/*
 * This library is part of OpenCms -
 * the Open Source Content Mananagement System
 *
 * Copyright (C) 2002 - 2005 Alkacon Software (http://www.alkacon.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * For further information about Alkacon Software, please see the
 * company website: http://www.alkacon.com
 *
 * For further information about OpenCms, please see the
 * project website: http://www.opencms.org
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

package de.metamesh.opencms.imageops;

import org.opencms.configuration.CmsConfigurationException;
import org.opencms.file.types.A_CmsResourceType;
import org.opencms.file.types.Messages;
import org.opencms.main.OpenCms;

/**
 * Resource type descriptor for the type "image".<p>
 *
 * @author Alexander Kandzior (a.kandzior@alkacon.com)
 * 
 */
public class CmsResourceTypeImage extends A_CmsResourceType {

    /** The type id of this resource type. */
    public static final int RESOURCE_TYPE_ID = 3;

    /** The name of this resource type. */
    public static final String RESOURCE_TYPE_NAME = "image";

    /** Indicates that the static configuration of the resource type has been frozen. */
    private static boolean m_staticFrozen;

    /** The static type id of this resource type. */
    private static int m_staticTypeId;

    public CmsResourceTypeImage() {
      super();
      m_typeId = RESOURCE_TYPE_ID;
      m_typeName = RESOURCE_TYPE_NAME;
    }
    
    /**
     * Returns the static type id of this (default) resource type.<p>
     * 
     * @return the static type id of this (default) resource type
     */
    public static int getStaticTypeId() {

        return m_staticTypeId;
    }

    /**
     * Returns the static type name of this (default) resource type.<p>
     * 
     * @return the static type name of this (default) resource type
     */
    public static String getStaticTypeName() {

        return RESOURCE_TYPE_NAME;
    }
    /**
     * @see org.opencms.file.types.I_CmsResourceType#getLoaderId()
     */
    public int getLoaderId() {

        return ImageLoader.C_RESOURCE_LOADER_ID;
    }


    /**
     * @see org.opencms.file.types.A_CmsResourceType#initConfiguration(java.lang.String, java.lang.String)
     */
    public void initConfiguration(String name, String id) throws CmsConfigurationException {

        if ((OpenCms.getRunLevel() > OpenCms.RUNLEVEL_2_INITIALIZING) && m_staticFrozen) {
            // configuration already frozen
            throw new CmsConfigurationException(Messages.get().container(
                Messages.ERR_CONFIG_FROZEN_3,
                this.getClass().getName(),
                getStaticTypeName(),
                new Integer(getStaticTypeId())));
        }

        if (!RESOURCE_TYPE_NAME.equals(name)) {
            // default resource type MUST have default name
            throw new CmsConfigurationException(Messages.get().container(
                Messages.ERR_INVALID_RESTYPE_CONFIG_NAME_3,
                this.getClass().getName(),
                RESOURCE_TYPE_NAME,
                name));
        }


        // freeze the configuration
        m_staticFrozen = true;

        super.initConfiguration(RESOURCE_TYPE_NAME, id);
        // set static members with values from the configuration        
        m_staticTypeId = m_typeId;
        
        // it is necessary to initialize the old resource type class 
        // because some opencms classes use it to get the static type id.
        new org.opencms.file.types.CmsResourceTypeImage().initConfiguration(name, id);
    }
}