Package org.h2.test.utils

Class FilePathUnstable

java.lang.Object

org.h2.store.fs.FilePath

org.h2.store.fs.FilePathWrapper

org.h2.test.utils.FilePathUnstable

public class FilePathUnstable
extends FilePathWrapper

An unstable file system. It is used to simulate file system problems (for example out of disk space).

Field Summary

Fields inherited from class org.h2.store.fs.FilePath

name

Constructor Summary

Constructors

Constructor	Description
FilePathUnstable()

Method Summary

Modifier and Type	Method	Description
int	getDiskFullCount()
java.lang.String	getScheme()	Get the scheme (prefix) for this file provider.
java.nio.channels.FileChannel	open(java.lang.String mode)	Open a random access file object.
static FilePathUnstable	register()	Register the file system.
void	setDiskFullCount(int count, int seed)	Set the number of write operations before the disk is full, and the random seed (for partial writes).
void	setPartialWrites(boolean partialWrites)	Whether partial writes are possible (writing only part of the data).

Methods inherited from class org.h2.store.fs.FilePathWrapper

canWrite, createDirectory, createFile, createTempFile, delete, exists, getBase, getParent, getPath, getPrefix, isAbsolute, isDirectory, isRegularFile, lastModified, moveTo, newDirectoryStream, newInputStream, newOutputStream, setReadOnly, size, toRealPath, unwrap, unwrap, wrap

Methods inherited from class org.h2.store.fs.FilePath

get, getName, newFileChannelOutputStream, register, toString, unregister

Methods inherited from class java.lang.Object

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

Constructor Detail

FilePathUnstable

public FilePathUnstable()

Method Detail

register

public static FilePathUnstable register()

Register the file system.

Returns:

the instance

setDiskFullCount

public void setDiskFullCount(int count,
                             int seed)

Set the number of write operations before the disk is full, and the random seed (for partial writes).

Parameters:

count - the number of write operations (0 to never fail, Integer.MAX_VALUE to count the operations)

seed - the new seed

getDiskFullCount

public int getDiskFullCount()

setPartialWrites

public void setPartialWrites(boolean partialWrites)

Whether partial writes are possible (writing only part of the data).

Parameters:

partialWrites - true to enable

open

public java.nio.channels.FileChannel open(java.lang.String mode)
                                   throws java.io.IOException

Description copied from class: FilePath

Open a random access file object.

Overrides:

open in class FilePathWrapper

Parameters:

mode - the access mode. Supported are r, rw, rws, rwd

Returns:

the file object

Throws:

java.io.IOException - If an I/O error occurs

getScheme

public java.lang.String getScheme()

Description copied from class: FilePath

Get the scheme (prefix) for this file provider. This is similar to java.nio.file.spi.FileSystemProvider.getScheme.

Specified by:

getScheme in class FilePath

Returns:

the scheme