mtpdataproviders/mtppictbridgedp/src/mtppictbridgerequestprocessor.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 01:11:40 +0200
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// Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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/**
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 @file
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 @internalTechnology
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 */
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#include <mtp/tmtptyperequest.h>
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#include "mtppictbridgedpconst.h"
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#include "mtppictbridgedpprocessor.h"
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#include "cmtppictbridgedpgetobject.h"
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#include "cmtppictbridgedpgetobjectinfo.h"
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#include "cmtppictbridgedpsendobjectinfo.h"
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#include "cmtprequestunknown.h"
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#include "cmtpcommonrequestprocessor.h"
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/** 
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Defines a processor factory function pointer
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@internalTechnology
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*/
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typedef MMTPRequestProcessor* (*TMTPPictBridgeRequestProcessorCreateFunc)(
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                                                                MMTPDataProviderFramework& aFramework, 
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                                                                MMTPConnection& aConnection,
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                                                                CMTPPictBridgeDataProvider& aDataProvider);
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/** 
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Defines an entry which maps from operation code to the request processor
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@internalTechnology
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*/
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typedef struct 
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    {
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    TUint16                                  iOperationCode;
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    TMTPPictBridgeRequestProcessorCreateFunc iCreateFunc;
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    }TMTPPictBridgeRequestProcessorEntry;
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template<TMTPResponseCode RESPCODE, TBool HASITORDATA>
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static MMTPRequestProcessor* CommonProcessorCreator(MMTPDataProviderFramework& aFramework, 
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                                                    MMTPConnection& aConnection,
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                                                    CMTPPictBridgeDataProvider& )
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    {
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    return CMTPCommonRequestProcessor::NewL<RESPCODE, HASITORDATA>(aFramework, aConnection);
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    }
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// --------------------------------------------------------------------------
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// A mapping table from the operation code to the request processor factory method
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// --------------------------------------------------------------------------
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//
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static const TMTPPictBridgeRequestProcessorEntry KMTPPictBridgeDpRequestProcessorTable[]=
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    {
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    {EMTPOpCodeGetObjectInfo,           CMTPPictBridgeDpGetObjectInfo::NewL},
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    {EMTPOpCodeGetObject,               CMTPPictBridgeDpGetObject::NewL},
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    {EMTPOpCodeSendObjectInfo,          CMTPPictBridgeDpSendObjectInfo::NewL},
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    {EMTPOpCodeSendObject,              CMTPPictBridgeDpSendObjectInfo::NewL}  
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    };
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// --------------------------------------------------------------------------
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// Create a request processor that matches the request
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// @param aPlugin   The reference to the data provider plugin 
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// @param aFramework The reference to the data provider framework
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// @param aRequest  The request to be processed
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// @param aConnection The connection from which the request comes from
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// @return a pointer to the request processor
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// --------------------------------------------------------------------------
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//
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MMTPRequestProcessor* MTPPictBridgeDpProcessor::CreateL(
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                                                    MMTPDataProviderFramework& aFramework,
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                                                    const TMTPTypeRequest& aRequest, 
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                                                    MMTPConnection& aConnection,
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                                                    CMTPPictBridgeDataProvider& aDataProvider)
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    {
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    TMTPPictBridgeRequestProcessorCreateFunc createFunc = NULL; 
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    TUint16 operationCode = aRequest.Uint16(TMTPTypeRequest::ERequestOperationCode);
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    TInt count = sizeof(KMTPPictBridgeDpRequestProcessorTable) / sizeof(TMTPRequestProcessorEntry);
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    for(TInt i = 0; i < count; i++)
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        {
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        if(KMTPPictBridgeDpRequestProcessorTable[i].iOperationCode == operationCode)
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            {
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            createFunc = KMTPPictBridgeDpRequestProcessorTable[i].iCreateFunc;
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            break;
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            }
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        }
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    if(!createFunc) 
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        {
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        return CMTPRequestUnknown::NewL(aFramework, aConnection);
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        }
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    return (*createFunc)(aFramework, aConnection, aDataProvider);
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    }
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