thredds.util.filesource

Class ChainedFileSource

java.lang.Object

thredds.util.filesource.ChainedFileSource

All Implemented Interfaces:

FileSource

public class ChainedFileSource
extends Object
implements FileSource

Implements the FileSource interface using a chain of DescendantFileSource objects. This allows a relative path to be given and located in the first DescendantFileSource that contains a matching File.

Since:

4.0

Constructor Summary

Constructors

Constructor and Description
ChainedFileSource(List<DescendantFileSource> chain)

Method Summary

Modifier and Type	Method and Description
File	getFile(String path) This implementation requires a relative path.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

ChainedFileSource

public ChainedFileSource(List<DescendantFileSource> chain)

Method Detail

getFile

public File getFile(String path)

This implementation requires a relative path. The relative path may not start with "../" or once "normalized" start with "../". Here "normalized" means that "./" and "path/.." segments are removed, e.g., "dir1/../../dir2" once normalized would be "../dir2".

Specified by:

getFile in interface FileSource

Parameters:

path - the relative path to the desired File.

Returns:

the File represented by the given relative path or null if the path is null or the File it represents does not exist.

toString

public String toString()

Overrides:

toString in class Object