mtpfws/mtpfw/dataproviders/dputility/src/cmtpsetreferences.cpp
changeset 0 d0791faffa3f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpfws/mtpfw/dataproviders/dputility/src/cmtpsetreferences.cpp	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,126 @@
+// 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/cmtpobjectmetadata.h>
+#include <mtp/cmtptypearray.h>
+#include <mtp/tmtptyperequest.h>
+#include <mtp/mmtpdataproviderframework.h>
+#include <mtp/mmtpobjectmgr.h>
+#include <mtp/mmtpreferencemgr.h>
+#include <mtp/mtpdatatypeconstants.h>
+
+#include "cmtpsetreferences.h"
+#include "mtpdppanic.h"
+
+/**
+Verification data for the SetReferences request
+*/
+const TMTPRequestElementInfo KMTPSetReferencesPolicy[] = 
+    {
+        {TMTPTypeRequest::ERequestParameter1, EMTPElementTypeObjectHandle, EMTPElementAttrNone, 0, 0, 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
+*/    
+EXPORT_C MMTPRequestProcessor* CMTPSetReferences::NewL(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection)
+    {
+    CMTPSetReferences* self = new (ELeave) CMTPSetReferences(aFramework, aConnection);
+    return self;
+    }
+
+/**
+Destructor
+*/    
+EXPORT_C CMTPSetReferences::~CMTPSetReferences()
+    {
+    delete iReferences;
+    }
+
+/**
+Standard c++ constructor
+*/    
+CMTPSetReferences::CMTPSetReferences(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection) :
+    CMTPRequestProcessor(aFramework, aConnection, sizeof(KMTPSetReferencesPolicy)/sizeof(TMTPRequestElementInfo), KMTPSetReferencesPolicy)
+    {
+    
+    }
+
+/**
+SetReferences request handler
+start receiving reference data from the initiator
+*/
+void CMTPSetReferences::ServiceL()
+    {
+    delete iReferences;
+    iReferences = NULL;
+    iReferences = CMTPTypeArray::NewL(EMTPTypeAUINT32);
+    ReceiveDataL(*iReferences);
+    }
+
+/**
+Apply the references to the specified object
+@return EFalse
+*/    
+TBool CMTPSetReferences::DoHandleResponsePhaseL()
+    {
+    if(!VerifyReferenceHandlesL())
+        {
+        SendResponseL(EMTPRespCodeInvalidObjectReference);
+        }
+    else
+        {
+        MMTPReferenceMgr& referenceMgr = iFramework.ReferenceMgr();
+        TUint32 objectHandle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);
+        referenceMgr.SetReferencesL(TMTPTypeUint32(objectHandle), *iReferences);
+        SendResponseL(EMTPRespCodeOK);
+        }
+    return EFalse;    
+    }
+
+TBool CMTPSetReferences::HasDataphase() const
+    {
+    return ETrue;
+    }
+
+/**
+Verify if the references are valid handles to objects
+@return ETrue if all the references are good, otherwise, EFalse
+*/    
+TBool CMTPSetReferences::VerifyReferenceHandlesL() const
+    {
+    __ASSERT_DEBUG(iReferences, User::Invariant());
+    TBool result = ETrue;
+    TInt count = iReferences->NumElements();
+    CMTPObjectMetaData* object(CMTPObjectMetaData::NewLC());
+    MMTPObjectMgr& objectMgr = iFramework.ObjectMgr();
+    for(TInt i = 0; i < count; i++)
+        {
+        TMTPTypeUint32 handle;
+        iReferences->ElementL(i, handle);
+        if(!objectMgr.ObjectL(handle, *object))
+            {
+            result = EFalse;
+            break;
+            }
+        }
+    CleanupStack::PopAndDestroy(object);
+    return result;    
+    }