Examples with MetaHolder org.openremote.model.value.MetaHolder used on opensource projects

Example 1 with MetaHolder

use of org.openremote.model.value.MetaHolder in project openremote by openremote.

the class AssetQueryPredicate method asPredicate.

@SuppressWarnings("unchecked")
public static Predicate<AssetState<?>> asPredicate(Supplier<Long> currentMillisProducer, LogicGroup<AttributePredicate> condition) {
    if (groupIsEmpty(condition)) {
        return as -> true;
    }
    LogicGroup.Operator operator = condition.operator == null ? LogicGroup.Operator.AND : condition.operator;
    List<Predicate<AssetState<?>>> assetStatePredicates = new ArrayList<>();
    if (condition.getItems().size() > 0) {
        condition.getItems().stream().forEach(p -> {
            assetStatePredicates.add((Predicate<AssetState<?>>) (Predicate) asPredicate(currentMillisProducer, p));
            AtomicReference<Predicate<AssetState<?>>> metaPredicate = new AtomicReference<>(nameValueHolder -> true);
            AtomicReference<Predicate<AssetState<?>>> oldValuePredicate = new AtomicReference<>(value -> true);
            if (p.meta != null) {
                final Predicate<NameValueHolder<?>> innerMetaPredicate = Arrays.stream(p.meta).map(metaPred -> asPredicate(currentMillisProducer, metaPred)).reduce(x -> true, Predicate::and);
                metaPredicate.set(assetState -> {
                    MetaMap metaItems = ((MetaHolder) assetState).getMeta();
                    return metaItems.stream().anyMatch(metaItem -> innerMetaPredicate.test(assetState));
                });
                assetStatePredicates.add(metaPredicate.get());
            }
            if (p.previousValue != null) {
                Predicate<Object> innerOldValuePredicate = p.previousValue.asPredicate(currentMillisProducer);
                oldValuePredicate.set(nameValueHolder -> innerOldValuePredicate.test((nameValueHolder).getOldValue()));
                assetStatePredicates.add(oldValuePredicate.get());
            }
        });
    }
    if (condition.groups != null && condition.groups.size() > 0) {
        assetStatePredicates.addAll(condition.groups.stream().map(c -> asPredicate(currentMillisProducer, c)).collect(Collectors.toList()));
    }
    return asPredicate(assetStatePredicates, operator);
}