com.automationrockstars.bmo.event.processor.Server Maven / Gradle / Ivy

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package com.automationrockstars.bmo.event.processor;

import java.io.File;
import java.io.IOException;
import java.nio.file.Paths;
import java.util.concurrent.ExecutionException;

import org.apache.commons.io.FileUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.webbitserver.WebServer;
import org.webbitserver.WebServers;

import com.automationrockstars.base.ConfigLoader;
import com.automationrockstars.bmo.event.processor.internal.CatchAllHttpListener;
import com.automationrockstars.bmo.event.processor.internal.ProcessorFactory;

public class Server {

	private static WebServer server;
	private static Logger LOG = LoggerFactory.getLogger(Server.class);
	
	private static void startServer(){
		try {
			server = WebServers.createWebServer(ConfigLoader.config().getInt("server.port",8090))
					.add(CatchAllHttpListener.get())
					.start().get();
			LOG.info("HTTP server start on port {}",server.getPort());
		} catch (InterruptedException | ExecutionException e) {
			LOG.error("Cannot start server",e);
		}
	}
	
	private static void stopServer(){
		if (server!=null){
			try {
				server.stop().get();
			} catch (InterruptedException | ExecutionException e) {
				LOG.error("Problem stopping server",e);
			}
		}
	}
	
	public static void start(){
		startServer();
		ProcessorFactory.registerProcessors();
	}
	
	public static void stop(){
		stopServer();
	}
	
	public static void main(String[] args) throws IOException, InterruptedException {
		if (Paths.get("server.lock").toFile().exists()){
			FileUtils.forceDelete(Paths.get("server.lock").toFile());
		}
		Server.start();
		File lockFile = Paths.get("server.lock").toFile();
		FileUtils.touch(lockFile);
		while(lockFile.exists() && lockFile.canRead()){
			Thread.sleep(ConfigLoader.config().getInt("server.pull",5000));
		}
		Server.stop();
	}
}