org.zkoss.web.util.resource
Class ResourceLoader<V>

java.lang.Object
  org.zkoss.web.util.resource.ResourceLoader<V>

All Implemented Interfaces:

org.zkoss.util.resource.Loader<org.zkoss.web.util.resource.ResourceInfo,V>

public abstract class ResourceLoader<V>
extends Object
implements org.zkoss.util.resource.Loader<org.zkoss.web.util.resource.ResourceInfo,V>

A semi-implemented loader to used with ResourceCaches.get(org.zkoss.web.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<V>

Constructor Summary

protected

ResourceLoader()

Method Summary

long	getLastModified(org.zkoss.web.util.resource.ResourceInfo src)
V	load(org.zkoss.web.util.resource.ResourceInfo src)
protected abstract V	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.web.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object)).
protected abstract V	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.web.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object)).
boolean	shallCheck(org.zkoss.web.util.resource.ResourceInfo 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 V 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.web.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object)).

Deriving must override this method.

Parameters:

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

Throws:

Exception

parse

protected abstract V 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.web.util.resource.ResourceCache, javax.servlet.ServletContext, java.lang.String, java.lang.Object)).

Deriving must override this method.

Parameters:

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

Throws:

Exception

shallCheck

public boolean shallCheck(org.zkoss.web.util.resource.ResourceInfo src,
                          long expiredMillis)

Specified by:

shallCheck in interface org.zkoss.util.resource.Loader<org.zkoss.web.util.resource.ResourceInfo,V>

getLastModified

public long getLastModified(org.zkoss.web.util.resource.ResourceInfo src)

Specified by:

getLastModified in interface org.zkoss.util.resource.Loader<org.zkoss.web.util.resource.ResourceInfo,V>

load

public V load(org.zkoss.web.util.resource.ResourceInfo src)
       throws Exception

Specified by:

load in interface org.zkoss.util.resource.Loader<org.zkoss.web.util.resource.ResourceInfo,V>

Throws:

Exception