PasswordLockoutRequirement implementation

PasswordLockoutRequirement.java

@@ -0,0 +1,35 @@
+import java.util.HashMap;
+import java.util.Map;
+
+public class PasswordLockoutRequirement extends Requirement {
+    private static final int MAX_FAILED_ATTEMPTS = 5;
+    private final String username;
+    private final Map<String, Integer> failedAttempts = new HashMap<>();
+
+    public PasswordLockoutRequirement(String username) {
+        this.username = username;
+    }
+
+    public void recordFailedAttempt() {
+        int currentAttempts = failedAttempts.getOrDefault(username, 0);
+        failedAttempts.put(username, currentAttempts + 1);
+    }
+
+    public void resetFailedAttempts() {
+        failedAttempts.remove(username);
+    }
+
+    @Override
+    public CheckStatus check() {
+        int attempts = failedAttempts.getOrDefault(username, 0);
+
+        if (attempts >= MAX_FAILED_ATTEMPTS) {
+            System.out.println("The account is locked due to too many failed login attempts.");
+            return CheckStatus.FAIL;
+        } else {
+            int attemptsLeft = MAX_FAILED_ATTEMPTS - attempts;
+            System.out.println("The account is open. After " + attemptsLeft + " failed attempts it will become locked");
+            return CheckStatus.PASS;
+        }
+    }
+}