I have an entity with a phoneNumber field. The format of this phone
number is +9912345678..., the international number notation.
What I want to do is to have a text field that accepts phonenumbers in
different formats. For example 0612345678, "06 12345678" but also
+31612345678. Based on the locale I want to 'normalize' 0612345678 to
+3112345678.
I would like people to be able to enter a number in any format in a
form field but have the model behind that to be updated to the
international notation. (+NNNNNNNNNNNN)
I wrote a simple SimpleConverterAdapter implementation:
public class PhoneNumberConverter extends SimpleConverterAdapter
{
public String toString(Object value)
{
if (value instanceof String)
{
String phoneNumber = (String) value;
// Always match on an international phone number
if (internationalPhoneNumberPattern.matcher(phoneNumber).matches())
{
return phoneNumber;
}
// Recognize dutch mobile numbers (06NNNNNNNN)
if (dutchPhoneNumber.matcher(phoneNumber).matches()) {
return "+31" + phoneNumber.substring(1);
}
}
// If we cannot convert the object then throw an
IllegalArgumentException.
throw new IllegalArgumentException("Cannot convert non String objects");
}
public Object toObject(String value)
{
return value == null ? null : value.toString();
}
}
but the behaviour is very odd. When I enter '0612345678' in the form
and submit it, I get an error message saying that 0612345678 is not a
valid phone number (this is done by the PhoneNumberValidator) but the
phone number form field is updated to +316512345678. When I press
submit again then all is ok of course.
I'm not sure what I'm doing wrong here. I simply want to accept input
in several formats.
S.
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