/*
 * 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.*;
import java.util.HashMap;
import java.util.Map;
import org.onemind.jxp.parser.AstJxpDocument;
public class ByteArrayPageSource extends CachingPageSource
{

    private Map _buffers = new HashMap();

    protected AstJxpDocument parseJxpDocument(JxpPage page) throws JxpPageParseException
    {
        // TODO Auto-generated method stub
        return null;
    }

    public void putPageBuffer(String id, byte[] buffer)
    {
        _buffers.put(id, buffer);
    }

    protected boolean isExpired(CachedJxpPage page)
    {
        return false;
    }

    protected boolean hasStream(String pageName)
    {
        return _buffers.get(pageName) != null;
    }

    protected InputStream loadStream(CachedJxpPage page) throws IOException
    {
        byte[] buffer = (byte[]) _buffers.get(page.getName());
        if (buffer == null)
        {
            throw new IOException("Page " + page.getName() + " not found");
        } else
        {
            return new ByteArrayInputStream(buffer);
        }
    }
}