org.settings4j.contentresolver

Class FSContentResolver

java.lang.Object

org.settings4j.contentresolver.FSContentResolver

All Implemented Interfaces:

ContentResolver

public class FSContentResolver
extends Object
implements ContentResolver

ContentResolver implementation to read content from the File System.

The optional Path Prefix is "file:".

Absolute Windows paths contains a ":".
Absolute Unix paths starts with "/".
Other Paths are relative and uses the getRootFolder() as root. Which is per default new File(".").

Author:

Harald.Brabenetz

Field Summary

Fields

Modifier and Type	Field and Description
static String	FILE_URL_PREFIX Pseudo URL prefix for loading from the class path: "classpath:".

Constructor Summary

Constructors

Constructor and Description
FSContentResolver()

Method Summary

Methods

Modifier and Type	Method and Description
void	addContentResolver(ContentResolver contentResolver) Some Implementations of a ContentResolver are delegating the functionality to other ContentResolvers.
byte[]	getContent(String key) Reads the Content for the given Key or null if nothing where found.
File	getRootFolder() return the root of this FileSystem ContenResolver.
void	setContent(String key, byte[] value)
void	setRootFolderPath(String rootFolderPath)

Methods inherited from class java.lang.Object

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

Field Detail

FILE_URL_PREFIX

public static final String FILE_URL_PREFIX

Pseudo URL prefix for loading from the class path: "classpath:".

See Also:

Constant Field Values

Constructor Detail

FSContentResolver

public FSContentResolver()

Method Detail

addContentResolver

public void addContentResolver(ContentResolver contentResolver)

Some Implementations of a ContentResolver are delegating the functionality to other ContentResolvers.
Examples are: UnionContentResolver

 --------------------------------------
 <contentResolver name="DefaultContentResolver" class="org.settings4j.contentresolver.UnionContentResolver">
     <contentResolver-ref ref="FSContentResolver" />
     <contentResolver-ref ref="ClasspathContentResolver" />
 </contentResolver>
 --------------------------------------
 

Specified by:

addContentResolver in interface ContentResolver

Parameters:

contentResolver - the original contentResolver to delegate.

getContent

public byte[] getContent(String key)

Reads the Content for the given Key or null if nothing where found.

Specified by:

getContent in interface ContentResolver

Parameters:

key - The key

Returns:

The byte[] Content or null if nothing where found.

setContent

public void setContent(String key,
              byte[] value)
                throws IOException

Parameters:

key - The Settings4j Key.

value - The value to Store.

Throws:

IOException - if an error occured.

getRootFolder

public File getRootFolder()

return the root of this FileSystem ContenResolver.

if no one is set, the "." will be returned.

Returns:

the root of this FileSystem ContenResolver.

setRootFolderPath

public void setRootFolderPath(String rootFolderPath)

Parameters:

rootFolderPath - the root folder Path.