org.zkoss.web.util.resource
Class ResourceLoader

java.lang.Object
  org.zkoss.web.util.resource.ResourceLoader

All Implemented Interfaces:

org.zkoss.util.resource.Loader

public abstract class ResourceLoader
extends Object
implements org.zkoss.util.resource.Loader

A semi-implemented loader to used with ResourceCaches.get(org.zkoss.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object) to retrieve servlet resources.

Author:

tomyeh

Nested Class Summary

Nested classes/interfaces inherited from interface org.zkoss.util.resource.Loader

org.zkoss.util.resource.Loader.Resource

Constructor Summary

protected

ResourceLoader()

Method Summary

long	getLastModified(Object src)
Object	load(Object src)
protected abstract Object	parse(String path, File file, Object extra) Parses the specified file and returns the result which will be stored into the cache (ResourceCaches.get(org.zkoss.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object)).
protected abstract Object	parse(String path, URL url, Object extra) Parses the specified URL and returns the result which will be stored into the cache (ResourceCaches.get(org.zkoss.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object)).
boolean	shallCheck(Object src, long expiredMillis)

Methods inherited from class java.lang.Object

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

Constructor Detail

ResourceLoader

protected ResourceLoader()

Method Detail

parse

protected abstract Object parse(String path,
                                File file,
                                Object extra)
                         throws Exception

Parses the specified file and returns the result which will be stored into the cache (ResourceCaches.get(org.zkoss.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object)).

Deriving must override this method.

Parameters:

extra - the extra paramter passed from ResourceCaches.get(org.zkoss.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object).

Throws:

Exception

parse

protected abstract Object parse(String path,
                                URL url,
                                Object extra)
                         throws Exception

Parses the specified URL and returns the result which will be stored into the cache (ResourceCaches.get(org.zkoss.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object)).

Deriving must override this method.

Parameters:

extra - the extra paramter passed from ResourceCaches.get(org.zkoss.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object).

Throws:

Exception

shallCheck

public boolean shallCheck(Object src,
                          long expiredMillis)

Specified by:

shallCheck in interface org.zkoss.util.resource.Loader

getLastModified

public long getLastModified(Object src)

Specified by:

getLastModified in interface org.zkoss.util.resource.Loader

load

public Object load(Object src)
            throws Exception

Specified by:

load in interface org.zkoss.util.resource.Loader

Throws:

Exception