/*
* Copyright (C) 2004 TiongHiang Lee
*
* 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
*
* Email: thlee@onemindsoft.org
*/
package org.onemind.jxp;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import org.onemind.commons.java.util.FileUtils;
/**
* A JxpResourceSource uses resources from classpath as pages
* @author TiongHiang Lee (thlee@onemindsoft.org)
*
*/
public class ResourceStreamPageSource extends CachingPageSource
{
/** the prefix * */
private String _pathPrefix;
/**
* {@inheritDoc}
*/
public ResourceStreamPageSource(String pathPrefix)
{
_pathPrefix = pathPrefix;
}
/**
* {@inheritDoc}
*/
public ResourceStreamPageSource(String pathPrefix, String encoding)
{
this(pathPrefix);
setEncoding(encoding);
}
/**
* Get the path prefix
* @return the path prefix
*/
public final String getPathPrefix()
{
return _pathPrefix;
}
/**
* {@inheritDoc}
*/
public final String getStreamName(String pageName)
{
return FileUtils.concatFilePath(getPathPrefix(), pageName);
}
/**
* Set the pathPrefix
* @param pathPrefix The pathPrefix to set.
*/
public final void setPathPrefix(String pathPrefix)
{
_pathPrefix = pathPrefix;
}
/**
* {@inheritDoc}
*/
protected boolean isExpired(CachedJxpPage page)
{
return false;
}
/**
* {@inheritDoc}
*/
protected boolean hasStream(String pageName)
{
return getClass().getResource(getStreamName(pageName)) != null;
}
/**
* {@inheritDoc}
*/
protected InputStream loadStream(CachedJxpPage page) throws IOException
{
return getClass().getResourceAsStream(getStreamName(page.getName()));
}
}
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