mtpfws/mtpfw/dataproviders/devdp/src/cmtpgetnumobjects.cpp
changeset 0 d0791faffa3f
child 1 f8e15b44d440
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpfws/mtpfw/dataproviders/devdp/src/cmtpgetnumobjects.cpp	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,149 @@
+// Copyright (c) 2006-2009 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 <mtp/tmtptyperequest.h>
+#include <mtp/mmtpdataproviderframework.h>
+#include <mtp/mmtpobjectmgr.h>
+#include <mtp/mmtpdataprovider.h>
+#include <mtp/cmtpdataproviderplugin.h>
+
+#include "cmtpdataprovidercontroller.h"
+#include "cmtpdataprovider.h"
+
+#include "cmtpgetnumobjects.h"
+#include "mtpdevicedpconst.h"
+#include "mtpdevdppanic.h"
+
+/**
+Verification data for GetNumObjects request
+*/
+const TMTPRequestElementInfo KMTPGetNumObjectsPolicy[] = 
+    {
+        {TMTPTypeRequest::ERequestParameter1, EMTPElementTypeStorageId, EMTPElementAttrNone, 1, KMTPStorageAll, 0},
+        {TMTPTypeRequest::ERequestParameter2, EMTPElementTypeFormatCode, EMTPElementAttrNone, 1, 0, 0},
+        {TMTPTypeRequest::ERequestParameter3, EMTPElementTypeObjectHandle, EMTPElementAttrDir, 2, KMTPHandleAll, 0}
+    };
+
+/**
+Two-phase construction method
+@param aPlugin	The data provider plugin
+@param aFramework	The data provider framework
+@param aConnection	The connection from which the request comes
+@return a pointer to the created request processor object
+*/    
+MMTPRequestProcessor* CMTPGetNumObjects::NewL(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection)
+	{
+	CMTPGetNumObjects* self = new (ELeave) CMTPGetNumObjects(aFramework, aConnection);
+	CleanupStack::PushL(self);
+	self->ConstructL();
+	CleanupStack::Pop();
+	return self;
+	}
+
+/**
+Destructor
+*/	
+CMTPGetNumObjects::~CMTPGetNumObjects()
+	{	
+    iSingletons.Close();
+	}
+/**
+Standard c++ constructor
+*/	
+CMTPGetNumObjects::CMTPGetNumObjects(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection) :
+    CMTPRequestProcessor(aFramework, aConnection, sizeof(KMTPGetNumObjectsPolicy)/sizeof(TMTPRequestElementInfo), KMTPGetNumObjectsPolicy)
+	{
+
+	}
+    
+/**
+Second phase constructor.
+*/
+void CMTPGetNumObjects::ConstructL()
+    {
+    iSingletons.OpenL();
+    }
+
+TMTPResponseCode CMTPGetNumObjects::CheckRequestL()
+	{
+	TMTPResponseCode responseCode = CMTPRequestProcessor::CheckRequestL();
+	if(responseCode == EMTPRespCodeOK)
+		{
+		TUint32 formatCode = Request().Uint32(TMTPTypeRequest::ERequestParameter2);
+		if(formatCode != 0 && !IsSupportedFormatL(formatCode))
+			{
+			responseCode = EMTPRespCodeInvalidObjectFormatCode;
+			}
+		}
+	return responseCode;	
+	}
+	
+	
+/**
+GetNumObjects request handler
+*/	
+void CMTPGetNumObjects::ServiceL()
+	{
+	TMTPObjectMgrQueryParams params(Request().Uint32(TMTPTypeRequest::ERequestParameter1), Request().Uint32(TMTPTypeRequest::ERequestParameter2), Request().Uint32(TMTPTypeRequest::ERequestParameter3));
+	TUint32 count = iFramework.ObjectMgr().CountL(params);		
+	SendResponseL(EMTPRespCodeOK, 1, &count);	
+	}
+
+/**
+Check if the format code is supported by the current installed data providers
+*/	
+TBool CMTPGetNumObjects::IsSupportedFormatL(TUint32 aFormatCode)
+	{
+	TBool supported(EFalse);
+		
+	CMTPDataProviderController& dps(iSingletons.DpController());
+	const TInt count(dps.Count());
+	for (TInt i(0); ((i < count) && (!supported)); i++)
+		{						
+		CMTPDataProvider& dp = dps.DataProviderByIndexL(i);
+		if (dp.DataProviderId() != dps.ProxyDpId())
+			{
+			supported = (
+			    dp.Supported(EObjectCaptureFormats, aFormatCode) || 
+			    dp.Supported(EObjectPlaybackFormats, aFormatCode));
+			}			
+		}
+	return supported;	
+	}
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