Examples with Expressions com.b2international.index.query.Expressions used on opensource projects

Example 1 with Expressions

use of com.b2international.index.query.Expressions in project snow-owl by b2ihealthcare.

the class SnomedEclRefinementEvaluator method evalRefinement.

/**
 * Evaluates an {@link AttributeConstraint} refinement on the given focusConceptId set on the given {@link BranchContext}.
 * Grouped parameter can
 */
private Promise<Collection<Property>> evalRefinement(final BranchContext context, final AttributeConstraint refinement, final boolean grouped, final Set<String> focusConceptIds) {
    final Comparison comparison = refinement.getComparison();
    final Collection<String> typeConceptFilter = evalToConceptIds(context, refinement.getAttribute(), expressionForm).getSync(1, TimeUnit.MINUTES);
    if (comparison instanceof AttributeComparison) {
        // resolve non-* focusConcept ECLs to IDs, so we can filter relationships by source/destination
        // filterByType and filterByDestination accepts ECL expressions as well, so serialize them into ECL and pass as String when required
        // if reversed refinement, then we are interested in the destinationIds otherwise we need the sourceIds
        final Collection<String> destinationConceptFilter = evalToConceptIds(context, ((AttributeComparison) comparison).getValue(), expressionForm).getSync(1, TimeUnit.MINUTES);
        final Collection<String> focusConceptFilter = refinement.isReversed() ? destinationConceptFilter : focusConceptIds;
        final Collection<String> valueConceptFilter = refinement.isReversed() ? focusConceptIds : destinationConceptFilter;
        return evalStatements(context, focusConceptFilter, typeConceptFilter, valueConceptFilter, grouped, expressionForm);
    } else if (comparison instanceof DataTypeComparison) {
        if (refinement.isReversed()) {
            throw new BadRequestException("Reversed flag is not supported in data type based comparison (string/numeric)");
        } else {
            final Promise<Collection<Property>> statementsWithValue = evalStatementsWithValue(context, focusConceptIds, typeConceptFilter, (DataTypeComparison) comparison);
            final Promise<Collection<Property>> members = evalMembers(context, focusConceptIds, typeConceptFilter, (DataTypeComparison) comparison);
            return Promise.all(statementsWithValue, members).then(results -> {
                final Collection<Property> s = (Collection<Property>) results.get(0);
                final Collection<Property> m = (Collection<Property>) results.get(1);
                return FluentIterable.concat(s, m).toSet();
            });
        }
    } else {
        return SnomedEclEvaluationRequest.throwUnsupported(comparison);
    }
}