Examples with Argument org.hl7.fhir.utilities.graphql.Argument used on opensource projects

Example 11 with Argument

use of org.hl7.fhir.utilities.graphql.Argument in project org.hl7.fhir.core by hapifhir.

the class GraphQLEngine method processValues.

private void processValues(Resource context, Selection sel, Property prop, ObjectValue target, List<Base> values, boolean extensionMode, boolean inheritedList, String suffix) throws EGraphQLException, FHIRException {
    boolean il = false;
    Argument arg = null;
    ExpressionNode expression = null;
    if (sel.getField().hasDirective("slice")) {
        Directive dir = sel.getField().directive("slice");
        String s = ((StringValue) dir.getArguments().get(0).getValues().get(0)).getValue();
        if (s.equals("$index"))
            expression = magicExpression;
        else
            expression = fpe.parse(s);
    }
    if (// special: instruction to drop this node...
    sel.getField().hasDirective("flatten"))
        il = prop.isList() && !sel.getField().hasDirective("first");
    else if (sel.getField().hasDirective("first")) {
        if (expression != null)
            throw new FHIRException("You cannot mix @slice and @first");
        arg = target.addField(sel.getField().getAlias() + suffix, listStatus(sel.getField(), inheritedList));
    } else if (expression == null)
        arg = target.addField(sel.getField().getAlias() + suffix, listStatus(sel.getField(), prop.isList() || inheritedList));
    int index = 0;
    for (Base value : values) {
        String ss = "";
        if (expression != null) {
            if (expression == magicExpression)
                ss = suffix + '.' + Integer.toString(index);
            else
                ss = suffix + '.' + fpe.evaluateToString(null, null, null, value, expression);
            if (!sel.getField().hasDirective("flatten"))
                arg = target.addField(sel.getField().getAlias() + suffix, listStatus(sel.getField(), prop.isList() || inheritedList));
        }
        if (value.isPrimitive() && !extensionMode) {
            if (!sel.getField().getSelectionSet().isEmpty())
                throw new EGraphQLException("Encountered a selection set on a scalar field type");
            processPrimitive(arg, value);
        } else {
            if (sel.getField().getSelectionSet().isEmpty())
                throw new EGraphQLException("No Fields selected on a complex object");
            if (arg == null)
                processObject(context, value, target, sel.getField().getSelectionSet(), il, ss);
            else {
                ObjectValue n = new ObjectValue();
                arg.addValue(n);
                processObject(context, value, n, sel.getField().getSelectionSet(), il, ss);
            }
        }
        if (sel.getField().hasDirective("first"))
            return;
        index++;
    }
}

Example 12 with Argument

use of org.hl7.fhir.utilities.graphql.Argument in project org.hl7.fhir.core by hapifhir.

the class GraphQLEngine method processCanonicalReference.

private void processCanonicalReference(Resource context, Base source, Field field, ObjectValue target, boolean inheritedList, String suffix) throws EGraphQLException, FHIRException {
    if (!(source instanceof CanonicalType))
        throw new EGraphQLException("Not done yet");
    if (services == null)
        throw new EGraphQLException("Resource Referencing services not provided");
    Reference ref = new Reference(source.primitiveValue());
    ReferenceResolution res = services.lookup(appInfo, context, ref);
    if (res != null) {
        if (targetTypeOk(field.getArguments(), res.getTarget())) {
            Argument arg = target.addField(field.getAlias() + suffix, listStatus(field, inheritedList));
            ObjectValue obj = new ObjectValue();
            arg.addValue(obj);
            processObject((Resource) res.getTargetContext(), (Base) res.getTarget(), obj, field.getSelectionSet(), inheritedList, suffix);
        }
    } else if (!hasArgument(field.getArguments(), "optional", "true"))
        throw new EGraphQLException("Unable to resolve reference to " + ref.getReference());
}

Example 13 with Argument

use of org.hl7.fhir.utilities.graphql.Argument in project org.hl7.fhir.core by hapifhir.

the class GraphQLEngine method processPrimitive.

private void processPrimitive(Argument arg, Base value) {
    String s = value.fhirType();
    if (s.equals("integer") || s.equals("decimal") || s.equals("unsignedInt") || s.equals("positiveInt"))
        arg.addValue(new NumberValue(value.primitiveValue()));
    else if (s.equals("boolean"))
        arg.addValue(new NameValue(value.primitiveValue()));
    else
        arg.addValue(new StringValue(value.primitiveValue()));
}

Example 14 with Argument

use of org.hl7.fhir.utilities.graphql.Argument in project org.hl7.fhir.core by hapifhir.

the class GraphQLEngine method processSearchSimple.

private void processSearchSimple(ObjectValue target, Field field, boolean inheritedList, String suffix) throws EGraphQLException, FHIRException {
    if (services == null)
        throw new EGraphQLException("Resource Referencing services not provided");
    List<IBaseResource> list = new ArrayList<>();
    services.listResources(appInfo, field.getName().substring(0, field.getName().length() - 4), field.getArguments(), list);
    Argument arg = null;
    ObjectValue obj = null;
    List<Resource> vl = filterResources(field.argument("fhirpath"), list);
    if (!vl.isEmpty()) {
        arg = target.addField(field.getAlias() + suffix, listStatus(field, true));
        for (Resource v : vl) {
            obj = new ObjectValue();
            arg.addValue(obj);
            processObject(v, v, obj, field.getSelectionSet(), inheritedList, suffix);
        }
    }
}

Example 15 with Argument

use of org.hl7.fhir.utilities.graphql.Argument in project org.hl7.fhir.core by hapifhir.

the class GraphQLEngine method processReference.

private void processReference(Resource context, Base source, Field field, ObjectValue target, boolean inheritedList, String suffix) throws EGraphQLException, FHIRException {
    if (!(source instanceof Reference))
        throw new EGraphQLException("Not done yet");
    if (services == null)
        throw new EGraphQLException("Resource Referencing services not provided");
    Reference ref = (Reference) source;
    ReferenceResolution res = services.lookup(appInfo, context, ref);
    if (res != null) {
        if (targetTypeOk(field.getArguments(), res.getTarget())) {
            Argument arg = target.addField(field.getAlias() + suffix, listStatus(field, inheritedList));
            ObjectValue obj = new ObjectValue();
            arg.addValue(obj);
            processObject((Resource) res.getTargetContext(), (Base) res.getTarget(), obj, field.getSelectionSet(), inheritedList, suffix);
        }
    } else if (!hasArgument(field.getArguments(), "optional", "true"))
        throw new EGraphQLException("Unable to resolve reference to " + ref.getReference());
}