/*
* P2P-Radio - Peer to peer streaming system
* Project homepage: http://p2p-radio.sourceforge.net/
* Copyright (C) 2003-2004 Michael Kaufmann <hallo@michael-kaufmann.ch>
*
* ---------------------------------------------------------------------------
* 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
* ---------------------------------------------------------------------------
*/
package p2pradio.packets;
import p2pradio.Metadata;
import java.io.*;
public class MetadataPacket extends MetaStreamPacket
{
private Metadata metadata;
public MetadataPacket(long seqNr, long timeStamp, Metadata metadata)
{
this(new byte[getMaxLength() + metadata.toByteArray().length], seqNr, timeStamp, metadata);
}
public MetadataPacket(byte content[], long seqNr, long timeStamp, Metadata metadata)
{
super(Packet.METADATA, content, seqNr, timeStamp);
this.metadata = metadata;
byte[] metadataBytes = metadata.toByteArray();
// L�nge der Metadaten speichern
writeInt(metadataBytes.length);
checkBytesLeft(metadataBytes.length);
// Metadaten kopieren
System.arraycopy(metadataBytes, 0, content, offset, metadataBytes.length);
offset += metadataBytes.length;
}
protected MetadataPacket(byte content[], int contentLength)
{
super(content, contentLength);
// L�nge der Metadaten lesen
int length = readInt();
checkBytesLeft(length);
// Metadaten von einem ByteArrayInputStream lesen
ByteArrayInputStream metadataStream = new ByteArrayInputStream(content, offset, length);
metadata = new Metadata(metadataStream);
offset += length;
}
// Die Methode getMaxLength() gibt hier nur eine
// Mindestl�nge zur�ck
protected static int getMaxLength()
{
return StreamPacket.getMaxLength() + 4;
}
protected String getTypeString()
{
return "Metadata"; //$NON-NLS-1$
}
public Metadata getMetadata()
{
return metadata;
}
}