/*

* 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:  Installation list for monitoring language variants under install.

 *

*/

package com.nokia.tools.themeinstaller.installationmanager;

import java.util.Vector;

/**

 * Installation list for monitoring language variants under install.

 */

public class InstallationList

    {

    // CONSTANTS

    private static final int NOT_FOUND = -1;

    private static final String EXT_PREFIX = ".o";

    // Languages under install

    private Vector iLanguages;

    /**

     * Constructor.

     */

    public InstallationList()

        {

        iLanguages = new Vector();

        }

    /**

     * Add a language under install.

     * @param aLanguage language id

     */

    public void addInstall( Integer aLanguage )

        {

        iLanguages.add( aLanguage );

        }

    /**

     * Remove a language from list when the installation has completed.

     * @param aODTFileName path and file name of the installed ODT.

     * @return true if a language was removed from the list

     */

    public boolean removeInstall( String aODTFileName )

        {

        // No localized as default

        int languageId = NOT_FOUND;

        int extIndex = NOT_FOUND;

        if( aODTFileName != null )

            {

            extIndex = aODTFileName.lastIndexOf( EXT_PREFIX );

            }

        if( extIndex >= 0 )

            {

            String language = aODTFileName.substring( extIndex + EXT_PREFIX.length() );

            if( language != null &&

               !language.equals( "" ) )

                {

                languageId = Integer.valueOf( language ).intValue();

                }

            }

        return removeInstall( languageId );

        }

    /**

     * Remove a language from list when the installation has completed.

     * @param aLanguage language id

     * @return true if a language was removed from the list

     */

    public boolean removeInstall( int aLanguage )

        {

        boolean result = false;

        int index = findLanguage( aLanguage );

        if( index >= 0 )

            {

            iLanguages.remove( index );

            result = true;

            }

        return result;

        }

    /**

     * Check if there are ongoing installations in the list.

     * @return true if there are installtions in the list

     */

    public boolean installsExist()

        {

        if( iLanguages.size() > 0 )

            {

            return true;

            }

        return false;

        }

    /**

     * Find a language from the list.

     * @param aLanguage language id

     * @return index of the language in the list

     */

    private int findLanguage( int aLanguage )

        {

        int count = iLanguages.size();

        for( int i = 0; i < count; i++ )

            {

            Integer integer = ( Integer ) iLanguages.elementAt( i );

            if( integer.intValue() == aLanguage )

                {

                return i;

                }

            }

        return NOT_FOUND;

        }

    }