/*

* Copyright (c) 2004 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 Fota Adapter

*

*/

#ifndef __NSMLDMFOTAADAPTER_H__

#define __NSMLDMFOTAADAPTER_H__

//  INCLUDES

#include <e32base.h>

#include <smldmadapter.h>

#include <fotaengine.h>

#include <fotaConst.h>

#include "nsmldmfotaadapterdb.h"

// CONSTANTS

const TInt KNSmlDMFotaResultBufferExpandSize = 64;

const TInt KNSmlDMFotaStreamingTreshold = 4096;

const TInt KNSmlDMFotaNullPkgId = -1;

// final result values

const TInt KNSmlDMFotaUndefinedError = 410;

const TInt KNSmlDMFotaSuccessfullDownload = 202;

const TInt KNSmlDMFotaBadUrl = 502;

// P&S keys defined & owned by FotaServer for OMA DM large object

// sets the OMA DM large object download status

const TUint32 KFotaLrgObjDl = 0x00000005;

// sets the profile id used for OMA DM large object download

const TUint32 KFotaLrgObjProfileId = 0x00000006;

// literals for DDF structure

_LIT8( KNSmlDMFotaNode,                     "FUMO" );

_LIT8( KNSmlDMFotaNodeName,                 "PkgName" );

_LIT8( KNSmlDMFotaNodeVersion,              "PkgVersion" );

_LIT8( KNSmlDMFotaNodeDownload,             "Download" );

_LIT8( KNSmlDMFotaNodeDownloadUrl,          "PkgURL" );

_LIT8( KNSmlDMFotaNodeUpdate,               "Update" );

_LIT8( KNSmlDMFotaNodeUpdateData,           "PkgData" );

_LIT8( KNSmlDMFotaNodeDownloadAndUpdate,    "DownloadAndUpdate" );

_LIT8( KNSmlDMFotaNodeDownloadAndUpdateUrl, "PkgURL" );

_LIT8( KNSmlDMFotaNodeState,                "State" );

// descriptions for DDF nodes

_LIT8( KNSmlDMFotaNodeDescription,

"Placeholder for all firmware management objects" );

_LIT8( KNSmlDMFotaRunTimeNodeDescription,

"Placeholder for a single firmware management object" );

_LIT8( KNSmlDMFotaNodeNameDescription,

"Name of a firmware update package" );

_LIT8( KNSmlDMFotaNodeVersionDescription,

"Version of a firmware update package" );

_LIT8( KNSmlDMFotaNodeDownloadDescription,

"Execution target for firmware update package download" );

_LIT8( KNSmlDMFotaNodeDownloadUrlDescription,

"Url to a location containing binary firmare update package" );

_LIT8( KNSmlDMFotaNodeUpdateDescription,

"Execution target for installing update package to device" );

_LIT8( KNSmlDMFotaNodeUpdateDataDescription,

"Binary data used in installation" );

_LIT8( KNSmlDMFotaNodeDownloadAndUpdateDescription,

"Execution target for downloading firmware update package and installing it" );

_LIT8( KNSmlDMFotaNodeDownloadAndUpdateUrlDescription,

"Url to a location containing binary firmare update package" );

_LIT8( KNSmlDMFotaNodeStateDescription,

"Current state of firmware update" );

// mime types etc

_LIT8( KNSmlDMFotaRunTimeMimeType,

"org.openmobilealliance/1.0/FirmwareUpdateManagementObject" );

_LIT8( KNSmlDMFotaTextPlain,    "text/plain" );

_LIT8( KNSmlDMFotaDDFVersion,   "1.0" ); 

_LIT8( KNSmlDMFotaUpdateMetaType,

"org.openmobilealliance.dm.firmwareupdate.update" );

_LIT8( KNSmlDMFotaDownloadMetaType,

"org.openmobilealliance.dm.firmwareupdate.download" );

_LIT8( KNSmlDMFotaDownloadAndUpdateMetaType,

"org.openmobilealliance.dm.firmwareupdate.downloadandupdate" );

_LIT8( KNSmlDMFotaMetaFormat, "text/plain" );

_LIT8( KNSmlDMFotaRunTimeChildren,

"PkgName/PkgVersion/Download/Update/DownloadAndUpdate/State" );

// uri related

_LIT8( KNSmlDMFotaSeparatorDes, "/" );

_LIT8( KNSmlDMFotaRuntimeMatch, "*FUMO/*" );

_LIT8( KNSmlDMFotaRootMatch,    "*FUMO" );

/**

*  CNSmlDmFotaAdapter, the main adapter class of Fota. Provides methods 

*  to access and modify FUMO objects.

*  

*  @lib nsmldmfotaadapter.lib

*  

*/

class CNSmlDmFotaAdapter : public CSmlDmAdapter

    {

public:

    /**

    * Two-phased constructor.

    * @param aDmCallback A pointer to DM Callback, which is used to 

    * set statuses and results of commands.

    * @return A pointer to the newly created adapter.

    */

    static CNSmlDmFotaAdapter* NewL( MSmlDmCallback* aDmCallback );

    /**

    * Two-phased constructor. Pushes the pointer onto the CleanupStack.

    * @param aDmCallback A pointer to DM Callback, which is used to 

    * set statuses and results of commands.

    * @return A pointer to the newly created adapter.

    */

    static CNSmlDmFotaAdapter* NewLC( MSmlDmCallback* aDmCallback );

    /**

    * Destructor.

    */

    virtual ~CNSmlDmFotaAdapter();

public: 

    // from CSmlDmAdapter

    /**

    * Sets current version of Fota adapter's DDF structure to aDDFVersion.

    * @param aVersion Buffer which on return contains the version.

    */

    void DDFVersionL( CBufBase& aDDFVersion );

    /**

    * Fills the DDF structure of firmware management object using the given 

    * reference as the root of DDF. Also checks if there are any Generic 

    * Alerts to be sent to current remote DM server. If there are, delegates 

    * the alerts to SOS Server using Private API.

    * @param aDDFObject Reference to root DDF node.

    */

    void DDFStructureL( MSmlDmDDFObject& aDDF );

    /**

    * Updates a leaf object in FUMO. Sets ENotFound as status to DM Framework,

    * if aURI and/or aLUID is not valid.

    * @param aURI Uri which spesifies the leaf to be updated in a firmware 

    * object.

    * @param aLUID Identifier used to identify in which firmware object 

    * the leaf should be updated.

    * @param aObject Data used in the update.

    * @param aType Mime type of the data. Ignored in Fota adapter.

    * @param aStatusRef Identifier that is used when setting the completion

    * status to DM Framework.

    */

    void UpdateLeafObjectL( const TDesC8& aURI,

                            const TDesC8& aLUID, 

                            const TDesC8& aObject, 

                            const TDesC8& aType, 

                            TInt aStatusRef );

    /**

    * Deletes a firmware object from Fota DB. If aURI does not point to a 

    * runtime node and/or aLUIDis invalid, ENotFound is set as status for 

    * this command.

    * @param aURI Uri which spesifies a firmware object.

    * @param aLUID Identifier used to identify in which firmware object 

    * should be deleted.

    * @param aStatusRef Identifier that is used when setting the completion 

    * status to DM Framework.

    */

    void DeleteObjectL( const TDesC8& aURI,

                        const TDesC8& aLUID, 

                        const TInt aStatusRef ); 

    /**

    * Fetches a leaf object in FUMO. Sets ENotFound as status to DM Framework,

    * if aURI and/or aLUID is not valid.

    * @param aURI Uri which spesifies the leaf to be fetched.

    * @param aLUID Identifier used to identify from which firmware object the 

    * leaf should be fetched.

    * @param aType Mime type that server wishes to be used in the returned data.

    * Ignored in Fota adapter (but used when setting the result).

    * @param aResultRef Identifier that is used when setting the result 

    * (fetched data) to DM Framework.

    * @param aStatusRef Identifier that is used when setting the completion

    * status to DM Framework.

    */

    void FetchLeafObjectL( const TDesC8& aURI, 

                           const TDesC8& aLUID, 

                           const TDesC8& aType, 

                           const TInt aResultsRef, 

                           const TInt aStatusRef ); 

    /**

    * Forms a list of children of given node (aURI) and sets the list to 

    * DM Framework as result.

    * @param aURI Uri which spesifies the node whose children should be 

    * listed. In Fota this should point to either to the ./FUMO or ./FUMO/<x>.

    * In the first case aPreviousURISegmentList is trusted and the list is 

    * formed entirely based on it. In the latter case, a hard coded list of 

    * run time node's children is returned.

    * @param aLUID Identifier of aURI. Ignored in Fota adapter.

    * @param aPreviousURISegmentList A List of aURI's children formed by 

    * DM Framework.

    * @param aResultRef Identifier that is used when setting the result 

    * (fetched data) to DM Framework.

    * @param aStatusRef Identifier that is used when setting the completion

    * status to DM Framework.

    */

    void ChildURIListL( const TDesC8& aURI, 

                        const TDesC8& aLUID, 

                        const CArrayFix<TSmlDmMappingInfo>& aPreviousURISegmentList, 

                        const TInt aResultsRef, 

                        const TInt aStatusRef );

    /**

    * Adds a firmware object to Fota DB. If aURI does not point to a runtime 

    * node and/or aLUID is invalid, ENotFound is set as status for this 

    * command.

    * @param aURI Uri which spesifies the firmware object.

    * @param aParentLUID Identifier of aURI. If this is a valid ID, then 

    * the object has already been added and EAlreadyExists is set as status 

    * for this command.

    * @param aStatusRef Identifier that is used when setting the completion 

    * status to DM Framework.

    */

    void AddNodeObjectL( const TDesC8& aURI, 

                         const TDesC8& aParentLUID, 

                         const TInt aStatusRef );

    /**

    * This method is used to update PkgData, which is the only large object 

    * data in FUMO. Adapter opens a stream to a data (using Fota Engine) 

    * and sets this stream to aStream after which this method returns. DM Host

    * Server then writes the data to the stream piece by piece and finally 

    * calls StreamCommittedL() when all data is written.

    * @param aURI Uri which spesifies the leaf to be updated in a firmware 

    * object. If this does not point to ./FUMO/<x>/Update/PkgData, ENotFound 

    * is set as status for this command.

    * @param aLUID Identifier used to identify in which firmware object the 

    * data should be updated.

    * @param aStream Pointer to a stream, where the opened stream is set.

    * @param aType Mime type of the data. Ignored in Fota adapter.

    * @param aStatusRef Identifier that is used when setting the completion 

    * status to DM Framework.

    */

    void UpdateLeafObjectL( const TDesC8& aURI,

                            const TDesC8& aLUID, 

                            RWriteStream*& aStream, 

                            const TDesC8& aType, 

                            const TInt aStatusRef );

    /**

    * Fetches the size of leaf object's data in bytes. Sets ENotFound as 

    * status to DM Framework, if aURI and/or aLUID is not valid.

    * @param aURI Uri which spesifies the leaf whose data is measured.

    * @param aLUID Identifier used to identify from which firmware object 

    * the leaf size should be counted.

    * @param aType Mime type that server wishes to be used in the returned 

    * data. Ignored in Fota adapter (but used when setting the result)

    * @param aResultRef Identifier that is used when setting the result 

    * (fetched data) to DM Framework.

    * @param aStatusRef Identifier that is used when setting the completion 

    * status to DM Framework.

    */

    void FetchLeafObjectSizeL( const TDesC8& aURI,

                               const TDesC8& aLUID, 

                               const TDesC8& aType, 

                               const TInt aResultsRef, 

                               const TInt aStatusRef );

    /**

    * Executes command targeting Download, DownloadAndUpdate or Update. In any

    * other case, ENotFound is set as status for this command. Saves all 

    * the data needed when reporting the final result of this command in 

    * the beginning of next DM session, fetches needed data for the command 

    * and delegates the command to Fota Engine.

    * @param aURI Uri which spesifies the target node for the exec command.

    * @param aLUID Identifier used to identify the firmware object where the 

    * target node lies.

    * @param aArgument The argument data of the exec command. In Fota this is 

    * an overloaded feature, and this parameter contains the Correlator of 

    * the exec command.

    * @param aType Mime type of aArgument. Ignored in Fota adapter.

    * @param aStatusRef Identifier that is used when setting the completion 

    * status to DM Framework.

    */

    void ExecuteCommandL( const TDesC8& aURI, 

                          const TDesC8& aLUID,

                          const TDesC8& aArgument, 

                          const TDesC8& aType, 

                          const TInt aStatusRef );

    /**

    * Not supported.

    */

    void ExecuteCommandL( const TDesC8& aURI, 

                          const TDesC8& aLUID, 

                          RWriteStream*& aStream, 

                          const TDesC8& aType, 

                          const TInt aStatusRef );

    /**

    * Not supported.

    */

    void CopyCommandL( const TDesC8& aTargetURI, 

                       const TDesC8& aTargetLUID, 

                       const TDesC8& aSourceURI, 

                       const TDesC8& aSourceLUID, 

                       const TDesC8& aType, 

                       TInt aStatusRef );

    /**

    * Not supported.

    */

    void StartAtomicL();

    /**

    * Not supported.

    */

    void CommitAtomicL();

    /**

    * Not supported.

    */

    void RollbackAtomicL();

    /**

    * Returns whether or not streaming is supported in this adapter. In Fota

    * this method is also used to enquire whether or not a large object 

    * whose size is given in aItemSize fits to disk (OOD check using Fota 

    * Engine), and to acknowledge that Generic Alerts have been successfully 

    * sent. If aItemSize is larger that 0, OOD check feature is executed. If 

    * aItemSize equals KNSmlDMResetGenAlerts, Generic Alerts are marked sent.

    * Otherwise aItemSize is set to a treshold value, which is used by DM 

    * Host Server to determine if streaming should be used (large object) 

    * or not.

    * @param aItemSize If this parameter is larger than zero in the beginning,

    * on return it equals KErrNone if the data fits to disk, and KErrNoMemory 

    * if not. If in the beginning this param equals KNSmlDMResetGenAlerts, 

    * Generic Alerts are marked sent. Otherwise if in the beginning this param

    * is less or equal to zero, on return it equals to the treshold value 

    * mentioned above.

    * @return Whether or not streaming is supported in this adapter 

    * (ETrue always).

    */

    TBool StreamingSupport( TInt& aItemSize );

    /**

    * DM Host Server notifies Fota adapter using this method, when all data 

    * has been written to the stream opened for streaming in UpdateLeafObjectL 

    * targeting PkgData. Fota adapter forwards this notification to Fota 

    * Engine.

    */

    void StreamCommittedL();

    /**

    * Not supported.

    */

    void CompleteOutstandingCmdsL();

private:

    /**

    * Check if fota table exists

    * @param aLUID    ID of the node

    * @return  whether table exists

    */

    TBool TableExistsL(const TDesC8& aLUID) const;

    /**

    * Default constructor.

    * @param aEcomArguments A pointer to MSmlDmCallback which is received 

    * through ECom. The pointer is passed on to base class.

    */

    CNSmlDmFotaAdapter( TAny* aEcomArguments );

    /**

    * Second phase construction.

    */

    void ConstructL();

    /**

    * Fetches the data in firmware object identified by aLUID (object) and 

    * aURI (leaf).

    * @param aURI Identifies the leaf whose data should be fetched.

    * @param aLUID Identifies the FW object in which the leaf object is.

    * @param aObject Reference to CBufBase to which the fetched data is 

    * written.

    * @return Status code according to the success of the fetch.

    */

    CSmlDmAdapter::TError DoFetchObjectL( const TDesC8& aURI, 

                                          const TDesC8& aLUID, 

                                          CBufBase& aObject );

    /**

    * Gets data needed for Update execution from Fota DB and notifies 

    * Fota Engine. Note: this method does not wait for Fota Engine to 

    * execute the command, but immediately returns when Fota Engine has been 

    * notified.

    * @param aLUID The id of the firmware object to which this exec is 

    * targeted.

    * @param aProfile The profile id of the currently running DM session.

    * @return Status code according to the success of the method.

    */

    CSmlDmAdapter::TError DoExecUpdateL( const TNSmlDmFwObjectId aLUID, 

                                         const TSmlProfileId aProfile );

    /**

    * Gets data needed for Download or DownloadAndUpdate execution from 

    * Fota DB and notifies Fota Engine. Note: this method does not wait 

    * for Fota Engine to execute the command, but immediately returns when 

    * Fota Engine has been notified.

    * @param aLUID The id of the firmware object to which this exec is 

    * targeted.

    * @param aProfile The profile id of the currently running DM session.

    * @param aUpdate If set ETrue, executes DownloadAndUpdate. Otherwise 

    * executes Download.

    * @return Status code according to the success of the method.

    */

    CSmlDmAdapter::TError DoExecDownloadL( const TNSmlDmFwObjectId aLUID, 

                                           const TSmlProfileId aProfile,

                                           TBool aUpdate );

    /**

    * Saves all the data needed to save before any exec command and returns 

    * the id of the profile of currently running DM session.

    * @param aURI Management uri, which is the target of the exec command.

    * @param aLUID Identifies the firm3ware object that is the target of the 

    * exec command.

    * @param aCorrelator Correlator received as an argument in the exec 

    * command.

    * @return Profile id of the currently running DM session.

    */

    TSmlProfileId SaveExecInfoL( const TDesC8& aURI, 

                                 const TNSmlDmFwObjectId aLUID,

                                 const TDesC8& aCorrelator );

    /**

    * Fetches profile id and server id of the currently running DM session 

    * using Client API.

    * @param aProfId Reference which on succesful return contains the 

    * profile id.

    * @param aServerId Reference which on successful return contains 

    * the server id.

    */

    void GetServerInfoL( TSmlProfileId& aProfId, HBufC8*& aServerId ) const;

    /**

    * Checks if there are any firmware objects that have empty final results. 

    * If there are, checks if any their final result should be reported to 

    * currently running DM session's remote server using Generic Alert. 

    * I.e. if the remote server is the same as with any of those firmware 

    * object's whose execution's final result has not been reported yet, 

    * uses Private API to generate Generic Alert about them.

    */

    void MakeGenericAlertsL();

    /***

    * Checks existance of predefined node under FUMO and adds it to 

    * DM Tree 

    **/

    void CheckAndAddPredefinedNodeL();

    /***

    * Gets predefined node name to be created under FUMO from cenrep 

    * 

    **/

    void GetPredefinedNodeL(TDes8& aNode);

    /**

    * Sets final result to all those FW objects that are associated with 

    * current DM session's remote server, have been a target to an exec 

    * command and that exec command has been finished. I.e. Generic Alert 

    * has been successfully sent reporting these final results, and is not 

    * needed to be sent anymore in next DM session.

    */

    void MarkGenericAlertsSentL();

    /**

    * Returns correct meta/type acoording to the execution target aURI.

    * @param aURI The target for exec command, e.g. ./FUMO/<X>/Update

    * @return The meta/type

    */

    TPtrC8 GetMetaType( const TDesC8& aURI ) const;

    /**

    * Maps a system wide error code to a TError.

    * @param aError A system wide error code.

    * @return A TError value depending on aError.

    */

    CSmlDmAdapter::TError MapErrorToStatus( TInt aError ) const;

    /**

    * Parses a numeric value from aLUID.

    * @param aLUID A string representation of a signed integer.

    * @return TInt value.

    */