function pad(n) { return n < 10 ? '0' + n : n };
function ISODateString(d) {  
  return d.getUTCFullYear() + '-'  
      + pad(d.getUTCMonth() + 1) +'-'  
      + pad(d.getUTCDate()) + 'T'  
      + pad(d.getUTCHours()) + ':'  
      + pad(d.getUTCMinutes()) + ':'  
      + pad(d.getUTCSeconds());
};

print("Starting fill database: " + Date());
maxLines = 1000;
progressStep = maxLines / 100;
devicesCount = maxLines / 5;
for (var i = 1; i <= maxLines; i++) { 
  db.measuresData.insert(
  {
    "measureId"  : i,
    "deviceId"   : Math.floor(Math.random() * devicesCount + 1),
    "stateId"    : Math.floor(Math.random() * 2 + 1),
    "groupId"    : Math.floor(Math.random() * 100 + 1),
    "measureDate": new Date(),
    "intVal"     : Math.floor(Math.random() * 2000000 - 1000000),
    "floatVal"   : Math.random() * 2000000 - 1000000
  });
  if (i % progressStep == 0) {
    print(i + ";" + ISODateString(new Date()));
  }
};
print("Finished at: " + Date());