feat: expand struts demo lab

web/WEB-INF/classes/com/demo/action/ValidationAction.java

@@ -0,0 +1,88 @@
+package com.demo.action;
+
+import com.opensymphony.xwork2.ActionSupport;
+
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class ValidationAction extends ActionSupport {
+
+    private static final DateTimeFormatter TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+
+    private String username;
+    private String email;
+    private Integer age;
+    private String bio;
+    private String scoreBand;
+    private String submittedAt;
+
+    @Override
+    public String execute() {
+        username = normalize(username);
+        email = normalize(email);
+        bio = normalize(bio);
+        scoreBand = age >= 30 ? "Mid-career operator profile" : "Early-career operator profile";
+        submittedAt = LocalDateTime.now().format(TIME_FORMATTER);
+        return SUCCESS;
+    }
+
+    @Override
+    public void validate() {
+        if (username == null || username.trim().length() < 3 || username.trim().length() > 20) {
+            addFieldError("username", "Username must be between 3 and 20 characters.");
+        }
+        if (email == null || !email.contains("@") || email.indexOf('@') == email.length() - 1) {
+            addFieldError("email", "Enter a valid email address.");
+        }
+        if (age == null || age < 18 || age > 60) {
+            addFieldError("age", "Age must be between 18 and 60.");
+        }
+        if (bio != null && bio.trim().length() > 240) {
+            addFieldError("bio", "Bio must stay under 240 characters.");
+        }
+    }
+
+    private String normalize(String value) {
+        return value == null ? null : value.trim();
+    }
+
+    public String getUsername() {
+        return username;
+    }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
+
+    public String getEmail() {
+        return email;
+    }
+
+    public void setEmail(String email) {
+        this.email = email;
+    }
+
+    public Integer getAge() {
+        return age;
+    }
+
+    public void setAge(Integer age) {
+        this.age = age;
+    }
+
+    public String getBio() {
+        return bio;
+    }
+
+    public void setBio(String bio) {
+        this.bio = bio;
+    }
+
+    public String getScoreBand() {
+        return scoreBand;
+    }
+
+    public String getSubmittedAt() {
+        return submittedAt;
+    }
+}