mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbactivetask.cpp
changeset 0 ff3acec5bc43
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mpxplugins/serviceplugins/collectionplugins/mpxsqlitedbcommon/src/mpxdbactivetask.cpp	Thu Dec 17 08:45:05 2009 +0200
@@ -0,0 +1,218 @@
+/*
+* Copyright (c) 2007 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:  Active object to split up long running db tasks
+*
+*/
+
+
+// INCLUDE FILES
+#include <e32base.h>
+#include <mpxlog.h>
+#include "mpxdbactivetask.h"
+
+// ============================ MEMBER FUNCTIONS =============================
+
+// ---------------------------------------------------------------------------
+// Constructor
+// ---------------------------------------------------------------------------
+//
+CMPXDbActiveTask::CMPXDbActiveTask( MMPXDbActiveTaskObserver& aObserver ) :
+    CActive( CActive::EPriorityStandard ),
+    iObserver( aObserver )
+    {
+    MPX_FUNC("CMPXDbActiveTask::CMPXDbActiveTask");
+    CActiveScheduler::Add( this );
+    }
+
+// ---------------------------------------------------------------------------
+// 2nd-phase constructor
+// ---------------------------------------------------------------------------
+//
+void CMPXDbActiveTask::ConstructL()
+    {
+    MPX_FUNC("CMPXDbActiveTask::ConstructL");
+    }
+
+// ---------------------------------------------------------------------------
+// Two-Phase Constructor
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CMPXDbActiveTask* CMPXDbActiveTask::NewL( MMPXDbActiveTaskObserver& aObserver )
+    {
+    MPX_FUNC("CMPXDbActiveTask::NewL");
+
+    CMPXDbActiveTask* self = new(ELeave) CMPXDbActiveTask( aObserver);
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+// Destructor
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CMPXDbActiveTask::~CMPXDbActiveTask()
+    {
+    MPX_FUNC("CMPXDbActiveTask::~CMPXDbActiveTask");
+
+    Cancel();
+    delete iChangeMessages;
+    delete iCurCommand;
+    }
+
+// ---------------------------------------------------------------------------
+// Start the operation
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CMPXDbActiveTask::StartL( TMPXCommandId aTask, const CMPXCommand& aCommand )
+    {
+    delete iCurCommand;
+    iCurCommand = NULL;
+    iCurCommand = CMPXMedia::NewL( aCommand );
+    iCurTask = aTask;
+    iCurStep = 0;
+    delete iChangeMessages;
+    iChangeMessages = NULL;
+    iChangeMessages = CMPXMessageArray::NewL();
+    iCurVisibleChange = ENotVisibile;
+
+    // Start the AO
+    iStatus = KRequestPending;
+    SetActive();
+    TRequestStatus* status = &iStatus;
+    User::RequestComplete( status, KErrNone );
+    }
+
+// ---------------------------------------------------------------------------
+// Get the current step
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CMPXDbActiveTask::GetStep()
+    {
+    MPX_FUNC("CMPXDbActiveTask::GetStep");
+    return iCurStep;
+    }
+
+// ---------------------------------------------------------------------------
+// Get the current task
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TMPXCommandId CMPXDbActiveTask::GetTask()
+    {
+    MPX_FUNC("CMPXDbActiveTask::GetTask");
+    return iCurTask;
+    }
+
+// ---------------------------------------------------------------------------
+// Get the current media
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CMPXMedia& CMPXDbActiveTask::GetCommand()
+    {
+    MPX_FUNC("CMPXDbActiveTask::GetCommand");
+    return *iCurCommand;
+    }
+
+// ---------------------------------------------------------------------------
+// Get the current change messages
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CMPXMessageArray& CMPXDbActiveTask::GetChangeMessages()
+    {
+    MPX_FUNC("CMPXDbActiveTask::GetChangeMessages");
+    return *iChangeMessages;
+    }
+
+// ---------------------------------------------------------------------------
+// Set the visible change flag
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CMPXDbActiveTask::SetVisibleChange( TChangeVisibility aChange )
+    {
+    MPX_FUNC("CMPXDbActiveTask::SetVisibleChange");
+    iCurVisibleChange = aChange;
+    }
+
+// ---------------------------------------------------------------------------
+// Get the visible change flag
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CMPXDbActiveTask::TChangeVisibility CMPXDbActiveTask::GetVisibleChange()
+    {
+    MPX_FUNC("CMPXDbActiveTask::GetVisibleChange");
+    return iCurVisibleChange;
+    }
+
+// ---------------------------------------------------------------------------
+// From CActive
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CMPXDbActiveTask::RunL()
+    {
+    MPX_FUNC("CMPXDbActiveTask::RunL");
+
+    // ETrue is done, EFalse is more to do
+    //
+    if( iObserver.HandleStepL() )
+        {
+        iObserver.HandleOperationCompleted( KErrNone );
+        delete iCurCommand;
+        iCurCommand = NULL;
+        delete iChangeMessages;
+        iChangeMessages = NULL;
+        }
+    else
+        {
+        ++iCurStep;
+        iStatus = KRequestPending;
+        SetActive();
+        TRequestStatus* status = &iStatus;
+        User::RequestComplete( status, KErrNone );
+        }
+    }
+
+// ---------------------------------------------------------------------------
+// From CActive
+// ---------------------------------------------------------------------------
+//
+EXPORT_C void CMPXDbActiveTask::DoCancel()
+    {
+    MPX_FUNC("CMPXDbActiveTask::DoCancel");
+
+    // Callback and cleanup
+    iObserver.HandleOperationCompleted( KErrCancel );
+    delete iCurCommand;
+    iCurCommand = NULL;
+    iChangeMessages->Reset();
+    }
+
+// ---------------------------------------------------------------------------
+// From CActive
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CMPXDbActiveTask::RunError( TInt aError )
+    {
+    MPX_FUNC("CMPXDbActiveTask::RunError");
+
+    // Callback and cleanup
+    iObserver.HandleOperationCompleted( aError );
+    delete iCurCommand;
+    iCurCommand = NULL;
+    iChangeMessages->Reset();
+
+    return KErrNone;
+    }
+
+// END OF FILE