org.apache.commons.vfs2.impl
Class DefaultFileReplicator

java.lang.Object
  org.apache.commons.vfs2.provider.AbstractVfsComponent
      org.apache.commons.vfs2.impl.DefaultFileReplicator

All Implemented Interfaces:

FileReplicator, TemporaryFileStore, VfsComponent

public class DefaultFileReplicator
extends AbstractVfsComponent
implements FileReplicator, TemporaryFileStore

A simple file replicator and temporary file store.

Author:

Commons VFS team

Constructor Summary

DefaultFileReplicator()

DefaultFileReplicator(File tempDir)
constructor to set the location of the temporary directory.

Method Summary

protected void	addFile(Object file)
File	allocateFile(String baseName) Allocates a new temporary file.
void	close() Closes the replicator, deleting all temporary files.
protected File	createAndAddFile(File parent, String basename)
protected File	createFile(File parent, String name) create the temporary file
protected String	createFilename(String baseName) create the temporary file name
protected void	deleteFile(File file) physically deletes the file from the filesystem
protected long	getFilecount()
void	init() Initialises this component.
protected Object	removeFile() removes a file from the copies list.
protected void	removeFile(Object file) removes a instance from the list of copies
File	replicateFile(FileObject srcFile, FileSelector selector) Creates a local copy of the file, and all its descendents.

Methods inherited from class org.apache.commons.vfs2.provider.AbstractVfsComponent

getContext, getLogger, setContext, setLogger

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultFileReplicator

public DefaultFileReplicator(File tempDir)

constructor to set the location of the temporary directory.

Parameters:

tempDir - The temporary directory.

DefaultFileReplicator

public DefaultFileReplicator()

Method Detail

init

public void init()
          throws FileSystemException

Initialises this component.

Specified by:

init in interface VfsComponent

Overrides:

init in class AbstractVfsComponent

Throws:

FileSystemException - if an error occurs.

close

public void close()

Closes the replicator, deleting all temporary files.

Specified by:

close in interface VfsComponent

Overrides:

close in class AbstractVfsComponent

deleteFile

protected void deleteFile(File file)

physically deletes the file from the filesystem

Parameters:

file - The File to delete.

removeFile

protected Object removeFile()

removes a file from the copies list. Will be used for cleanup.
Notice: The system awaits that the returning object can be cast to a java.io.File

Returns:

the File that was removed.

removeFile

protected void removeFile(Object file)

removes a instance from the list of copies

Parameters:

file - The File to remove.

allocateFile

public File allocateFile(String baseName)
                  throws FileSystemException

Allocates a new temporary file.

Specified by:

allocateFile in interface TemporaryFileStore

Parameters:

baseName - the base file name.

Returns:

The created File.

Throws:

FileSystemException - if an error occurs.

createAndAddFile

protected File createAndAddFile(File parent,
                                String basename)
                         throws FileSystemException

Throws:

FileSystemException

addFile

protected void addFile(Object file)

getFilecount

protected long getFilecount()

createFilename

protected String createFilename(String baseName)

create the temporary file name

Parameters:

baseName - The base to prepend to the file name being created.

Returns:

the name of the File.

createFile

protected File createFile(File parent,
                          String name)
                   throws FileSystemException

create the temporary file

Parameters:

parent - The file to use as the parent of the file being created.

name - The name of the file to create.

Returns:

The File that was created.

Throws:

FileSystemException - if an error occurs creating the file.

replicateFile

public File replicateFile(FileObject srcFile,
                          FileSelector selector)
                   throws FileSystemException

Creates a local copy of the file, and all its descendents.

Specified by:

replicateFile in interface FileReplicator

Parameters:

srcFile - The file to copy.

selector - The FileSelector.

Returns:

the created File.

Throws:

FileSystemException - if an error occurs copying the file.