/* *************************************************************************** *
Copyright 2009 Georg Merzdovnik, Gerald Wodni
This file is part of ninjaFS.
ninjaFS 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 3 of the License, or
(at your option) any later version.
ninjaFS 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, see <http://www.gnu.org/licenses/>.
* *************************************************************************** */
package ninjaFS.Rpc;
public class Handler
{
protected Call call;
protected byte[] data;
protected int readOffset;
public Handler( Call call )
{
this.call = call;
this.data = call.getData();
this.readOffset = call.getReadOffset();
}
public static Handler create( Call call )
{
/* check if version matches */
if( call.getRpcVersion() == Message.Constants.Rpc.currentVersion )
{
/* check for matching program */
if( call.getProgram() == Message.ProgramNumbers.Portmapper )
return new PortmapperHandler( call );
else if( call.getProgram() == Message.ProgramNumbers.Nfs )
return new NfsHandler( call );
else if( call.getProgram() == Message.ProgramNumbers.Mount )
return new MountHandler( call);
}
/* nothing found, return default handler */
return new Handler( call );
}
protected long readUInt32()
{
long retter = 0;
for( int i = 0; i < 4; i++ )
{
retter <<= 8;
retter |= ((long) this.data[this.readOffset++]) & 0xFF;
}
return retter;
}
/* return rpc-version error or programunavailable */
public Reply read()
{
Reply reply;
if( this.call.getRpcVersion() != Message.Constants.Rpc.currentVersion )
reply = new Reply( this.call, Message.Constants.Rpc.replyStatus.Denied, Message.Constants.Rpc.rejectedStatus.RpcMissmatch );
else
reply = new Reply( this.call, Message.Constants.Rpc.replyStatus.Accepted, Message.Constants.Rpc.acceptedStatus.ProgramUnavailable );
reply.write();
return reply;
}
public String toString()
{
return "Handler";
}
}