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java.io
Class WinNTFileSystem

java.lang.Object
 |
 +--java.io.FileSystem
 |
 +--java.io.Win32FileSystem
 |
 +--java.io.WinNTFileSystem
class WinNTFileSystem
extends Win32FileSystem

Unicode-aware FileSystem for Windows NT/2000.

Since:
1.4
Version:
1.3, 02/06/11
Author:
Konstantin Kladko

Field Summary
static int BA_DIRECTORY
static int BA_EXISTS
static int BA_HIDDEN
static int BA_REGULAR
Constructor Summary
(package private) WinNTFileSystem()
Method Summary
String canonicalize(String path)
boolean checkAccess(File f, boolean write)
Check whether the file or directory denoted by the given abstract pathname may be accessed by this process.
int compare(File f1, File f2)
Compare two abstract pathnames lexicographically.
boolean createDirectory(File f)
Create a new directory denoted by the given abstract pathname, returning true if and only if the operation succeeds.
boolean createFileExclusively(String path)
Create a new empty file with the given pathname.
boolean delete(File f)
Delete the file or directory denoted by the given abstract pathname, returning true if and only if the operation succeeds.
boolean deleteOnExit(File f)
Arrange for the file or directory denoted by the given abstract pathname to be deleted when the VM exits, returning true if and only if the operation succeeds.
String fromURIPath(String path)
Post-process the given URI path string if necessary.
int getBooleanAttributes(File f)
Return the simple boolean attributes for the file or directory denoted by the given abstract pathname, or zero if it does not exist or some other I/O error occurs.
String getDefaultParent()
Return the parent pathname string to be used when the parent-directory argument in one of the two-argument File constructors is the empty pathname.
(package private) String getDriveDirectory(int drive)
static FileSystem getFileSystem()
Return the FileSystem object representing this platform's local filesystem.
long getLastModifiedTime(File f)
Return the time at which the file or directory denoted by the given abstract pathname was last modified, or zero if it does not exist or some other I/O error occurs.
long getLength(File f)
Return the length in bytes of the file denoted by the given abstract pathname, or zero if it does not exist, is a directory, or some other I/O error occurs.
char getPathSeparator()
Return the local filesystem's path-separator character.
char getSeparator()
Return the local filesystem's name-separator character.
int hashCode(File f)
Compute the hash code of an abstract pathname.
private static void initIDs()
boolean isAbsolute(File f)
Tell whether or not the given abstract pathname is absolute.
String[] list(File f)
List the elements of the directory denoted by the given abstract pathname.
File[] listRoots()
List the available filesystem roots.
String normalize(String path)
Convert the given pathname string to normal form.
int prefixLength(String path)
Compute the length of this pathname string's prefix.
boolean rename(File f1, File f2)
Rename the file or directory denoted by the first abstract pathname to the second abstract pathname, returning true if and only if the operation succeeds.
String resolve(File f)
Resolve the given abstract pathname into absolute form.
String resolve(String parent, String child)
Resolve the child pathname string against the parent.
boolean setLastModifiedTime(File f, long time)
Set the last-modified time of the file or directory denoted by the given abstract pathname, returning true if and only if the operation succeeds.
boolean setReadOnly(File f)
Mark the file or directory denoted by the given abstract pathname as read-only, returning true if and only if the operation succeeds.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BA_EXISTS

public static final int BA_EXISTS

BA_REGULAR

public static final int BA_REGULAR

BA_DIRECTORY

public static final int BA_DIRECTORY

BA_HIDDEN

public static final int BA_HIDDEN
Constructor Detail

WinNTFileSystem

WinNTFileSystem()
Method Detail

canonicalize

public String canonicalize(String path)
 throws IOException
Overrides:
canonicalize in class Win32FileSystem
IOException

getBooleanAttributes

public int getBooleanAttributes(File f)
Description copied from class: FileSystem
Return the simple boolean attributes for the file or directory denoted by the given abstract pathname, or zero if it does not exist or some other I/O error occurs.

Overrides:
getBooleanAttributes in class Win32FileSystem

checkAccess

public boolean checkAccess(File f,
 boolean write)
Description copied from class: FileSystem
Check whether the file or directory denoted by the given abstract pathname may be accessed by this process. If the second argument is false, then a check for read access is made; if the second argument is true, then a check for write (not read-write) access is made. Return false if access is denied or an I/O error occurs.

Overrides:
checkAccess in class Win32FileSystem

getLastModifiedTime

public long getLastModifiedTime(File f)
Description copied from class: FileSystem
Return the time at which the file or directory denoted by the given abstract pathname was last modified, or zero if it does not exist or some other I/O error occurs.

Overrides:
getLastModifiedTime in class Win32FileSystem

getLength

public long getLength(File f)
Description copied from class: FileSystem
Return the length in bytes of the file denoted by the given abstract pathname, or zero if it does not exist, is a directory, or some other I/O error occurs.

Overrides:
getLength in class Win32FileSystem

createFileExclusively

public boolean createFileExclusively(String path)
 throws IOException
Description copied from class: FileSystem
Create a new empty file with the given pathname. Return true if the file was created and false if a file or directory with the given pathname already exists. Throw an IOException if an I/O error occurs.

Overrides:
createFileExclusively in class Win32FileSystem
IOException

delete

public boolean delete(File f)
Description copied from class: FileSystem
Delete the file or directory denoted by the given abstract pathname, returning true if and only if the operation succeeds.

Overrides:
delete in class Win32FileSystem

deleteOnExit

public boolean deleteOnExit(File f)
Description copied from class: FileSystem
Arrange for the file or directory denoted by the given abstract pathname to be deleted when the VM exits, returning true if and only if the operation succeeds.

Overrides:
deleteOnExit in class Win32FileSystem

list

public String[] list(File f)
Description copied from class: FileSystem
List the elements of the directory denoted by the given abstract pathname. Return an array of strings naming the elements of the directory if successful; otherwise, return null.

Overrides:
list in class Win32FileSystem

createDirectory

public boolean createDirectory(File f)
Description copied from class: FileSystem
Create a new directory denoted by the given abstract pathname, returning true if and only if the operation succeeds.

Overrides:
createDirectory in class Win32FileSystem

rename

public boolean rename(File f1,
 File f2)
Description copied from class: FileSystem
Rename the file or directory denoted by the first abstract pathname to the second abstract pathname, returning true if and only if the operation succeeds.

Overrides:
rename in class Win32FileSystem

setLastModifiedTime

public boolean setLastModifiedTime(File f,
 long time)
Description copied from class: FileSystem
Set the last-modified time of the file or directory denoted by the given abstract pathname, returning true if and only if the operation succeeds.

Overrides:
setLastModifiedTime in class Win32FileSystem

setReadOnly

public boolean setReadOnly(File f)
Description copied from class: FileSystem
Mark the file or directory denoted by the given abstract pathname as read-only, returning true if and only if the operation succeeds.

Overrides:
setReadOnly in class Win32FileSystem

getDriveDirectory

String getDriveDirectory(int drive)
Overrides:
getDriveDirectory in class Win32FileSystem

initIDs

private static void initIDs()

getSeparator

public char getSeparator()
Description copied from class: FileSystem
Return the local filesystem's name-separator character.

Specified by:
getSeparator in class FileSystem

getPathSeparator

public char getPathSeparator()
Description copied from class: FileSystem
Return the local filesystem's path-separator character.

Specified by:
getPathSeparator in class FileSystem

normalize

public String normalize(String path)
Description copied from class: FileSystem
Convert the given pathname string to normal form. If the string is already in normal form then it is simply returned.

Specified by:
normalize in class FileSystem

prefixLength

public int prefixLength(String path)
Description copied from class: FileSystem
Compute the length of this pathname string's prefix. The pathname string must be in normal form.

Specified by:
prefixLength in class FileSystem

resolve

public String resolve(String parent,
 String child)
Description copied from class: FileSystem
Resolve the child pathname string against the parent. Both strings must be in normal form, and the result will be in normal form.

Specified by:
resolve in class FileSystem

getDefaultParent

public String getDefaultParent()
Description copied from class: FileSystem
Return the parent pathname string to be used when the parent-directory argument in one of the two-argument File constructors is the empty pathname.

Specified by:
getDefaultParent in class FileSystem

fromURIPath

public String fromURIPath(String path)
Description copied from class: FileSystem
Post-process the given URI path string if necessary. This is used on win32, e.g., to transform "/c:/foo" into "c:/foo". The path string still has slash separators; code in the File class will translate them after this method returns.

Specified by:
fromURIPath in class FileSystem

isAbsolute

public boolean isAbsolute(File f)
Description copied from class: FileSystem
Tell whether or not the given abstract pathname is absolute.

Specified by:
isAbsolute in class FileSystem

resolve

public String resolve(File f)
Description copied from class: FileSystem
Resolve the given abstract pathname into absolute form. Invoked by the getAbsolutePath and getCanonicalPath methods in the File class.

Specified by:
resolve in class FileSystem

listRoots

public File[] listRoots()
Description copied from class: FileSystem
List the available filesystem roots.

Specified by:
listRoots in class FileSystem

compare

public int compare(File f1,
 File f2)
Description copied from class: FileSystem
Compare two abstract pathnames lexicographically.

Specified by:
compare in class FileSystem

hashCode

public int hashCode(File f)
Description copied from class: FileSystem
Compute the hash code of an abstract pathname.

Specified by:
hashCode in class FileSystem

getFileSystem

public static FileSystem getFileSystem()
Return the FileSystem object representing this platform's local filesystem.

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