001/*
002 * SVG Salamander
003 * Copyright (c) 2004, Mark McKay
004 * All rights reserved.
005 *
006 * Redistribution and use in source and binary forms, with or 
007 * without modification, are permitted provided that the following
008 * conditions are met:
009 *
010 *   - Redistributions of source code must retain the above 
011 *     copyright notice, this list of conditions and the following
012 *     disclaimer.
013 *   - Redistributions in binary form must reproduce the above
014 *     copyright notice, this list of conditions and the following
015 *     disclaimer in the documentation and/or other materials 
016 *     provided with the distribution.
017 *
018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
019 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
020 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
021 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
022 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
023 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
025 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
026 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
027 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
029 * OF THE POSSIBILITY OF SUCH DAMAGE. 
030 * 
031 * Mark McKay can be contacted at mark@kitfox.com.  Salamander and other
032 * projects can be found at http://www.kitfox.com
033 */
034
035package com.kitfox.svg.app.data;
036
037import com.kitfox.svg.SVGConst;
038import java.io.ByteArrayInputStream;
039import java.io.IOException;
040import java.io.InputStream;
041import java.net.URL;
042import java.net.URLConnection;
043import java.net.URLStreamHandler;
044import java.util.logging.Level;
045import java.util.logging.Logger;
046
047/**
048 *
049 * @author kitfox
050 */
051public class Handler extends URLStreamHandler
052{
053    class Connection extends URLConnection
054    {
055        String mime;
056        byte[] buf;
057
058        public Connection(URL url)
059        {
060            super(url);
061
062            String path = url.getPath();
063            int idx = path.indexOf(';');
064            mime = path.substring(0, idx);
065            String content = path.substring(idx + 1);
066
067            if (content.startsWith("base64,"))
068            {
069                content = content.substring(7);
070                try
071                {
072                    buf = new sun.misc.BASE64Decoder().decodeBuffer(content);
073                }
074                catch (IOException e)
075                {
076                    Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, null, e);
077                }
078            }
079        }
080        
081        public void connect() throws IOException
082        {
083        }
084
085        public String getHeaderField(String name)
086        {
087            if ("content-type".equals(name))
088            {
089                return mime;
090            }
091
092            return super.getHeaderField(name);
093        }
094
095        public InputStream getInputStream() throws IOException
096        {
097            return new ByteArrayInputStream(buf);
098        }
099
100//        public Object getContent() throws IOException
101//        {
102//            BufferedImage img = ImageIO.read(getInputStream());
103//        }
104    }
105
106    protected URLConnection openConnection(URL u) throws IOException
107    {
108        return new Connection(u);
109    }
110
111}