/*

* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

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

* which accompanies this distribution, and is available

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

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  

*

*/

#include <piprofiler/EngineUIDs.h>

#include <piprofiler/ProfilerTraces.h>

#include "WriterController.h"

const TInt KMaxWriterPluginCount = 10;

CWriterController* CWriterController::NewL(CProfilerSampleStream& aStream)

    {

    CWriterController* self = new( ELeave ) CWriterController(aStream);

    CleanupStack::PushL( self );

    self->ConstructL( );

    CleanupStack::Pop( self );

    return self;

    }

CWriterController::CWriterController(CProfilerSampleStream& aStream) : 

    iStream(aStream)

    {

    }

void CWriterController::ConstructL()

	{

	// initiate writer plugin list

	}

void CWriterController::InitialiseWriterListL()

    {

    // create new writer plugin array

    iPluginArray = new(ELeave) CArrayPtrFlat<CWriterPluginInterface>( KMaxWriterPluginCount );

    // create new writer plugin loader

    iPluginLoader = CWriterPluginLoader::NewL();

    iPluginLoader->SetObserver( this );

    iPluginLoader->LoadAsyncL( iPluginArray );

    LOGTEXT(_L(" RWriterController::InitialiseWriterList - exit"));	

    }

CWriterController::~CWriterController()

    {

    LOGTEXT(_L("RWriterController::~RWriterController" ));

    if ( iPluginArray )

        {

        // destroy the plugin instances

        // empty loaded plugins from array

        for(TInt i(0);i<iPluginArray->Count();i++)

            {

            if(iPluginArray->At(i))

                {

                delete iPluginArray->At(i);

                iPluginArray->At(i) = NULL;

                }

            }

        iPluginArray->Reset();

        delete iPluginArray;

        iPluginArray = NULL;

        }

    if ( iPluginLoader )

        {

        iPluginLoader->AbortAsyncLoad();

        delete iPluginLoader;

        iPluginLoader = NULL;

        }

    }

void CWriterController::InitialisePluginStream()

	{

	LOGTEXT(_L("RWriterController::InitialisePluginStream - entry"));

	TInt pluginCount(iPluginArray->Count());

	if( iPluginArray && pluginCount > 0 )

	    {

		LOGSTRING2("RWriterController::InitialisePluginStream - plugin count %d, searching through", pluginCount);

	  	for(TInt i=0;i<pluginCount;i++)

	  	    {

  			LOGSTRING2("RWriterController::InitialisePluginStream - getting plugin n:o: %d...", i);

	    	CWriterPluginInterface* plugin = iPluginArray->At(i);

	  		LOGSTRING2("RWriterController::InitialisePluginStream - writer found, 0x%x, initializing stream...", plugin->Id());

    		plugin->SetStream(iStream);

	  		LOGTEXT(_L("RSamplerController::InitialisePluginStream - succeeded!"));

	  	    }

	  	}

	LOGTEXT(_L("RSamplerController::InitialisePluginStream - exit"));

	}

CArrayPtrFlat<CWriterPluginInterface>* CWriterController::GetPluginList()

    {

	return iPluginArray;

    }

void CWriterController::HandlePluginLoaded( KWriterPluginLoaderStatus aStatus )

    {

    switch(aStatus)

        {

        case 0:

            LOGSTRING2("RWriterController - one plugin loaded, status: %d", aStatus);

            break;

        case 1:

            LOGSTRING2("RWriterController - a plugin load failed: %d", aStatus);

            break;

        case 2:

            LOGSTRING2("RWriterController - plugin loading aborted: %d", aStatus);

            break;

        case 3:

            LOGSTRING2("RWriterController - all plugins loaded: %d", aStatus);

            // set stream after all loaded writer plugins

            InitialisePluginStream();

            break;

        case 4:

            LOGSTRING2("RWriterController - error in loading plugins: %d", aStatus);

            break;

        default:

            break;

        }

    }

TUid CWriterController::GetPluginUID(TInt traceId)

    {

	LOGSTRING2(" RWriterController::GetPluginUID - checking UID for traceId = %d",traceId);	

	// this part has to be changed for each new writer

    if( iPluginArray && iPluginArray->Count() > 0 )

        {

        for(TInt i=0;i<iPluginArray->Count();i++)

            {

            CWriterPluginInterface* plugin = iPluginArray->At(i); 

            if(plugin->Id().iUid == traceId)

                {

                LOGSTRING2(" RWriterController::GetPluginUID - got: 0x%X",plugin->Id());	

                return plugin->Id();

                }

            }

        }	

	return KWriterNoneSelected;

    }

CWriterPluginInterface* CWriterController::GetActiveWriter()

    {

    CWriterPluginInterface* plugin = NULL;

    TInt count(iPluginArray->Count());

    if( iPluginArray && count > 0 )

        {

        for(TInt i=0;i<count;i++)

            {

            plugin = iPluginArray->At(i); 

            if(plugin->GetEnabled())

                {

                return plugin;

                }

            }

        }

    return (CWriterPluginInterface*)0;

    }

TUint32 CWriterController::GetWriterType(TUint32 writerId)

    {

    TUid id;

    id = this->GetPluginUID(writerId);

    if(id != KWriterNoneSelected)

        return GetPlugin(id)->GetWriterType();

    else

        return 0;

    }

CWriterPluginInterface* CWriterController::GetPlugin(TUid aUid)

    {

    if( iPluginArray && iPluginArray->Count() > 0 )

        {

        for(TInt i=0;i<iPluginArray->Count();i++)

            {

            CWriterPluginInterface* plugin = iPluginArray->At(i); 

            // check if searched uid found

            if(plugin->Id().iUid == aUid.iUid)

                {

                // return pointer to found plugin

                return plugin;

                }

            }

        }

    // return null plugin

	return (CWriterPluginInterface*)0;

    }

TInt CWriterController::StartSelectedPlugin()

	{

	LOGTEXT(_L("RWriterController::StartSelectedPlugin - entry"));

    CWriterPluginInterface* plugin = GetActiveWriter();

    if(plugin)

        {

        return plugin->Start();

		}

	LOGTEXT(_L("RWriterController::StartSelectedPlugin - exit"));

	return KErrNotFound;

	}

void CWriterController::StopSelectedPlugin()

	{

	LOGTEXT(_L("RWriterController::StopSelectedPlugin - entry"));

    CWriterPluginInterface* plugin = GetActiveWriter();

	if(plugin)

		{

		plugin->Stop();

		}

	LOGTEXT(_L("RWriterController::StopSelectedPlugin - exit"));

	}

/** Set selected plugin active **/

void CWriterController::SetPluginActive(TUid uid, const TWriterPluginValueKeys aKey)

    {

	CWriterPluginInterface* plugin = NULL;

	_LIT(KDummy, "");

	TBuf<1> buf;

	buf.Append(KDummy);

	for(TInt i(0);i<iPluginArray->Count();i++)

	    {

	    plugin = iPluginArray->At(i);

	    if(plugin->Id().iUid == uid.iUid)

	        {

	        plugin->SetValue(aKey, buf);

	        }

	    else

	        {

	        plugin->SetValue(EWriterPluginDisabled, buf);

	        }

	    }

    }

TInt CWriterController::SetPluginSettings(TUid aUid, TDes& aDes)

    {

	LOGSTRING2(" CWriterController::SetPluginSettings, traceId = 0x%X", aUid.iUid);	

	GetPlugin(aUid)->SetValue(EWriterPluginSettings, aDes);

	return KErrNone;

    }

/** Get settings for a specific plugin **/

void CWriterController::GetPluginSettings(TUid uid, TDes& aVal)

    {

	GetPlugin(uid)->GetValue(EWriterPluginSettings, aVal);

    }

// end of file