file type detector adapter that delegates different implementations based on the runtime |
| * environment. |
| */ |
| public final class HybridFileTypeDetector { |
| private HybridFileTypeDetector() {} |
| |
| public static FileTypeDetector create() { |
| try { |
| // On API 26 and above, java.nio.file.Files is present. |
| Class.forName("java.nio.file.Files"); |
| return new PlatformFileTypeDetector(); |
| } catch (ClassNotFoundException ignored) { |
| return DesugarDefaultFileTypeDetector.create(); |
| } |
| } |
| |
| static class PlatformFileTypeDetector extends FileTypeDetector { |
| @Override |
| public String probeContentType(Path path) throws IOException { |
| return j$.nio.file.Files.probeContentType(j$.nio.file.Path.inverted_wrap_convert(path)); |
| } |
| } |
| } |