--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ncdengine/provider/client/src/ncdnodedownloadproxy.cpp	Thu Dec 17 08:51:10 2009 +0200
@@ -0,0 +1,229 @@
+/*
+* Copyright (c) 2006 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:   Contains CNcdNodeDownloadProxy class implementation
+*
+*/
+
+
+#include "ncdnodedownloadproxy.h"
+#include "ncdnodemetadataproxy.h"
+#include "ncdnodeproxy.h"
+#include "ncdoperationimpl.h"
+#include "ncddownloadoperationproxy.h"
+#include "ncdoperationmanagerproxy.h"
+#include "ncdoperationdatatypes.h"
+#include "catalogsclientserver.h"
+#include "ncdnodeidentifier.h"
+#include "ncdnodefunctionids.h"
+#include "ncdnodeclassids.h"
+#include "catalogsinterfaceidentifier.h"
+#include "catalogsutils.h"
+#include "catalogsdebug.h"
+
+
+// ======== PUBLIC MEMBER FUNCTIONS ========
+
+CNcdNodeDownloadProxy::CNcdNodeDownloadProxy(
+    MCatalogsClientServer& aSession,
+    TInt aHandle,
+    CNcdNodeMetadataProxy& aMetadata )
+: CNcdInterfaceBaseProxy( aSession, aHandle, &aMetadata ),
+  iMetadata( aMetadata )
+    {
+    }
+
+
+void CNcdNodeDownloadProxy::ConstructL()
+    {
+    // Register the interface
+    MNcdNodeDownload* interface( this );
+    AddInterfaceL( 
+        CCatalogsInterfaceIdentifier::NewL( interface, this, MNcdNodeDownload::KInterfaceUid ) );
+    
+    InternalizeL();
+    }
+
+
+CNcdNodeDownloadProxy* CNcdNodeDownloadProxy::NewL(
+    MCatalogsClientServer& aSession,
+    TInt aHandle,
+    CNcdNodeMetadataProxy& aMetadata )
+    {
+    CNcdNodeDownloadProxy* self = 
+        CNcdNodeDownloadProxy::NewLC( aSession, aHandle, aMetadata );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+CNcdNodeDownloadProxy* CNcdNodeDownloadProxy::NewLC(
+    MCatalogsClientServer& aSession,
+    TInt aHandle,
+    CNcdNodeMetadataProxy& aMetadata )
+    {
+    CNcdNodeDownloadProxy* self = 
+        new( ELeave ) CNcdNodeDownloadProxy( aSession, aHandle, aMetadata );
+    // Using PushL because the object does not have any references yet
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    return self;
+    }
+
+
+CNcdNodeDownloadProxy::~CNcdNodeDownloadProxy()
+    {
+    DLTRACEIN((""));
+    // Remove interfaces implemented by this class from the interface list.
+    // So, the interface list is up to date when this class object is deleted.
+    RemoveInterface( MNcdNodeDownload::KInterfaceUid );
+    
+    // Delete member variables here
+    // Do not delete node and operation manager because
+    // this object does not own them.
+    }
+
+
+CNcdNodeMetadataProxy& CNcdNodeDownloadProxy::Metadata() const
+    {
+    return iMetadata;
+    }
+
+
+void CNcdNodeDownloadProxy::InternalizeL()
+    {
+    DLTRACEIN((""));
+
+    HBufC8* data( NULL );
+        
+    // Because we do not know the exact size of the data, use
+    // the alloc method, which creates the buffer of the right size
+    // and sets the pointer to point to the created buffer.
+    // Get all the data that is necessary to internalize this object
+    // from the server side.
+    User::LeaveIfError(
+        ClientServerSession().
+        SendSyncAlloc( NcdNodeFunctionIds::ENcdInternalize,
+                       KNullDesC8,
+                       data,
+                       Handle(),
+                       0 ) );
+
+    if ( data == NULL )
+        {
+        DLERROR((""));
+        User::Leave(  KErrNotFound );
+        }
+
+     CleanupStack::PushL( data );
+
+     // Read the data from the stream and insert it to the memeber variables
+     RDesReadStream stream( *data );
+     CleanupClosePushL( stream );
+    
+     InternalizeDataL( stream );
+    
+     // Closes the stream
+     CleanupStack::PopAndDestroy( &stream ); 
+     CleanupStack::PopAndDestroy( data );
+
+    DLTRACEOUT((""));    
+    }
+
+
+// MNcdNodeDownload functions
+
+TBool CNcdNodeDownloadProxy::IsDownloadedL() const
+    {
+    DLTRACEIN((""));
+    if ( !iIsDownloaded )
+        {
+        DLTRACEOUT(("iIsDownloaded == EFalse"));
+        return EFalse;
+        }
+        
+    TInt filesExist = 0;
+    // Internalize so that the server checks whether the files exist or not
+    User::LeaveIfError(
+        ClientServerSession().
+        SendSync( NcdNodeFunctionIds::ENcdFilesExist,
+                       KNullDesC8,
+                       filesExist,
+                       Handle() ) );
+
+    DLTRACEOUT(("isDownloaded status from server: %d", filesExist ));
+    return filesExist;
+    }
+
+
+MNcdDownloadOperation* CNcdNodeDownloadProxy::DownloadContentL( 
+    MNcdDownloadOperationObserver& aObserver )
+    {
+    DLTRACEIN((""));    
+    
+    CNcdDownloadOperationProxy* operation( NULL );
+
+    // What is the data id here? Is KNullDesC ok?
+    operation = 
+        Metadata().Node().
+        OperationManager().
+        CreateDownloadOperationL( ENcdContentDownload, 
+                                  Metadata().Node(),
+                                  KNullDesC, 
+                                  &aObserver );
+
+    // It is enought that the observer is informed
+    // when the file operation is ready. So, no need to add
+    // node or this class object to be observers.
+
+    // No need to increase the operation ref count here because
+    // it should be initially one.
+
+    DLTRACEOUT(("Operation %x", 
+        static_cast<MCatalogsBase*>( operation ) ));    
+        
+    return operation;
+    }
+    
+
+// Other functions
+
+void CNcdNodeDownloadProxy::InternalizeDataL( RReadStream& aStream )
+    {
+    DLTRACEIN((""));
+
+    // Use catalogsutils.h functions to internalize
+    // memebervariables according to the data received
+    // from the server.
+    // Make sure that the variables are set here in the same
+    // order as they are externalized in the server side.
+    // Small mistake here messes up everything!
+
+    // First read the class id. Because, it is the first thing in the stream.
+    TInt classId( aStream.ReadInt32L() );
+    
+    if ( classId != NcdNodeClassIds::ENcdNodeDownloadClassId )
+        {
+        // classId is not recognized
+        DLERROR(("Class id was not recognized!"));
+        // For testing purposes assert here
+        DASSERT( EFalse );
+        
+        // Otherwise leave is adequate
+        User::Leave( KErrCorrupt );
+        }
+
+
+    iIsDownloaded = aStream.ReadInt32L();
+
+    DLTRACEOUT((""));
+    }