Examples with PathEngineException org.hl7.fhir.exceptions.PathEngineException used on opensource projects

Example 16 with PathEngineException

use of org.hl7.fhir.exceptions.PathEngineException in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method opGreater.

private List<Base> opGreater(List<Base> left, List<Base> right) throws PathEngineException {
    if (left.size() == 1 && right.size() == 1 && left.get(0).isPrimitive() && right.get(0).isPrimitive()) {
        Base l = left.get(0);
        Base r = right.get(0);
        if (l.hasType("string") && r.hasType("string"))
            return makeBoolean(l.primitiveValue().compareTo(r.primitiveValue()) > 0);
        else if ((l.hasType("integer", "decimal")) && (r.hasType("integer", "decimal")))
            return makeBoolean(new Double(l.primitiveValue()) > new Double(r.primitiveValue()));
        else if ((l.hasType("date", "dateTime", "instant")) && (r.hasType("date", "dateTime", "instant")))
            return makeBoolean(l.primitiveValue().compareTo(r.primitiveValue()) > 0);
        else if ((l.hasType("time")) && (r.hasType("time")))
            return makeBoolean(l.primitiveValue().compareTo(r.primitiveValue()) > 0);
    } else if (left.size() == 1 && right.size() == 1 && left.get(0).fhirType().equals("Quantity") && right.get(0).fhirType().equals("Quantity")) {
        List<Base> lUnit = left.get(0).listChildrenByName("unit");
        List<Base> rUnit = right.get(0).listChildrenByName("unit");
        if (Base.compareDeep(lUnit, rUnit, true)) {
            return opGreater(left.get(0).listChildrenByName("value"), right.get(0).listChildrenByName("value"));
        } else {
            throw new PathEngineException("Canonical Comparison isn't done yet");
        }
    }
    return new ArrayList<Base>();
}

Example 17 with PathEngineException

use of org.hl7.fhir.exceptions.PathEngineException in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method funcAll.

private List<Base> funcAll(ExecutionContext context, List<Base> focus, ExpressionNode exp) throws PathEngineException {
    if (exp.getParameters().size() == 1) {
        List<Base> result = new ArrayList<Base>();
        List<Base> pc = new ArrayList<Base>();
        boolean all = true;
        for (Base item : focus) {
            pc.clear();
            pc.add(item);
            if (!convertToBoolean(execute(changeThis(context, item), pc, exp.getParameters().get(0), false))) {
                all = false;
                break;
            }
        }
        result.add(new BooleanType(all));
        return result;
    } else {
        // (exp.getParameters().size() == 0) {
        List<Base> result = new ArrayList<Base>();
        boolean all = true;
        for (Base item : focus) {
            boolean v = false;
            if (item instanceof BooleanType) {
                v = ((BooleanType) item).booleanValue();
            } else
                v = item != null;
            if (!v) {
                all = false;
                break;
            }
        }
        result.add(new BooleanType(all));
        return result;
    }
}

Example 18 with PathEngineException

use of org.hl7.fhir.exceptions.PathEngineException in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method funcExtension.

private List<Base> funcExtension(ExecutionContext context, List<Base> focus, ExpressionNode exp) throws PathEngineException {
    List<Base> result = new ArrayList<Base>();
    List<Base> nl = execute(context, focus, exp.getParameters().get(0), true);
    String url = nl.get(0).primitiveValue();
    for (Base item : focus) {
        List<Base> ext = new ArrayList<Base>();
        getChildrenByName(item, "extension", ext);
        getChildrenByName(item, "modifierExtension", ext);
        for (Base ex : ext) {
            List<Base> vl = new ArrayList<Base>();
            getChildrenByName(ex, "url", vl);
            if (convertToString(vl).equals(url))
                result.add(ex);
        }
    }
    return result;
}

Example 19 with PathEngineException

use of org.hl7.fhir.exceptions.PathEngineException in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method opTimes.

private List<Base> opTimes(List<Base> left, List<Base> right) throws PathEngineException {
    if (left.size() == 0)
        throw new PathEngineException("Error performing *: left operand has no value");
    if (left.size() > 1)
        throw new PathEngineException("Error performing *: left operand has more than one value");
    if (!left.get(0).isPrimitive())
        throw new PathEngineException(String.format("Error performing +: left operand has the wrong type (%s)", left.get(0).fhirType()));
    if (right.size() == 0)
        throw new PathEngineException("Error performing *: right operand has no value");
    if (right.size() > 1)
        throw new PathEngineException("Error performing *: right operand has more than one value");
    if (!right.get(0).isPrimitive())
        throw new PathEngineException(String.format("Error performing *: right operand has the wrong type (%s)", right.get(0).fhirType()));
    List<Base> result = new ArrayList<Base>();
    Base l = left.get(0);
    Base r = right.get(0);
    if (l.hasType("integer") && r.hasType("integer"))
        result.add(new IntegerType(Integer.parseInt(l.primitiveValue()) * Integer.parseInt(r.primitiveValue())));
    else if (l.hasType("decimal", "integer") && r.hasType("decimal", "integer"))
        result.add(new DecimalType(new BigDecimal(l.primitiveValue()).multiply(new BigDecimal(r.primitiveValue()))));
    else
        throw new PathEngineException(String.format("Error performing *: left and right operand have incompatible or illegal types (%s, %s)", left.get(0).fhirType(), right.get(0).fhirType()));
    return result;
}

Example 20 with PathEngineException

use of org.hl7.fhir.exceptions.PathEngineException in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method evaluate.

/**
 * evaluate a path and return the matching elements
 *
 * @param base - the object against which the path is being evaluated
 * @param path - the FHIR Path statement to use
 * @return
 * @throws PathEngineException
 * @throws FHIRLexerException
 * @
 * @
 */
public List<Base> evaluate(Object appContext, Resource resource, Base base, String path) throws PathEngineException, FHIRLexerException {
    ExpressionNode exp = parse(path);
    List<Base> list = new ArrayList<Base>();
    if (base != null)
        list.add(base);
    log = new StringBuilder();
    return execute(new ExecutionContext(appContext, resource, base, base), list, exp, true);
}