public PersonIdentifier getGlobalIdentifierById(PersonIdentifier personIdentifier) {
ValidationService validationService = Context.getValidationService();
validationService.validate(personIdentifier);
GlobalIdentifier globalIdentifier = Context.getConfiguration().getGlobalIdentifier();
if (!globalIdentifier.isAssignGlobalIdentifier()) {
log.warn("The system is not configured to assign global identifiers.");
return null;
}
IdentifierDomain globalDomain = globalIdentifier.getIdentifierDomain();
// Check to see if the person already has a global identifier
Person person = personDao.getPersonById(personIdentifier);
if (person != null) {
for (PersonIdentifier identifier : person.getPersonIdentifiers()) {
IdentifierDomain identifierDomain = identifier.getIdentifierDomain();
if (identifierDomain != null && identifierDomain.equals(globalDomain)) {
if (log.isTraceEnabled()) {
log.trace("Person has a global identifier assigned: " + identifier);
}
return identifier;
}
}
}
return null;
}
