Coverage Summary for Class: DesktopLauncher (com.mygdx.game.desktop)

1 package com.mygdx.game.desktop;
2 
3 import com.badlogic.gdx.backends.lwjgl3.Lwjgl3Application;
4 import com.badlogic.gdx.backends.lwjgl3.Lwjgl3ApplicationConfiguration;
5 import com.mygdx.game.PirateGame;
6 
7 import java.io.BufferedReader;
8 import java.io.InputStream;
9 import java.io.InputStreamReader;
10 import java.lang.management.ManagementFactory;
11 import java.util.ArrayList;
12 import java.util.List;
13 
14 import static com.mygdx.utils.Constants.*;
15 
16 public class DesktopLauncher {
17     public static void main(String[] arg) {
18         // Hack around the -XstartOnFirstThread issue with Mac & libgdx
19         if (restartJVM()) {
20             return;
21         }
22 
23         INIT_CONSTANTS();
24 
25         Lwjgl3ApplicationConfiguration cfg = new Lwjgl3ApplicationConfiguration();
26         cfg.setTitle(VIEWPORT_TITLE);
27 
28         if (FULLSCREEN) {
29             cfg.setFullscreenMode(Lwjgl3ApplicationConfiguration.getDisplayMode());
30         } else {
31             cfg.setWindowedMode(VIEWPORT_WIDTH, VIEWPORT_HEIGHT);
32         }
33 
34         if (!VSYNC) {
35             cfg.useVsync(false);
36             cfg.setForegroundFPS(0);
37         }
38 
39         new Lwjgl3Application(new PirateGame(), cfg);
40     }
41 
42     public static boolean restartJVM() {
43 
44         String osName = System.getProperty("os.name");
45 
46         // if not a mac return false
47         if (!osName.startsWith("Mac") && !osName.startsWith("Darwin")) {
48             return false;
49         }
50 
51         // get current jvm process pid
52         String pid = ManagementFactory.getRuntimeMXBean().getName().split("@")[0];
53         // get environment variable on whether XstartOnFirstThread is enabled
54         String env = System.getenv("JAVA_STARTED_ON_FIRST_THREAD_" + pid);
55 
56         // if environment variable is "1" then XstartOnFirstThread is enabled
57         if (env != null && env.equals("1")) {
58             return false;
59         }
60 
61         // restart jvm with -XstartOnFirstThread
62         String separator = System.getProperty("file.separator");
63         String classpath = System.getProperty("java.class.path");
64         String mainClass = System.getenv("JAVA_MAIN_CLASS_" + pid);
65         String jvmPath = System.getProperty("java.home") + separator + "bin" + separator + "java";
66 
67         List<String> inputArguments = ManagementFactory.getRuntimeMXBean().getInputArguments();
68 
69         ArrayList<String> jvmArgs = new ArrayList<String>();
70 
71         jvmArgs.add(jvmPath);
72         jvmArgs.add("-XstartOnFirstThread");
73         jvmArgs.addAll(inputArguments);
74         jvmArgs.add("-cp");
75         jvmArgs.add(classpath);
76         jvmArgs.add(mainClass);
77 
78         try {
79             ProcessBuilder processBuilder = new ProcessBuilder(jvmArgs);
80             processBuilder.redirectErrorStream(true);
81             Process process = processBuilder.start();
82 
83             InputStream is = process.getInputStream();
84             InputStreamReader isr = new InputStreamReader(is);
85             BufferedReader br = new BufferedReader(isr);
86             String line;
87 
88             while ((line = br.readLine()) != null) {
89                 System.out.println(line);
90             }
91 
92             process.waitFor();
93         } catch (Exception e) {
94             e.printStackTrace();
95         }
96 
97         return true;
98     }
99 }