net.sf.basedb.util.bfs
Class DiskInputStreamLocator

java.lang.Object
  net.sf.basedb.util.bfs.DiskInputStreamLocator

All Implemented Interfaces:

InputStreamLocator

public class DiskInputStreamLocator
extends Object
implements InputStreamLocator

Input stream locator implementation that works with files on the local file system. The files must be located in the specified root directory. Subdirectories or parent paths are not supported.

Version:

2.15

Author:

Nicklas

Last modified

$Date: 2010-01-29 14:34:03 +0100 (Fri, 29 Jan 2010) $

Field Summary

private File

dir

Constructor Summary

DiskInputStreamLocator(File dir)
Create a new input stream locator.

Method Summary

InputStream	getInputStream(String filename) Finds and opens an input stream to the file with the given filename.
long	getSize(String filename) Get the size in bytes of the given named resource.

Methods inherited from class java.lang.Object

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

Field Detail

dir

private final File dir

Constructor Detail

DiskInputStreamLocator

public DiskInputStreamLocator(File dir)
                       throws IOException

Create a new input stream locator.

Parameters:

dir - The directory in the local file system in which the files should be located

Throws:

NullPointerException - If the dir parameter is null

FileNotFoundException - If the given path is not an existing directory

IOException

Method Detail

getInputStream

public InputStream getInputStream(String filename)
                           throws IOException

Finds and opens an input stream to the file with the given filename.

Specified by:

getInputStream in interface InputStreamLocator

Parameters:

filename - The name (for example a file name) of the resource

Returns:

An input stream

Throws:

IOException - If there is any problem with locating or opening the resource

getSize

public long getSize(String filename)

Description copied from interface: InputStreamLocator

Get the size in bytes of the given named resource.

Specified by:

getSize in interface InputStreamLocator

Parameters:

filename - The name (for example a file name) of the resouce

Returns:

The size in bytes, or -1 if not known