// BlogBridge -- RSS feed reader, manager, and web based service
// Copyright (C) 2002-2006 by R. Pito Salas
//
// This program is free software; you can redistribute it and/or modify it under
// the terms of the GNU General Public License as published by the Free Software Foundation;
// either version 2 of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
// without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along with this program;
// if not, write to the Free Software Foundation, Inc., 59 Temple Place,
// Suite 330, Boston, MA 02111-1307 USA
//
// Contact: R. Pito Salas
// mailto:pitosalas@users.sourceforge.net
// More information: about BlogBridge
// http://www.blogbridge.com
// http://sourceforge.net/projects/blogbridge
//
// $Id: RemoteStylesheet.java,v 1.4 2007/10/01 17:03:27 spyromus Exp $
//
package com.salas.bb.views.stylesheets;
import com.salas.bb.views.stylesheets.loader.DirectLoader;
import com.salas.bb.views.stylesheets.loader.ILoader;
import java.io.File;
import java.io.IOException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Manages suggestions list style.
*/
class RemoteStylesheet extends AbstractStylesheet
{
private static final Logger LOG = Logger.getLogger(RemoteStylesheet.class.getName());
private final URL baseURL;
private final String name;
private final ILoader loader;
private final boolean initialized;
/**
* Creates a stylesheet.
*
* @param baseURL base URL of the stylesheet.
* @param name stylesheet path relative to the URL.
* @param cacheDir the directory to use for caches.
*/
public RemoteStylesheet(URL baseURL, String name, File cacheDir)
{
this.baseURL = baseURL;
this.name = name;
this.loader = new DirectLoader(); //new CachingLoader(cacheDir, super.getLoader());
boolean init = true;
try
{
update();
} catch (IOException e)
{
LOG.log(Level.WARNING, "Failed to initialize stylesheet.", e);
init = false;
}
initialized = init;
}
/**
* Returns <code>TRUE</code> if was successfully initialized.
*
* @return <code>TRUE</code> if was successfully initialized.
*/
public boolean isInitialized()
{
return initialized;
}
/**
* Gets updated stylesheet.
*
* @return new stylesheet or <code>NULL</code> if nothing changed.
*
* @throws IOException if loading failed.
*/
protected String getUpdatedStylesheet()
throws IOException
{
return getLoader().loadStylesheet(baseURL, name);
}
/**
* Returns base URL of this stylesheet to resolveURI relative icon addresses (can be <code>NULL</code>).
*
* @return base URL.
*/
protected URL getStylesheetBaseURL()
{
return baseURL;
}
/**
* Returns the loader to use.
*
* @return loader.
*/
protected ILoader getLoader()
{
return loader;
}
/**
* Checks for updates of the stylesheet and prerequisites.
*
* @throws java.io.IOException if loading failed.
*/
public void update()
throws IOException
{
// All remote stylesheets share the same cache folder so far
// and we have no right to remove everything.
// StylesheetManager does this.
// loader.clearCache();
super.update();
}
}