// Copyright 2005 The Apache Software Foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package org.apache.tapestry.web;
import java.net.URL;
import java.util.Locale;
import javax.servlet.ServletContext;
import org.apache.hivemind.Resource;
import org.apache.hivemind.util.AbstractResource;
import org.apache.hivemind.util.LocalizedResource;
/**
* Implementation of {@link org.apache.hivemind.Resource}for resources found within a
* {@link org.apache.tapestry.web.WebContext}.
*
* @author Howard Lewis Ship
* @since 4.0
*/
public class WebContextResource extends AbstractResource
{
private WebContext _context;
public WebContextResource(WebContext context, String path)
{
this(context, path, null);
}
public WebContextResource(WebContext context, String path, Locale locale)
{
super(path, locale);
_context = context;
}
/**
* Locates the resource using {@link LocalizedWebContextResourceFinder}and
* {@link ServletContext#getResource(java.lang.String)}.
*/
public Resource getLocalization(Locale locale)
{
LocalizedWebContextResourceFinder finder = new LocalizedWebContextResourceFinder(_context);
String path = getPath();
LocalizedResource localizedResource = finder.resolve(path, locale);
if (localizedResource == null)
return null;
String localizedPath = localizedResource.getResourcePath();
Locale pathLocale = localizedResource.getResourceLocale();
if (localizedPath == null)
return null;
if (path.equals(localizedPath))
return this;
return new WebContextResource(_context, localizedPath, pathLocale);
}
public URL getResourceURL()
{
return _context.getResource(getPath());
}
public String toString()
{
return "context:" + getPath();
}
public int hashCode()
{
return 2387 & getPath().hashCode();
}
protected Resource newResource(String path)
{
return new WebContextResource(_context, path);
}
}