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android / platform / external / jimfs / cd18acbf0036a7c6a3443e7e58b5091cacf327cf
commitcd18acbf0036a7c6a3443e7e58b5091cacf327cf[log] [tgz]
authorCole Faust <[email protected]>Fri Sep 06 22:45:06 2024 +0000
committerAutomerger Merge Worker <[email protected]>Fri Sep 06 22:45:06 2024 +0000
tree76f2cf35330deac4f32c9b0b0bfcd8436c0fd310
parent99efea85871d23f5aeccb324ebaf47b86cd15770 [diff]
parent59f588f29f9b76e9f7a87d03cd1bb9d6d46d0132 [diff]
Fix errorprone issues am: cad7ee4004 am: 59f588f29f

Original change: https://android-review.googlesource.com/c/platform/external/jimfs/+/3258054

Change-Id: Ie213d06663436e8f485cc3520b7570d35595f198
Signed-off-by: Automerger Merge Worker <[email protected]>
tree: 76f2cf35330deac4f32c9b0b0bfcd8436c0fd310
  1. .github/
  2. jimfs/
  3. util/
  4. .gitignore
  5. .travis.yml
  6. Android.bp
  7. CONTRIBUTING.md
  8. LICENSE
  9. METADATA
  10. MODULE_LICENSE_APACHE2
  11. pom.xml
  12. README.md
README.md

Jimfs

Jimfs is an in-memory file system for Java 7 and above, implementing the java.nio.file abstract file system APIs.

Build Status Maven Central

Getting started

The latest release is 1.1.

It is available in Maven Central as com.google.jimfs:jimfs:1.1:

<dependency>
  <groupId>com.google.jimfs</groupId>
  <artifactId>jimfs</artifactId>
  <version>1.1</version>
</dependency>

Basic use

The simplest way to use Jimfs is to just get a new FileSystem instance from the Jimfs class and start using it:

import com.google.common.jimfs.Configuration;
import com.google.common.jimfs.Jimfs;
...

// For a simple file system with Unix-style paths and behavior:
FileSystem fs = Jimfs.newFileSystem(Configuration.unix());
Path foo = fs.getPath("/foo");
Files.createDirectory(foo);

Path hello = foo.resolve("hello.txt"); // /foo/hello.txt
Files.write(hello, ImmutableList.of("hello world"), StandardCharsets.UTF_8);

What's supported?

Jimfs supports almost all the APIs under java.nio.file. It supports:

  • Creating, deleting, moving and copying files and directories.
  • Reading and writing files with FileChannel or SeekableByteChannel, InputStream, OutputStream, etc.
  • Symbolic links.
  • Hard links to regular files.
  • SecureDirectoryStream, for operations relative to an open directory.
  • Glob and regex path filtering with PathMatcher.
  • Watching for changes to a directory with a WatchService.
  • File attributes. Built-in attribute views that can be supported include “basic”, “owner”, “posix”, “unix”, “dos”, “acl” and “user”. Do note, however, that not all attribute views provide useful attributes. For example, while setting and reading POSIX file permissions is possible with the “posix” view, those permissions will not actually affect the behavior of the file system.

Jimfs also supports creating file systems that, for example, use Windows-style paths and (to an extent) behavior. In general, however, file system behavior is modeled after UNIX and may not exactly match any particular real file system or platform.

License

Copyright 2013 Google Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.