001/*
002 * #%L
003 * HAPI FHIR - Core Library
004 * %%
005 * Copyright (C) 2014 - 2023 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 java.lang.reflect.Field;
023import java.lang.reflect.Modifier;
024import java.util.Collections;
025import java.util.Map;
026import java.util.Set;
027
028import org.hl7.fhir.instance.model.api.IBase;
029
030import ca.uhn.fhir.model.api.annotation.Child;
031import ca.uhn.fhir.model.api.annotation.Description;
032import org.slf4j.Logger;
033import org.slf4j.LoggerFactory;
034
035public abstract class BaseRuntimeChildDatatypeDefinition extends BaseRuntimeDeclaredChildDefinition {
036        Logger ourLog = LoggerFactory.getLogger(BaseRuntimeChildDatatypeDefinition.class);
037
038        private Class<? extends IBase> myDatatype;
039
040        private BaseRuntimeElementDefinition<?> myElementDefinition;
041
042        public BaseRuntimeChildDatatypeDefinition(Field theField, String theElementName, Child theChildAnnotation, Description theDescriptionAnnotation, Class<? extends IBase> theDatatype) {
043                super(theField, theChildAnnotation, theDescriptionAnnotation, theElementName);
044                // should use RuntimeChildAny
045                assert Modifier.isInterface(theDatatype.getModifiers()) == false : "Type of " + theDatatype + " shouldn't be here";
046                assert Modifier.isAbstract(theDatatype.getModifiers()) == false : "Type of " + theDatatype + " shouldn't be here";
047                myDatatype = theDatatype;
048        }
049
050        /**
051         * If this child has a bound type, this method will return the Enum type that
052         * it is bound to. Otherwise, will return <code>null</code>.
053         */
054        public Class<? extends Enum<?>> getBoundEnumType() {
055                return null;
056        }
057
058        @Override
059        public BaseRuntimeElementDefinition<?> getChildByName(String theName) {
060                if (getElementName().equals(theName)) {
061                        return myElementDefinition;
062                }
063                return null;
064        }
065
066        @Override
067        public BaseRuntimeElementDefinition<?> getChildElementDefinitionByDatatype(Class<? extends IBase> theDatatype) {
068                Class<?> nextType = theDatatype;
069                while (nextType.equals(Object.class) == false) {
070                        if (myDatatype.equals(nextType)) {
071                                return myElementDefinition;
072                        }
073                        nextType = nextType.getSuperclass();
074                }
075                return null;
076        }
077
078        @Override
079        public String getChildNameByDatatype(Class<? extends IBase> theDatatype) {
080                Class<?> nextType = theDatatype;
081                while (nextType.equals(Object.class) == false) {
082                        if (myDatatype.equals(nextType)) {
083                                return getElementName();
084                        }
085                        nextType = nextType.getSuperclass();
086                }
087                return null;
088        }
089
090        public Class<? extends IBase> getDatatype() {
091                return myDatatype;
092        }
093
094        @Override
095        public Set<String> getValidChildNames() {
096                return Collections.singleton(getElementName());
097        }
098
099        @Override
100        void sealAndInitialize(FhirContext theContext, Map<Class<? extends IBase>, BaseRuntimeElementDefinition<?>> theClassToElementDefinitions) {
101                myElementDefinition = theClassToElementDefinitions.get(getDatatype());
102                if (myElementDefinition == null) {
103                        myElementDefinition = theContext.getElementDefinition(getDatatype());
104                }
105                assert myElementDefinition != null : "Unknown type: " + getDatatype();
106        }
107
108        @Override
109        public String toString() {
110                return getClass().getSimpleName() + "[" + getElementName() + "]";
111        }
112
113}