velosurf.validation
Class Email

java.lang.Object
  velosurf.validation.FieldConstraint
      velosurf.validation.Email

public class Email
extends FieldConstraint

An 'email' constraint. Syntax is:

    <column type="email"/>
  

Or:

     <column>
       <email [dns-check="true | false"] [smtp-check="true | false" ] [message="error-message"]>
     </column>
   

Author:

Claude Brisson

Nested Class Summary

(package private) class

Email.FastTimeoutConnect A socket with short timeout.

Field Summary

private boolean	dnsCheck whether to check dns.
private boolean	smtpCheck whether to check smtp server.
private static java.util.regex.Pattern	validEmail valid email pattern.

Constructor Summary

Email()
Default constructor.

Email(boolean dnsCheck, boolean smtpCheck)
Constructor.

Method Summary

private boolean	checkDNS(java.lang.String hostname) check DNS.
private boolean	checkSMTP(java.lang.String user, java.lang.String hostname) Check SMTP server.
private java.util.List<java.lang.String>	resolveMXDNS(java.lang.String hostname) Resolve MX DNS.
java.lang.String	toString() return a string representation for this constraint.
boolean	validate(java.lang.Object data) Validate data against this constraint.

Methods inherited from class velosurf.validation.FieldConstraint

getMessage, setMessage, validate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

dnsCheck

private boolean dnsCheck

whether to check dns.

smtpCheck

private boolean smtpCheck

whether to check smtp server.

validEmail

private static java.util.regex.Pattern validEmail

valid email pattern.

Constructor Detail

Email

public Email()

Default constructor.

Email

public Email(boolean dnsCheck,
             boolean smtpCheck)

Constructor.

Parameters:

dnsCheck - whether to validate this email using a DNS query

smtpCheck - whether to validate this email using an STMP query

Method Detail

validate

public boolean validate(java.lang.Object data)

Validate data against this constraint.

Overrides:

validate in class FieldConstraint

Parameters:

data - data to validate

Returns:

whether data is valid

checkDNS

private boolean checkDNS(java.lang.String hostname)

check DNS.

Parameters:

hostname - hostname

Returns:

true if valid

resolveMXDNS

private java.util.List<java.lang.String> resolveMXDNS(java.lang.String hostname)

Resolve MX DNS.

Parameters:

hostname - hostname

Returns:

list of MXs

checkSMTP

private boolean checkSMTP(java.lang.String user,
                          java.lang.String hostname)

Check SMTP server.

Parameters:

user - username

hostname - hostname

Returns:

true if valid

toString

public java.lang.String toString()

return a string representation for this constraint.

Overrides:

toString in class java.lang.Object

Returns:

string