java.lang.Runtime Java Examples

final

  public static Map<String,String> mapEnvInfo(String filter) throws IOException {
      Process proc = Runtime.getRuntime().exec("env");
      Map<String, String> ret = new HashMap<>();
            try (InputStream stream = proc.getInputStream()) {
          try (Scanner s = new Scanner(stream).useDelimiter("\\n")) {
        	  while (s.hasNext())
        	  {
                  String val =  s.next();
                  String[] nameVal = val.split("=");
                  if (filter.equalsIgnoreCase("*"))
                	  ret.put(nameVal[0],nameVal.length > 1 ? nameVal[1] : "");
                  else
                  {
                	  if (nameVal[0].startsWith(filter))
                	  {
                    	  ret.put(nameVal[0],nameVal.length > 1 ? nameVal[1] : "");
                	  }
                  }
                  
        	  }
          } 
      } 
      return ret;
  }
 

public List<String> allProcesses() {
	List<String> processes = new LinkedList<String>();
	try {
	    String line;
	    Process p = null;
	    if(System.getProperty("os.name").toLowerCase().contains("win")) {
		    p = Runtime.getRuntime().exec
		    	    (System.getenv("windir") +"\\system32\\"+"tasklist.exe");
	    } else {
		    p = Runtime.getRuntime().exec("ps -e");
	    }
	    BufferedReader input =
	            new BufferedReader(new InputStreamReader(p.getInputStream()));
	    while ((line = input.readLine()) != null) {
	    	processes.add(line);
	    }
	    input.close();
	} catch (Exception err) {
	    err.printStackTrace();
	}
	
	return processes;
}
 

void getPosition(String startPic){
    System.out.println("##############"+startPic);
    try{
        String cmd = "bash ../externalModels/python/3dPosition/run3d.sh "+startPic;
        Process p = Runtime.getRuntime().exec(cmd);
        BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
        x = Integer.parseInt(in.readLine().split("=")[1]);
        y = Integer.parseInt(in.readLine().split("=")[1]);
        z = Integer.parseInt(in.readLine().split("=")[1]);
        gimbal = Integer.parseInt(in.readLine().split("=")[1]);
    } catch(Exception e){
        e.printStackTrace();
    }
    if(x == 0) {
        Rmoves[0] = 0;
        Lmoves[0] = 1;
    } else {
        Lmoves[0] = 0;
        Rmoves[0] = 1;
    } if(z == 0) {
        Rmoves[2] = 0;
        Lmoves[2] = 1;
    } else {
        Lmoves[2] = 0;
        Rmoves[2] = 1;
    } if(y == 0) {
        Rmoves[1] = 0;
        Lmoves[1] = 2;
    } else if(y == 1) {
        Rmoves[1] = 1;
        Lmoves[1] = 1;
    } else {
        Rmoves[1] = 2;
        Lmoves[1] = 0;
    }
}
 

public String driver_movt(String directory)
{
    File CubeDir = new File(directory);
    File[] listOfFiles = CubeDir.listFiles();
    int tx,ty,tz,tgimbal;
    for(File f : listOfFiles){
        try {
            System.out.println(f.getName());
            String cmd = "bash ../externalModels/python/3dPosition/run3d.sh "+directory+"/"+f.getName();
            Process p = Runtime.getRuntime().exec(cmd);
            BufferedReader in = new BufferedReader(new InputStreamReader(p.getInputStream()));
            tx = Integer.parseInt(in.readLine().split("=")[1]);
            ty = Integer.parseInt(in.readLine().split("=")[1]);
            tz = Integer.parseInt(in.readLine().split("=")[1]);
            tgimbal = Integer.parseInt(in.readLine().split("=")[1]);
            System.out.println(x+" "+y+" "+z+" "+gimbal);
            System.out.println(tx+" "+ty+" "+tz+" "+tgimbal);
            if(x == tx && y == ty && z == tz && (gimbal == -tgimbal || gimbal == tgimbal)){
                return directory + "/"+f.getName();
            }
        } catch(Exception e){
            e.printStackTrace();
        }
    }
    System.out.println("Return Null");
    return "";
}
 

public static String execReadToString(String execCommand) throws IOException {
    Process proc = Runtime.getRuntime().exec(execCommand);
    try (InputStream stream = proc.getInputStream()) {
        try (Scanner s = new Scanner(stream).useDelimiter("\\A")) {
            return s.hasNext() ? s.next() : "";
        }
    }
}
 

private static void runtool(jvm jvm, String loc, String[] args)
    throws IOException
{
    System.out.println(concatenate(args) + ':');

    if (jvm == null) {
        com.pivotal.gemfirexd.internal.iapi.tools.run.main(args);
        return;
    }

    Vector cmd = jvm.getCommandLine();
    cmd.addElement("-jar");
    cmd.addElement(loc);
    for (int i=0; i < args.length; i++) {
        cmd.addElement(args[i]);
    }
    String command = concatenate((String[]) cmd.toArray(new String[0]));

    Process pr = null;

    try
    {
        pr = Runtime.getRuntime().exec(command);
        BackgroundStreamSaver saver = 
                    new BackgroundStreamSaver(pr.getInputStream(), System.out);
        saver.finish();
        pr.waitFor();
        pr.destroy();
    } catch(Throwable t) {
        System.out.println("Process exception: " + t.getMessage());
        if (pr != null)
        {
            pr.destroy();
            pr = null;
        }
    }
}
 

private static void runtool(jvm jvm, String loc, String[] args)
    throws IOException
{
    System.out.println(concatenate(args) + ':');

    if (jvm == null) {
        com.pivotal.gemfirexd.internal.iapi.tools.run.main(args);
        return;
    }

    Vector cmd = jvm.getCommandLine();
    cmd.addElement("-jar");
    cmd.addElement(loc);
    for (int i=0; i < args.length; i++) {
        cmd.addElement(args[i]);
    }
    String command = concatenate((String[]) cmd.toArray(new String[0]));

    Process pr = null;

    try
    {
        pr = Runtime.getRuntime().exec(command);
        BackgroundStreamSaver saver = 
                    new BackgroundStreamSaver(pr.getInputStream(), System.out);
        saver.finish();
        pr.waitFor();
        pr.destroy();
    } catch(Throwable t) {
        System.out.println("Process exception: " + t.getMessage());
        if (pr != null)
        {
            pr.destroy();
            pr = null;
        }
    }
}
 

@ReactMethod(isBlockingSynchronousMethod = true)
public int getUsedMemorySync() {
  Runtime rt = Runtime.getRuntime();
  long usedMemory = rt.totalMemory() - rt.freeMemory();
  return (int)usedMemory;
}
 

@ReactMethod(isBlockingSynchronousMethod = true)
public double getMaxMemorySync() { return (double)Runtime.getRuntime().maxMemory(); }