// Copyright (c) 2008-2009 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:

#include "tldlistinitializer.h"

#include "tldschema.h"

#include "urilistinterface.h"

#include "tldproperties.h"

using namespace Xml;

CTldListInitializer* CTldListInitializer::NewL ( CUriListInterface& aListInterface )

	{

	CTldListInitializer* self = new ( ELeave ) CTldListInitializer ( aListInterface );

	CleanupStack::PushL ( self );

	self->ConstructL ();

	CleanupStack::Pop ();

	return self;

	}

CTldListInitializer::~CTldListInitializer ()

	{

	iContent.Close ();

	iTldName.Close ();

	iStringPool.Close ();

	delete iTldUriImpl;

	}

CTldListInitializer::CTldListInitializer ( CUriListInterface& aListInterface )

: iListInterface ( aListInterface ),

iParserState ( EInitial )

	{

	}

void CTldListInitializer::ConstructL ()

	{

	const TInt KMaxContentSize = 4 * 1024;

	iContent.CreateL (KMaxContentSize);

	iStringPool.OpenL ( TLDXMLTAGS::Table ); // Open the schema table

	iTldUriImpl = CTldProperties::NewL (InetUriList::EBlackList); // Create an empty object

	}

void CTldListInitializer::ParseDocumentL ( const TDesC& aFile )

	{

	_LIT8( KXmlParserDataType, "text/xml" );

	RFs myFs;

	CleanupClosePushL ( myFs );

	User::LeaveIfError ( myFs.Connect () );

	CParser* myParser = CParser::NewLC ( KXmlParserDataType(), *this );

	ParseL ( *myParser, myFs, aFile );

	CleanupStack::PopAndDestroy ( 2 ); // myParser, myFs

	}

// Virtual functions from MContentHandler

void CTldListInitializer::OnStartDocumentL ( const Xml::RDocumentParameters& /* aDocParam */, TInt aErrorCode )

	{

	User::LeaveIfError ( aErrorCode );

	}

void CTldListInitializer::OnEndDocumentL ( TInt aErrorCode )

	{

	User::LeaveIfError ( aErrorCode );		

	}

void CTldListInitializer::OnStartElementL ( const Xml::RTagInfo& aElement, const Xml::RAttributeArray&  aAttributes, TInt aErrorCode )

	{	

	User::LeaveIfError ( aErrorCode );		

	SetParserState ( ParserStateL( aElement.LocalName() ) );

	SaveTldName(aAttributes); 

	SetTldNameL ( );

	}

void CTldListInitializer::OnEndElementL ( const Xml::RTagInfo& aElement, TInt aErrorCode )

	{

	User::LeaveIfError ( aErrorCode );

	SetParserState ( ParserStateL( aElement.LocalName(), ETrue ) );		

	SetValueL ( KNullDesC8() );

	if ( iParserState == EEndOfListtype )

		{

		// Insert the record and then clear

		iListInterface.InsertTldPolicyDataL( *iTldUriImpl );

		iTldUriImpl->Clear();

		}

	}

void CTldListInitializer::OnContentL ( const TDesC8& aBytes, TInt aErrorCode )

	{

	User::LeaveIfError ( aErrorCode );	

	SetValueL ( aBytes );

	}

void CTldListInitializer::SetParserState ( TParserState aNewState )

	{

	switch ( aNewState )

		{

		case EInitial:

		iParserState = EInitial;

		break;

		case EStartOfPolicyData:

		__ASSERT_DEBUG ( iParserState == EInitial, User::Invariant() );

		iParserState = aNewState;

		break;

		case EEndOfPolicyData:

		__ASSERT_DEBUG ( iParserState == EEndOfTLD, User::Invariant() );

		iParserState = aNewState;

		break;

		case EStartOfTLD:

		__ASSERT_DEBUG ( (iParserState == EStartOfPolicyData) || (iParserState == EEndOfTLD ), User::Invariant() );

		iParserState = aNewState;				

		break;

		case EEndOfTLD:

		__ASSERT_DEBUG ( iParserState == EEndOfListtype, User::Invariant() );

		iParserState = aNewState;				

		break;

		case EStartOfListtype:

		__ASSERT_DEBUG ( (iParserState ==  EStartOfTLD ) || (iParserState == EEndOfListtype), User::Invariant() );

		iParserState = aNewState;

		break;

		case EEndOfListtype:

		__ASSERT_DEBUG ( iParserState == EStartOfListtype, User::Invariant() );

		iParserState = aNewState;		

		break;

		default:

		// Do nothing

		break;

		}	

	}

CTldListInitializer::TParserState CTldListInitializer::ParserStateL ( const RString& aTag, TBool aEndElement /* =EFalse */ )

	{	

	// Open a RString from the string pool

	RString myTagString = iStringPool.OpenStringL ( aTag.DesC() );

	TInt tblIndex = myTagString.Index ( TLDXMLTAGS::Table );

	TParserState parserState( EInitial );

	switch ( tblIndex )

		{

		case TLDXMLTAGS::EPolicyData:

			{

			parserState = aEndElement ? EEndOfPolicyData : EStartOfPolicyData;

			break;				

			}

		case TLDXMLTAGS::EWhitelist:

		case TLDXMLTAGS::EBlacklist:

			{

			parserState = aEndElement ? EEndOfListtype : EStartOfListtype;

			SetListType ( tblIndex );

			break;				

			}

		case TLDXMLTAGS::ETLD:

			{

			parserState = aEndElement ? EEndOfTLD : EStartOfTLD;

			break;	

			}

		default:

			{

			// Do nothing

			break;

			}

		}	

	myTagString.Close ();

	return parserState;	

	}

void CTldListInitializer::SetListType ( TInt aIndex )

	{

	switch ( aIndex )	

		{

		case TLDXMLTAGS::EWhitelist: 

			{

			iTldUriImpl->SetListType(InetUriList::EWhiteList);

			break;		

			}

		case TLDXMLTAGS::EBlacklist:

			{

			iTldUriImpl->SetListType(InetUriList::EBlackList);

			break;	

			}

		default:

			{

			User::Invariant ();	

			}

		}

	}

void CTldListInitializer::SetTldNameL ( )

	{

	switch ( iParserState )	

		{

		case EStartOfListtype:

			{

			iTldUriImpl->SetTldNameL(iTldName);

			break;

			}

		default:

			{

			//Do Nothing

			break;

			}

		}

	}	

void CTldListInitializer::SetValueL ( const TDesC8& aValue )

	{	

	switch ( iParserState )		

		{

		case EStartOfListtype:

			{

			iContent.Append ( aValue );

			break;	

			}

		case EEndOfListtype:

			{

			if ( iContent.Length() > 0 )

				{

				//Set initialize database(Blobs)

				iTldUriImpl->SetCharacterSetL(iContent);

				iContent.Zero ();

				}

			break;

			}

		default: 

			{

			// do nothing

			break;	

			}

		}

	}

//Store the Tld name for later use

void CTldListInitializer::SaveTldName(const Xml::RAttributeArray&  aAttributes)

	{

	_LIT8( KName, "name" );

	TInt nAttributes = aAttributes.Count();

	for(TInt index(0); index < nAttributes; index++)

		{

		const RAttribute& KAttribute = aAttributes[index];

		const RTagInfo& KNameInfo = KAttribute.Attribute();

		const TDesC8& KLocalName8 = KNameInfo.LocalName().DesC();

		if ( iParserState == EStartOfTLD )

			{

			// Store the TLD name for later use

			__ASSERT_ALWAYS(KLocalName8.CompareF( KName ) == 0, User::Invariant() );

			iTldName.Close();

			break;	

			}

		}

	}