Package net.sf.basedb.util.bfs

Class BaseInputStreamLocator

java.lang.Object

net.sf.basedb.util.bfs.BaseInputStreamLocator

All Implemented Interfaces:

InputStreamLocator

public class BaseInputStreamLocator
extends Object
implements InputStreamLocator

Input stream locator implementation that works with files within a given directory in the BASE 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 (fr, 29 jan 2010) $

Field Summary

Fields

Modifier and Type	Field	Description
private Map<String,File>	cache
private DbControl	dc
private Directory	dir

Constructor Summary

Constructors

Constructor	Description
BaseInputStreamLocator(DbControl dc, Directory dir)	Create a new input stream locator.

Method Summary

Modifier and Type	Method	Description
private File	getFile(String filename)
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 Details

dc

private final DbControl dc

dir

private final Directory dir

cache

private final Map<String,File> cache

Constructor Details

BaseInputStreamLocator

public BaseInputStreamLocator(DbControl dc,
Directory dir)

Create a new input stream locator.

Parameters:

dc - A DbControl to use for database access

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

Method Details

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

getFile

private File getFile(String filename)