/**
* ================================================
* LibLoader : a free Java resource loading library
* ================================================
*
* Project Info: http://reporting.pentaho.org/libloader/
*
* (C) Copyright 2006, by Pentaho Corporation and Contributors.
*
* This library is free software; you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Foundation;
* either version 2.1 of the License, or (at your option) any later version.
*
* This library 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License along with this
* library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc.
* in the United States and other countries.]
*
*
* ------------
* $Id: ClassloaderResourceData.java 3520 2007-10-16 10:34:47Z tmorgner $
* ------------
* (C) Copyright 2006, by Pentaho Corporation.
*/
package org.jfree.resourceloader.loader.resource;
import java.io.InputStream;
import org.jfree.resourceloader.ResourceData;
import org.jfree.resourceloader.ResourceKey;
import org.jfree.resourceloader.ResourceLoadingException;
import org.jfree.resourceloader.ResourceManager;
import org.jfree.resourceloader.loader.AbstractResourceData;
import org.jfree.resourceloader.loader.LoaderUtils;
import org.jfree.util.ObjectUtilities;
/**
* Creation-Date: 05.04.2006, 15:15:36
*
* @author Thomas Morgner
*/
public class ClassloaderResourceData extends AbstractResourceData
{
private ResourceKey key;
private String resourcePath;
public ClassloaderResourceData(final ResourceKey key)
{
if (key == null)
{
throw new NullPointerException();
}
this.key = key;
final String rawPath = (String) key.getIdentifier();
this.resourcePath = rawPath.substring(6);
}
public InputStream getResourceAsStream(final ResourceManager caller) throws ResourceLoadingException
{
final InputStream stream = ObjectUtilities.getResourceAsStream
(resourcePath, ClassloaderResourceData.class);
if (stream == null)
{
throw new ResourceLoadingException("Resource is not available: " + resourcePath);
}
return stream;
}
public Object getAttribute(final String key)
{
// we do not support attributes ...
if (key.equals(ResourceData.FILENAME))
{
return LoaderUtils.getFileName(this.resourcePath);
}
return null;
}
public long getVersion(final ResourceManager caller)
throws ResourceLoadingException
{
// We assume, that the data does never change
// This way, we get the benefit of the cache.
return 0;
}
public ResourceKey getKey()
{
return key;
}
}