org.jboss.vfs.util.automount

Class Automounter

java.lang.Object

org.jboss.vfs.util.automount.Automounter

public class Automounter
extends java.lang.Object

Utility used to manage mounting Virtual FileSystems.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
(package private) static class	Automounter.RegistryEntry

Field Summary

Fields

Modifier and Type	Field and Description
private static java.util.concurrent.ConcurrentMap<MountOwner,java.util.Set<Automounter.RegistryEntry>>	ownerReferences
private static Automounter.RegistryEntry	rootEntry
private static TempFileProvider	tempFileProvider

Constructor Summary

Constructors

Modifier	Constructor and Description
private	Automounter() Private constructor

Method Summary

Modifier and Type	Method and Description
static boolean	addHandle(VirtualFile owner, java.io.Closeable handle) Add handle to owner, to be auto closed.
static void	cleanup(MountOwner owner) Cleanup all references from the MountOwner.
static void	cleanup(java.lang.Object owner) Cleanup all references from the owner.
static void	cleanup(VirtualFile owner) Cleanup all references from the owner.
(package private) static Automounter.RegistryEntry	getEntry(VirtualFile virtualFile) Get the entry from the tree creating the entry if not present.
private static MountConfig	getMountConfig(MountOption[] mountOptions) Creates a MountConfig and applies the provided mount options
private static TempFileProvider	getTempFileProvider()
static boolean	isMounted(VirtualFile target) Determines whether a target VirtualFile is mounted.
static void	mount(MountOwner owner, VirtualFile target, MountOption... mountOptions) Mount provided VirtualFile (if not mounted) and add an owner entry.
static void	mount(java.lang.Object owner, VirtualFile target, MountOption... mountOptions) Mount provided VirtualFile (if not mounted) and add an owner entry.
static void	mount(VirtualFile target, MountOption... mountOptions) Mount provided VirtualFile (if not mounted) and set the owner to be the provided target.
static void	mount(VirtualFile owner, VirtualFile target, MountOption... mountOptions) Mount provided VirtualFile (if not mounted) and add an owner entry.
static boolean	removeHandle(VirtualFile owner, java.io.Closeable handle) Remove handle from owner.

Methods inherited from class java.lang.Object

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

Field Detail

rootEntry

private static final Automounter.RegistryEntry rootEntry

ownerReferences

private static final java.util.concurrent.ConcurrentMap<MountOwner,java.util.Set<Automounter.RegistryEntry>> ownerReferences

tempFileProvider

private static TempFileProvider tempFileProvider

Constructor Detail

Automounter

private Automounter()

Private constructor

Method Detail

mount

public static void mount(VirtualFile target,
                         MountOption... mountOptions)
                  throws java.io.IOException

Mount provided VirtualFile (if not mounted) and set the owner to be the provided target. (Self owned mount)

Parameters:

target - VirtualFile to mount

mountOptions - optional configuration to use for mounting

Throws:

java.io.IOException - when the target can not be mounted.

mount

public static void mount(java.lang.Object owner,
                         VirtualFile target,
                         MountOption... mountOptions)
                  throws java.io.IOException

Mount provided VirtualFile (if not mounted) and add an owner entry. Also creates a back-reference to from the owner to the target.

Parameters:

owner - Object that owns the reference to the mount

target - VirtualFile to mount

mountOptions - optional configuration to use for mounting

Throws:

java.io.IOException - when the target can not be mounted.

mount

public static void mount(VirtualFile owner,
                         VirtualFile target,
                         MountOption... mountOptions)
                  throws java.io.IOException

Mount provided VirtualFile (if not mounted) and add an owner entry. Also creates a back-reference to from the owner to the target.

Parameters:

owner - VirtualFile that owns the reference to the mount

target - VirtualFile to mount

mountOptions - optional configuration to use for mounting

Throws:

java.io.IOException - when the target can not be mounted.

mount

public static void mount(MountOwner owner,
                         VirtualFile target,
                         MountOption... mountOptions)
                  throws java.io.IOException

Mount provided VirtualFile (if not mounted) and add an owner entry. Also creates a back-reference to from the owner to the target.

Parameters:

owner - MountOwner that owns the reference to the mount

target - VirtualFile to mount

mountOptions - optional configuration to use for mounting

Throws:

java.io.IOException - when the target can not be mounted

getMountConfig

private static MountConfig getMountConfig(MountOption[] mountOptions)

Creates a MountConfig and applies the provided mount options

Parameters:

mountOptions - options to use for mounting

Returns:

a MountConfig

addHandle

public static boolean addHandle(VirtualFile owner,
                                java.io.Closeable handle)

Add handle to owner, to be auto closed.

Parameters:

owner - the handle owner

handle - the handle

Returns:

add result

removeHandle

public static boolean removeHandle(VirtualFile owner,
                                   java.io.Closeable handle)

Remove handle from owner.

Parameters:

owner - the handle owner

handle - the handle

Returns:

remove result

cleanup

public static void cleanup(java.lang.Object owner)

Cleanup all references from the owner. Cleanup any mounted entries that become un-referenced in the process.

Parameters:

owner - Object to cleanup references for

cleanup

public static void cleanup(VirtualFile owner)

Cleanup all references from the owner. Cleanup any mounted entries that become un-referenced in the process.

Parameters:

owner - Object to cleanup references for

cleanup

public static void cleanup(MountOwner owner)

Cleanup all references from the MountOwner. Cleanup any mounted entries that become un-referenced in the process.

Parameters:

owner - MountOwner to cleanup references for

isMounted

public static boolean isMounted(VirtualFile target)

Determines whether a target VirtualFile is mounted.

Parameters:

target - target to check

Returns:

true if mounted, false otherwise

getEntry

static Automounter.RegistryEntry getEntry(VirtualFile virtualFile)

Get the entry from the tree creating the entry if not present.

Parameters:

virtualFile - entry's owner file

Returns:

registry entry

getTempFileProvider

private static TempFileProvider getTempFileProvider()
                                             throws java.io.IOException

Throws:

java.io.IOException