protected Operation exec(Prolog engine, UserIdentity userId) throws PrologException {
engine.setB0();
Term a1 = arg1.dereference();
Term a2 = arg2.dereference();
Term a3 = arg3.dereference();
Term idTerm;
Term nameTerm = Prolog.Nil;
Term emailTerm = Prolog.Nil;
Account.Id id = userId.getAccount();
if (id == null) {
idTerm = anonymous;
} else {
idTerm = new IntegerTerm(id.get());
}
String name = userId.getName();
if (name != null && !name.equals("")) {
nameTerm = SymbolTerm.create(name);
}
String email = userId.getEmail();
if (email != null && !email.equals("")) {
emailTerm = SymbolTerm.create(email);
}
if (!a1.unify(new StructureTerm(user, idTerm), engine.trail)) {
return engine.fail();
}
if (!a2.unify(nameTerm, engine.trail)) {
return engine.fail();
}
if (!a3.unify(emailTerm, engine.trail)) {
return engine.fail();
}
return cont;
}
private AuthResult byAccountId(final HttpServletResponse rsp, final String idStr) {
final Account.Id id;
try {
id = Account.Id.parse(idStr);
} catch (NumberFormatException nfe) {
return null;
}
try {
final ReviewDb db = schema.open();
try {
return auth(db.accounts().get(id));
} finally {
db.close();
}
} catch (OrmException e) {
getServletContext().log("cannot query database", e);
return null;
}
}