Expert Spring MVC and Web Flow

public void setAsText(String text) throws IllegalArgumentException {

if (! StringUtils.hasText(text)) {

throw new IllegalArgumentException("text must not be empty or null");

}

Matcher matcher = pattern.matcher(text);

if (matcher.matches()) {

PhoneNumber phoneNumber = new PhoneNumber();

phoneNumber.setAreaCode(matcher.group(1));

phoneNumber.setPrefix(matcher.group(2));

phoneNumber.setSuffix(matcher.group(3));

setValue(phoneNumber);

} else {

throw new IllegalArgumentException(text +

" does not match pattern " + pattern);

}

}

@Override

public String getAsText() {

return getValue().toString();

}

}

The HTML form with a phone number input field would look something like that in

Listing 6-34.

Listing 6-34.PhoneNumber HTML Form

<form>

<p>

Phone Number: <input type="text" name="phoneNumber" /> (XXX) XXX-XXXX

</p>

<p><input type="submit" /></p>

</form>

The following unit test, Listing 6-35, simulates the HTTP request with a value of (222)

333-4444as the user’s phone number.

Listing 6-35.PhoneNumberEditor Binding Unit Test

protected void setUp() throws Exception {

bean = new PhoneNumberCommand();

request = new MockHttpServletRequest();

binder = new ServletRequestDataBinder(bean, "bean");

144 CHAPTER 6 ■THE CONTROLLER MENAGERIE