/*

* Copyright (c) 2008 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:

*

*/

package com.nokia.mj.impl.security.midp.authorization;

import com.nokia.mj.impl.rt.support.Jvm;

/**

 * Utility class to provide full reflection in CLDC. This class is needed

 * when instantiating Permission objects via different constructors with

 * one or two constructor parameters

 */

public final class ClassInstantiator

{

    static

    {

        Jvm.loadSystemLibrary("javasecurity");

    }

    public static Object newInstance(

        String className,

        String constructorParam1,

        String constructorParam2)

    throws InstantiationException

    {

        // need to translate the fully qualified className into a format with

        // "/" instead of "." as package separator

        className = className.replace('.', '/');

        // build up the arguments list

        int argsCount = ((constructorParam1 != null

                          && constructorParam1.length() > 0) ? 1 : 0)

                        + ((constructorParam2 != null

                            && constructorParam2.length() > 0) ? 1 : 0);

        String[] args = new String[argsCount];

        switch (argsCount)

        {

        case 2:

            args[1] = constructorParam2;

        case 1:

            args[0] = constructorParam1;

        }

        return _newInstance(className, args);

    }

    private static native Object _newInstance(String className, String[] args)

    throws InstantiationException;

}