--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/menufw/hierarchynavigator/hnutilities/src/hnservicehandler.cpp	Thu Dec 17 08:40:49 2009 +0200
@@ -0,0 +1,282 @@
+/*
+* Copyright (c) 2007-2008 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:   ?Description
+*
+*/
+
+
+#include <xmlengdom.h>
+#include <liwservicehandler.h>
+
+#include "hnservicehandler.h"
+#include "hnliwutils.h"
+#include "hnglobals.h"
+#include "hnmdbasekey.h"
+
+// ======== MEMBER FUNCTIONS ========
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+void CHnServiceHandler::ConstructL(
+        const TDesC8& aService, const TDesC8& aInterface,
+        const TDesC8& aCommand,
+        CLiwGenericParamList* aConstructor,
+        CLiwGenericParamList* aServiceCommand )
+    {
+    iServiceName.CreateL( aService );
+    iInterfaceName.CreateL( aInterface );
+    iCommandName.CreateL( aCommand );
+
+    iServiceHandler = CLiwServiceHandler::NewL();
+    iInput = CLiwGenericParamList::NewL();
+
+    iOutputForAS = CLiwGenericParamList::NewL();
+
+    iServiceInterface = NULL;
+    SetServiceInterfaceL( aConstructor );
+
+    // Please note that by setting these two member variables
+    // we take ownership of aConstructor and aServiceCommand.
+    // No leaving functions may be called in ConstructL from
+    // now on.
+    iConstructor = aConstructor;
+    iCommand = aServiceCommand;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CHnServiceHandler* CHnServiceHandler::NewL(
+        const TDesC8& aService, const TDesC8& aInterface,
+        const TDesC8& aCommand, TServiceMode aMode,
+        CLiwGenericParamList* aConstructor,
+        CLiwGenericParamList* aServiceCommand )
+    {
+    CHnServiceHandler* self = CHnServiceHandler::NewLC( aService, aInterface,
+            aCommand, aMode,  aConstructor, aServiceCommand );
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CHnServiceHandler* CHnServiceHandler::NewLC(
+        const TDesC8& aService, const TDesC8& aInterface,
+        const TDesC8& aCommandName, TServiceMode aMode,
+        CLiwGenericParamList* aConstructor,
+        CLiwGenericParamList* aServiceCommand )
+    {
+    CHnServiceHandler* self =  new( ELeave ) CHnServiceHandler( aMode );
+    CleanupStack::PushL( self );
+    self->ConstructL( aService, aInterface, aCommandName, aConstructor,
+            aServiceCommand );
+    return self;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+CHnServiceHandler::CHnServiceHandler( TServiceMode aMode ) :
+        iMode( aMode )
+    {
+
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+EXPORT_C CHnServiceHandler::~CHnServiceHandler()
+    {
+
+    iServiceName.Close();
+    iInterfaceName.Close();
+    iCommandName.Close();
+
+    if ( iServiceInterface )
+        {
+        iServiceInterface->Close();
+        }
+
+    delete iInput;
+    delete iConstructor;
+    delete iCommand;
+    delete iOutputForAS;
+    
+    if ( iServiceHandler )
+        {
+        iServiceHandler->Reset();
+        delete iServiceHandler;
+        }
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CHnServiceHandler::ExecuteL( MLiwNotifyCallback* aCallback,
+        TInt aCmdOptions)
+    {
+    TInt err( KErrNotSupported );
+    if( iServiceInterface )
+        {
+        err = KErrNotSupported;
+        iOutputForAS->Reset();
+        iInput->Reset();
+        iInput->AppendL( *iCommand );
+        switch( iMode )
+            {
+            case EServiceModeAsynchronous:
+                {
+                __ASSERT_DEBUG( aCallback , User::Panic( KMatrixPanic , 0 ) );
+                TRAP(err, iServiceInterface->ExecuteCmdL(
+                 iCommandName, *iInput, *iOutputForAS, aCmdOptions, aCallback ) );
+                }
+                break;
+            case EServiceModeSynchronous:
+                {
+                TRAP(err, iServiceInterface->ExecuteCmdL(
+                 iCommandName, *iInput, *iOutputForAS, aCmdOptions, NULL ) );
+                }
+                break;
+            }
+        }
+    return err;
+    }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
+EXPORT_C TInt CHnServiceHandler::ExecuteL(
+        CLiwGenericParamList& aOutParamList, TRequestStatus& aStatus )
+    {
+    iClientStatus = &aStatus;
+    (*iClientStatus) = KRequestPending;
+    iOutputForAO = &aOutParamList;
+
+    TInt err( KErrNotSupported );
+    if( iServiceInterface )
+        {
+        err = KErrNone;
+        iInput->Reset();
+        iInput->AppendL( *iCommand );
+
+        switch (iMode)
+            {
+            case EServiceModeAsynchronous:
+                {
+                TRAP(err, iServiceInterface->ExecuteCmdL(
+                     iCommandName, *iInput, *iOutputForAO, 0, this ) );
+                if ( err != KErrNone )
+                	{
+                	User::RequestComplete( iClientStatus, err );
+                	}
+                }
+                break;
+            case EServiceModeSynchronous:
+                 {
+                 TRAP(err, iServiceInterface->ExecuteCmdL(
+                     iCommandName, *iInput, *iOutputForAO ) );
+                 User::RequestComplete( iClientStatus, KErrNone );
+                 }
+                 break;
+            default:
+                break;
+            }
+        }
+    else
+    	{
+    	// KErrNone ensures that CHnQueryResultCollector::HandleQueryResultsL()
+    	// is called, empty results are added to list, and 
+    	// CHnMdItem::ResultsCollectedL doesn't get confused
+    	User::RequestComplete( iClientStatus, KErrNone );
+    	}
+
+    return err;
+    }
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+EXPORT_C TInt CHnServiceHandler::HandleNotifyL(
+        TInt /*aCmdId*/,
+        TInt /*aEventId*/,
+        CLiwGenericParamList& aEventParamList,
+        const CLiwGenericParamList& /*aInParamList*/ )
+    {
+    // reset
+    if( iOutputForAO )
+        {
+        iOutputForAO->Reset();
+        iOutputForAO->AppendL( aEventParamList );
+        
+        TLiwGenericParam param;
+        TInt error(KErrNone);
+        param.PushL();
+        for (TInt i = 0; i < aEventParamList.Count(); i++)
+            {
+            if ( param.Name().Compare( KErrorCode8 ) == 0
+            		&& param.Value().AsTInt32() == KSErrNoMemory )
+            	{
+            	error = KErrNoMemory;
+            	break;
+            	}
+            }
+        CleanupStack::PopAndDestroy(&param);
+        User::RequestComplete( iClientStatus, error);
+        }
+    return KErrNone;
+    }
+
+
+// -----------------------------------------------------------------------------
+//
+// -----------------------------------------------------------------------------
+TInt CHnServiceHandler::SetServiceInterfaceL(
+        CLiwGenericParamList* aConstructor )
+    {
+    CLiwGenericParamList& inParam = iServiceHandler->InParamListL();
+    CLiwGenericParamList& outParam = iServiceHandler->OutParamListL();
+
+    CLiwCriteriaItem* critItem = CLiwCriteriaItem::NewLC( KLiwCmdAsStr,
+        iInterfaceName, iServiceName );
+
+    critItem->SetServiceClass( TUid::Uid( KLiwClassBase ) );
+    RCriteriaArray critArr;
+    CleanupClosePushL( critArr );
+    critArr.AppendL( critItem );
+    iServiceHandler->AttachL( critArr );
+    inParam.AppendL( *aConstructor );
+    iServiceHandler->ExecuteServiceCmdL( *critItem, inParam, outParam );
+    CleanupStack::PopAndDestroy( &critArr );
+    CleanupStack::PopAndDestroy( critItem );
+
+    TInt pos( KErrNone );
+    outParam.FindFirst( pos, iInterfaceName );
+    if ( pos != KErrNotFound )
+        {
+        iServiceInterface = outParam[pos].Value().AsInterface();
+        }
+
+    return pos;
+    }
+
+// End of file