org.apache.commons.vfs.provider.jar
Class JarFileProvider

java.lang.Object
  org.apache.commons.vfs.provider.AbstractVfsComponent
      org.apache.commons.vfs.provider.AbstractVfsContainer
          org.apache.commons.vfs.provider.AbstractFileProvider
              org.apache.commons.vfs.provider.AbstractLayeredFileProvider
                  org.apache.commons.vfs.provider.zip.ZipFileProvider
                      org.apache.commons.vfs.provider.jar.JarFileProvider

All Implemented Interfaces:

FileProvider, VfsComponent

public class JarFileProvider

extends ZipFileProvider

A file system provider for Jar files. Provides read-only file systems. This provides access to Jar specific features like Signing and Manifest Attributes.

Version:

$Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $

Author:

Brian Olsen

Constructor Summary

JarFileProvider()

Method Summary

protected FileSystem	doCreateFileSystem(String scheme, FileObject file, FileSystemOptions fileSystemOptions) Creates a layered file system.
Collection	getCapabilities() Get the filesystem capabilities.

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

createFileSystem, findFile

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

addFileSystem, close, closeFileSystem, findFileSystem, freeUnusedResources, getConfigBuilder, getFileNameParser, parseUri, setFileNameParser

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

addComponent, removeComponent

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

getContext, getLogger, init, setContext, setLogger

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.commons.vfs.provider.FileProvider

createFileSystem, findFile, getConfigBuilder, parseUri

Constructor Detail

JarFileProvider

public JarFileProvider()

Method Detail

doCreateFileSystem

protected FileSystem doCreateFileSystem(String scheme,
                                        FileObject file,
                                        FileSystemOptions fileSystemOptions)
                                 throws FileSystemException

Creates a layered file system. This method is called if the file system is not cached.

Overrides:

doCreateFileSystem in class ZipFileProvider

Parameters:

scheme - The URI scheme.

file - The file to create the file system on top of.

Returns:

The file system.

Throws:

FileSystemException

getCapabilities

public Collection getCapabilities()

Description copied from interface: FileProvider

Get the filesystem capabilities.
These are the same as on the filesystem, but available before the first filesystem was instanciated.

Specified by:

getCapabilities in interface FileProvider

Overrides:

getCapabilities in class ZipFileProvider