org.wandora.utils.fileserver

Class SimpleVirtualFileSystem

java.lang.Object

org.wandora.utils.fileserver.SimpleVirtualFileSystem

All Implemented Interfaces:

VirtualFileSystem

public class SimpleVirtualFileSystem
extends java.lang.Object
implements VirtualFileSystem

This is an implementation of VirtualFileSystem. It must be initialized with a set of mount points. At least one for root directory and any number for other directories. Nested directories are not supported (directories inside directories), only subdirectories at root level. All files in the mounted directories show as virtual files but directories in them are not visible or accessible (unless separately mounted as virtual directories).

Author:

olli

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.HashMap	directories
private java.util.HashMap	urls

Constructor Summary

Constructors

Constructor and Description
SimpleVirtualFileSystem()
SimpleVirtualFileSystem(java.lang.String dir, java.lang.String loc, java.lang.String url) Creates a new instance of SimpleVirtualFileSystem

Method Summary

Modifier and Type	Method and Description
void	addDirectory(java.lang.String dir, java.lang.String loc, java.lang.String url)
java.lang.String	cleanFileName(java.lang.String f)
java.io.File	getRealFileFor(java.lang.String file) Gets the real File for a virtual file name.
java.lang.String	getURLFor(java.lang.String file) Returns an URL that can be used to access the given virtual file.
java.lang.String[]	listDirectories(java.lang.String dir) Lists all virtual directories inside the given virtual directory.
java.lang.String[]	listFiles(java.lang.String dir) Lists all virtual files in the given virual directory.

Methods inherited from class java.lang.Object

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

Field Detail

directories

private java.util.HashMap directories

urls

private java.util.HashMap urls

Constructor Detail

SimpleVirtualFileSystem

public SimpleVirtualFileSystem(java.lang.String dir,
                               java.lang.String loc,
                               java.lang.String url)

Creates a new instance of SimpleVirtualFileSystem

SimpleVirtualFileSystem

public SimpleVirtualFileSystem()

Method Detail

cleanFileName

public java.lang.String cleanFileName(java.lang.String f)

getRealFileFor

public java.io.File getRealFileFor(java.lang.String file)

Description copied from interface: VirtualFileSystem

Gets the real File for a virtual file name.

Specified by:

getRealFileFor in interface VirtualFileSystem

getURLFor

public java.lang.String getURLFor(java.lang.String file)

Description copied from interface: VirtualFileSystem

Returns an URL that can be used to access the given virtual file. If the file system does not support this kind of operation, returns null.

Specified by:

getURLFor in interface VirtualFileSystem

listDirectories

public java.lang.String[] listDirectories(java.lang.String dir)

Description copied from interface: VirtualFileSystem

Lists all virtual directories inside the given virtual directory.

Specified by:

listDirectories in interface VirtualFileSystem

listFiles

public java.lang.String[] listFiles(java.lang.String dir)

Description copied from interface: VirtualFileSystem

Lists all virtual files in the given virual directory.

Specified by:

listFiles in interface VirtualFileSystem

addDirectory

public void addDirectory(java.lang.String dir,
                         java.lang.String loc,
                         java.lang.String url)