org.neo4j.io.fs

Class DelegateFileSystemAbstraction

java.lang.Object

org.neo4j.io.fs.DelegateFileSystemAbstraction

All Implemented Interfaces:

Closeable, AutoCloseable, FileSystemAbstraction

public class DelegateFileSystemAbstraction
extends Object
implements FileSystemAbstraction

This FileSystemAbstract implementation delegates all calls to a given FileSystem implementation. This is useful for testing with arbitrary 3rd party file systems, such as Jimfs.

Nested Class Summary

Nested classes/interfaces inherited from interface org.neo4j.io.fs.FileSystemAbstraction

FileSystemAbstraction.ThirdPartyFileSystem

Constructor Summary

Constructors

Constructor and Description
DelegateFileSystemAbstraction(FileSystem fs)

Method Summary

Modifier and Type	Method and Description
void	close()
void	copyFile(File from, File to)
void	copyRecursively(File fromDirectory, File toDirectory)
StoreChannel	create(File fileName)
boolean	deleteFile(File fileName)
void	deleteFileOrThrow(File file)
void	deleteRecursively(File directory)
boolean	fileExists(File fileName)
FileWatcher	fileWatcher() Create file watcher that provides possibilities to monitor directories on underlying file system abstraction
long	getFileSize(File fileName)
<K extends FileSystemAbstraction.ThirdPartyFileSystem> K	getOrCreateThirdPartyFileSystem(Class<K> clazz, Function<Class<K>,K> creator)
boolean	isDirectory(File file)
long	lastModifiedTime(File file)
File[]	listFiles(File directory)
File[]	listFiles(File directory, FilenameFilter filter)
boolean	mkdir(File fileName)
void	mkdirs(File fileName)
void	moveToDirectory(File file, File toDirectory)
StoreChannel	open(File fileName, String mode)
InputStream	openAsInputStream(File fileName)
OutputStream	openAsOutputStream(File fileName, boolean append)
Reader	openAsReader(File fileName, Charset charset)
Writer	openAsWriter(File fileName, Charset charset, boolean append)
void	renameFile(File from, File to, CopyOption... copyOptions)
void	truncate(File path, long size)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DelegateFileSystemAbstraction

public DelegateFileSystemAbstraction(FileSystem fs)

Method Detail

fileWatcher

public FileWatcher fileWatcher()
                        throws IOException

Description copied from interface: FileSystemAbstraction

Create file watcher that provides possibilities to monitor directories on underlying file system abstraction

Specified by:

fileWatcher in interface FileSystemAbstraction

Returns:

specific file system abstract watcher

Throws:

IOException - in case exception occur during file watcher creation

open

public StoreChannel open(File fileName,
                         String mode)
                  throws IOException

Specified by:

open in interface FileSystemAbstraction

Throws:

IOException

openAsOutputStream

public OutputStream openAsOutputStream(File fileName,
                                       boolean append)
                                throws IOException

Specified by:

openAsOutputStream in interface FileSystemAbstraction

Throws:

IOException

openAsInputStream

public InputStream openAsInputStream(File fileName)
                              throws IOException

Specified by:

openAsInputStream in interface FileSystemAbstraction

Throws:

IOException

openAsReader

public Reader openAsReader(File fileName,
                           Charset charset)
                    throws IOException

Specified by:

openAsReader in interface FileSystemAbstraction

Throws:

IOException

openAsWriter

public Writer openAsWriter(File fileName,
                           Charset charset,
                           boolean append)
                    throws IOException

Specified by:

openAsWriter in interface FileSystemAbstraction

Throws:

IOException

create

public StoreChannel create(File fileName)
                    throws IOException

Specified by:

create in interface FileSystemAbstraction

Throws:

IOException

fileExists

public boolean fileExists(File fileName)

Specified by:

fileExists in interface FileSystemAbstraction

mkdir

public boolean mkdir(File fileName)

Specified by:

mkdir in interface FileSystemAbstraction

mkdirs

public void mkdirs(File fileName)
            throws IOException

Specified by:

mkdirs in interface FileSystemAbstraction

Throws:

IOException

getFileSize

public long getFileSize(File fileName)

Specified by:

getFileSize in interface FileSystemAbstraction

deleteFile

public boolean deleteFile(File fileName)

Specified by:

deleteFile in interface FileSystemAbstraction

deleteRecursively

public void deleteRecursively(File directory)
                       throws IOException

Specified by:

deleteRecursively in interface FileSystemAbstraction

Throws:

IOException

renameFile

public void renameFile(File from,
                       File to,
                       CopyOption... copyOptions)
                throws IOException

Specified by:

renameFile in interface FileSystemAbstraction

Throws:

IOException

listFiles

public File[] listFiles(File directory)

Specified by:

listFiles in interface FileSystemAbstraction

listFiles

public File[] listFiles(File directory,
                        FilenameFilter filter)

Specified by:

listFiles in interface FileSystemAbstraction

isDirectory

public boolean isDirectory(File file)

Specified by:

isDirectory in interface FileSystemAbstraction

moveToDirectory

public void moveToDirectory(File file,
                            File toDirectory)
                     throws IOException

Specified by:

moveToDirectory in interface FileSystemAbstraction

Throws:

IOException

copyFile

public void copyFile(File from,
                     File to)
              throws IOException

Specified by:

copyFile in interface FileSystemAbstraction

Throws:

IOException

copyRecursively

public void copyRecursively(File fromDirectory,
                            File toDirectory)
                     throws IOException

Specified by:

copyRecursively in interface FileSystemAbstraction

Throws:

IOException

getOrCreateThirdPartyFileSystem

public <K extends FileSystemAbstraction.ThirdPartyFileSystem> K getOrCreateThirdPartyFileSystem(Class<K> clazz,
                                                                                                Function<Class<K>,K> creator)

Specified by:

getOrCreateThirdPartyFileSystem in interface FileSystemAbstraction

truncate

public void truncate(File path,
                     long size)
              throws IOException

Specified by:

truncate in interface FileSystemAbstraction

Throws:

IOException

lastModifiedTime

public long lastModifiedTime(File file)
                      throws IOException

Specified by:

lastModifiedTime in interface FileSystemAbstraction

Throws:

IOException

deleteFileOrThrow

public void deleteFileOrThrow(File file)
                       throws IOException

Specified by:

deleteFileOrThrow in interface FileSystemAbstraction

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException