Examples with BooleanExpression com.querydsl.core.types.dsl.BooleanExpression used on opensource projects

Example 16 with BooleanExpression

use of com.querydsl.core.types.dsl.BooleanExpression in project Settler by EmhyrVarEmreis.

the class AbstractService method applyFilters.

private BooleanExpression applyFilters(String filtersJson, QEntity qObject, boolean isAnd) throws NoSuchFieldException, IllegalAccessException {
    BooleanExpressionWrapper pWrapper = new BooleanExpressionWrapper();
    if (isAnd) {
        pWrapper.predicate = qObject.isNotNull();
    } else {
        pWrapper.predicate = qObject.ne(qObject);
    }
    for (BooleanExpression preFilter : getPreFilters()) {
        pWrapper.predicate = pWrapper.predicate.and(preFilter);
    }
    if (filtersJson.length() == 0) {
        return pWrapper.predicate;
    }
    ListFilters filters;
    try {
        filters = new ObjectMapper().readValue(filtersJson, getListFilterClass());
        Stream.concat(Arrays.stream(filters.getClass().getDeclaredFields()), getExtendedFields(filters)).filter(field -> extractValueFromField(field, filters) != null).forEach(field -> {
            AbstractServiceSingleFilter abstractServiceSingleFilter = AbstractServiceSingleFilter.getAbstractServiceSingleFilterClassFromField(field, singleFiltersPack);
            if (abstractServiceSingleFilter == null) {
                getAbstractServiceSingleFilters().stream().filter(filter -> filter.isApplicable(extractValueFromField(field, filters), extractValueFromField(extractFieldFromObject(qObject, field.getName()), qObject))).findFirst().ifPresent(filter -> pWrapper.predicate = apply(pWrapper, filter, field, filters, qObject, isAnd));
            } else {
                pWrapper.predicate = apply(pWrapper, abstractServiceSingleFilter, field, filters, qObject, isAnd);
            }
        });
    } catch (IOException e) {
        e.printStackTrace();
    }
    return pWrapper.predicate;
}