company.tap.gosellapi.internal.utils

Class DateValidator

java.lang.Object

company.tap.gosellapi.internal.utils.DateValidator

public class DateValidator
extends java.lang.Object

Class provided as a convenience to ExpirationDateEditText to make testing easier.

Field Summary

Fields

Modifier and Type	Field and Description
private static DateValidator	INSTANCE
static int	MAXIMUM_VALID_YEAR_DIFFERENCE Maximum amount of years in advance that a credit card expiration date should be trusted to be valid.
private java.util.Calendar	mCalendar

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	DateValidator(java.util.Calendar calendar) Used in tests to inject a custom Calendar to stabilize dates.

Method Summary

Modifier and Type	Method and Description
private int	getCurrentMonth() Calendar.MONTH is 0-prefixed.
private int	getCurrentTwoDigitYear() Calendar.YEAR is the full, 4-digit year.
static boolean	isValid(java.lang.String month, java.lang.String year) Helper for determining whether a date is a valid credit card expiry date.
protected boolean	isValidHelper(java.lang.String monthString, java.lang.String yearString) Is valid helper boolean.

Methods inherited from class java.lang.Object

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

Field Detail

MAXIMUM_VALID_YEAR_DIFFERENCE

public static final int MAXIMUM_VALID_YEAR_DIFFERENCE

Maximum amount of years in advance that a credit card expiration date should be trusted to be valid. This is mostly used if the current date is towards the end of the century and the expiration date is at the start of the following one.

Ex. Current year is 2099, Expiration date is "01/01". The YY is "less than" the current year, but since the difference is less than MAXIMUM_VALID_YEAR_DIFFERENCE, it should still be trusted to be valid client-side.

See Also:

Constant Field Values

INSTANCE

private static final DateValidator INSTANCE

mCalendar

private final java.util.Calendar mCalendar

Constructor Detail

DateValidator

protected DateValidator(java.util.Calendar calendar)

Used in tests to inject a custom Calendar to stabilize dates. Normal usage will just delegate to the actual date.

Parameters:

calendar - the calendar

Method Detail

isValid

public static boolean isValid(java.lang.String month,
                              java.lang.String year)

Helper for determining whether a date is a valid credit card expiry date.

Parameters:

month - Two-digit month

year - Two or four digit year

Returns:

Whether the date is a valid credit card expiry date.

isValidHelper

protected boolean isValidHelper(java.lang.String monthString,
                                java.lang.String yearString)

Is valid helper boolean.

Parameters:

monthString - the month string

yearString - the year string

Returns:

the boolean

getCurrentMonth

private int getCurrentMonth()

Calendar.MONTH is 0-prefixed. Add 1 to align it with visualized expiration dates.

getCurrentTwoDigitYear

private int getCurrentTwoDigitYear()

Calendar.YEAR is the full, 4-digit year. Take the trailing two digits to align it with visualized expiration dates.