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/*
 * JBoss, Home of Professional Open Source
 * Copyright 2006, Red Hat Middleware LLC, and individual contributors 
 * as indicated by the @author tags. 
 * See the copyright.txt in the distribution for a
 * full listing of individual contributors. 
 * This copyrighted material is made available to anyone wishing to use,
 * modify, copy, or redistribute it subject to the terms and conditions
 * of the GNU Lesser General Public License, v. 2.1.
 * This program is distributed in the hope that it will be useful, but WITHOUT A 
 * 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,
 * v.2.1 along with this distribution; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
 * MA  02110-1301, USA.
 * 
 * (C) 2005-2006,
 * @author JBoss Inc.
 */
/*
 * Copyright (C) 1998, 1999, 2000,
 *
 * Arjuna Solutions Limited,
 * Newcastle upon Tyne,
 * Tyne and Wear,
 * UK.  
 *
 * $Id$
 */

package com.arjuna.ats.internal.arjuna.common;

import java.io.IOException;

import com.arjuna.ats.arjuna.common.Uid;
import com.arjuna.ats.arjuna.state.InputBuffer;
import com.arjuna.ats.arjuna.state.OutputBuffer;

public class UidHelper
{
    public static final Uid unpackFrom (InputBuffer buff) throws IOException
    {
        if (buff == null)
            throw new IllegalArgumentException();
        
        return new Uid(buff.unpackBytes());
    }

    public static final void packInto (Uid u, OutputBuffer buff)
            throws IOException
    {
        if ((u == null) || (buff == null))
            throw new IllegalArgumentException();
        
        if (u.valid())
            buff.packBytes(u.getBytes());
        else
            throw new IllegalArgumentException();
    }

    private UidHelper()
    {
    }
}