SquirrelJME/SquirrelJME

// -*- Mode: Java; indent-tabs-mode: t; tab-width: 4 -*-
// ---------------------------------------------------------------------------
// SquirrelJME
//     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
// ---------------------------------------------------------------------------
// SquirrelJME is under the GNU General Public License v3+, or later.
// See license.mkd for licensing and copyright information.
// ---------------------------------------------------------------------------

package com.nttdocomo.ui;

import cc.squirreljme.jvm.launch.IModeApplication;
import cc.squirreljme.jvm.mle.DebugShelf;
import cc.squirreljme.jvm.mle.constants.VerboseDebugFlag;
import cc.squirreljme.runtime.cldc.annotation.SquirrelJMEVendorApi;
import cc.squirreljme.runtime.cldc.debug.Debugging;
import cc.squirreljme.runtime.midlet.ApplicationHandler;
import cc.squirreljme.runtime.midlet.ApplicationInterface;
import cc.squirreljme.runtime.midlet.ApplicationType;
import cc.squirreljme.runtime.midlet.CleanupHandler;
import java.util.Objects;

/**
 * Handles i-appli and i-mode applications for launching.
 *
 * @since 2021/11/30
 */
@SquirrelJMEVendorApi
final class __IAppliInterface__
    implements ApplicationInterface<IApplication>
{
    /** Main application class. */
    protected final String mainClass;
    
    /** Arguments to the class. */
    private final String[] _args;
    
    /**
     * Initializes the i-application interface.
     *
     * @param __mainClass The main class.
     * @param __args The application arguments.
     * @throws NullPointerException On null arguments.
     * @since 2021/11/30
     */
    @SquirrelJMEVendorApi
    public __IAppliInterface__(String __mainClass, String... __args)
        throws NullPointerException
    {
        if (__mainClass == null)
            throw new NullPointerException("NARG");
        
        this.mainClass = __mainClass;
        this._args = __args;
    }
    
    /**
     * {@inheritDoc}
     * @since 2021/11/30
     */
    @Override
    @SquirrelJMEVendorApi
    public void destroy(IApplication __instance, Throwable __thrown)
        throws NullPointerException, Throwable
    {
        if (__instance == null)
            throw new NullPointerException("NARG");
        
        // Indicate termination
        __instance.terminate();
        
        // Run all cleanup handlers
        CleanupHandler.runAll();
        
        // We need to exit the VM ourselves here
        System.exit((__thrown != null ? 1 : 0));
    }
    
    /**
     * {@inheritDoc}
     * @since 2021/11/30
     */
    @Override
    @SquirrelJMEVendorApi
    public IApplication newInstance()
        throws Throwable
    {
        // Load application details
        synchronized (IApplication.class)
        {
            IApplication._appArgs = this._args;
        }
        
        // Main class for entry
        String mainClass = this.mainClass;
        
        // Load the suite and vendor which is needed for RMS to properly
        // identify our own records
        String appName = System.getProperty(IModeApplication.NAME_PROPERTY);
        String appVend = System.getProperty(IModeApplication.VENDOR_PROPERTY);
        ApplicationHandler.setNameAndVendor(
            Objects.toString(appName, mainClass),
            Objects.toString(appVend, "SquirrelJME-i-Mode"));
        
        // Locate the main class before we initialize it
        Class<?> classType;
        try
        {
            classType = Class.forName(mainClass);
        }
        catch (ClassNotFoundException e)
        {
            // {@squirreljme.error AH01 Could not find main i-appli. (Class)}
            throw new RuntimeException(String.format("AH01 %s", mainClass),
                e);
        }
        
        // Create instance of the MIDlet
        try
        {
            // Create it
            Object rawInstance = classType.newInstance();
            
            // Catch class casts here because if there is one while the
            // instance is being created it will not be erroneously caught
            try
            {
                return (IApplication)rawInstance;
            }
            catch (ClassCastException e)
            {
                // {@squirreljme.error AH02 Class not an i-appli.}
                throw new RuntimeException("AH02", e);
            }
        }
        catch (IllegalAccessException | InstantiationException e)
        {
            // {@squirreljme.error AH03 Could not instantiate class.}
            throw new RuntimeException("AH03", e);
        }
    }
    
    /**
     * {@inheritDoc}
     * @since 2021/11/30
     */
    @Override
    @SquirrelJMEVendorApi
    public void startApp(IApplication __instance)
        throws NullPointerException, Throwable
    {
        if (__instance == null)
            throw new NullPointerException("NARG");
        
        // Set debug tracing for getting i-mode applications working
        //DebugShelf.verbose(VerboseDebugFlag.ALLOCATION);
        
        // Start the application
        __instance.start();
    }
    
    /**
     * {@inheritDoc}
     * @since 2022/07/21
     */
    @Override
    @SquirrelJMEVendorApi
    public ApplicationType type()
    {
        return ApplicationType.NTT_DOCOMO_DOJA;
    }
}