Package org.h2.store.fs.encrypt

Class FilePathEncrypt

java.lang.Object

org.h2.store.fs.FilePath

org.h2.store.fs.FilePathWrapper

org.h2.store.fs.encrypt.FilePathEncrypt

public class FilePathEncrypt
extends FilePathWrapper

An encrypted file.

Field Summary

Fields

Modifier and Type	Field	Description
private static java.lang.String	SCHEME

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

name

Constructor Summary

Constructors

Constructor	Description
FilePathEncrypt()

Method Summary

Modifier and Type	Method	Description
static byte[]	getPasswordBytes(char[] passwordChars)	Convert a char array to a byte array, in UTF-16 format.
protected java.lang.String	getPrefix()
java.lang.String	getScheme()	Get the scheme (prefix) for this file provider.
java.io.InputStream	newInputStream()	Create an input stream to read from the file.
java.io.OutputStream	newOutputStream(boolean append)	Create an output stream to write into the file.
java.nio.channels.FileChannel	open(java.lang.String mode)	Open a random access file object.
private java.lang.String[]	parse(java.lang.String fileName)	Split the file name into algorithm, password, and base file name.
static void	register()	Register this file system.
long	size()	Get the size of a file in bytes
FilePath	unwrap(java.lang.String fileName)	Get the base path for the given wrapped path.

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

canWrite, createDirectory, createFile, createTempFile, delete, exists, getBase, getParent, getPath, isAbsolute, isDirectory, lastModified, moveTo, newDirectoryStream, setReadOnly, toRealPath, 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

Field Detail

SCHEME

private static final java.lang.String SCHEME

See Also:

Constant Field Values

Constructor Detail

FilePathEncrypt

public FilePathEncrypt()

Method Detail

register

public static void register()

Register this file system.

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

getPrefix

protected java.lang.String getPrefix()

Overrides:

getPrefix in class FilePathWrapper

unwrap

public FilePath unwrap(java.lang.String fileName)

Description copied from class: FilePathWrapper

Get the base path for the given wrapped path.

Overrides:

unwrap in class FilePathWrapper

Parameters:

fileName - the path including the scheme prefix

Returns:

the base file path

size

public long size()

Description copied from class: FilePath

Get the size of a file in bytes

Overrides:

size in class FilePathWrapper

Returns:

the size in bytes

newOutputStream

public java.io.OutputStream newOutputStream(boolean append)
                                     throws java.io.IOException

Description copied from class: FilePath

Create an output stream to write into the file.

Overrides:

newOutputStream in class FilePathWrapper

Parameters:

append - if true, the file will grow, if false, the file will be truncated first

Returns:

the output stream

Throws:

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

newInputStream

public java.io.InputStream newInputStream()
                                   throws java.io.IOException

Description copied from class: FilePath

Create an input stream to read from the file.

Overrides:

newInputStream in class FilePathWrapper

Returns:

the input stream

Throws:

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

parse

private java.lang.String[] parse(java.lang.String fileName)

Split the file name into algorithm, password, and base file name.

Parameters:

fileName - the file name

Returns:

an array with algorithm, password, and base file name

getPasswordBytes

public static byte[] getPasswordBytes(char[] passwordChars)

Convert a char array to a byte array, in UTF-16 format. The char array is not cleared after use (this must be done by the caller).

Parameters:

passwordChars - the password characters

Returns:

the byte array