com.asual.lesscss.loader

Class ChainedResourceLoader

java.lang.Object

com.asual.lesscss.loader.ChainedResourceLoader

All Implemented Interfaces:

ResourceLoader

public class ChainedResourceLoader
extends Object
implements ResourceLoader

A ResourceLoader delegates to a sequence of other loaders, asking each one for the requested resource in turn.

Author:

Rafał Krzewski

Constructor Summary

Constructors

Constructor and Description
ChainedResourceLoader(ResourceLoader... loaders) Creates a new ChainedResourceLoader.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	exists(String resource, String[] paths) Returns true, if any of the delegate loaders returns from #exists(String) for the given path.
String	load(String resource, String[] paths, String charset) The first delegate that returns from #exists(String) for the given path will have #load(String, String) invoked, and the result will be retured.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChainedResourceLoader

public ChainedResourceLoader(ResourceLoader... loaders)

Creates a new ChainedResourceLoader.

Parameters:

loaders - the loaders to delegate to. Order of the loaders is important.

Method Detail

exists

public boolean exists(String resource,
             String[] paths)
               throws IOException

Returns true, if any of the delegate loaders returns from #exists(String) for the given path.

Specified by:

exists in interface ResourceLoader

Parameters:

resource - relative resource file path.

paths - paths to search for resource under.

Returns:

true if the resource exists.

Throws:

IOException - when i/o error occurs while checking for resource existence.

load

public String load(String resource,
          String[] paths,
          String charset)
            throws IOException

The first delegate that returns from #exists(String) for the given path will have #load(String, String) invoked, and the result will be retured.

Specified by:

load in interface ResourceLoader

Parameters:

resource - relative resource file path.

paths - paths to search for resource under.

charset - character set name, valid with respect to Charset.

Returns:

resource contents as a string.

Throws:

IOException - when i/o error occurs while loading the resource, or charset is invalid.