org.apache.commons.vfs.provider.ram
Class RamFileSystem

java.lang.Object
  org.apache.commons.vfs.provider.AbstractVfsComponent
      org.apache.commons.vfs.provider.AbstractFileSystem
          org.apache.commons.vfs.provider.ram.RamFileSystem

All Implemented Interfaces:

java.io.Serializable, FileSystem, VfsComponent

public class RamFileSystem
extends AbstractFileSystem
implements java.io.Serializable

A RAM File System

See Also:

Serialized Form

Field Summary

private java.util.Map

cache Cache of RAM File Data

Constructor Summary

protected

RamFileSystem(FileName rootName, FileSystemOptions fileSystemOptions)

Method Summary

protected void	addCapabilities(java.util.Collection caps) Adds the capabilities of this file system.
void	attach(RamFileObject fo)
void	close() Close the RAMFileSystem
protected FileObject	createFile(FileName name) Creates a file object.
(package private) void	delete(RamFileObject file) Delete a file
void	importTree(java.io.File file) Import a Tree
(package private) java.lang.String[]	listChildren(FileName name)
(package private) void	rename(RamFileObject from, RamFileObject to)
(package private) void	save(RamFileObject file) Saves a file
(package private) int	size()
(package private) void	toRamFileObject(FileObject fo, FileObject root) Import the given file with the name relative to the given root

Methods inherited from class org.apache.commons.vfs.provider.AbstractFileSystem

addJunction, addListener, closeCommunicationLink, decorateFileObject, doCloseCommunicationLink, doReplicateFile, fireFileChanged, fireFileCreated, fireFileDeleted, getAttribute, getFileFromCache, getFileSystemManager, getFileSystemOptions, getLastModTimeAccuracy, getParentLayer, getRoot, getRootName, hasCapability, init, isOpen, isReleaseable, notifyAllStreamsClosed, putFileToCache, removeFileFromCache, removeJunction, removeListener, replicateFile, resolveFile, resolveFile, setAttribute

Methods inherited from class org.apache.commons.vfs.provider.AbstractVfsComponent

getContext, getLogger, setContext, setLogger

Methods inherited from class java.lang.Object

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

Field Detail

cache

private java.util.Map cache

Cache of RAM File Data

Constructor Detail

RamFileSystem

protected RamFileSystem(FileName rootName,
                        FileSystemOptions fileSystemOptions)

Parameters:

rootName -

fileSystemOptions -

Method Detail

createFile

protected FileObject createFile(FileName name)
                         throws java.lang.Exception

Description copied from class: AbstractFileSystem

Creates a file object. This method is called only if the requested file is not cached.

Specified by:

createFile in class AbstractFileSystem

Throws:

java.lang.Exception

addCapabilities

protected void addCapabilities(java.util.Collection caps)

Description copied from class: AbstractFileSystem

Adds the capabilities of this file system.

Specified by:

addCapabilities in class AbstractFileSystem

listChildren

java.lang.String[] listChildren(FileName name)

Parameters:

name -

Returns:

children

delete

void delete(RamFileObject file)
      throws FileSystemException

Delete a file

Parameters:

file -

Throws:

FileSystemException

save

void save(RamFileObject file)
    throws FileSystemException

Saves a file

Parameters:

file -

Throws:

FileSystemException

rename

void rename(RamFileObject from,
            RamFileObject to)
      throws FileSystemException

Parameters:

from -

to -

Throws:

FileSystemException

attach

public void attach(RamFileObject fo)

importTree

public void importTree(java.io.File file)
                throws FileSystemException

Import a Tree

Parameters:

file -

Throws:

FileSystemException

toRamFileObject

void toRamFileObject(FileObject fo,
                     FileObject root)
               throws FileSystemException

Import the given file with the name relative to the given root

Parameters:

fo -

root -

Throws:

FileSystemException

size

int size()

Returns:

Returns the size of the FileSystem

close

public void close()

Close the RAMFileSystem

Specified by:

close in interface VfsComponent

Overrides:

close in class AbstractFileSystem