RecompileClassesAction.java

package org.fhnw.aigs.server.gameHandling;

import org.fhnw.aigs.server.common.ServerConfiguration;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.File;
import java.util.ArrayList;
import java.util.Vector;
import javax.swing.JList;
import org.fhnw.aigs.server.common.LogRouter;
import org.fhnw.aigs.server.common.LoggingLevel;
import org.fhnw.aigs.server.gui.ServerGUI;

/**
 * Recompile and reloads all the game classes. Reloading means it recompiles and distributes
 * them using several custom ant targets. Use this function whenever you changed
 * the game logic of your games. This method sends a ForceCloseMessage to all
 * clients and terminates all games.
 * <br>v1.0 Origin Name 'ReloadClassesAction'
 * <br>v1.1 Refactored to 'RecompileClassesAction'
 * <br>v1.2 Bugfixes
 * <br>v1.3 Added some error handling to the compiling process
 * <br>v1.4 Minor changes due to changes on the GUI
 * <br>v1.5 Changing of logging
 * @version 1.5 (Raphael Stoeckli, 24.02.2015)
 */
public class RecompileClassesAction implements ActionListener {

    private Vector<String> content;
    private JList list;
    private boolean GUImode = false;
    
    /**
     * Constructor called from the GUI
     * @param content Reference to the list of games 
     * @param list Reference to JList of available games in ithe GUI
     */
    public RecompileClassesAction(Vector<String> content, JList list) // Button
    {
        this.content = content;
        this.list = list;
        this.GUImode = true;
        actionPerformed(null);
    }
    
    /**
     * Constructor called from the console
     */
    public RecompileClassesAction() // Console
    {
        this.GUImode = false;
        actionPerformed(null);
    }    
    
    @Override
    public void actionPerformed(ActionEvent e) {
        if (e != null) // Only compile, if event raised from button, not at startup
        {
        recompileClasses();
        }
        if (this.GUImode == true)
        {
            reloadClasses();
        }
    }
    
    /**
     * Recomplie and Reloads all games/classes. This means that all .jar files in the 
     * folder "games" will be unloaded and reloaded.
     * This causes the termination of all running and waiting games.
     */
    public void recompileClasses(){
        
        if (checkSetup() == false)
        {
            //LOG//Logger.getLogger(RecompileClassesAction.class.getName()).log(Level.INFO, "Continue without compiling");
            LogRouter.log(RecompileClassesAction.class.getName(), LoggingLevel.system, "Continue without compiling");
            return; // Do not compile
        }
        
        String gamesDirectory = ServerConfiguration.getInstance().getGameSourcesDirectory();
        
        if (GameLoader.checkFolderExists(gamesDirectory, true) == false)
        {
            //LOG//Logger.getLogger(GameLoader.class.getName()).log(Level.SEVERE, "The game source folder (games) could not be created. Check the server installation!");
            LogRouter.log(RecompileClassesAction.class.getName(), LoggingLevel.severe, "The game source folder (games) could not be created. Check the server installation!");
        }
        
        File dir = new File(gamesDirectory);
        File[] files = dir.listFiles();
        if (files.length == 0)
        {
            //LOW//Logger.getLogger(RecompileClassesAction.class.getName()).log(Level.INFO, "No games to recompile found...\nContinue without action");
            LogRouter.log(RecompileClassesAction.class.getName(), LoggingLevel.system, "No games to recompile found...\nContinue without action");
            return;
        }
        
        boolean state = GameLoader.rebuildClasses();

        if (state == true)
        {
            //LOG//Logger.getLogger(RecompileClassesAction.class.getName()).log(Level.INFO, "-------------------\nRECOMPILED AND RELOADED ALL GAMES\n-------------------");
            LogRouter.log(RecompileClassesAction.class.getName(), LoggingLevel.system, "-------------------\nRECOMPILED AND RELOADED ALL GAMES\n-------------------");
        }
        else
        {
            //LOG//Logger.getLogger(RecompileClassesAction.class.getName()).log(Level.SEVERE, "An error occurred while compiling. Check appearance of the AIGS Commons project, appearance of the bin folder in the AIGS Commons project and the validiy of AIGS Common or the projects in the games folder.");
            LogRouter.log(RecompileClassesAction.class.getName(), LoggingLevel.severe, "An error occurred while compiling. Check appearance of the AIGS Commons project, appearance of the bin folder in the AIGS Commons project and the validiy of AIGS Common or the projects in the games folder.");
        }
        for (int i = 0; i < GameManager.waitingGames.size(); i++) {
            if(ServerConfiguration.getInstance().getIsConsoleMode() == false){
                ServerGUI.getInstance().removeGameFromList(GameManager.waitingGames.get(i), true);                
            }
            GameManager.terminateGame(GameManager.waitingGames.get(i), "Server restarts.");

        }
        for (int i = 0; i < GameManager.runningGames.size(); i++) {
            if(ServerConfiguration.getInstance().getIsConsoleMode() == false){
                ServerGUI.getInstance().removeGameFromList(GameManager.runningGames.get(i), false);
            }
            GameManager.terminateGame(GameManager.runningGames.get(i), "Server restarts.");
        }
        User.removeAllNonPersistentUsers();                                     // Removes all previously created users
    }
  
    /**
     * Reloads all games/classes. This is only a visual feedback
     */    
    public void reloadClasses()
    {
        ArrayList<String> games = GameLoader.getInstalledGames();
        this.content.clear();
        for(int i = 0; i < games.size(); i++)
        {
            this.content.add(games.get(i));
        }
        this.list.setListData(this.content);        
    }
    
    /**
     * Checkt the setup of the AIGS server before compiling games
     * @return True if the setup is OK for compiling, otherwise false
     * @since v1.3
     */
    private boolean checkSetup()
    {
        boolean state = true;
        String commonsPath = "../AIGS Commons";
        if (GameLoader.checkFolderExists(commonsPath, false) == false)
        {
            //LOG//Logger.getLogger(RecompileClassesAction.class.getName()).log(Level.WARNING, "The AIGS Commons project was not found at the position: '" + commonsPath + "'\nPlease check the setup...");
            LogRouter.log(RecompileClassesAction.class.getName(), LoggingLevel.waring, "The AIGS Commons project was not found at the position: '" + commonsPath + "'\nPlease check the setup...");
            state = false;
        }
        String buildfilePath = "build.xml";
        try
        {
            File f = new File(buildfilePath);
            if (f.exists() == false)
            {
                //LOG//Logger.getLogger(RecompileClassesAction.class.getName()).log(Level.WARNING, "The Ant script (build file) does not exist: '" + buildfilePath + "'\nPlease check the setup...");
                LogRouter.log(RecompileClassesAction.class.getName(), LoggingLevel.waring, "The Ant script (build file) does not exist: '" + buildfilePath + "'\nPlease check the setup...");
                state = false;
            }
        }
        catch(Exception e)
        {
            //LOG//Logger.getLogger(RecompileClassesAction.class.getName()).log(Level.WARNING, "An error occurred while checking the Ant script (build file): '" + buildfilePath + "'\nPlease check the setup...");
            LogRouter.log(RecompileClassesAction.class.getName(), LoggingLevel.waring, "An error occurred while checking the Ant script (build file): '" + buildfilePath + "'\nPlease check the setup...");
            state = false;
        }
        return state;
    }

}