/*

* 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 <e32math.h>

#include <e32debug.h>

#include <S32MEM.H>

#include "common.h"

#include "SearchServerLogger.h"

#include "SearchServerCommon.h"

#include "RSearchServerSession.h"

#include "CSearchDocument.h"

// FUNCTION PROTOTYPES

static TInt StartServer();

static TInt CreateServerProcess();

// RsearchServerSession::RsearchServerSession()

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

EXPORT_C RSearchServerSession::RSearchServerSession(): RSessionBase() 

	{

	// No implementation required

	}

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

// RsearchServerSession::Connect()

// Connects to the server and create a session.

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

EXPORT_C TInt RSearchServerSession::Connect()

	{

	TInt err = StartServer();

	if ( KErrNone == err )

		{

		err = CreateSession(KSearchServerName, Version(), KDefaultMessageSlots);

		}

	return err;

	}

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

// A request to close the session.

// It makes a call to the server, which deletes the object container and object index

// for this session, before calling Close() on the base class.

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

EXPORT_C void RSearchServerSession::Close()

{

	SendReceive(ESearchServerCloseSession);

	RHandleBase::Close();

}

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

// RsearchServerSession::Version()

// Gets the version number.

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

//

EXPORT_C TVersion RSearchServerSession::Version() const

	{

	return (TVersion(KSearchServerMajorVersionNumber, KSearchServerMinorVersionNumber,

			KSearchServerBuildVersionNumber) );

	}

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

// RsearchServerSession::DefineVolumeL()

// Drops a qualified BaseAppClass

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

//

EXPORT_C TInt RSearchServerSession::DefineVolume(const TDesC& aQualifiedBaseAppClass,

												 const TDesC& aIndexDbPath)

	{

	TIpcArgs args(&aQualifiedBaseAppClass, &aIndexDbPath);

	return SendReceive(ESearchServerDatabaseDefine, args);

	}

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

// RsearchServerSession::UnDefineVolumeL()

// Drops a qualified BaseAppClass

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

//

EXPORT_C TInt RSearchServerSession::UnDefineVolume(const TDesC& aQualifiedBaseAppClass)

	{

	TIpcArgs args(&aQualifiedBaseAppClass);

	return SendReceive(ESearchServerDatabaseUnDefine, args);

	}

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

// RsearchServerSession::StopHouseKeeping()

// Stop housekeeping

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

//

EXPORT_C TInt RSearchServerSession::StopHouseKeeping()

    {

    TInt err =  SendReceive(ESearchServerStopHouseKeeping, TIpcArgs());

	return err;

    }

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

// RsearchServerSession::ContinueHouseKeeping()

// Continue housekeeping

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

//

EXPORT_C TInt RSearchServerSession::ContinueHouseKeeping()

    {

    return SendReceive(ESearchServerContinueHouseKeeping, TIpcArgs());

	}

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

// RsearchServerSession::ForceHouseKeeping()

// Force housekeeping

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

//

EXPORT_C TInt RSearchServerSession::ForceHouseKeeping()

    {

    return SendReceive(ESearchServerForceHouseKeeping, TIpcArgs());

	}

//

//

// RSearchServerSubSession

//

//

RSearchServerSubSession::RSearchServerSubSession():

	iEstimatedResultsCountPckg(iEstimatedResultsCount), 

	iDocumentSizePckg(iDocumentSize)

	{

	}

TInt RSearchServerSubSession::Open(RSearchServerSession& aSession)

	{

	return CreateSubSession(aSession, ESearchServerCreateSubSession);

	}

void RSearchServerSubSession::Close()

	{

	RSubSessionBase::CloseSubSession(ESearchServerCloseSubSession);

	}

void RSearchServerSubSession::OpenDatabaseL(const TBool aOpenForSearch, const TDesC& aBaseAppClass, const TDesC& aDefaultSearchField)

	{

	TIpcArgs args(&aBaseAppClass, &aDefaultSearchField, aOpenForSearch);

	User::LeaveIfError( SendReceive(ESearchServerOpenDatabase, args) );

	}

void RSearchServerSubSession::OpenDatabase(const TBool aOpenForSearch, const TDesC& aBaseAppClass, const TDesC& aDefaultSearchField, TRequestStatus& aStatus)

	{

	TIpcArgs args(&aBaseAppClass, &aDefaultSearchField, aOpenForSearch);

	SendReceive(ESearchServerOpenDatabase, args, aStatus);

	}

EXPORT_C void RSearchServerSubSession::SetAnalyzerL(const TDesC& aAnalyzer)

	{

	// Message arguments for the server

	TIpcArgs args(&aAnalyzer);

	// This call completes immediately, however the server will not

	// complete the request until later, so don't pass any local

	// descriptors as they will be out of scope by the time the server

	// attempts to read or write

	User::LeaveIfError( SendReceive(ESearchServerSetAnalyzer, args) ); 

	}

EXPORT_C void RSearchServerSubSession::SetAnalyzer(const TDesC& aAnalyzer, TRequestStatus& aStatus)

	{

	// Message arguments for the server

	TIpcArgs args(&aAnalyzer);

	// This call completes immediately, however the server will not

	// complete the request until later, so don't pass any local

	// descriptors as they will be out of scope by the time the server

	// attempts to read or write

	SendReceive(ESearchServerSetAnalyzer, args, aStatus);

	}

// RSearchServerSubSession::Search()

EXPORT_C void RSearchServerSubSession::SearchL(const TDesC& aSearchTerms)

	{

	PERFORMANCE_LOG_START("RSearchServerSubSession::SearchL");

	iEstimatedResultsCount = 0;

	// Message arguments for the server

	TIpcArgs args(&aSearchTerms, &iEstimatedResultsCountPckg);

	// This call completes immediately, however the server will not

	// complete the request until later, so don't pass any local

	// descriptors as they will be out of scope by the time the server

	// attempts to read or write

	User::LeaveIfError( SendReceive(ESearchServerSearch, args) );

	}

EXPORT_C void RSearchServerSubSession::Search(const TDesC& aSearchTerms, TRequestStatus& aStatus)

	{

	PERFORMANCE_LOG_START("RSearchServerSubSession::SearchL");

	iEstimatedResultsCount = 0;

	// Message arguments for the server

	TIpcArgs args(&aSearchTerms, &iEstimatedResultsCountPckg);

	// This call completes immediately, however the server will not

	// complete the request until later, so don't pass any local

	// descriptors as they will be out of scope by the time the server

	// attempts to read or write

	SendReceive(ESearchServerSearch, args, aStatus);

	}

// RSearchServerSubSession::GetEstimatedDocumentCount()

TInt RSearchServerSubSession::GetEstimatedDocumentCount()

	{

	return iEstimatedResultsCount;

	}

// RSearchServerSubSession::GetDocument()

EXPORT_C CSearchDocument* RSearchServerSubSession::GetDocumentL(TInt aIndex)

	{

	PERFORMANCE_LOG_START("RSearchServerSubSession::GetDocumentL");

	iDocumentSize = 0;

	// Message arguments for the server

	TIpcArgs args(aIndex, &iDocumentSizePckg);

	User::LeaveIfError( SendReceive(ESearchServerGetDocument, args ) );	

	return GetDocumentObjectL(); 

	}

EXPORT_C void RSearchServerSubSession::GetDocument(TInt aIndex, TRequestStatus& aStatus)

	{

	PERFORMANCE_LOG_START("RSearchServerSubSession::GetDocument");

	iDocumentSize = 0;

	// Message arguments for the server

	TIpcArgs args(aIndex, &iDocumentSizePckg);

	SendReceive(ESearchServerGetDocument, args, aStatus );	

	}

EXPORT_C CSearchDocument* RSearchServerSubSession::GetDocumentObjectL()

	{

	PERFORMANCE_LOG_START("CCPixSearcher::GetDocumentObjectL");

	CSearchDocument* document = NULL;

	if (iDocumentSize>0)

		{

		HBufC8* buf = HBufC8::NewLC(iDocumentSize);

		TPtr8 ptr = buf->Des();

		User::LeaveIfError(SendReceive(ESearchServerGetDocumentObject, TIpcArgs(&ptr)));

		RDesReadStream stream;

		stream.Open(ptr);

		stream.PushL();

		document = CSearchDocument::NewLC(stream);

		CleanupStack::Pop(document);

		CleanupStack::PopAndDestroy(&stream);

		CleanupStack::PopAndDestroy(buf);

		}

	return document;

	}

// RSearchServerSubSession::CancelSearch()

// Cancels outstanding search from server

EXPORT_C void RSearchServerSubSession::CancelAll() const

	{

	SendReceive(ESearchServerCancelAll, TIpcArgs());

	}

// Adds the serialized document to the index

EXPORT_C void RSearchServerSubSession::Add(const TDesC8& aSerializedDocument, TRequestStatus& aStatus)

	{

	TIpcArgs args(&aSerializedDocument);	

	SendReceive(ESearchServerAdd, args, aStatus);

	}

// Updates the serialized document in the index

EXPORT_C void RSearchServerSubSession::Update(const TDesC8& aSerializedDocument, TRequestStatus& aStatus)

	{

	TIpcArgs args(&aSerializedDocument);	

	SendReceive(ESearchServerUpdate, args, aStatus);

	}

// Deletes the document uid in the index

EXPORT_C void RSearchServerSubSession::Delete(const TDesC& aDocUid, TRequestStatus& aStatus)

	{

	TIpcArgs args(&aDocUid);	

	SendReceive(ESearchServerDelete, args, aStatus);

	}

// Resets all of the documents in the index

EXPORT_C void RSearchServerSubSession::Reset(TRequestStatus& aStatus)

	{

	SendReceive( ESearchServerReset, aStatus );

	}

// Adds the serialized document to the index

EXPORT_C void RSearchServerSubSession::AddL(const TDesC8& aSerializedDocument)

	{

	TIpcArgs args( &aSerializedDocument );

	User::LeaveIfError( SendReceive(ESearchServerAdd, args) );

	}

// Updates the serialized document in the index

EXPORT_C void RSearchServerSubSession::UpdateL(const TDesC8& aSerializedDocument)

	{

	TIpcArgs args(&aSerializedDocument);

	CPIXLOGSTRING( "RSearchServerSubSession::UpdateL(): sending the request to server" );

	User::LeaveIfError( SendReceive(ESearchServerUpdate, args) );

	CPIXLOGSTRING( "RSearchServerSubSession::UpdateL(): sent the request to server success" );

	}

// Deletes the document uid in the index

EXPORT_C void RSearchServerSubSession::DeleteL(const TDesC& aDocUid)

	{

	TIpcArgs args(&aDocUid);	

	User::LeaveIfError( SendReceive(ESearchServerDelete, args) );

	}

// Resets all of the documents in the index

EXPORT_C void RSearchServerSubSession::ResetL()

	{

	User::LeaveIfError( SendReceive(ESearchServerReset) );

	}

// Issues CPix flush

EXPORT_C void RSearchServerSubSession::FlushL()

    {

    User::LeaveIfError( SendReceive(ESearchServerFlush) );

    }

// Issues CPix flush

EXPORT_C void RSearchServerSubSession::Flush(TRequestStatus& aStatus)

    {

    SendReceive(ESearchServerFlush, aStatus);

    }

// StartServer()

// Starts the server if it is not already running

static TInt StartServer()

	{

	TInt result;

	TFindServer findsearchServer(KSearchServerName);

	TFullName name;

	result = findsearchServer.Next(name);

	if (result == KErrNone)

		{

		// Server already running

		return KErrNone;

		}

	RSemaphore semaphore;

	result = semaphore.CreateGlobal(KSearchServerSemaphoreName, 0);

	if (result != KErrNone)

		{

		return result;

		}

	result = CreateServerProcess();

	if (result != KErrNone)

		{

		return result;

		}

	semaphore.Wait();

	semaphore.Close();

	return KErrNone;

	}

// CreateServerProcess()

// Creates a server process

static TInt CreateServerProcess()

	{

	TInt result;

	const TUidType serverUid( KNullUid, KNullUid, KServerUid3);

	RProcess server;

	result = server.Create(KSearchServerFilename, KNullDesC, serverUid);

	if (result != KErrNone)

		{

		return result;

		}

	server.Resume();

	server.Close();

	return KErrNone;

	}

// End of File