/**
* Tests whether a short number matches a valid pattern in a region. 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 bool isValidShortNumberForRegion(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 when dialled from a region, 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 #isValidShortNumberForRegion}.
*
* @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 bool isPossibleShortNumberForRegion(String shortNumber, String regionDialingFrom)
{
PhoneMetadata phoneMetadata =
MetadataManager.getShortNumberMetadataForRegion(regionDialingFrom);
if (phoneMetadata == null)
{
return(false);
}
PhoneNumberDesc generalDesc = phoneMetadata.getGeneralDesc();
return(phoneUtil.isNumberPossibleForDesc(shortNumber, generalDesc));
}
/**
* Check whether a short number is a possible number. If a country calling code is shared by
* multiple regions, this returns true if it's possible in any of them. This provides a more
* lenient check than {@link #isValidShortNumber}. See {@link
* #isPossibleShortNumberForRegion(String, String)} for details.
*
* @param number the short number to check
* @return whether the number is a possible short number
*/
public bool isPossibleShortNumber(PhoneNumber number)
{
List <String> regionCodes = phoneUtil.getRegionCodesForCountryCode(number.getCountryCode());
String shortNumber = phoneUtil.getNationalSignificantNumber(number);
foreach (String region in regionCodes)
{
PhoneMetadata phoneMetadata = MetadataManager.getShortNumberMetadataForRegion(region);
if (phoneUtil.isNumberPossibleForDesc(shortNumber, phoneMetadata.getGeneralDesc()))
{
return(true);
}
}
return(false);
}
