001/*
002 * #%L
003 * HAPI FHIR - Core Library
004 * %%
005 * Copyright (C) 2014 - 2025 Smile CDR, Inc.
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 *      http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package ca.uhn.fhir.context;
021
022import ca.uhn.fhir.model.api.IDatatype;
023import ca.uhn.fhir.model.api.IResource;
024import ca.uhn.fhir.model.api.annotation.Child;
025import ca.uhn.fhir.model.api.annotation.Description;
026import ca.uhn.fhir.model.primitive.XhtmlDt;
027import org.hl7.fhir.instance.model.api.IBase;
028import org.hl7.fhir.instance.model.api.IBaseDatatype;
029import org.hl7.fhir.instance.model.api.IBaseReference;
030
031import java.lang.reflect.Field;
032import java.util.ArrayList;
033import java.util.Comparator;
034import java.util.List;
035import java.util.Map;
036
037public class RuntimeChildAny extends RuntimeChildChoiceDefinition {
038
039        public RuntimeChildAny(
040                        Field theField, String theElementName, Child theChildAnnotation, Description theDescriptionAnnotation) {
041                super(theField, theElementName, theChildAnnotation, theDescriptionAnnotation);
042        }
043
044        @Override
045        void sealAndInitialize(
046                        FhirContext theContext,
047                        Map<Class<? extends IBase>, BaseRuntimeElementDefinition<?>> theClassToElementDefinitions) {
048                List<Class<? extends IBase>> choiceTypes = new ArrayList<>();
049                List<Class<? extends IBase>> specializationChoiceTypes = new ArrayList<>();
050
051                for (Class<? extends IBase> next : theClassToElementDefinitions.keySet()) {
052                        if (next.equals(XhtmlDt.class)) {
053                                continue;
054                        }
055
056                        boolean isSpecialization = false;
057                        BaseRuntimeElementDefinition<?> nextDef = theClassToElementDefinitions.get(next);
058                        if (nextDef instanceof IRuntimeDatatypeDefinition) {
059                                if (((IRuntimeDatatypeDefinition) nextDef).isSpecialization()) {
060                                        /*
061                                         * Things like BoundCodeDt shoudn't be considered as valid options for an "any" choice, since
062                                         * we'll already have CodeDt as an option
063                                         */
064                                        isSpecialization = true;
065                                }
066                        }
067
068                        if (IResource.class.isAssignableFrom(next)
069                                        || IDatatype.class.isAssignableFrom(next)
070                                        || IBaseDatatype.class.isAssignableFrom(next)
071                                        || IBaseReference.class.isAssignableFrom(next)) {
072                                if (isSpecialization) {
073                                        specializationChoiceTypes.add(next);
074                                } else {
075                                        choiceTypes.add(next);
076                                }
077                        }
078                }
079
080                choiceTypes.sort(new ResourceTypeNameComparator());
081                specializationChoiceTypes.sort(new ResourceTypeNameComparator());
082
083                setChoiceTypes(choiceTypes, specializationChoiceTypes);
084
085                super.sealAndInitialize(theContext, theClassToElementDefinitions);
086        }
087
088        private static class ResourceTypeNameComparator implements Comparator<Class<?>> {
089                @Override
090                public int compare(Class<?> theO1, Class<?> theO2) {
091                        boolean o1res = IResource.class.isAssignableFrom(theO1);
092                        boolean o2res = IResource.class.isAssignableFrom(theO2);
093                        if (o1res && o2res) {
094                                return theO1.getSimpleName().compareTo(theO2.getSimpleName());
095                        } else if (o1res) {
096                                return -1;
097                        } else if (!o2res) {
098                                return 0;
099                        } else {
100                                return 1;
101                        }
102                }
103        }
104}