/**
* Tests whether a short number matches a valid pattern. Note that this doesn't verify the number
* is actually in use, which is impossible to tell by just looking at the number itself.
*
* @param shortNumber the short number to check as a string
* @param regionDialingFrom the region from which the number is dialed
* @return whether the short number matches a valid pattern
*/
public boolean isValidShortNumber(String shortNumber, String regionDialingFrom)
{
PhoneMetadata phoneMetadata =
MetadataManager.getShortNumberMetadataForRegion(regionDialingFrom);
if (phoneMetadata == null)
{
return(false);
}
PhoneNumberDesc generalDesc = phoneMetadata.getGeneralDesc();
if (!generalDesc.hasNationalNumberPattern() ||
!phoneUtil.isNumberMatchingDesc(shortNumber, generalDesc))
{
return(false);
}
PhoneNumberDesc shortNumberDesc = phoneMetadata.getShortCode();
if (!shortNumberDesc.hasNationalNumberPattern())
{
logger.log(Level.WARNING, "No short code national number pattern found for region: " +
regionDialingFrom);
return(false);
}
return(phoneUtil.isNumberMatchingDesc(shortNumber, shortNumberDesc));
}
/**
* Check whether a short number is a possible number, given the number in the form of a string,
* and the region where the number is dialed from. This provides a more lenient check than
* {@link #isValidShortNumber}.
*
* @param shortNumber the short number to check as a string
* @param regionDialingFrom the region from which the number is dialed
* @return whether the number is a possible short number
*/
public boolean isPossibleShortNumber(String shortNumber, String regionDialingFrom)
{
PhoneMetadata phoneMetadata =
MetadataManager.getShortNumberMetadataForRegion(regionDialingFrom);
if (phoneMetadata == null)
{
return(false);
}
PhoneNumberDesc generalDesc = phoneMetadata.getGeneralDesc();
return(phoneUtil.isNumberPossibleForDesc(shortNumber, generalDesc));
}
