/*

* Copyright (c) 2010 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 FILES

#include <e32svr.h>

#include <S32MEM.H>

#include "CSearchServerSession.h"

#include "CSearchServerSubSession.h"

#include "SearchServerCommon.h"

#include "CSearchServer.h"

#include "SearchServerHelper.h"

#include "Common.h"

#include "SearchServerTesting.h"

#include "SearchServerLogger.h"

#include "cpixidxdb.h" // cpix_IdxDb_undefineVolume

#include "CLogPlayerRecorder.h"

#include "indevicecfg.h"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "csearchserversessionTraces.h"

#endif

// ========================= MEMBER FUNCTIONS ==================================

// -----------------------------------------------------------------------------

// CSearchServerSession::NewL()

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

CSearchServerSession* CSearchServerSession::NewL()

    {

    CSearchServerSession* self = CSearchServerSession::NewLC();

    CleanupStack::Pop(self);

    return self;

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::NewLC()

// Two-phased constructor.

// -----------------------------------------------------------------------------

//

CSearchServerSession* CSearchServerSession::NewLC()

    {

    CSearchServerSession* self = new (ELeave) CSearchServerSession();

    CleanupStack::PushL(self);

    self->ConstructL();

    return self;

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::ConstructL()

// Symbian 2nd phase constructor can leave.

// -----------------------------------------------------------------------------

//

void CSearchServerSession::ConstructL()

    {

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::CSearchServerSession()

// C++ default constructor can NOT contain any code, that might leave.

// -----------------------------------------------------------------------------

//

CSearchServerSession::CSearchServerSession()

    {

        OstTrace0( TRACE_NORMAL, CSEARCHSERVERSESSION_CSEARCHSERVERSESSION, "Creating search server session" );

        CPIXLOGSTRING("Creating search server session");

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::~CSearchServerSession()

// Destructor.

// -----------------------------------------------------------------------------

//

CSearchServerSession::~CSearchServerSession()

    {

        OstTrace0( TRACE_NORMAL, DUP1_CSEARCHSERVERSESSION_CSEARCHSERVERSESSION, "Deleting search server session" );

        CPIXLOGSTRING("Deleting search server session");

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::CreateL()

// Called by client/server framework after session has been successfully created

// -----------------------------------------------------------------------------

//

void CSearchServerSession::CreateL()

    {

    // Create new object index

    iCountersObjectIndex = CObjectIx::NewL();

    // Initialize the object container

    // using the object container index in the server.

    iContainer = ((CSearchServer*) Server())->NewContainerL();

    ((CSearchServer*) Server())->AddSession();

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::SubSessionFromHandle()

// Utility to return the CSearchServerSubSession (subsession) object

// -----------------------------------------------------------------------------

//

CSearchServerSubSession* CSearchServerSession::SubSessionFromHandle(

        const RMessage2& aMessage, TInt aHandle)

    {

    CSearchServerSubSession* subsession =

            (CSearchServerSubSession*) iCountersObjectIndex->At(aHandle);

    if (subsession == NULL)

        {

        PanicClient(aMessage, EBadSubsessionHandle);

        }

    return subsession;

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::ServiceL()

// Service request from client.

// -----------------------------------------------------------------------------

//

void CSearchServerSession::ServiceL(const RMessage2& aMessage)

    {

    // First check for session-relative requests

    switch (aMessage.Function())

        {

        case ESearchServerCreateSubSession:

            {

            NewSubSessionL(aMessage);

            return;

            }

        case ESearchServerCloseSession:

            {

            CloseSession(aMessage);

            return;

            }

        case ESearchServerDatabaseDefine:

            {

            DefineVolumeL(aMessage);

            return;

            }

        case ESearchServerDatabaseUnDefine:

            {

            UnDefineVolumeL(aMessage);

            return;

            }

        case ESearchServerStopHouseKeeping:

            {

            StopHouseKeeping(aMessage);

            return;

            }

        case ESearchServerContinueHouseKeeping:

            {

            ContinueHouseKeeping(aMessage);

            return;

            }

        case ESearchServerForceHouseKeeping:

            {

            ForceHouseKeeping(aMessage);

            return;

            }

            // Don't panic in default case!

        }

    // All other function codes must be subsession relative.

    // We need to find the appropriate server side subsession

    // i.e. the CCountSubSession object. 

    // The handle value is passed as the 4th aregument.

    CSearchServerSubSession* subsession = SubSessionFromHandle(aMessage,

            aMessage.Int3());

    switch (aMessage.Function())

        {

        case ESearchServerInitSubSession:

            aMessage.Complete(KErrNone);

            break;

        case ESearchServerCloseSubSession:

            DeleteCounter(aMessage.Int3());

            aMessage.Complete(KErrNone);

            break;

        case ESearchServerOpenDatabase:

            RECORDED_EXECUTION_BEGIN

            subsession->OpenDatabaseL(aMessage);

            RECORDED_EXECUTION_END("openDatabase")

            break;

        case ESearchServerSetAnalyzer:

            RECORDED_EXECUTION_BEGIN

            subsession->SetAnalyzerL(aMessage);

            RECORDED_EXECUTION_END("setAnalyzer")

            break;

        case ESearchServerSetQueryParser:

            RECORDED_EXECUTION_BEGIN

            subsession->SetQueryParserL(aMessage);

            RECORDED_EXECUTION_END("setQueryParser")

            break;

        case ESearchServerSearch:

            RECORDED_EXECUTION_BEGIN

            subsession->SearchL(aMessage);

            RECORDED_EXECUTION_END("search");

            break;

        case ESearchServerGetDocument:

            RECORDED_EXECUTION_BEGIN

            subsession->GetDocumentL(aMessage);

            RECORDED_EXECUTION_END("getDocument")

            break;

        case ESearchServerGetDocumentObject:

            RECORDED_EXECUTION_BEGIN

            subsession->GetDocumentObjectL(aMessage);

            RECORDED_EXECUTION_END("getDocumentObject")

            break;

        case ESearchServerGetBatchDocument:

            RECORDED_EXECUTION_BEGIN

            subsession->GetBatchDocumentL(aMessage);

            RECORDED_EXECUTION_END("getDocument")

            break;

        case ESearchServerGetBatchDocumentObject:

            RECORDED_EXECUTION_BEGIN

            subsession->GetBatchDocumentObjectL(aMessage);

            RECORDED_EXECUTION_END("getDocumentObject")

            break;

        case ESearchServerCancelAll:

            RECORDED_EXECUTION_BEGIN

            subsession->CancelAll(aMessage);

            RECORDED_EXECUTION_END("cancelAll")

            break;

        case ESearchServerAdd:

            RECORDED_EXECUTION_BEGIN

            subsession->AddL(aMessage);

            RECORDED_EXECUTION_END("add")

            break;

        case ESearchServerUpdate:

            RECORDED_EXECUTION_BEGIN

            subsession->UpdateL(aMessage);

            RECORDED_EXECUTION_END("update")

            break;

        case ESearchServerDelete:

            RECORDED_EXECUTION_BEGIN

            subsession->DeleteL(aMessage);

            RECORDED_EXECUTION_END("delete")

            break;

        case ESearchServerReset:

            RECORDED_EXECUTION_BEGIN

            subsession->ResetL(aMessage);

            RECORDED_EXECUTION_END("reset")

            break;

        case ESearchServerFlush:

            RECORDED_EXECUTION_BEGIN

            subsession->FlushL(aMessage);

            RECORDED_EXECUTION_END("flush")

            break;

        default:

            {

            PanicClient(aMessage, EBadRequest);

            aMessage.Complete(KErrNone);

            }

        }

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::NewSubSessionL()

// Creates new subsession

// -----------------------------------------------------------------------------

//

void CSearchServerSession::NewSubSessionL(const RMessage2& aMessage)

    {

    // make a new counter object

    CSearchServerSubSession* subsession = CSearchServerSubSession::NewL(this);

    // add the CCountSubSession object to 

    // this subsession's object container

    // to gererate a unique id

    iContainer->AddL(subsession);

    // Add the object to object index; this returns

    // a unique handle so that we can find the object

    // again laterit later.

    TInt handle = iCountersObjectIndex->AddL(subsession);

    // Write the handle value back to the client.

    // NB It's not obvious but the handle value must be passed

    // back as the 4th parameter (i.e. parameter number 3 on

    // a scale of 0 to 3). 

    // The arguments that are passed across are actually

    // set up by RSubSessionBase::DoCreateSubSession().

    // If you pass your own arguments into a call

    // to RSubSessionBase::CreateSubSession(), which calls DoCreateSubSession, 

    // then only the first three are picked up - the 4th is reserved for the

    // the subsession handle.

    TPckgBuf<TInt> handlePckg(handle);

    TRAPD(res,aMessage.WriteL(3,handlePckg));

    if (res != KErrNone)

        {

        iCountersObjectIndex->Remove(handle);

        PanicClient(aMessage, EBadDescriptor);

        return;

        }

    // We now have another "resource"

    iResourceCount++;

    // Complete the request

    aMessage.Complete(KErrNone);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::CloseSession()

// Called by client/server framework to close a session

// -----------------------------------------------------------------------------

//

void CSearchServerSession::CloseSession(const RMessage2& aMessage)

    {

    ((CSearchServer*) Server())->RemoveSession();

    // Deletes the object index.

    if (iCountersObjectIndex)

        {

        delete iCountersObjectIndex;

        iCountersObjectIndex = NULL;

        }

    ((CSearchServer*) Server())->RemoveContainer(iContainer);

    // Complete the request

    aMessage.Complete(KErrNone);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::DefineVolumeL()

// Defines a specific volume, with an optional path

// -----------------------------------------------------------------------------

//

void CSearchServerSession::DefineVolumeL(const RMessage2& aMessage)

    {

    HBufC* qBaseAppClass = HBufC::NewLC(aMessage.GetDesLength(0));

    TPtr qBaseAppClassPtr = qBaseAppClass->Des();

    aMessage.ReadL(0, qBaseAppClassPtr);

    HBufC* path = HBufC::NewLC(aMessage.GetDesLength(1));

    TPtr pathPtr = path->Des();

    aMessage.ReadL(1, pathPtr);

    DefineVolumeL(*qBaseAppClass, *path);

    CleanupStack::PopAndDestroy(path);

    CleanupStack::PopAndDestroy(qBaseAppClass);

    // Complete the request

    aMessage.Complete(KErrNone);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::DefineVolumeL()

// Defines a specific volume, with an optional path

// -----------------------------------------------------------------------------

//

void CSearchServerSession::DefineVolumeL(const TDesC& aQualifiedBaseAppClass,

        const TDesC& aIndexDbPath)

    {

    LOG_PLAYER_RECORD( CLogPlayerRecorder::LogDefineVolumeL(aQualifiedBaseAppClass, aIndexDbPath) );

    HBufC8* qualBaseAppClass = HBufC8::NewLC(aQualifiedBaseAppClass.Size()

            + 1);

    TPtr8 qualBaseAppClassPtr = qualBaseAppClass->Des();

    qualBaseAppClassPtr.Copy(aQualifiedBaseAppClass);

    HBufC8* path = HBufC8::NewLC(aIndexDbPath.Size() + 1);

    TPtr8 pathPtr = path->Des();

    pathPtr.Copy(aIndexDbPath);

    cpix_Result result;

    cpix_IdxDb_defineVolume(&result,

            reinterpret_cast<const char*> (qualBaseAppClassPtr.PtrZ()),

            reinterpret_cast<const char*> (pathPtr.PtrZ()));

    SearchServerHelper::CheckCpixErrorL(&result, KErrCannotDefineVolume);

    CleanupStack::PopAndDestroy(path);

    CleanupStack::PopAndDestroy(qualBaseAppClass);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::UnDefineVolumeL()

// Undefines a specific volume.

// -----------------------------------------------------------------------------

//

void CSearchServerSession::UnDefineVolumeL(const RMessage2& aMessage)

    {

    HBufC* qBaseAppClass = HBufC::NewLC(aMessage.GetDesLength(0));

    TPtr qBaseAppClassPtr = qBaseAppClass->Des();

    aMessage.ReadL(0, qBaseAppClassPtr);

    UnDefineVolumeL(*qBaseAppClass);

    CleanupStack::PopAndDestroy(qBaseAppClass);

    // Complete the request

    aMessage.Complete(KErrNone);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::StopHouseKeeping()

// Stop housekeeping

// -----------------------------------------------------------------------------

//

void CSearchServerSession::StopHouseKeeping(const RMessage2& aMessage)

    {

    CServer2* server = const_cast<CServer2*>( Server() );

    static_cast<CSearchServer*>( server )->StopHouseKeeping();

    // Complete the request

    aMessage.Complete(KErrNone);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::ContinueHouseKeeping()

// Continue housekeeping

// -----------------------------------------------------------------------------

//

void CSearchServerSession::ContinueHouseKeeping(const RMessage2& aMessage)

    {

    CServer2* server = const_cast<CServer2*>( Server() );

    static_cast<CSearchServer*>( server )->ContinueHouseKeeping();

    // Complete the request

    aMessage.Complete(KErrNone);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::ForceHouseKeeping()

// Force housekeeping

// -----------------------------------------------------------------------------

//

void CSearchServerSession::ForceHouseKeeping(const RMessage2& aMessage)

    {

    CServer2* server = const_cast<CServer2*>( Server() );

    static_cast<CSearchServer*>( server )->ForceHouseKeeping();

    // Complete the request

    aMessage.Complete(KErrNone);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::UnDefineVolumeL()

// Undefines a specific volume.

// -----------------------------------------------------------------------------

//

void CSearchServerSession::UnDefineVolumeL(const TDesC& aBaseAppClass)

    {

    HBufC8* baseAppClass = HBufC8::NewLC(aBaseAppClass.Size() + 1);

    TPtr8 baseAppClassPtr = baseAppClass->Des();

    baseAppClassPtr.Copy(aBaseAppClass);

    cpix_IdxDb_undefineVolume(

            reinterpret_cast<const char*> (baseAppClassPtr.PtrZ()));

    CleanupStack::PopAndDestroy(baseAppClass);

    }

// -----------------------------------------------------------------------------

// CSearchServerSession::NewSubSessionL()

// Delete the subsession object through its handle

// -----------------------------------------------------------------------------

//

void CSearchServerSession::DeleteCounter(TInt aHandle)

    {

    // This will delete the CCountSubSession object; the object is

    // reference counted, and removing the handle causes the object to be closed

    // [closing reduces the access count - the object is deleted if the access

    //  count reaches zero etc].

    iCountersObjectIndex->Remove(aHandle);

    // decrement resource count

    iResourceCount--;

    }

// Utility function to panic client

void CSearchServerSession::PanicClient(const RMessage2& aMessage, TInt aPanic) const