mtpdataproviders/mtppictbridgedp/src/cmtppictbridgedpgetobject.cpp
changeset 0 d0791faffa3f
child 47 63cf70d3ecd8
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mtpdataproviders/mtppictbridgedp/src/cmtppictbridgedpgetobject.cpp	Tue Feb 02 01:11:40 2010 +0200
@@ -0,0 +1,138 @@
+// Copyright (c) 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 <f32file.h>
+
+#include <mtp/cmtptypefile.h>
+#include <mtp/cmtpobjectmetadata.h>
+#include <mtp/mmtpdataproviderframework.h>
+#include <mtp/mmtpobjectmgr.h>
+#include <mtp/mmtpstoragemgr.h>
+#include <mtp/mtpprotocolconstants.h>
+#include <mtp/tmtptyperequest.h>
+#include "cmtppictbridgedpgetobject.h"
+#include "cmtppictbridgeprinter.h"
+#include "mtppictbridgedppanic.h"
+#include "cmtprequestchecker.h"
+#include "cptpserver.h"
+
+/**
+Verification data for the GetNumObjects request
+*/
+const TMTPRequestElementInfo KMTPGetObjectPolicy[] = 
+    {
+        {TMTPTypeRequest::ERequestParameter1, EMTPElementTypeObjectHandle, EMTPElementAttrFile, 0, 0, 0}
+    };
+
+//=============================================================================
+//
+//=============================================================================
+MMTPRequestProcessor* CMTPPictBridgeDpGetObject::NewL(
+	MMTPDataProviderFramework& aFramework,
+	MMTPConnection& aConnection,
+	CMTPPictBridgeDataProvider& aDataProvider)
+    {       
+    CMTPPictBridgeDpGetObject* self = new (ELeave) CMTPPictBridgeDpGetObject(aFramework, aConnection, aDataProvider);
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);         
+    return self;
+    }
+
+/**
+Destructor
+*/  
+CMTPPictBridgeDpGetObject::~CMTPPictBridgeDpGetObject()
+    {   
+    __FLOG(_L8("~CMTPPictBridgeDpGetObject"));          
+    delete iFileObject;
+    __FLOG_CLOSE;
+    }
+    
+/**
+Standard c++ constructor
+*/  
+CMTPPictBridgeDpGetObject::CMTPPictBridgeDpGetObject(
+	MMTPDataProviderFramework& aFramework,
+	MMTPConnection& aConnection,
+	CMTPPictBridgeDataProvider& aDataProvider): 
+    CMTPRequestProcessor(aFramework, aConnection, sizeof(KMTPGetObjectPolicy)/sizeof(TMTPRequestElementInfo), KMTPGetObjectPolicy),
+    iPictBridgeDP(aDataProvider),
+    iError(EMTPRespCodeOK)
+    {    
+    }
+
+/**
+Second-phase constructor.
+*/        
+void CMTPPictBridgeDpGetObject::ConstructL()
+    {
+    __FLOG_OPEN(KMTPSubsystem, KComponent);
+    }
+
+/**
+GetObject request handler
+*/      
+void CMTPPictBridgeDpGetObject::ServiceL()
+    {
+    __FLOG(_L8(">> CMTPPictBridgeDpGetObject::ServiceL"));        
+    __ASSERT_DEBUG(iRequestChecker, Panic(EMTPPictBridgeDpRequestCheckNull));
+    TUint32 objectHandle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);
+    //does not take ownership
+    CMTPObjectMetaData* objectInfo = iRequestChecker->GetObjectInfo(objectHandle);
+    if (!objectInfo)
+        {
+        __FLOG_VA((_L8(">> CMTPPictBridgeDpGetObject::ServiceL no object info for objectHandle %d"), objectHandle));
+        // The object handle has already been checked, so an invalid handle can
+        // only occur if it was invalidated during a context switch between
+        // the validation time and now.
+        iError = EMTPRespCodeInvalidObjectHandle;
+        iPictBridgeDP.PtpServer()->Printer()->DpsFileSent(KErrBadHandle);
+        }
+    else
+        {
+        BuildFileObjectL(objectInfo->DesC(CMTPObjectMetaData::ESuid));
+        SendDataL(*iFileObject);
+        iPictBridgeDP.PtpServer()->Printer()->DpsFileSent(KErrNone);
+        }
+    __FLOG(_L8("<< CMTPPictBridgeDpGetObject::ServiceL"));
+    }
+
+//=============================================================================
+//
+//=============================================================================
+void CMTPPictBridgeDpGetObject::BuildFileObjectL(const TDesC& aFileName)
+    {
+    __FLOG(_L8(">> CMTPPictBridgeDpGetObject::BuildFileObjectL"));            
+    delete iFileObject;
+    iFileObject = NULL;
+    iFileObject = CMTPTypeFile::NewL(iFramework.Fs(), aFileName, EFileRead);
+    __FLOG(_L8("<< CMTPPictBridgeDpGetObject::BuildFileObjectL"));            
+    }
+    
+
+//=============================================================================
+//
+//=============================================================================
+TBool CMTPPictBridgeDpGetObject::DoHandleResponsePhaseL()
+    {
+    __FLOG(_L8(">> CMTPPictBridgeDpGetObject::DoHandleResponsePhaseL"));            
+    TMTPResponseCode responseCode = (iCancelled ? EMTPRespCodeIncompleteTransfer : iError);
+    SendResponseL(responseCode);
+    __FLOG(_L8("<< CMTPPictBridgeDpGetObject::DoHandleResponsePhaseL"));
+    return EFalse;
+    }
+