org.apache.lucene.mockfile

Class ShuffleFS

java.lang.Object

java.nio.file.spi.FileSystemProvider

org.apache.lucene.mockfile.FilterFileSystemProvider

org.apache.lucene.mockfile.ShuffleFS

public class ShuffleFS
extends FilterFileSystemProvider

Gives an unpredictable, but deterministic order to directory listings.

This can be useful if for instance, you have build servers on linux but developers are using macs.

Field Summary

Fields inherited from class org.apache.lucene.mockfile.FilterFileSystemProvider

delegate, fileSystem, scheme

Constructor Summary

Constructors

Constructor and Description
ShuffleFS(FileSystem delegate, long seed) Create a new instance, wrapping delegate.

Method Summary

Modifier and Type	Method and Description
DirectoryStream<Path>	newDirectoryStream(Path dir, DirectoryStream.Filter<? super Path> filter)

Methods inherited from class org.apache.lucene.mockfile.FilterFileSystemProvider

checkAccess, copy, createDirectory, createLink, createSymbolicLink, delete, deleteIfExists, getFileAttributeView, getFileStore, getFileSystem, getPath, getScheme, isHidden, isSameFile, move, newAsynchronousFileChannel, newByteChannel, newFileChannel, newFileSystem, newFileSystem, newInputStream, newOutputStream, onClose, readAttributes, readAttributes, readSymbolicLink, setAttribute, toDelegate, toString

Methods inherited from class java.nio.file.spi.FileSystemProvider

installedProviders

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ShuffleFS

public ShuffleFS(FileSystem delegate,
                 long seed)

Create a new instance, wrapping delegate.

Method Detail

newDirectoryStream

public DirectoryStream<Path> newDirectoryStream(Path dir,
                                                DirectoryStream.Filter<? super Path> filter)
                                         throws IOException

Overrides:

newDirectoryStream in class FilterFileSystemProvider

Throws:

IOException