public void prepare() {
id = getSequence();
++id;
imageId = ScaleFactors.events + id;
ThreadResource tr = ThreadResource.getInstance();
Random r = tr.getRandom();
StringBuilder b = tr.getBuffer();
fields[0] = UserName.getUserName(id);
fields[1] = String.valueOf(id);
fields[2] = RandomUtil.randomName(r, b, 2, 12).toString();
b.setLength(0);
fields[3] = RandomUtil.randomName(r, b, 5, 15).toString();