1 /*

     2 * Copyright (c) 2002 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  This class setup MMA plugins.

    15 *

    16 */

    17 

    18 

    19 package com.nokia.microedition.media;

    20 

    21 import com.nokia.mj.impl.utils.Logger;

    22 

    23 /**

    24  * Class used to setup external components.

    25  */

    26 public class Setup

    27 {

    28     // Class names used to invoke external components.

    29     private static final String[] MMA_PLUGINS =

    30     {

    31         //"com.nokia.amms.MMAInvokeListenerImpl"

    32     };

    33 

    34     /**

    35      * Private constructor not to allow construction.

    36      */

    37     private Setup()

    38     {

    39     }

    40 

    41     /**

    42      * Setup external components.

    43      * @param aEventSourceHandle Native handle MMA event source.

    44      */

    45     public static void setup(int aEventSourceHandle)

    46     {

    47         // Go through all plugins

    48         for (int i = 0; i < MMA_PLUGINS.length; i++)

    49         {

    50             invokeComponent(aEventSourceHandle, MMA_PLUGINS[ i ]);

    51         }

    52     }

    53 

    54     /**

    55      * Invokes other component. This method returns without creating the

    56      * components if the class is not found.

    57      *

    58      * @param aEventSourceHandle Handle to native mma event source.

    59      * @param aClassName Full class name to create. Class must have public

    60      * default constructor and implement MMAInvokeListener interface.

    61      * @throws OutOfMemoryError if component cannot be created.

    62      */

    63     private static void invokeComponent(int aEventSourceHandle, String aClassName)

    64     {

    65         try

    66         {

    67             Class invokerClass =

    68                 Class.forName(aClassName);

    69             MMAInvokeListener invoker =

    70                 (MMAInvokeListener)invokerClass.newInstance();

    71             invoker.notifyInvoke(aEventSourceHandle);

    72         }

    73         catch (InstantiationException ie)

    74         {

    75             throw new OutOfMemoryError("Instantiation failed, " + ie.toString());

    76         }

    77         catch (IllegalAccessException iae)

    78         {

    79             throw new OutOfMemoryError("Illegal access, " + iae.toString());

    80         }

    81         catch (ClassNotFoundException cnfe)

    82         {

    83             // If invoker class cannot be found, plugin is not added to J2ME

    84             // build and MMA is used without it.

    85             Logger.ELOG(Logger.EJavaMMAPI, "MMA::Setup:: ", cnfe);

    86         }

    87     }

    88 }

    89 // End of File

    90