/**
* Returns an exception string for a wrong key.
*
* @param key property key
* @param found found value
* @param allowed allowed values
* @return exception
* @throws SerializerException serializer exception
*/
public static SerializerException error(
final Object key, final String found, final String... allowed) throws SerializerException {
final TokenBuilder tb = new TokenBuilder();
tb.addExt(SERVAL, key, allowed[0]);
for (int a = 1; a < allowed.length; ++a) tb.addExt(SERVAL2, allowed[a]);
tb.addExt(SERVAL3, found);
throw SERANY.thrwSerial(tb);
}
/**
* Sends an event to the registered sessions.
*
* @param ctx query context
* @return event result
* @throws QueryException query exception
*/
private Item event(final QueryContext ctx) throws QueryException {
final byte[] name = checkStr(expr[0], ctx);
final ArrayOutput ao = new ArrayOutput();
try {
// run serialization
final Serializer ser = Serializer.get(ao, ctx.serProp(true));
final ValueIter ir = ctx.value(expr[1]).iter();
for (Item it; (it = ir.next()) != null; ) it.serialize(ser);
ser.close();
} catch (final SerializerException ex) {
throw ex.getCause(input);
} catch (final IOException ex) {
SERANY.thrw(input, ex);
}
// throw exception if event is unknown
if (!ctx.context.events.notify(ctx.context, name, ao.toArray())) {
NOEVENT.thrw(input, name);
}
return null;
}