Question

how can we dump all the JVM properties using live connect?

Answer 1

This script will do that

var df = new java.text.SimpleDateFormat("dd/MM/yy HH:mm:ss.SSS");

var calobj = java.util.Calendar.getInstance();

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "System Date Time";

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value ="" + df.format(calobj.getTime());

var cpucnt = java.lang.Runtime.getRuntime().availableProcessors();

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "CPU Count";

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value ="" + cpucnt;

function formatBytes(bytes,decimals) {

   if(bytes == 0) return '0 Bytes';

   var k = 1024,

       dm = decimals || 2,

       sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'],

       i = Math.floor(Math.log(bytes) / Math.log(k));

   return parseFloat((bytes / Math.pow(k, i)).toFixed(dm)) + ' ' + sizes[i];

}

        var inetAddress = java.net.InetAddress.getLocalHost();

        var intet6Address = java.net.Inet6Address.getLocalHost();

        

        var ipByte = intet6Address.getAllByName(inetAddress.getHostName());

        var ip = "";

        for( var cnt=0; cnt < ipByte.length; cnt++ ) {

        try{

           ip += (ipByte[cnt] < 0 ? ipByte[cnt]+256 : ipByte[cnt])+".";

           } catch (e){

           ;

           }

}

var host = inetAddress.getHostName();

        var add = [];

        add = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1 ];

 

        //getByAddress() method

        var ip1 = java.net.Inet6Address.getByAddress(host, add, 5);

        var  ip2 = java.net.Inet6Address.getByAddress(null, add, 6);

         

        var ipv6addr = ip1.getAddress().join("");

      ipv6addr += ", " + ip2.getAddress().join("");

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "Host Name";

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value ="" + inetAddress.getHostName();

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "IPV4 Adddress";

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value ="" + inetAddress.getHostAddress();

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "IPV6 Adddress";

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value ="" + ipv6addr;

var rt = java.lang.Runtime.getRuntime(); 

var total_mem = formatBytes(rt.totalMemory(),2); 

var free_mem = formatBytes(rt.freeMemory(),2); 

var used_mem = formatBytes(rt.totalMemory() - rt.freeMemory(), 2); 

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "Total Memory";

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value ="" + total_mem;

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "Free Memory";

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + free_mem;

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "Used Memory";

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + used_mem;

var mbs    = java.lang.management.ManagementFactory.getPlatformMBeanServer();

    var name    = javax.management.ObjectName.getInstance("java.lang:type=OperatingSystem");

    var str1 = new java.lang.String( "ProcessCpuLoad" );

    var arr1 = [];

    arr1[0] = str1;

    var list = mbs.getAttributes(name, arr1);

    if (list.isEmpty())     cpu = 0;

    var att = list.get(0);

    var value  = att.getValue();

    // usually takes a couple of seconds before we get real values

    if (value == -1.0)      cpu =0;

    // returns a percentage value with 1 decimal point precision

    cpu = (value * 1000) / 10.0; 

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "" + "CPU Load" ;

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + cpu;

var file = new java.io.File("/");

        var usableSpace = file.getUsableSpace(); ///unallocated / free disk space in bytes.

        var freeSpace = file.getFreeSpace(); //unallocated / free disk space in bytes.

        var totalspace = file.getTotalSpace();

        var usedSpace = totalspace - freeSpace;

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "" + "Total Space" ;

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + formatBytes(totalspace, 2);

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "" + "Used Space" ;

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + formatBytes(usedSpace, 2);

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "" + "Free Space" ;

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + formatBytes(freeSpace,2);

try{

var runtimeMXBean = java.lang.management.ManagementFactory.getRuntimeMXBean();

  var methods1 = runtimeMXBean.getClass().getDeclaredMethods();

  for (var i=0; i < methods1.length; i++) {

    methods1[i].setAccessible(true);

    if (java.lang.reflect.Modifier.isPublic(methods1[i].getModifiers())) {

            var value1;

            value1 = methods1[i].invoke(runtimeMXBean);

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "" + methods1[i].getName() ;

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + value1;

        

    } // if

  } // for

  } catch(e){

  

  }

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "JVM Runtime Arguments" ;

 var rta = runtimeMXBean.getInputArguments();

 var rtastr = "";

 for (var cnt1 =0; cnt1 < rta.size(); cnt1++){

 rtastr += ""+ rta.get(cnt1) + "    ";

 }

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value ="" + rtastr;

  

;

function dhm(t){

    var cd = 24 * 60 * 60 * 1000,

        ch = 60 * 60 * 1000,

        d = Math.floor(t / cd),

        h = Math.floor( (t - d * cd) / ch),

        m = Math.round( (t - d * cd - h * ch) / 60000),

        pad = function(n){ return n < 10 ? '0' + n : n; };

  if( m === 60 ){

    h++;

    m = 0;

  }

  if( h === 24 ){

    d++;

    h = 0;

  }

  return [d+" Days ", pad(h)+" Hours ", pad(m)+" Minutes "].join(':');

}

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "JVM Uptime " ;

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + dhm(runtimeMXBean.getUptime());

try{

  var operatingSystemMXBean = java.lang.management.ManagementFactory.getOperatingSystemMXBean();

  var methods = operatingSystemMXBean.getClass().getDeclaredMethods();

  for (var i=0; i < methods.length; i++) {

    methods[i].setAccessible(true);

    if (java.lang.reflect.Modifier.isPublic(methods[i].getModifiers())) {

            var value;

            value = methods[i].invoke(operatingSystemMXBean);

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = "" + methods[i].getName() ;

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = "" + value;

        

    } // if

  } // for

} catch(e){

}

var p = java.lang.System.getProperties();

var keys = p.keys();

while (keys.hasMoreElements()) {

tw.local.SystemInfo[tw.local.SystemInfo.listLength] = new tw.object.toolkit.TWSYS.NameValuePair();

    var key = ""+keys.nextElement();

    var value = "" + p.get(key);

 tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].name = key;

tw.local.SystemInfo[tw.local.SystemInfo.listLength-1].value = value;

   

}

tw.local.results = tw.local.SystemInfo;