1 /*

     2 * Copyright (c) 2010 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:

    15 *

    16 */

    17 

    18 package com.nokia.mj.impl.rt.legacy;

    19 

    20 import javax.microedition.midlet.MIDlet;

    21 

    22 import com.nokia.mj.impl.rt.support.ApplicationInfo;

    23 

    24 /**

    25  * A class for porting legacy JSRs to new runtime.

    26  */

    27 public class LegacyRtPort

    28 {

    29 

    30     /**

    31      * A singleton instance.

    32      */

    33     private static LegacyRtPort mInstance = new LegacyRtPort();

    34 

    35     /**

    36      * The running MIDlet instance.

    37      */

    38     private MIDlet    mMidlet;

    39 

    40     /**

    41      * The registered UI toolkit.

    42      */

    43     private String    mRegisteredToolkit;

    44 

    45     /**

    46      * Contructor, allowed only for this class.

    47      */

    48     private LegacyRtPort()

    49     {

    50     }

    51 

    52     /**

    53      * Sets the running MIDlet.

    54      */

    55     static void setMidlet(MIDlet midlet)

    56     {

    57         mInstance.mMidlet = midlet;

    58     }

    59 

    60     /**

    61      * Gets the running MIDlet instance.

    62      */

    63     public static MIDlet getMidlet()

    64     {

    65         return mInstance.mMidlet;

    66     }

    67 

    68     /**

    69      * Gets the UID of the running MIDlet in int format.

    70      */

    71     public static int getMidletUid()

    72     {

    73         int midletUid = -1;

    74         try

    75         {

    76             String uidS = ApplicationInfo.getInstance().getUid().getStringValue();

    77             // In Symbian the UID is in format '[<uid>]' where <uid> is in hex

    78             // format. So wee need to take the brackets away.

    79             // Long is needed in conversion because UIDs greater than 0x80000000

    80             // would fail if Integer would be used. However typecast from long

    81             // to int is safe since UID in Symbian is 32 bit.

    82             long uidL = Long.parseLong(uidS.substring(1,uidS.length()-1), 16);

    83             return (int)uidL;

    84         }

    85         catch (Throwable t)

    86         {

    87         }

    88         return midletUid;

    89     }

    90 

    91 

    92     /**

    93      * Registers active UI toolkit. There can be only one active UI toolkit at the

    94      * same time.

    95      */

    96     public static void registerToolkit(String toolkitId)

    97     {

    98         if (mInstance.mRegisteredToolkit != null)

    99         {

   100             throw new RuntimeException("Could not register toolkit: " +

   101                                        toolkitId);

   102         }

   103         mInstance.mRegisteredToolkit = toolkitId;

   104     }

   105 

   106     /**

   107      * Unregisters the given UI toolkit.

   108      */

   109     public static void unRegisterToolkit(String toolkitId)

   110     {

   111         if (mInstance.mRegisteredToolkit != null &&

   112                 mInstance.mRegisteredToolkit.equals(toolkitId))

   113         {

   114             mInstance.mRegisteredToolkit = null;

   115         }

   116     }

   117 

   118     /**

   119      * Gets the active UI toolkit.

   120      */

   121     public static String getRegisteredToolkit()

   122     {

   123         return mInstance.mRegisteredToolkit;

   124     }

   125 

   126     /**

   127      * Gets the ApplicationId.

   128      */

   129     public static Object getApplicationId()

   130     {

   131         return mInstance;

   132     }

   133 

   134 }