001package ca.uhn.fhir.context;
002
003/*
004 * #%L
005 * HAPI FHIR - Core Library
006 * %%
007 * Copyright (C) 2014 - 2021 Smile CDR, Inc.
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 *
013 *      http://www.apache.org/licenses/LICENSE-2.0
014 *
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import java.lang.reflect.Field;
024import java.lang.reflect.Modifier;
025import java.util.Collections;
026import java.util.Map;
027import java.util.Set;
028
029import org.hl7.fhir.instance.model.api.IBase;
030
031import ca.uhn.fhir.model.api.annotation.Child;
032import ca.uhn.fhir.model.api.annotation.Description;
033import org.slf4j.Logger;
034import org.slf4j.LoggerFactory;
035
036public abstract class BaseRuntimeChildDatatypeDefinition extends BaseRuntimeDeclaredChildDefinition {
037        Logger ourLog = LoggerFactory.getLogger(BaseRuntimeChildDatatypeDefinition.class);
038
039        private Class<? extends IBase> myDatatype;
040
041        private BaseRuntimeElementDefinition<?> myElementDefinition;
042
043        public BaseRuntimeChildDatatypeDefinition(Field theField, String theElementName, Child theChildAnnotation, Description theDescriptionAnnotation, Class<? extends IBase> theDatatype) {
044                super(theField, theChildAnnotation, theDescriptionAnnotation, theElementName);
045                // should use RuntimeChildAny
046                assert Modifier.isInterface(theDatatype.getModifiers()) == false : "Type of " + theDatatype + " shouldn't be here";
047                assert Modifier.isAbstract(theDatatype.getModifiers()) == false : "Type of " + theDatatype + " shouldn't be here";
048                myDatatype = theDatatype;
049        }
050
051        /**
052         * If this child has a bound type, this method will return the Enum type that
053         * it is bound to. Otherwise, will return <code>null</code>.
054         */
055        public Class<? extends Enum<?>> getBoundEnumType() {
056                return null;
057        }
058
059        @Override
060        public BaseRuntimeElementDefinition<?> getChildByName(String theName) {
061                if (getElementName().equals(theName)) {
062                        return myElementDefinition;
063                }
064                return null;
065        }
066
067        @Override
068        public BaseRuntimeElementDefinition<?> getChildElementDefinitionByDatatype(Class<? extends IBase> theDatatype) {
069                Class<?> nextType = theDatatype;
070                while (nextType.equals(Object.class) == false) {
071                        if (myDatatype.equals(nextType)) {
072                                return myElementDefinition;
073                        }
074                        nextType = nextType.getSuperclass();
075                }
076                return null;
077        }
078
079        @Override
080        public String getChildNameByDatatype(Class<? extends IBase> theDatatype) {
081                Class<?> nextType = theDatatype;
082                while (nextType.equals(Object.class) == false) {
083                        if (myDatatype.equals(nextType)) {
084                                return getElementName();
085                        }
086                        nextType = nextType.getSuperclass();
087                }
088                return null;
089        }
090
091        public Class<? extends IBase> getDatatype() {
092                return myDatatype;
093        }
094
095        @Override
096        public Set<String> getValidChildNames() {
097                return Collections.singleton(getElementName());
098        }
099
100        @Override
101        void sealAndInitialize(FhirContext theContext, Map<Class<? extends IBase>, BaseRuntimeElementDefinition<?>> theClassToElementDefinitions) {
102                myElementDefinition = theClassToElementDefinitions.get(getDatatype());
103                if (myElementDefinition == null) {
104                        myElementDefinition = theContext.getElementDefinition(getDatatype());
105                }
106                assert myElementDefinition != null : "Unknown type: " + getDatatype();
107        }
108
109        @Override
110        public String toString() {
111                return getClass().getSimpleName() + "[" + getElementName() + "]";
112        }
113
114}