Files
qqq/qqq-sample-project/src/main/java/com/kingsrook/sampleapp/SampleJavalinServer.java

113 lines
3.6 KiB
Java

/*
* QQQ - Low-code Application Framework for Engineers.
* Copyright (C) 2021-2022. Kingsrook, LLC
* 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
* contact@kingsrook.com
* https://github.com/Kingsrook/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.kingsrook.sampleapp;
import com.kingsrook.qqq.backend.core.model.metadata.QInstance;
import com.kingsrook.qqq.backend.javalin.QJavalinImplementation;
import io.javalin.Javalin;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
/*******************************************************************************
**
*******************************************************************************/
public class SampleJavalinServer
{
private static final Logger LOG = LogManager.getLogger(SampleJavalinServer.class);
private static final int PORT = 8000;
private QInstance qInstance;
private Javalin javalinService;
/*******************************************************************************
**
*******************************************************************************/
public static void main(String[] args)
{
new SampleJavalinServer().startJavalinServer();
}
/*******************************************************************************
**
*******************************************************************************/
public void startJavalinServer()
{
try
{
qInstance = SampleMetaDataProvider.defineInstance();
QJavalinImplementation qJavalinImplementation = new QJavalinImplementation(qInstance);
javalinService = Javalin.create(config ->
{
// todo - not all!!
config.enableCorsForAllOrigins();
}).start(PORT);
javalinService.routes(qJavalinImplementation.getRoutes());
/////////////////////////////////////////////////////////////////
// set the server to hot-swap the q instance before all routes //
/////////////////////////////////////////////////////////////////
QJavalinImplementation.setQInstanceHotSwapSupplier(() ->
{
try
{
return (SampleMetaDataProvider.defineInstance());
}
catch(Exception e)
{
LOG.warn("Error hot-swapping meta data", e);
return (null);
}
});
javalinService.before(QJavalinImplementation::hotSwapQInstance);
javalinService.after(ctx ->
ctx.res.setHeader("Access-Control-Allow-Origin", "http://localhost:3000"));
}
catch(Exception e)
{
LOG.error("Failed to start javalin server. See stack trace for details.", e);
}
}
/*******************************************************************************
**
*******************************************************************************/
public void stopJavalinServer()
{
if(javalinService != null)
{
javalinService.stop();
}
}
}