commit	6f35239027aa2efad5fbbfe41ecad0923003112b	[log] [tgz]
author	Automerger Merge Worker <[email protected]>	Thu Mar 05 05:12:32 2020 +0000
committer	Automerger Merge Worker <[email protected]>	Thu Mar 05 05:12:32 2020 +0000
tree	f8cbc802a806455c5fdfeab7f696c63641b9f9f5
parent	68591711a9034281d5fe11fc7a30e535bbce125c [diff]
parent	089373269bfaa2212f2008ac7bda148cdd6945c9 [diff]

tree: f8cbc802a806455c5fdfeab7f696c63641b9f9f5

README.md

Jimfs

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

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.