/*

 Copyright (c) 2006, University of Tromsø

 All rights reserved.

 Redistribution and use in source and binary forms, with or without 

 modification, are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this list 

    of conditions and the following disclaimer.

  * Redistributions in binary form must reproduce the above copyright notice, this 

    list of conditions and the following disclaimer in the documentation and/or other 

    materials provided with the distribution.

  * Neither the name of the University of Tromsø nor the names of its contributors may 

    be used to endorse or promote products derived from this software without specific 

    prior written permission.

 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY 

 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 

 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT 

 SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 

 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 

 TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 

 BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 

 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 

 ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 

 DAMAGE.

  */

 package argos;

 import java.io.File;

 import java.io.FileInputStream;

 import java.io.IOException;

 import java.lang.management.ManagementFactory;

 import java.rmi.RMISecurityManager;

 import java.util.ArrayList;

 import java.util.List;

 import java.util.logging.LogManager;

 import java.util.logging.Logger;

 import argos.config.Config;

 import argos.deploy.ComponentManager;

 import argos.deploy.HotDeployer;

 import argos.logging.Console;

 import argos.naming.NamingService;

 import argos.proxy.DynamicProxyUtil;

 import argos.util.Util;

 public class Argos {

     private static final Logger logger = Logger.getLogger(Argos.class.getName());

     public static final String DEPLOY_DIR = "deploy";

     public static final String LOG_DIR = "logs";

     public static final String TEMP_DIR = "temp";

     private static final String ARGOS_POLICY_FILE = "argos.policy";

 //TODO RUn assembly:assembly on deploy. what is deploy? should it be package?

     public static void main(String[] args) throws IOException {

         long start = System.currentTimeMillis();

         createFolders(TEMP_DIR, LOG_DIR, DEPLOY_DIR);

         if (!new File(Config.CONFIG_FILE).exists()) {

             Util.writeResourceToFile("/" + Config.CONFIG_FILE, Config.CONFIG_FILE);

         }

         Config config = Config.getInstance();

 //        System.setErr(Console.console);

         LogManager.getLogManager().readConfiguration(new FileInputStream(Config.CONFIG_FILE));

         logger.info("Log configuration file loaded.");

         String tempPolicyFile = TEMP_DIR + File.pathSeparator + ARGOS_POLICY_FILE;

         Util.writeResourceToFile("/" + ARGOS_POLICY_FILE, tempPolicyFile);

         System.setProperty("java.security.policy", tempPolicyFile);

         if (System.getSecurityManager() == null) {

             System.setSecurityManager(new RMISecurityManager());

         }

         // Create MBean server

         ManagementFactory.getPlatformMBeanServer();

         logger.info("MBean server created.");

         // Instrument console

         DynamicProxyUtil.instrument("Console", Console.console);

         // Register Config as MBean

         DynamicProxyUtil.instrument("Config", config);

         // Component manager

         DynamicProxyUtil.instrument("ComponentManager", ComponentManager.getInstance());

         logger.info("Component Manager created.");

         // Naming Service

         DynamicProxyUtil.instrument("NamingService", NamingService.getInstance());

         logger.info("Naming service created.");

         // Hot deployer

         if (args.length == 0) {

             HotDeployer deployer = HotDeployer.getInstance();

             DynamicProxyUtil.instrument("HotDeployer", deployer, false);

             deployer.start();

             logger.info("Hot deployer started.");

         } else {

             logger.info("Prefined files given on command line, not starting Hot deployer. Loading files...");

             List<File> files = new ArrayList<File>();

             for (String filename : args) {

                 files.add(new File(filename));

             }

             ComponentManager.getInstance().deploy(files);

         }

         Runtime.getRuntime().addShutdownHook(new ShutdownHook());

         // Done

         double used = (System.currentTimeMillis() - start) / 1000.0;

         logger.info("Argos core started successfully in " + used + "s.");

     }

     private static void createFolders(String... filenames) {

         for (String filename : filenames) {

             File directory = new File(filename);

             if (!directory.exists() || !directory.isDirectory()) {

                 logger.info("Creating directory " + filename);

                 directory.mkdir();

             }

         }

     }

 }