How to limit number of logins per day?

Question

We have a custom web application (WebAS 6.20) used by people and automated systems. Each user has his own login, and some of these automated systems sometimes produce heavy load because they log into system too often.
Is there an easy way to:
1) limit number of logins to, say, 1000 per day and when this limit is reached - do not allow this user to login till midnight
OR
2) dedicate one of the processes to the specific user
thanks in advance

Answer 1

extend PlainDocument class to restrict the number of characters per line.
Set this class as model to TextArea.
Below is a class which does this. May be its useful
import javax.swing.*;
import javax.swing.text.*;
import java.awt.*;
public class FixedNumericDocument extends PlainDocument {
private int maxLength = 9999;
private String max="";
public FixedNumericDocument(int maxLength) {
super();
this.maxLength = maxLength;
//this is where we'll control all input to our document.
//If the text that is being entered passes our criteria, then we'll just call
//super.insertString(...)
public void insertString(int offset, String str, AttributeSet attr)
throws BadLocationException {
if (getLength() + str.length() > maxLength) {
return;
else {
try {
//check if str is numeric only
int value = Integer.parseInt(str);
//if we get here then str contains only numbers
//chk if it is less than 65535 so that it can be inserted
super.insertString(offset, str, attr);
catch(NumberFormatException exp) {
return;
return;