/*
 *        JacORB - a free Java ORB
 *
 *   Copyright (C) 1999-2004 Gerald Brose
 *
 *   This library is free software; you can redistribute it and/or
 *   modify it under the terms of the GNU Library General Public
 *   License as published by the Free Software Foundation; either
 *   version 2 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
 *   Library General Public License for more details.
 *
 *   You should have received a copy of the GNU Library General Public
 *   License along with this library; if not, write to the Free
 *   Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 */
package org.jacorb.orb.portableInterceptor;

import org.omg.CORBA.Any;
import org.omg.CORBA.ORB;
import org.omg.PortableInterceptor.InvalidSlot;

/**
 * This is the current object for the portable
 * interceptors. It is merely a slot table, but
 * can be bound to a thread scope.
 *
 * See PI Spec p. 6-55ff
 *
 * @author Nicolas Noffke
 * @version $Id: PICurrentImpl.java,v 1.12 2008-11-14 08:55:34 nick.cross Exp $
 */

public class PICurrentImpl extends org.omg.CORBA.LocalObject
    implements org.omg.PortableInterceptor.Current
{
    private final Any[] m_slots;
    private final ORB m_orb;

    /**
     * Create an empty current object.
     * All slots will contain an empty Any.
     */
    public PICurrentImpl(ORB orb, int no_of_anys)
    {
        m_orb = orb;
        m_slots = new Any[no_of_anys];

        for(int _i = 0; _i < m_slots.length; _i++)
        {
            m_slots[_i] = m_orb.create_any();
        }
    }

    /**
     * Make a deep copy of an existing PICurrent.
     */
    public PICurrentImpl(PICurrentImpl source)
    {
        m_orb = source.m_orb;
        m_slots = new Any[source.m_slots.length];

        for(int _i = 0; _i < m_slots.length; _i++)
        {
            m_slots[_i] = m_orb.create_any();
            ((org.jacorb.orb.Any) m_slots[_i]).insert_object(source.m_slots[_i].type(),
                    ((org.jacorb.orb.Any) source.m_slots[_i]).value());
        }
    }

    // implementation of org.omg.PortableInterceptor.CurrentOperations interface
    public Any get_slot(int id) throws InvalidSlot
    {
        if ((id >= m_slots.length) || (id < 0))
        {
            throw new InvalidSlot();
        }

        return m_slots[id];
    }

    public void set_slot(int id, Any data) throws InvalidSlot
    {
        if ((id >= m_slots.length) || (id < 0))
        {
            throw new InvalidSlot();
        }

        m_slots[id] = data;
    }
} // PICurrentImpl
