Examples with DatastorePersistentProperty com.google.cloud.spring.data.datastore.core.mapping.DatastorePersistentProperty used on opensource projects

Example 11 with DatastorePersistentProperty

use of com.google.cloud.spring.data.datastore.core.mapping.DatastorePersistentProperty in project spring-cloud-gcp by GoogleCloudPlatform.

the class PartTreeDatastoreQuery method applySelectWithFilter.

private void applySelectWithFilter(Object[] parameters, Builder builder) {
    Iterator it = Arrays.asList(parameters).iterator();
    Filter[] filters = this.filterParts.stream().map(part -> {
        // build properties chain for nested properties
        // if the property is not nested, the list would contain only one property
        List<DatastorePersistentProperty> propertiesChain = getPropertiesChain(part);
        String fieldName = propertiesChain.stream().map(DatastorePersistentProperty::getFieldName).collect(Collectors.joining("."));
        if (part.getType() == Part.Type.IS_NULL) {
            return PropertyFilter.isNull(fieldName);
        }
        BiFunction<String, Value, PropertyFilter> filterFactory = FILTER_FACTORIES.get(part.getType());
        if (filterFactory == null) {
            throw new DatastoreDataException("Unsupported predicate keyword: " + part.getType());
        }
        if (!it.hasNext()) {
            throw new DatastoreDataException("Too few parameters are provided for query method: " + getQueryMethod().getName());
        }
        Value convertedValue = convertParam(propertiesChain.get(propertiesChain.size() - 1), it.next());
        return filterFactory.apply(fieldName, convertedValue);
    }).toArray(Filter[]::new);
    builder.setFilter((filters.length > 1) ? CompositeFilter.and(filters[0], Arrays.copyOfRange(filters, 1, filters.length)) : filters[0]);
}