supported linux memory reading

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/Launcher.java

@@ -79,7 +79,14 @@ public final class Launcher {
         int len = tokenized.length;
 
         if (showInfo) {
-            LogWindow.INSTANCE.setTerminateGame(() -> Utils.shutdownForcely(1));
+            LogWindow.INSTANCE.setTerminateGame(() -> {
+                try {
+                    Utils.shutdownForcely(1);
+                } catch (Exception e) {
+                    MessageBox.Show(C.i18n("launcher.exit_failed"));
+                    HMCLog.err("Failed to shutdown forcely", e);
+                }
+            });
             try {
                 File logFile = new File("hmclmc.log");
                 if (!logFile.exists())
@@ -159,7 +166,12 @@ public final class Launcher {
         }
 
         println("*** Game Exited ***");
-        Utils.shutdownForcely(1);
+        try {
+            Utils.shutdownForcely(flag);
+        } catch (Exception e) {
+            MessageBox.Show(C.i18n("launcher.exit_failed"));
+            HMCLog.err("Failed to shutdown forcely", e);
+        }
     }
     /*
     static Object getShutdownHaltLock() {

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/utils/installers/InstallerVersionList.java

@@ -18,7 +18,6 @@
 package org.jackhuang.hellominecraft.launcher.utils.installers;
 
 import java.util.ArrayList;
-import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 import org.jackhuang.hellominecraft.utils.functions.Consumer;

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/version/MinecraftVersionManager.java

@@ -42,7 +42,7 @@ import org.jackhuang.hellominecraft.tasks.TaskWindow;
 import org.jackhuang.hellominecraft.tasks.download.FileDownloadTask;
 import org.jackhuang.hellominecraft.utils.system.IOUtils;
 import org.jackhuang.hellominecraft.utils.MessageBox;
-import org.jackhuang.hellominecraft.utils.Utils;
+import org.jackhuang.hellominecraft.views.SwingUtils;
 
 /**
  *
@@ -205,7 +205,7 @@ public class MinecraftVersionManager extends IMinecraftProvider {
 
     @Override
     public void open(String mv, String name) {
-        Utils.openFolder((name == null) ? getRunDirectory(mv) : new File(getRunDirectory(mv), name));
+        SwingUtils.openFolder((name == null) ? getRunDirectory(mv) : new File(getRunDirectory(mv), name));
     }
 
     @Override

HMCL/src/main/java/org/jackhuang/hellominecraft/launcher/views/MainPagePanel.java

@@ -567,7 +567,15 @@ public class MainPagePanel extends AnimatedPanel implements Event<String> {
                     MainFrame.INSTANCE.dispose();
                 }
                 JavaProcessMonitor jpm = new JavaProcessMonitor(p);
-                jpm.stoppedEvent.register((sender3, t) -> {
+                jpm.applicationExitedAbnormallyEvent.register((sender2, t) -> {
+                    MessageBox.Show(C.i18n("launch.exited_abnormally") + ", exit code: " + t);
+                    return true;
+                });
+                jpm.jvmLaunchFailedEvent.register((sender2, t) -> {
+                    MessageBox.Show(C.i18n("launch.cannot_create_jvm") + ", exit code: " + t);
+                    return true;
+                });
+                jpm.stoppedEvent.register((sender2, t) -> {
                     if (obj.getProfile().getLauncherVisibility() != LauncherVisibility.KEEP && !LogWindow.INSTANCE.isVisible())
                         System.exit(0);
                     return true;

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/tasks/TaskList.java

@@ -40,6 +40,7 @@ public class TaskList extends Thread {
     boolean shouldContinue = true;
 
     public TaskList() {
+        setDaemon(true);
     }
 
     public void clean() {
@@ -71,6 +72,7 @@ public class TaskList extends Thread {
         public InvokeThread(Task task, Set<InvokeThread> ss) {
             this.task = task;
             s = ss;
+            setDaemon(true);
         }
 
         @Override

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/utils/Utils.java

@@ -18,14 +18,12 @@
 package org.jackhuang.hellominecraft.utils;
 
 import com.sun.management.OperatingSystemMXBean;
-import java.awt.Desktop;
 import java.awt.Image;
 import java.awt.Toolkit;
 import java.awt.datatransfer.StringSelection;
 import java.io.File;
 import java.io.UnsupportedEncodingException;
 import java.lang.management.ManagementFactory;
-import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -33,7 +31,6 @@ import java.net.URLClassLoader;
 import java.net.URLDecoder;
 import java.util.Random;
 import javax.swing.ImageIcon;
-import org.jackhuang.hellominecraft.C;
 import org.jackhuang.hellominecraft.HMCLog;
 
 /**
@@ -79,16 +76,6 @@ public final class Utils {
         Toolkit.getDefaultToolkit().getSystemClipboard().setContents(new StringSelection(text), null);
     }
 
-    public static void openFolder(File f) {
-        try {
-            f.mkdirs();
-            java.awt.Desktop.getDesktop().open(f);
-        } catch (Exception ex) {
-            MessageBox.Show(C.i18n("message.cannot_open_explorer") + ex.getMessage());
-            HMCLog.warn("Failed to open folder:" + f, ex);
-        }
-    }
-
     public static ImageIcon scaleImage(ImageIcon i, int x, int y) {
         return new ImageIcon(i.getImage().getScaledInstance(x, y, Image.SCALE_SMOOTH));
     }
@@ -153,16 +140,11 @@ public final class Utils {
      *
      * @param status exit code
      */
-    public static void shutdownForcely(int status) {
+    public static void shutdownForcely(int status) throws Exception {
-        try {
         Class z = Class.forName("java.lang.Shutdown");
         Method exit = z.getDeclaredMethod("exit", int.class);
         exit.setAccessible(true);
         exit.invoke(z, status);
-        } catch (ClassNotFoundException | NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
-            MessageBox.Show(C.i18n("launcher.exit_failed"));
-            e.printStackTrace();
-        }
     }
 
     public static void requireNonNull(Object o) {

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/utils/system/JavaProcessMonitor.java

@@ -17,10 +17,8 @@
  */
 package org.jackhuang.hellominecraft.utils.system;
 
-import org.jackhuang.hellominecraft.utils.MessageBox;
 import java.util.Arrays;
 import java.util.HashSet;
-import org.jackhuang.hellominecraft.C;
 import org.jackhuang.hellominecraft.utils.CollectionUtils;
 import org.jackhuang.hellominecraft.utils.Event;
 import org.jackhuang.hellominecraft.utils.EventHandler;
@@ -33,7 +31,20 @@ import org.jackhuang.hellominecraft.utils.StrUtils;
 public class JavaProcessMonitor {
 
     private final HashSet<Thread> al = new HashSet<>();
+    /**
+     * this event will be executed only if the application returned 0.
+     */
     public final EventHandler<JavaProcess> stoppedEvent = new EventHandler<>(this);
+    /**
+     * When the monitored application exited with exit code not zero, this event
+     * will be executed. Event args is the exit code.
+     */
+    public final EventHandler<Integer> applicationExitedAbnormallyEvent = new EventHandler<>(this);
+    /**
+     * When jvm crashed, this event will be executed. Event args is the exit
+     * code.
+     */
+    public final EventHandler<Integer> jvmLaunchFailedEvent = new EventHandler<>(this);
     private final JavaProcess p;
 
     public JavaProcessMonitor(JavaProcess p) {
@@ -43,7 +54,7 @@ public class JavaProcessMonitor {
     public void start() {
         Event<JavaProcess> event = (sender2, t) -> {
             if (t.getExitCode() != 0)
-                MessageBox.Show(C.i18n("launch.exited_abnormally"));
+                applicationExitedAbnormallyEvent.execute(t.getExitCode());
             processThreadStopped((ProcessThread) sender2, false);
             return true;
         };
@@ -51,7 +62,7 @@ public class JavaProcessMonitor {
             if (p1.getExitCode() != 0 && p1.getStdErrLines().size() > 0 && StrUtils.containsOne(p1.getStdErrLines(), Arrays.asList("Could not create the Java Virtual Machine.",
                                                                                                                                    "Error occurred during initialization of VM",
                                                                                                                                    "A fatal exception has occurred. Program will exit.")))
-                MessageBox.Show(C.i18n("launch.cannot_create_jvm"));
+                jvmLaunchFailedEvent.execute(p1.getExitCode());
             processThreadStopped((ProcessThread) sender3, false);
             return true;
         };

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/utils/system/OS.java

@@ -18,7 +18,13 @@
 package org.jackhuang.hellominecraft.utils.system;
 
 import com.sun.management.OperatingSystemMXBean;
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
 import java.lang.management.ManagementFactory;
+import java.util.StringTokenizer;
 import org.jackhuang.hellominecraft.HMCLog;
 
 /**
@@ -40,9 +46,8 @@ public enum OS {
     }
 
     public static OS os() {
-        String str;
+        String str = System.getProperty("os.name").toLowerCase();
-        if ((str = System.getProperty("os.name").toLowerCase())
+        if (str.contains("win"))
-        .contains("win"))
             return OS.WINDOWS;
         if (str.contains("mac"))
             return OS.OSX;
@@ -62,12 +67,45 @@ public enum OS {
      */
     public static long getTotalPhysicalMemory() {
         try {
+            if (os() == LINUX)
+                return memoryInfoForLinux()[0] * 1024;
+            else {
                 OperatingSystemMXBean o = (OperatingSystemMXBean) ManagementFactory.getOperatingSystemMXBean();
                 return o.getTotalPhysicalMemorySize();
+            }
         } catch (Throwable t) {
-            HMCLog.warn("Failed to get total physical memory size");
+            HMCLog.warn("Failed to get total physical memory size", t);
             return -1;
         }
     }
 
+    public static long[] memoryInfoForLinux() throws IOException {
+        File file = new File("/proc/meminfo");
+        BufferedReader br = new BufferedReader(new InputStreamReader(
+            new FileInputStream(file)));
+        long[] result = new long[4];
+        String str = null;
+        StringTokenizer token;
+        while ((str = br.readLine()) != null) {
+            token = new StringTokenizer(str);
+            if (!token.hasMoreTokens())
+                continue;
+
+            str = token.nextToken();
+            if (!token.hasMoreTokens())
+                continue;
+
+            if (str.equalsIgnoreCase("MemTotal:"))
+                result[0] = Long.parseLong(token.nextToken());
+            else if (str.equalsIgnoreCase("MemFree:"))
+                result[1] = Long.parseLong(token.nextToken());
+            else if (str.equalsIgnoreCase("SwapTotal:"))
+                result[2] = Long.parseLong(token.nextToken());
+            else if (str.equalsIgnoreCase("SwapFree:"))
+                result[3] = Long.parseLong(token.nextToken());
+        }
+
+        return result;
+    }
+
 }

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/views/LogWindow.java

@@ -28,6 +28,7 @@ import org.jackhuang.hellominecraft.logging.Level;
 import org.jackhuang.hellominecraft.utils.functions.NonFunction;
 import org.jackhuang.hellominecraft.utils.DoubleOutputStream;
 import org.jackhuang.hellominecraft.utils.LauncherPrintStream;
+import org.jackhuang.hellominecraft.utils.MessageBox;
 import org.jackhuang.hellominecraft.utils.Utils;
 
 /**
@@ -208,7 +209,12 @@ public class LogWindow extends javax.swing.JFrame {
         if (flag)
             this.dispose();
         else
+            try {
                 Utils.shutdownForcely(0);
+            } catch (Exception e) {
+                MessageBox.Show(C.i18n("launcher.exit_failed"));
+                HMCLog.err("Failed to shutdown forcely", e);
+            }
     }//GEN-LAST:event_btnCloseActionPerformed
 
     private void btnClearActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnClearActionPerformed

HMCLAPI/src/main/java/org/jackhuang/hellominecraft/views/SwingUtils.java

@@ -19,6 +19,8 @@ package org.jackhuang.hellominecraft.views;
 
 import java.awt.EventQueue;
 import java.awt.FontMetrics;
+import java.io.File;
+import java.io.IOException;
 import java.net.URI;
 import javax.swing.DefaultListModel;
 import javax.swing.JLabel;
@@ -28,9 +30,12 @@ import javax.swing.JScrollPane;
 import javax.swing.JTable;
 import javax.swing.JTextArea;
 import javax.swing.table.DefaultTableModel;
+import org.jackhuang.hellominecraft.C;
 import org.jackhuang.hellominecraft.HMCLog;
+import org.jackhuang.hellominecraft.utils.MessageBox;
 import org.jackhuang.hellominecraft.utils.StrUtils;
 import org.jackhuang.hellominecraft.utils.functions.NonFunction;
+import org.jackhuang.hellominecraft.utils.system.OS;
 
 /**
  *
@@ -67,6 +72,28 @@ public class SwingUtils {
         };
     }
 
+    public static void openFolder(File f) {
+        f.mkdirs();
+        String path = f.getAbsolutePath();
+        switch (OS.os()) {
+        case OSX:
+            try {
+                Runtime.getRuntime().exec(new String[]{"/usr/bin/open", path});
+            } catch (IOException ex) {
+                HMCLog.err("Failed to open " + path + " through /usr/bin/open", ex);
+            }
+            break;
+        default:
+            try {
+                java.awt.Desktop.getDesktop().open(f);
+            } catch (Throwable ex) {
+                MessageBox.Show(C.i18n("message.cannot_open_explorer") + ex.getMessage());
+                HMCLog.warn("Failed to open " + path + " through java.awt.Desktop.getDesktop().open()", ex);
+            }
+            break;
+        }
+    }
+
     /**
      * Open URL by java.awt.Desktop
      *
@@ -76,6 +103,12 @@ public class SwingUtils {
         try {
             java.awt.Desktop.getDesktop().browse(new URI(link));
         } catch (Throwable e) {
+            if (OS.os() == OS.OSX)
+                try {
+                    Runtime.getRuntime().exec(new String[]{"/usr/bin/open", link});
+                } catch (IOException ex) {
+                    HMCLog.warn("Failed to open link: " + link, ex);
+                }
             HMCLog.warn("Failed to open link: " + link, e);
         }
     }

HMCSM/src/main/java/org/jackhuang/hellominecraft/svrmgr/utils/MonitorServiceImpl.java

@@ -37,7 +37,7 @@ public class MonitorServiceImpl implements IMonitorService {
     private static final int CPUTIME = 30;
     private static final int PERCENT = 100;
     private static final int FAULTLENGTH = 10;
-    private static String linuxVersion = null;
+    private static final String linuxVersion = null;
 
     /**
      * 获得当前的监控对象.
@@ -94,7 +94,6 @@ public class MonitorServiceImpl implements IMonitorService {
         BufferedReader brStat = null;
         StringTokenizer tokenStat;
         try {
-            System.out.println("Getting usage rate of CPU , linux version: " + linuxVersion);
             Process process = Runtime.getRuntime().exec("top -b -n 1");
             is = process.getInputStream();
             isr = new InputStreamReader(is);
@@ -249,26 +248,4 @@ public class MonitorServiceImpl implements IMonitorService {
         }
         return null;
     }
-
-    /**
-     * 测试方法.
-     *
-     * @param args
-     *
-     * @throws Exception
-     * @author GuoHuang
-     */
-    public static void main(String[] args) throws Exception {
-        IMonitorService service = new MonitorServiceImpl();
-        MonitorInfoBean monitorInfo = service.getMonitorInfoBean();
-        System.out.println("cpu占有率=" + monitorInfo.getCpuRatio());
-        System.out.println("可使用内存=" + monitorInfo.getTotalMemory());
-        System.out.println("剩余内存=" + monitorInfo.getFreeMemory());
-        System.out.println("最大可使用内存=" + monitorInfo.getMaxMemory());
-        System.out.println("操作系统=" + monitorInfo.getOsName());
-        System.out.println("总的物理内存=" + monitorInfo.getTotalMemorySize() + "kb");
-        System.out.println("剩余的物理内存=" + monitorInfo.getFreeMemory() + "kb");
-        System.out.println("已使用的物理内存=" + monitorInfo.getUsedMemory() + "kb");
-        System.out.println("线程总数=" + monitorInfo.getTotalThread() + "kb");
-    }
 }