mtpfws/mtpfw/dataproviders/proxydp/src/cmtpdeleteobject.cpp
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     1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
       
     2 // All rights reserved.
       
     3 // This component and the accompanying materials are made available
       
     4 // under the terms of "Eclipse Public License v1.0"
       
     5 // which accompanies this distribution, and is available
       
     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     7 //
       
     8 // Initial Contributors:
       
     9 // Nokia Corporation - initial contribution.
       
    10 //
       
    11 // Contributors:
       
    12 //
       
    13 // Description:
       
    14 //
       
    15 
       
    16 #include <mtp/cmtpobjectmetadata.h>
       
    17 #include <mtp/cmtpstoragemetadata.h>
       
    18 #include <mtp/mmtpdataproviderframework.h>
       
    19 #include <mtp/mtpprotocolconstants.h>
       
    20 #include <mtp/tmtptyperequest.h>
       
    21 #include <mtp/cmtptypearray.h>
       
    22 
       
    23 #include "cmtpdataprovider.h"
       
    24 #include "cmtpdataprovidercontroller.h"
       
    25 #include "cmtpdeleteobject.h"
       
    26 #include "cmtpobjectmgr.h"
       
    27 #include "cmtpparserrouter.h"
       
    28 #include "cmtpstoragemgr.h"
       
    29 #include "mtpproxydppanic.h"
       
    30 #include "rmtpframework.h"
       
    31 #include "cmtpobjectbrowser.h"
       
    32 #include "mtpdppanic.h"
       
    33 
       
    34 __FLOG_STMT( _LIT8( KComponent,"PrxyDelObj" ); )
       
    35 const TUint KInvalidDpId = 0xFF;
       
    36 
       
    37 /**
       
    38 Two-phase construction method
       
    39 @param aFramework    The data provider framework
       
    40 @param aConnection    The connection from which the request comes
       
    41 @return a pointer to the created request processor object
       
    42 */ 
       
    43 MMTPRequestProcessor* CMTPDeleteObject::NewL(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection)
       
    44     {
       
    45     CMTPDeleteObject* self = new (ELeave) CMTPDeleteObject(aFramework, aConnection);
       
    46     CleanupStack::PushL(self);
       
    47     self->ConstructL();
       
    48     CleanupStack::Pop(self);
       
    49     return self;
       
    50     }
       
    51 
       
    52 /**
       
    53 Destructor
       
    54 */    
       
    55 CMTPDeleteObject::~CMTPDeleteObject()
       
    56     {
       
    57     iSingletons.Close();
       
    58     iTargetDps.Close();
       
    59     iHandles.Close();
       
    60     delete iObjBrowser;
       
    61     
       
    62     __FLOG( _L8("+/-Dtor") );
       
    63     __FLOG_CLOSE;
       
    64     }
       
    65 
       
    66 /**
       
    67 Constructor
       
    68 */    
       
    69 CMTPDeleteObject::CMTPDeleteObject(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection) :
       
    70     CMTPRequestProcessor(aFramework, aConnection, 0, NULL),
       
    71     iDeletedObjectsNumber(0)
       
    72     {
       
    73     __FLOG_OPEN( KMTPSubsystem, KComponent );
       
    74     __FLOG( _L8("+/-Ctor") );
       
    75     }
       
    76     
       
    77 /**
       
    78 Second phase constructor.
       
    79 */
       
    80 void CMTPDeleteObject::ConstructL()
       
    81     {
       
    82     __FLOG( _L8("+ConstructL") );
       
    83     
       
    84     iSingletons.OpenL();
       
    85     iOwnerDp = KInvalidDpId;
       
    86     __FLOG( _L8("-ConstructL") );
       
    87     }
       
    88     
       
    89 /**
       
    90 DeleteObject request handler
       
    91 */ 
       
    92 void CMTPDeleteObject::ServiceL()
       
    93     {
       
    94     __FLOG( _L8("+ServiceL") );
       
    95     iTargetDps.Reset();
       
    96     CMTPParserRouter& router(iSingletons.Router());
       
    97     CMTPParserRouter::TRoutingParameters params(Request(), iConnection);
       
    98     router.ParseOperationRequestL(params);
       
    99     router.RouteOperationRequestL(params, iTargetDps);
       
   100     
       
   101     BrowseHandlesL();
       
   102     
       
   103     __FLOG( _L8("-ServiceL") );
       
   104     }
       
   105 
       
   106 void CMTPDeleteObject::ProxyReceiveDataL(MMTPType& /*aData*/, const TMTPTypeRequest& /*aRequest*/, MMTPConnection& /*aConnection*/, TRequestStatus& /*aStatus*/)
       
   107     {
       
   108     Panic(EMTPWrongRequestPhase);    
       
   109     }
       
   110     
       
   111 void CMTPDeleteObject::ProxySendDataL(const MMTPType& /*aData*/, const TMTPTypeRequest& /*aRequest*/, MMTPConnection& /*aConnection*/, TRequestStatus& /*aStatus*/)
       
   112     {
       
   113     Panic(EMTPWrongRequestPhase);
       
   114     }
       
   115     
       
   116 #ifdef _DEBUG    
       
   117 void CMTPDeleteObject::ProxySendResponseL(const TMTPTypeResponse& aResponse, const TMTPTypeRequest& aRequest, MMTPConnection& aConnection, TRequestStatus& aStatus)
       
   118 #else
       
   119 void CMTPDeleteObject::ProxySendResponseL(const TMTPTypeResponse& aResponse, const TMTPTypeRequest& /*aRequest*/, MMTPConnection& /*aConnection*/, TRequestStatus& aStatus)
       
   120 #endif
       
   121     {
       
   122     __ASSERT_DEBUG(( ( (iRequest == &aRequest) || ( &iCurrentRequest == &aRequest ) ) && (&iConnection == &aConnection)), Panic(EMTPNotSameRequestProxy));
       
   123     MMTPType::CopyL(aResponse, iResponse);
       
   124 	TRequestStatus* status = &aStatus;
       
   125 	User::RequestComplete(status, KErrNone);
       
   126     }
       
   127 
       
   128 #ifdef _DEBUG    
       
   129 void CMTPDeleteObject::ProxyTransactionCompleteL(const TMTPTypeRequest& aRequest, MMTPConnection& aConnection)
       
   130 #else
       
   131 void CMTPDeleteObject::ProxyTransactionCompleteL(const TMTPTypeRequest& /*aRequest*/, MMTPConnection& /*aConnection*/)
       
   132 #endif
       
   133     {
       
   134     __ASSERT_DEBUG(( ( (iRequest == &aRequest) || ( &iCurrentRequest == &aRequest ) ) && (&iConnection == &aConnection)), Panic(EMTPNotSameRequestProxy));
       
   135     TInt err(KErrNone);      
       
   136     TUint16 responseCode = iResponse.Uint16(TMTPTypeResponse::EResponseCode);
       
   137     
       
   138     //Delete one object successfully
       
   139     if (responseCode == EMTPRespCodeOK)
       
   140         {
       
   141         ++iDeletedObjectsNumber;
       
   142         }
       
   143     //if object is write-protected or assocation object is not empty, we continue to schedule the AO to delete the 
       
   144     //following objects. If it is not the 2 cases, just schedule with KErrGeneral so that we can sendresponse directly 
       
   145     //in RunL
       
   146     else if (responseCode != EMTPRespCodeObjectWriteProtected && responseCode != EMTPRespCodeAccessDenied)
       
   147         {
       
   148         err = KErrGeneral;
       
   149         }
       
   150     
       
   151     ++iCurrentHandle;
       
   152     Schedule(err);
       
   153     }
       
   154 
       
   155 void CMTPDeleteObject::RunL()
       
   156     {
       
   157     __FLOG( _L8("+RunL") );
       
   158     
       
   159     if ( iStatus == KErrNone )
       
   160         {
       
   161         NextObjectHandleL();
       
   162         if ( iOwnerDp != KInvalidDpId )
       
   163             {
       
   164             CMTPDataProvider& dp = iSingletons.DpController().DataProviderL( iOwnerDp );
       
   165             dp.ExecuteProxyRequestL( iCurrentRequest, Connection(), *this );
       
   166             }
       
   167         }
       
   168     else
       
   169         {
       
   170         SendResponseL( iResponse.Uint16( TMTPTypeResponse::EResponseCode ) );
       
   171         }
       
   172    
       
   173     __FLOG( _L8("-RunL") );
       
   174     }
       
   175     
       
   176 /**
       
   177 Completes the current asynchronous request with the specified 
       
   178 completion code.
       
   179 @param aError The asynchronous request completion request.
       
   180 */
       
   181 void CMTPDeleteObject::Schedule(TInt aError)
       
   182     {
       
   183     TRequestStatus* status = &iStatus;
       
   184     User::RequestComplete(status, aError);
       
   185     SetActive();
       
   186     }
       
   187 
       
   188 /**
       
   189 Sends a response to the initiator.
       
   190 @param aCode MTP response code
       
   191 */
       
   192 void CMTPDeleteObject::SendResponseL(TUint16 aCode)
       
   193     {
       
   194     const TMTPTypeRequest& req(Request());
       
   195     iResponse.SetUint16(TMTPTypeResponse::EResponseCode, aCode);
       
   196     iResponse.SetUint32(TMTPTypeResponse::EResponseSessionID, req.Uint32(TMTPTypeRequest::ERequestSessionID));
       
   197     iResponse.SetUint32(TMTPTypeResponse::EResponseTransactionID, req.Uint32(TMTPTypeRequest::ERequestTransactionID));
       
   198     iFramework.SendResponseL(iResponse, req, Connection());
       
   199     }
       
   200 
       
   201 void CMTPDeleteObject::BrowseHandlesL()
       
   202     {
       
   203     __FLOG( _L8("+BrowseHandlesL") );
       
   204     
       
   205     delete iObjBrowser;
       
   206     iObjBrowser = NULL;
       
   207     iObjBrowser = CMTPObjectBrowser::NewL( iFramework );
       
   208     
       
   209     iHandles.Reset();
       
   210     iCurrentHandle = 0;
       
   211     iDeletedObjectsNumber = 0;
       
   212     MMTPType::CopyL( Request(), iCurrentRequest );
       
   213     
       
   214     CMTPObjectBrowser::TBrowseCallback callback = { CMTPDeleteObject::OnBrowseObjectL, this };
       
   215     TUint32 handle = Request().Uint32( TMTPTypeRequest::ERequestParameter1 );
       
   216     TUint32 fmtCode = KMTPFormatsAll;
       
   217     if ( KMTPHandleAll == handle )
       
   218     	{
       
   219     	fmtCode= Request().Uint32( TMTPTypeRequest::ERequestParameter2 );
       
   220     	}
       
   221     iObjBrowser->GoL( fmtCode, handle, KMaxTUint32, callback );
       
   222     
       
   223     if ( 0 == iHandles.Count() )
       
   224         {
       
   225         SendResponseL( EMTPRespCodeOK );        
       
   226         }
       
   227     else
       
   228         {
       
   229         Schedule( KErrNone );
       
   230         }
       
   231 
       
   232     __FLOG( _L8("-BrowseHandlesL") );
       
   233     }
       
   234 
       
   235 void CMTPDeleteObject::NextObjectHandleL()
       
   236     {
       
   237     __FLOG( _L8("+NextObjectHandleL") );
       
   238 
       
   239     iOwnerDp = KInvalidDpId;
       
   240     if ( iCurrentHandle < iHandles.Count() )
       
   241         {
       
   242         TUint32 handle = iHandles[iCurrentHandle];
       
   243         iOwnerDp = iSingletons.ObjectMgr().ObjectOwnerId( handle );
       
   244         if ( iOwnerDp == KInvalidDpId )
       
   245             {
       
   246             SendResponseL(EMTPRespCodeInvalidObjectHandle);
       
   247             }
       
   248         else
       
   249             {
       
   250             iCurrentRequest.SetUint32( TMTPTypeRequest::ERequestParameter1, handle );
       
   251             }
       
   252         }
       
   253     else
       
   254         {
       
   255         if (iDeletedObjectsNumber == iHandles.Count())
       
   256             {
       
   257             SendResponseL(EMTPRespCodeOK);
       
   258             }
       
   259         else if (iDeletedObjectsNumber == 0)
       
   260             {
       
   261             SendResponseL(EMTPRespCodeObjectWriteProtected);
       
   262             }
       
   263         else
       
   264             {
       
   265             SendResponseL(EMTPRespCodePartialDeletion);
       
   266             }
       
   267         }
       
   268 
       
   269     __FLOG( _L8("-NextObjectHandleL") );
       
   270     }
       
   271 
       
   272 void CMTPDeleteObject::OnBrowseObjectL( TAny* aSelf, TUint aHandle, TUint32 /*aCurDepth*/ )
       
   273     {
       
   274     CMTPDeleteObject* self = reinterpret_cast< CMTPDeleteObject* >( aSelf );
       
   275     if ( self->iTargetDps.Find(self->iSingletons.ObjectMgr().ObjectOwnerId(aHandle)) != KErrNotFound )
       
   276         {
       
   277         self->iHandles.AppendL( aHandle );
       
   278         }
       
   279     }
       
   280