/*

 * 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

 * particular file as subject to the "Classpath" exception as provided

 *

 * 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.

 *

 */

package com.sun.corba.se.impl.oa.poa ;

import java.util.Enumeration ;

import org.omg.PortableServer.Servant ;

import org.omg.PortableServer.ServantManager ;

import org.omg.PortableServer.ForwardRequest ;

import org.omg.PortableServer.POAPackage.WrongPolicy ;

import org.omg.PortableServer.POAPackage.ObjectNotActive ;

import org.omg.PortableServer.POAPackage.ServantNotActive ;

import org.omg.PortableServer.POAPackage.ObjectAlreadyActive ;

import org.omg.PortableServer.POAPackage.ServantAlreadyActive ;

import org.omg.PortableServer.POAPackage.NoServant ;

import com.sun.corba.se.impl.orbutil.concurrent.SyncUtil ;

import com.sun.corba.se.impl.orbutil.ORBUtility ;

import com.sun.corba.se.impl.orbutil.ORBConstants ;

/** Implementation of POARequesHandler that provides policy specific

 * operations on the POA.

 */

public class POAPolicyMediatorImpl_R_UDS extends POAPolicyMediatorBase_R {

    private Servant defaultServant ;

    POAPolicyMediatorImpl_R_UDS( Policies policies, POAImpl poa )

    {

        // assert policies.retainServants()

        super( policies, poa ) ;

        defaultServant = null ;

        // policies.useDefaultServant()

        if (!policies.useDefaultServant())

            throw poa.invocationWrapper().policyMediatorBadPolicyInFactory() ;

    }

    protected java.lang.Object internalGetServant( byte[] id,

        String operation ) throws ForwardRequest

    {

        Servant servant = internalIdToServant( id ) ;

        if (servant == null)

            servant = defaultServant ;

        if (servant == null)

            throw poa.invocationWrapper().poaNoDefaultServant() ;

        return servant ;

    }

    public void etherealizeAll()

    {

        // NO-OP

    }

    public ServantManager getServantManager() throws WrongPolicy

    {

        throw new WrongPolicy();

    }

    public void setServantManager( ServantManager servantManager ) throws WrongPolicy

    {

        throw new WrongPolicy();

    }

    public Servant getDefaultServant() throws NoServant, WrongPolicy

    {

        if (defaultServant == null)

            throw new NoServant();

        else

            return defaultServant;

    }

    public void setDefaultServant( Servant servant ) throws WrongPolicy

    {

        defaultServant = servant;

        setDelegate(defaultServant, "DefaultServant".getBytes());

    }

    public Servant idToServant( byte[] id )

        throws WrongPolicy, ObjectNotActive

    {

        ActiveObjectMap.Key key = new ActiveObjectMap.Key( id ) ;

        Servant s = internalKeyToServant(key);

        if (s == null)

            if (defaultServant != null)

                s = defaultServant;

        if (s == null)

            throw new ObjectNotActive() ;

        return s;

    }

}