Examples with Base org.hl7.fhir.dstu2.model.Base used on opensource projects

Example 76 with Base

use of org.hl7.fhir.dstu2.model.Base in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method funcSelect.

private List<Base> funcSelect(ExecutionContext context, List<Base> focus, ExpressionNode exp) throws PathEngineException {
    List<Base> result = new ArrayList<Base>();
    List<Base> pc = new ArrayList<Base>();
    for (Base item : focus) {
        pc.clear();
        pc.add(item);
        result.addAll(execute(changeThis(context, item), pc, exp.getParameters().get(0), true));
    }
    return result;
}

Example 77 with Base

use of org.hl7.fhir.dstu2.model.Base in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method opLessOrEqual.

private List<Base> opLessOrEqual(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> lUnits = left.get(0).listChildrenByName("unit");
        String lunit = lUnits.size() == 1 ? lUnits.get(0).primitiveValue() : null;
        List<Base> rUnits = right.get(0).listChildrenByName("unit");
        String runit = rUnits.size() == 1 ? rUnits.get(0).primitiveValue() : null;
        if ((lunit == null && runit == null) || lunit.equals(runit)) {
            return opLessOrEqual(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 78 with Base

use of org.hl7.fhir.dstu2.model.Base in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method convertToString.

/**
 * worker routine for converting a set of objects to a string representation
 *
 * @param items - result from @evaluate
 * @return
 */
public String convertToString(List<Base> items) {
    StringBuilder b = new StringBuilder();
    boolean first = true;
    for (Base item : items) {
        if (first)
            first = false;
        else
            b.append(',');
        b.append(convertToString(item));
    }
    return b.toString();
}

Example 79 with Base

use of org.hl7.fhir.dstu2.model.Base in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method opMod.

private List<Base> opMod(List<Base> left, List<Base> right) throws PathEngineException {
    if (left.size() == 0)
        throw new PathEngineException("Error performing mod: left operand has no value");
    if (left.size() > 1)
        throw new PathEngineException("Error performing mod: left operand has more than one value");
    if (!left.get(0).isPrimitive())
        throw new PathEngineException(String.format("Error performing mod: left operand has the wrong type (%s)", left.get(0).fhirType()));
    if (right.size() == 0)
        throw new PathEngineException("Error performing mod: right operand has no value");
    if (right.size() > 1)
        throw new PathEngineException("Error performing mod: right operand has more than one value");
    if (!right.get(0).isPrimitive())
        throw new PathEngineException(String.format("Error performing mod: 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")) {
        Decimal d1;
        try {
            d1 = new Decimal(l.primitiveValue());
            Decimal d2 = new Decimal(r.primitiveValue());
            result.add(new DecimalType(d1.modulo(d2).asDecimal()));
        } catch (UcumException e) {
            throw new PathEngineException(e);
        }
    } else
        throw new PathEngineException(String.format("Error performing mod: left and right operand have incompatible or illegal types (%s, %s)", left.get(0).fhirType(), right.get(0).fhirType()));
    return result;
}

Example 80 with Base

use of org.hl7.fhir.dstu2.model.Base in project org.hl7.fhir.core by hapifhir.

the class FHIRPathEngine method funcWhere.

private List<Base> funcWhere(ExecutionContext context, List<Base> focus, ExpressionNode exp) throws PathEngineException {
    List<Base> result = new ArrayList<Base>();
    List<Base> pc = new ArrayList<Base>();
    for (Base item : focus) {
        pc.clear();
        pc.add(item);
        if (convertToBoolean(execute(changeThis(context, item), pc, exp.getParameters().get(0), true)))
            result.add(item);
    }
    return result;
}