/* ------------------------------------------------------------------
 * Copyright (C) 1998-2009 PacketVideo
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 * -------------------------------------------------------------------
 */
#ifndef PV_2WAY_ENGINE_FACTORY_H_INCLUDED
#define PV_2WAY_ENGINE_FACTORY_H_INCLUDED

#ifndef PV_2WAY_BASIC_TYPES_H_INCLUDED
#include "pv_2way_basic_types.h"
#endif

class PVCommandStatusObserver;
class PVInformationalEventObserver;
class PVErrorEventObserver;
class CPV2WayInterface;

class CPV2WayEngineFactory
{
    public:
        OSCL_IMPORT_REF static void Init();

        OSCL_IMPORT_REF static void Cleanup();

        /**
         * Creates an instance of a terminal of a particular type.  Initially, this
         * will support 324m type terminals.
         *
         * @param aTerminalType the type of terminal to be created.
         * @param aCmdStatusObserver     the observer for command status
         * @param aInfoEventObserver     the observer for unsolicited informational events
         * @param aErrorEventObserver     the observer for unsolicited error events
         *
         * @returns A pointer to a terminal or leaves if the type is invalid or the system is out of resources
         **/
        OSCL_IMPORT_REF static CPV2WayInterface *CreateTerminal(PV2WayTerminalType aTerminalType,
                PVCommandStatusObserver* aCmdStatusObserver,
                PVInformationalEventObserver *aInfoEventObserver,
                PVErrorEventObserver *aErrorEventObserver);

        /**
         * This function allows the application to delete an instance of a terminal
         * and reclaim all allocated resources.  A terminal should be deleted only in
         * the EIdle state.  An attempt to delete a terminal in any other state will
         * result in unpredictable behavior.
         *
         * @param terminal the terminal to be deleted.
         *
         **/
        OSCL_IMPORT_REF static void DeleteTerminal(CPV2WayInterface* terminal);
};

#endif // PV_2WAY_ENGINE_FACTORY_H_INCLUDED