/*

* 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:  Gets the mime- and resource type using file's name extension

 *

*/

package com.nokia.tools.themeinstaller.odtconverter;

import java.util.Hashtable;

/**

 * Resolves the MimeType and Resource type of the resource to match the file

 * name used in the Symbian side. This class is following the behavior of the

 * Symbian class XnInstallationHandler.cpp in ...Xuikon\UIManager\src\

 *

 * In Symbian, MimeType is TDataType that has TBuf8 and TUid. The constructor

 * taking a descriptor of TDataType is as follows:

 *

 * If descriptor begins with "x-epoc/x-app", identifying data as a native

 * Symbian type, then the associated UID is set to the UID value which is

 * expected to follow the characters "x-epoc/x-app". If no sensible UID can be

 * extracted from the characters following: "x-epoc/x-app", then the associated

 * UID is set to KNullUid.

 *

 * Else Uid is set to KNullDesc and the descriptor is the descriptor given in

 * parameter.

 *

 * In ...Xuikon\UIManager\src\XnInstallationHandler.cpp

 * (ImportCompatibleResourcesL) MimeType is constructed using the Descriptor

 * that is parsed using file's name extension. Descriptors beginning with

 * "x-epoc/x-app" aren't used so TUid part is not implemented. Some of the types

 * are left empty in XnInstallationHandler.cpp. This represented as

 * EMPTY_MIME_TYPE

 *

 * Resource types are defined in Symbian side class XnResource.h

 *

 */

public class MimeTypeResolver

    {

    private static Hashtable iResourceTypeAndMimeType;

    public static final int E_RESOURCE_NONE = 0;

    public static final int E_RESOURCERLB = 1;

    public static final int E_RESOURCEODT = 2;

    public static final int E_RESOURCEDTD = 3;

    public static final int E_RESOURCEXML = 4;

    public static final int E_RESOURCECSS = 5;

    public static final int E_RESOURCEDAT = 6;

    public static final int E_RESOURCERES = 7;

    public static final int E_RESOURCEFBS = 8;

    public static final int E_RESOURCEMBM = 9;

    public static final int E_RESOURCEMIF = 10;

    public static final int E_RESOURCEBMP = 11;

    public static final int E_RESOURCEJPG = 12;

    public static final int E_RESOURCEJPEG = 13;

    public static final int E_RESOURCEPNG = 14;

    public static final int E_RESOURCEGIF = 15;

    public static final int E_RESOURCEAAC = 16;

    public static final int E_RESOURCEWAV = 17;

    public static final int E_RESOURCEMID = 18;

    public static final int E_RESOURCEMP3 = 19;

    public static final int E_RESOURCEM3G = 20;

    public static final int E_RESOURCESVG = 21;

    public static final int E_RESOURCESWF = 22;

    public static final int E_RESOURCEMIME = 23;

    public static final int E_RESOURCETXT = 24;

    public static final String KRLB_FILE_EXTENSION =  ".r";

    public static final String KODT_FILE_EXTENSION =  ".o";

    public static final String KDTD_FILE_EXTENSION =  ".dtd";

    public static final String KXML_FILE_EXTENSION =  ".xml";

    public static final String KCSS_FILE_EXTENSION =  ".css";

    public static final String KDAT_FILE_EXTENSION =  ".dat";

    public static final String KFBS_FILE_EXTENSION =  ".fbs";

    public static final String KMBM_FILE_EXTENSION =  ".mbm";

    public static final String KMIF_FILE_EXTENSION =  ".mif";

    public static final String KBMP_FILE_EXTENSION =  ".bmp";

    public static final String KJPG_FILE_EXTENSION =  ".jpg";

    public static final String KJPEG_FILE_EXTENSION =  ".jpeg";

    public static final String KPNG_FILE_EXTENSION =  ".png";

    public static final String KGIF_FILE_EXTENSION =  ".gif";

    public static final String KAAC_FILE_EXTENSION =  ".aac";

    public static final String KWAV_FILE_EXTENSION =  ".wav";

    public static final String KMID_FILE_EXTENSION =  ".mid";

    public static final String KMP3_FILE_EXTENSION =  ".mp3";

    public static final String KM3G_FILE_EXTENSION =  ".m3g";

    public static final String KSVG_FILE_EXTENSION =  ".svg";

    public static final String KSWF_FILE_EXTENSION =  ".swf";

    public static final String KTXT_FILE_EXTENSION =  ".txt";

    public static final String KAPAAPPTYPEDES = "x-epoc/x-app";

    public static final String TXT_MIME_TYPE = "text/xml";

    public static final String MBM_MIME_TYPE = "image/x-epoc-mbm";

    public static final String EMPTY_MIME_TYPE = "";

    public static final String EMPTY_FILE_EXTENSION = "";

    public static final String WAV_MIME_TYPE = "audio/x-wav";

    public static final String MIDI_MIME_TYPE = "audio/midi";

    public static final String UNKNOWN_MIME_TYPE = "unknown";

    public static final String NAME_EXTENSION_SEPARATOR = ".";

    /**

     * Instantiates a new mimetype resolver.

     */

    public MimeTypeResolver()

        {

        iResourceTypeAndMimeType = new Hashtable();

        iResourceTypeAndMimeType.put( KRLB_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCERLB ) );

        iResourceTypeAndMimeType.put( KODT_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCEODT ) );

        iResourceTypeAndMimeType.put( KDTD_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCEDTD ) );

        iResourceTypeAndMimeType.put( KXML_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCEXML ) );

        iResourceTypeAndMimeType.put( KCSS_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCECSS ) );

        iResourceTypeAndMimeType.put( KDAT_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCEDAT ) );

        iResourceTypeAndMimeType.put( KFBS_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCEFBS ) );

        iResourceTypeAndMimeType.put( KMBM_FILE_EXTENSION, new ResourceTypeAndMimeType( MBM_MIME_TYPE, E_RESOURCEMBM ) );

        iResourceTypeAndMimeType.put( KMIF_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCEMIF ) );

        iResourceTypeAndMimeType.put( KBMP_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCEBMP ) );

        iResourceTypeAndMimeType.put( KJPG_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCEJPG ) );

        iResourceTypeAndMimeType.put( KJPEG_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCEJPEG ) );

        iResourceTypeAndMimeType.put( KPNG_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCEPNG ) );

        iResourceTypeAndMimeType.put( KGIF_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCEGIF ) );

        iResourceTypeAndMimeType.put( KAAC_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCEAAC ) );

        iResourceTypeAndMimeType.put( KWAV_FILE_EXTENSION, new ResourceTypeAndMimeType( WAV_MIME_TYPE, E_RESOURCEWAV ) );

        iResourceTypeAndMimeType.put( KMID_FILE_EXTENSION, new ResourceTypeAndMimeType( MIDI_MIME_TYPE, E_RESOURCEMID ) );

        iResourceTypeAndMimeType.put( KMP3_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCEMP3 ) );

        iResourceTypeAndMimeType.put( KM3G_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCEM3G ) );

        iResourceTypeAndMimeType.put( KSVG_FILE_EXTENSION, new ResourceTypeAndMimeType( UNKNOWN_MIME_TYPE, E_RESOURCESVG ) );

        iResourceTypeAndMimeType.put( KSWF_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCESWF ) );

        iResourceTypeAndMimeType.put( KTXT_FILE_EXTENSION, new ResourceTypeAndMimeType( EMPTY_MIME_TYPE, E_RESOURCETXT ) );

        }

    /**

     * Gets the MimeType.

     *

     * @param aFileName The file name

     *

     * @return The MimeType

     */

    public String getMimeType( String aFileName )

        {

        return getMimeTypeValue( getFileExtension( aFileName ) );

        }

    /**

     * Gets the resource type.

     *

     * @param aFileName The file name

     *

     * @return The Resource type

     */

    public int getResourceType( String aFileName )

        {

        return getResourceTypeValue( getFileExtension( aFileName ) );

        }

    /**

     * Gets the mimetype value.

     *

     * @param aKey The hashtable key is filen name extension

     *

     * @return The mimetype value

     */

    private String getMimeTypeValue( String aKey )

        {

        if ( iResourceTypeAndMimeType.containsKey( aKey ) )

            {

            ResourceTypeAndMimeType rtamt = ( ResourceTypeAndMimeType ) iResourceTypeAndMimeType.get( aKey );

            return rtamt.getMimeType();

            }

        return EMPTY_MIME_TYPE;

        }

    /**

     * Gets the resource type value.

     *

     * @param aKey The hashtable key is file name extension

     *

     * @return The resource type value

     */

    private int getResourceTypeValue( String aKey )

        {

        if ( iResourceTypeAndMimeType.containsKey( aKey ) )

            {

            ResourceTypeAndMimeType rtamt = ( ResourceTypeAndMimeType ) iResourceTypeAndMimeType.get( aKey );

            return rtamt.getResourceType();

            }

        return E_RESOURCE_NONE;

        }

    /**

     * Gets the file extension.

     *

     * @param aFileName The file name

     *

     * @return The file extension

     */

    private String getFileExtension( String aFileName )

        {

        String fileExtension = "";

        if ( aFileName.contains( NAME_EXTENSION_SEPARATOR ) )

            {

            fileExtension = aFileName.substring(

                    aFileName.lastIndexOf( NAME_EXTENSION_SEPARATOR ),

                    aFileName.length() ).toLowerCase();

            return fileExtension;

            }

        return EMPTY_FILE_EXTENSION;

        }

    /**

     * Inner class for containing mimetype - resource type pairs.

     */

    private static class ResourceTypeAndMimeType

        {

        private String iMimeType;

        private int iResourceType;

        /**

         * Instantiates a new resource type and mime type pair.

         *

         * @param aMimeType The mime type

         * @param aResourceType The resource type

         */

        public ResourceTypeAndMimeType( String aMimeType, int aResourceType )

            {

            iMimeType = aMimeType;

            iResourceType = aResourceType;

            }

        /**

         * Gets the mimetype.

         *

         * @return The mimetype

         */

        public String getMimeType()

            {

            return iMimeType;

            }

        /**

         * Gets the resource type.

         *

         * @return The resource type

         */

        public int getResourceType()

            {

            return iResourceType;

            }

        }

    }