/*
 * Copyright 1999-2004 Sun Microsystems, Inc.  All Rights Reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Sun designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Sun in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
 * CA 95054 USA or visit www.sun.com if you need additional information or
 * have any questions.
 */
package com.sun.corba.se.impl.oa.poa;

import java.util.EmptyStackException;

import org.omg.PortableServer.*;

import com.sun.corba.se.spi.orb.ORB ;

import com.sun.corba.se.spi.logging.CORBALogDomains ;

import com.sun.corba.se.impl.logging.POASystemException ;

public class DelegateImpl implements org.omg.PortableServer.portable.Delegate
{
    private ORB orb ;
    private POASystemException wrapper ;
    private POAFactory factory;

    public DelegateImpl(ORB orb, POAFactory factory){
        this.orb = orb ;
        this.wrapper = POASystemException.get( orb,
            CORBALogDomains.OA ) ;
        this.factory = factory;
    }

    public org.omg.CORBA.ORB orb(Servant self)
    {
        return orb;
    }

    public org.omg.CORBA.Object this_object(Servant self)
    {
        byte[] oid;
        POA poa;
        try {
            oid = orb.peekInvocationInfo().id();
            poa = (POA)orb.peekInvocationInfo().oa();
            String repId = self._all_interfaces(poa,oid)[0] ;
            return poa.create_reference_with_id(oid, repId);
        } catch (EmptyStackException notInInvocationE) {
            //Not within an invocation context
            POAImpl defaultPOA = null;
            try {
                defaultPOA = (POAImpl)self._default_POA();
            } catch (ClassCastException exception){
                throw wrapper.defaultPoaNotPoaimpl( exception ) ;
            }

            try {
                if (defaultPOA.getPolicies().isImplicitlyActivated() ||
                    (defaultPOA.getPolicies().isUniqueIds() &&
                     defaultPOA.getPolicies().retainServants())) {
                    return defaultPOA.servant_to_reference(self);
                } else {
                    throw wrapper.wrongPoliciesForThisObject() ;
                }
            } catch ( org.omg.PortableServer.POAPackage.ServantNotActive e) {
                throw wrapper.thisObjectServantNotActive( e ) ;
            } catch ( org.omg.PortableServer.POAPackage.WrongPolicy e) {
                throw wrapper.thisObjectWrongPolicy( e ) ;
            }
        } catch (ClassCastException e) {
            throw wrapper.defaultPoaNotPoaimpl( e ) ;
        }
    }

    public POA poa(Servant self)
    {
        try {
            return (POA)orb.peekInvocationInfo().oa();
        } catch (EmptyStackException exception){
            POA returnValue = factory.lookupPOA(self);
            if (returnValue != null) {
                return returnValue;
            }

            throw wrapper.noContext( exception ) ;
        }
    }

    public byte[] object_id(Servant self)
    {
        try{
            return orb.peekInvocationInfo().id();
        } catch (EmptyStackException exception){
            throw wrapper.noContext(exception) ;
        }
    }

    public POA default_POA(Servant self)
    {
        return factory.getRootPOA();
    }

    public boolean is_a(Servant self, String repId)
    {
        String[] repositoryIds = self._all_interfaces(poa(self),object_id(self));
        for ( int i=0; i<repositoryIds.length; i++ )
            if ( repId.equals(repositoryIds[i]) )
                return true;

        return false;
    }

    public boolean non_existent(Servant self)
    {
        //REVISIT
        try{
            byte[] oid = orb.peekInvocationInfo().id();
            if( oid == null) return true;
            else return false;
        } catch (EmptyStackException exception){
            throw wrapper.noContext(exception) ;
        }
    }

    // The get_interface() method has been replaced by get_interface_def()

    public org.omg.CORBA.Object get_interface_def(Servant Self)
    {
        throw wrapper.methodNotImplemented() ;
    }
}
