--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/syncmlfw/dm/treemodule/inc/nsmldmcommandbuffer.h	Thu Dec 17 09:07:52 2009 +0200
@@ -0,0 +1,302 @@
+/*
+* Copyright (c) 2005 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:  DM tree etc.
+*
+*/
+
+
+#ifndef __NSMLDMCOMMANDBUFFER_H
+#define __NSMLDMCOMMANDBUFFER_H
+
+#include <e32std.h>
+#include <e32base.h>
+#include <smldmadapter.h>
+#include <nsmldmtreedbclient.h>
+#include "nsmldmtreedtd.h"
+
+class MNSmlDmModuleCallBack;
+class CNSmlDmModule;
+class CNSmlDmLinkCallback;
+class CNSmlDmDDF;
+
+_LIT8(KNSmlDmProperty, "?prop=" );
+
+// ===========================================================================
+// Commands
+// ===========================================================================
+/**
+* Container class for a DM command buffering.
+* This class is instantiated for each command
+* inside the atomic. The elements are in linked list
+*
+*  @since 
+*/
+class CNSmlDmCommands : public CBase
+	{
+	
+	public:
+	/**
+	* Pointer to next elelmnt
+	*/
+	CNSmlDmCommands *iNext;
+	
+	/**
+	* URI of the command
+	*/
+	HBufC8* iURI;
+	
+	/**
+	* Target URI of the command in case of copy
+	*/
+	HBufC8* iTargetURI;
+
+	/**
+	* Mime type of the item
+	*/
+	HBufC8* iType;
+
+	/**
+	* Data of the item in case of add, replace or execute
+	*/
+	HBufC8* iObject;
+
+	/**
+	* Type of command (Add,Get,...)
+	*/
+	TNSmlDmCmdType iCmdType;
+
+	/**
+	* Reference to status element
+	*/
+	TInt iStatusRef;
+
+	/**
+	* Reference to result element
+	*/
+	TInt iResultsRef;
+
+	/**
+	* Status code
+	*/
+	TInt iStatusCode;
+
+	/**
+	* Result
+	*/
+	CBufBase* iResult;
+	
+	/**
+	* Format
+	*/
+	HBufC8* iFormat;
+
+	/**
+	* Indicates that the status is got to current command
+	*/
+	TBool iGotStatus;
+
+	/**
+	* Pointer to callback
+	*/
+	CNSmlDmLinkCallback *iCallback;
+
+	public:
+	
+	/**
+	* Constructor
+	*/
+	CNSmlDmCommands();
+
+	/**
+	* Destructor
+	*/
+	virtual ~CNSmlDmCommands();
+	};
+
+
+// ===========================================================================
+// CNSmlDmCommandBuffer
+// ===========================================================================
+/**
+* Class for handling bufered commands inside the atomic
+*
+*  @since 
+*/
+class CNSmlDmCommandBuffer : public CBase
+	{
+	public:
+
+	/**
+	* Two-phased constructor.
+	* @return						Pointer to newly created module instance
+	*/
+	static CNSmlDmCommandBuffer* NewL(CNSmlDmModule& aDmModule); 
+
+	/**
+	* Destructor
+	*/
+	virtual ~CNSmlDmCommandBuffer();
+	
+
+	/**
+	* Add operation in DM protocoll for buffering
+	* @param	aURI			Target URI in command
+	* @param	aObject			Data
+	* @param	aType			Mime type
+	* @param	aStatusRef		Reference to status element
+	*/
+	void AddObjectL(const TDesC8& aURI, const TDesC8& aObject,
+		const TDesC8& aType, TInt aStatusRef );
+		
+	/**
+	* Replace operation in DM protocoll for buffering
+	* @param	aURI			Target URI in command
+	* @param	aObject			Data
+	* @param	aType			Mime type
+	* @param	aStatusRef		Reference to status element
+	*							or not
+	*/
+	void UpdateObjectL( const TDesC8& aURI, const TDesC8& aObject,
+		const TDesC8& aType, TInt aStatusRef);
+
+	/**
+	* Delete operation in DM protocoll for buffering
+	* @param	aURI			Target URI in command
+	* @param	aStatusRef		Reference to status element
+	*/
+	void DeleteObjectL(const TDesC8& aURI, TInt aStatusRef );
+	
+	/**
+	* Get operation in DM protocoll for buffering
+	* @param	aURI			Target URI in command
+	* @param	aType			Mime type
+	* @param	aResultsRef		Reference to result element
+	* @param	aStatusRef		Reference to status element
+	*/
+	void FetchObjectL(const TDesC8& aURI, const TDesC8& aType,
+		TInt aResultsRef, TInt aStatusRef );
+		
+	/**
+	* Execute operation in DM protocoll for buffering
+	* @param	aURI			Target URI in command
+	* @param	aObject			Data
+	* @param	aType			Mime type
+	* @param	aStatusRef		Reference to status element
+	*/
+	void ExecuteObjectL( const TDesC8& aURI, const TDesC8& aObject,
+		const TDesC8& aType, TInt aStatusRef);
+		
+	/**
+	* Copy operation in DM protocoll for buffering
+	* @param	aTargetURI		Target URI in command
+	* @param	aSourceURI		Source URI in command
+	* @param	aType			Mime type
+	* @param	aStatusRef		Reference to status element
+	*/
+	void CopyObjectL( const TDesC8& aTargetURI,const TDesC8& aSourceURI,
+		const TDesC8& aType, TInt aStatusRef);
+		
+
+	/**
+	* Commits the atomic, i.e. executed the commands in the buffer
+	* @param	aDDF		Reference to DDF module
+	*/
+	void CommitL( CNSmlDmDDF& aDDF);
+
+	/**
+	* Rollbacks the atomic, i.e. rollbacks the commands in the buffer
+	* @param	aDDF		Reference to DDF module
+	*/
+	void RollBackL(CNSmlDmDDF& aDDF);
+	
+	/**
+	* Check if this command has came inside atomic
+	* @param	aStatusRef		Reference to status element
+	* @return					ETrue if status ref is found from buffer
+	*/
+	TBool CheckStatusRef(TInt aStatusRef);
+
+	/**
+	* Check if this command has came inside atomic
+	* @param	aResultRef		Reference to result element
+	* @return					ETrue if resultref is found from buffer
+	*/
+	TBool CheckResultsRef(TInt aResultsRef);
+
+	/**
+	* Sets the status of command pointed by aStatusRef
+	* @param	aStatusRef		Reference to status element
+	* @param	aStatusCode		Status code to be set
+	*/
+	void SetStatus(TInt aStatusRef, TInt aStatusCode);
+	
+	/**
+	* Sets the result of command pointed by aResultRef
+	* @param	aResultRef		Reference to result element
+	* @param	aObject			Result data to be set
+	* @param	aType			Mime type of the object
+	* @param	aFormat			Format of the node
+	*/
+	void SetResultsL(TInt aResultsRef, const CBufBase& aObject,
+		const TDesC8& aType, const TDesC8& aFormat );
+	
+	/**
+	* check    whether the atomic command is with Get
+	* @param	 None
+	* @return	ETrue if the atomic command is with Get or else EFalse
+	*/	
+	TBool IsGetWithAtomic();
+	
+	private:
+	
+	/**
+	* Sends the statuses and results to caller from the command buffer.
+	*/
+	void SendStatusAndResultCodesL();
+
+	/**
+	* Check if parent node is deleted because of failure in atomic
+	* @param	aURI		URI of the node
+	* @return				ETrue if parent of node is deleted 
+	*/
+	TBool ParentNodeDeletedL(const TDesC8& aURI);
+
+	/**
+	* Constructor
+	* @param	aDmModule		Reference to caller
+	*/
+	CNSmlDmCommandBuffer(CNSmlDmModule& aDmModule);
+
+	/**
+	* Atomic failure checking
+	* @return	ETrue if some command failed or status missing 
+	*/
+	TBool AtomicFailed();
+
+	/**
+	* Change statuses to correct atomic statuses.
+	*/
+	void ChangeAtomicStatuses();
+
+	private:
+	CNSmlDmModule& iDmModule;
+	CNSmlDmCommands* iCommandBuffer;
+	TBool iAtomicFailed;
+	};
+
+
+
+
+
+#endif // __NSMLDMCOMMANDCUFFER_H
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