sysstatemgmt/systemstatemgr/cmd/src/ssmcommandbase.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 00:53:00 +0200
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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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#include "ssmcommandbase.h"
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#include "ssmpanic.h"
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#include "ssmdebug.h"
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#include <ssm/ssmconditionalcallback.h>
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CSsmCommandBase::CSsmCommandBase()
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	:CActive(EPriorityStandard), iSeverity(ECmdIgnoreFailure)
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#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE
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	, iPriority(KDefaultCommandPriority)
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#endif
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	{
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	CActiveScheduler::Add(this);
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	}
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CSsmCommandBase::CSsmCommandBase(TCmdErrorSeverity aSeverity)
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	: CActive(EPriorityStandard), iSeverity(aSeverity)
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#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE
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	, iPriority (KDefaultCommandPriority)
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#endif
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	{
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	CActiveScheduler::Add(this);
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	}
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#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE
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CSsmCommandBase::CSsmCommandBase(TCmdErrorSeverity aSeverity, const TUint16 aPriority)
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	: CActive(EPriorityStandard), iSeverity(aSeverity), iPriority(aPriority)
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	{
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	CActiveScheduler::Add(this);
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	}
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#endif
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/**
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*/
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CSsmCommandBase::~CSsmCommandBase()
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	{
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#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE
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	iCmdResourceFileName.Close();
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#endif
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	}
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void CSsmCommandBase::SetUtilProvider(CSsmCommandUtilProvider& aUtilProvider)
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	{
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	iUtilProvider = &aUtilProvider;
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	}
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TBool CSsmCommandBase::IsDeferred() const
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	{
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	return EFalse;
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	}
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TSsmExecutionBehaviour CSsmCommandBase::ExecutionBehaviour() const
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	{
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	return ESsmWaitForSignal;
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	}
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TCmdErrorSeverity CSsmCommandBase::Severity() const
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	{
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	return iSeverity;
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	}
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#ifdef SYMBIAN_SSM_FLEXIBLE_MERGE
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TUint16 CSsmCommandBase::Priority() const
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	{
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	return iPriority;
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	}
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void CSsmCommandBase::SetCommandResourceFileNameL(const TDesC& aFileName)
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	{
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	if (iCmdResourceFileName.MaxLength() < aFileName.Length())
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		{
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		iCmdResourceFileName.ReAllocL(aFileName.Length());		
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		}
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	iCmdResourceFileName.Copy(aFileName);
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	}
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const TDesC& CSsmCommandBase::GetCommandResourceFileName() const
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	{
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	return iCmdResourceFileName;
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	}
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TInt CSsmCommandBase::GetCommandResourceFileNameLength() const
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	{
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	return iCmdResourceFileName.Length();
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	}
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#endif
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TInt CSsmCommandBase::CompletionStatus() const
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	{
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	__ASSERT_ALWAYS(0, PanicNow(KPanicSsmCommand, EIllegalMethodCallInClass));
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	return KErrNotSupported;
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	}
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void CSsmCommandBase::RegisterCompletionObserver(TRequestStatus& /*aStatus*/)
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	{
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	__ASSERT_ALWAYS(0, PanicNow(KPanicSsmCommand, EIllegalMethodCallInClass));
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	}
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   113
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void CSsmCommandBase::RegisterCompletionObserverCancel()
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	{
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	__ASSERT_ALWAYS(0, PanicNow(KPanicSsmCommand, EIllegalMethodCallInClass));
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	}
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void CSsmCommandBase::CompleteExecuteRequest(TInt aReason)
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	{
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	if (iExecuteRequest && (iExecuteRequest->Int() == KRequestPending))
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		{
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		DEBUGVERBOSE3A("Severity %d Errorcode %d", Severity(), aReason);
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		if (Severity()==ECmdIgnoreFailure && aReason!=KErrCancel)
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			{
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			aReason = KErrNone;
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			}
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		CompleteRequest(*iExecuteRequest, aReason);
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		}
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	iExecuteRequest = NULL;
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	}
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void CSsmCommandBase::CompleteRequest(TRequestStatus& aStatus, TInt aReason)
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	{
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	DEBUGPRINT2A("Completing command with errorcode %d", aReason);
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	TRequestStatus* status = &aStatus;
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	User::RequestComplete(status, aReason);
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	}
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TBool CSsmCommandBase::EvaluateCondition(MSsmConditionalCallback* aCallback, CResourceFile* aResourceFile)
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	{
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	if(aCallback && aResourceFile && iConditionalResourceId)
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		{
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		// All the information is available to perform a condition evaluation
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		TBool response = ETrue;
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		TRAPD(err, response = aCallback->ConditionalCommandAllowedL(*aResourceFile, iConditionalResourceId));
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		if(err != KErrNone)
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			{
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			// Failed to get any response information, so don't execute this command
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			response = EFalse;
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			}
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		return response;
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		}
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	// Otherwise return true as conditional information has not been specified
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	// If the conditional information isn't set then a command defaults to being
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	// unconditional so therefore should always return ETrue in that situation.
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	//
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	// If no callback is provided or if no resource file is specified then
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	// this command has not been created from a resource file so therefore
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	// all commands are treated as unconditional, so again ETrue is returned.
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	return ETrue;
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	}
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void CSsmCommandBase::SetConditionalInformation(TInt aConditionalInformation)
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	{
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	iConditionalResourceId = aConditionalInformation;
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	}
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TInt CSsmCommandBase::ConditionalInformation() const
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	{
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	return iConditionalResourceId;
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	}