--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/IMPSengine/enginc/impsmessageinterpreterapi.h	Thu Dec 17 08:41:52 2009 +0200
@@ -0,0 +1,123 @@
+/*
+* Copyright (c) 2002 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: 
+* classes for IMPS encoder.
+*
+*/
+
+
+#ifndef MImpsMessageInterpreterApi_H
+#define MImpsMessageInterpreterApi_H
+
+// FORWARD DECLARATIONS
+class MImpsDataAccessor;
+class CBufFlat;
+class MImpsCSPSession;
+
+// CLASS DECLARATION
+
+/**
+*  Abstract Encoder class
+*/
+class MImpsEncoder
+    {
+
+    public:
+
+        /**
+        * Method builds (wb)xml encoded message based on data
+        * included in class aImpsData
+        * @param aImpsData reference to MImpsDataAccessor class.
+        * @param aEncodeBuffer buffer to hold the encoded message,
+        */
+        virtual void EncodeMessageL(
+            MImpsDataAccessor& aImpsData,
+            CBufFlat& aEncodeBuffer ) = 0;
+
+        /**
+        * Destructor
+        */
+        virtual void Destroy() = 0;
+
+        /**
+        * MIME type supported
+        * @return MIME type
+        */
+        virtual TPtrC8 MimeType() = 0;
+
+    };
+
+/**
+*  Abstract Decoder class
+*/
+class MImpsDecoder
+    {
+
+    public: // New functions
+
+        /**
+        * Method decodes (wb)xml message to internal data structures and stores
+        * it in aImpsData
+        * @param aImpsData reference to MImpsDataAccessor class.
+        * @param pointer to aEncodeBuffer buffer to hold the encoded message
+        *        Please note that the buffer ownership is taken.
+        *        It is taken in such way that the aEncodeBuffer will point to
+        *        NULL if the transfer was successful.
+        */
+        virtual void DecodeMessageL(
+            MImpsDataAccessor& aImpsData,
+            HBufC8** aEncodeBuffer ) = 0;
+
+        /**
+        * Method decodes (wb)xml message to internal data structures
+        * in asynchronous manner. The completion of the operation is signaled in
+        * MImpsCSPSession::TransportResponseParsedL() method.
+        * @param aEncodeBuffer buffer to hold the encoded message
+        *        Please note that the buffer ownership is taken!!!
+        * @return operation ID
+        */
+        virtual TInt DecodeMsgAsyncL(
+            HBufC8** aBuffer ) = 0;
+
+        /**
+        * Method to cancel the asynchronous decoding
+        */
+        virtual void CancelDecoding() = 0;
+
+        /**
+        * Destructor
+        */
+        virtual void Destroy() = 0;
+
+    };
+
+/**
+* This creates the actual message decoder instance.
+* This replaces dynamic DLL loading because of
+* static loading is a little bit faster.
+* @return a pointer to the actual C-class instance.
+*/
+IMPORT_C GLDEF_C MImpsDecoder* NewDecoderL( MImpsCSPSession* aCallback );
+
+/**
+* This creates the actual message encoder instance.
+* This replaces dynamic DLL loading because of
+* static loading is a little bit faster.
+* @return a pointer to the actual C-class instance
+*/
+IMPORT_C GLDEF_C MImpsEncoder* NewEncoderL( );
+
+#endif
+
+// End of File