/*

* 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:  This class stores parser components

 *

*/

package com.nokia.tools.themeinstaller.odtconverter;

import java.io.IOException;

import java.util.Vector;

/**

 * This class stores parser components and calls components parse method.

 */

public class ParserComposite extends ParseOperation

                                implements IParseOperationListener

    {

    /** Vector for parsing operations */

    Vector iParseOperations = new Vector();

    /** Vector element index */

    private int iIndex = 0;

    /**

     * Instantiates a new ParserComposite.

     */

    public ParserComposite()

        {

        }

    /**

     * Adds parsers to ParserComposite.

     *

     * @param ParseOperation

     */

    public void addOperation( ParseOperation aParseOperation )

        {

        iParseOperations.addElement( aParseOperation );

        aParseOperation.addListener( this );

        }

    /**

     * If parse operation was successful, calls next until all available files

     * are parsed

     */

    public void parseOperationCompleted( int aErr, String aReason )

        {

        ParseOperation oper;

        if( aErr == OPERATION_SUCCESSFUL )

            {

            // get DOM document from previous parse operation

            oper = ( ParseOperation )iParseOperations.elementAt( iIndex++ );

            iDOMDocument = oper.getDOMDocument();

            if( iIndex < iParseOperations.size() )

                {

                oper =

                     ( ParseOperation )iParseOperations.elementAt( iIndex );

                try

                    {

                    oper.iDOMDocument = iDOMDocument;

                    oper.parse( );

                    }

                catch ( IOException e )

                    {

                    operationCompleted( SYNTAX_ERROR, e.getMessage() );

                    }

                catch ( ODTException e )

                    {

                    operationCompleted( SYNTAX_ERROR, e.getMessage() );

                    }

                }

            else

                {

                operationCompleted( OPERATION_SUCCESSFUL, null );

                }

            }

        else

            {

            operationCompleted( aErr, aReason );

            }

        }

    /* (non-Javadoc)

     * @see com.nokia.tools.themeinstaller.odtconverter.ParseOperation#parse()

     */

    public void parse( )

            throws IOException, ODTException

        {

        iIndex = 0;

        if( !iParseOperations.isEmpty() )

            {

            ParseOperation oper =

                       ( ParseOperation )iParseOperations.elementAt( iIndex );

            oper.parse( );

            }

        else

            {

            return;

            }

        }

    }