Java tutorial
/* ************************************************************************ # # DivConq # # http://divconq.com/ # # Copyright: # Copyright 2014 eTimeline, LLC. All rights reserved. # # License: # See the license.txt file in the project's top-level directory for details. # # Authors: # * Andy White # ************************************************************************ */ package divconq.hub; import java.util.Scanner; import org.apache.commons.daemon.DaemonContext; import org.apache.commons.daemon.DaemonInitException; import divconq.lang.op.OperationContext; import divconq.lang.op.OperationResult; import divconq.log.DebugLevel; import divconq.log.Logger; public class Daemon implements org.apache.commons.daemon.Daemon { protected DaemonContext procCtx = null; public static void main(String[] args) { try { Daemon.startService(args); try (Scanner scan = new Scanner(System.in)) { System.out.println("Press enter to end Daemon"); scan.nextLine(); } } catch (Exception x) { } Daemon.stopService(args); } public static void startService(String[] args) { String deployment = (args.length > 0) ? args[0] : null; String squadid = (args.length > 1) ? args[1] : null; String hubid = (args.length > 2) ? args[2] : null; OperationContext.useHubContext(); HubResources resources = new HubResources(deployment, squadid, null, hubid); resources.setDebugLevel(DebugLevel.Info); OperationResult or = resources.init(); if (or.hasErrors()) { Logger.error("Unable to continue, hub resources not properly configured"); return; } or = Hub.instance.start(resources); if (or.hasErrors()) { Logger.error("Unable to continue, hub not properly started, please see logs"); Hub.instance.stop(); System.exit(1); return; } Logger.info("Daemon started"); } public static void stopService(String[] args) { OperationContext.useHubContext(); Logger.info("Daemon stopping"); Hub.instance.stop(); } @Override public void start() throws Exception { Daemon.startService(this.procCtx.getArguments()); } @Override public void stop() throws Exception { Daemon.stopService(this.procCtx.getArguments()); } @Override public void destroy() { this.procCtx = null; } @Override public void init(DaemonContext ctx) throws DaemonInitException, Exception { this.procCtx = ctx; } }