1 /*

     2  * Copyright (c) 2009 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: Plugin Loader class

    15  *

    16  */

    17 

    18 // System Includes

    19 

    20 #include <QDir>

    21 #include "debugtraces.h"

    22 

    23 #include <QLibraryInfo>

    24 #include <QPluginLoader>

    25 #include "unidatamodelloader.h"

    26 #include "unidatamodelplugininterface.h"

    27 

    28 //---------------------------------------------------------------

    29 //UniDataModelLoader::UniDataModelLoader()

    30 //@see header

    31 //---------------------------------------------------------------

    32 UniDataModelLoader::UniDataModelLoader()

    33 {

    34 }

    35 

    36 //---------------------------------------------------------------

    37 //UniDataModelLoader::~UniDataModelLoader()

    38 //@see header

    39 //---------------------------------------------------------------

    40 UniDataModelLoader::~UniDataModelLoader()

    41 {

    42     QMap<QString, UniDataModelPluginInterface*>::iterator mapItor;

    43     for (mapItor = mDataModelPluginMap.begin(); mapItor

    44             != mDataModelPluginMap.end(); ++mapItor)

    45     {

    46 #ifdef _DEBUG_TRACES_

    47         qDebug() << "Deleting Handler id:" << mapItor.key();

    48 #endif

    49         UniDataModelPluginInterface* handler = mapItor.value();

    50         if (handler)

    51             delete handler;

    52     }

    53     mDataModelPluginMap.clear();

    54 }

    55 

    56 //---------------------------------------------------------------

    57 //UniDataModelLoader::loadPlugins()

    58 //@see header

    59 //---------------------------------------------------------------

    60 void UniDataModelLoader::loadPlugins()

    61 {

    62     // plugins directory setting for EMULATOR

    63 #ifdef __WINS__

    64     QDir dir(QLibraryInfo::location(QLibraryInfo::PluginsPath));

    65     dir.cd("messaging\\datamodel");

    66 #else

    67     // plugins directory setting for HARDWARE IMAGE

    68     QDir dir("Z:\\resource\\qt\\plugins\\messaging\\datamodel");

    69 #endif

    70     QString pluginPath = dir.absolutePath();

    71 #ifdef _DEBUG_TRACES_

    72     qDebug() << "Enter LoadPlugin path = " << pluginPath;

    73 #endif

    74 

    75     // load the plugins

    76     QFileInfoList entries = dir.entryInfoList(QDir::Files | QDir::Readable);

    77     foreach (QFileInfo entry, entries) 

    78         {

    79             QPluginLoader loader(entry.absoluteFilePath());

    80             // Check if plugin is already loaded...

    81             if (!loader.isLoaded())

    82             {

    83                 UniDataModelPluginInterface* datamodelPlugin = qobject_cast<

    84                         UniDataModelPluginInterface*> (loader.instance());

    85                 if (datamodelPlugin)

    86                 {

    87                 	  UniDataModelPluginInterface* pluginInstance = qobject_cast<

    88                         UniDataModelPluginInterface*> (datamodelPlugin->createInstance());                        

    89                     QString mType = pluginInstance->messageType();

    90                     QDEBUG_WRITE_FORMAT("plugin added to map", mType);

    91                     mDataModelPluginMap.insert(mType, pluginInstance);

    92                 }

    93             }

    94 

    95         }

    96 }

    97 

    98 //---------------------------------------------------------------

    99 //UniDataModelLoader::getDataModelPlugin()

   100 //@see header

   101 //---------------------------------------------------------------

   102 UniDataModelPluginInterface* UniDataModelLoader::getDataModelPlugin(

   103                                                                     const QString& messageType)

   104 {

   105     if (mDataModelPluginMap.contains(messageType))

   106     {

   107 		QDEBUG_WRITE_FORMAT("getDataModelPlugin messageType is present ", messageType);

   108         return mDataModelPluginMap[messageType];

   109     }

   110     return NULL;

   111 }