001package ca.uhn.fhir.context;
002
003/*
004 * #%L
005 * HAPI FHIR - Core Library
006 * %%
007 * Copyright (C) 2014 - 2019 University Health Network
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;
033
034public abstract class BaseRuntimeChildDatatypeDefinition extends BaseRuntimeDeclaredChildDefinition {
035
036        private Class<? extends IBase> myDatatype;
037
038        private BaseRuntimeElementDefinition<?> myElementDefinition;
039
040        public BaseRuntimeChildDatatypeDefinition(Field theField, String theElementName, Child theChildAnnotation, Description theDescriptionAnnotation, Class<? extends IBase> theDatatype) {
041                super(theField, theChildAnnotation, theDescriptionAnnotation, theElementName);
042                // should use RuntimeChildAny
043                assert Modifier.isInterface(theDatatype.getModifiers()) == false : "Type of " + theDatatype + " shouldn't be here";
044                assert Modifier.isAbstract(theDatatype.getModifiers()) == false : "Type of " + theDatatype + " shouldn't be here";
045                myDatatype = theDatatype;
046        }
047
048        /**
049         * If this child has a bound type, this method will return the Enum type that
050         * it is bound to. Otherwise, will return <code>null</code>.
051         */
052        public Class<? extends Enum<?>> getBoundEnumType() {
053                return null;
054        }
055
056        @Override
057        public BaseRuntimeElementDefinition<?> getChildByName(String theName) {
058                if (getElementName().equals(theName)) {
059                        return myElementDefinition;
060                }
061                return null;
062        }
063
064        @Override
065        public BaseRuntimeElementDefinition<?> getChildElementDefinitionByDatatype(Class<? extends IBase> theDatatype) {
066                Class<?> nextType = theDatatype;
067                while (nextType.equals(Object.class) == false) {
068                        if (myDatatype.equals(nextType)) {
069                                return myElementDefinition;
070                        }
071                        nextType = nextType.getSuperclass();
072                }
073                return null;
074        }
075
076        @Override
077        public String getChildNameByDatatype(Class<? extends IBase> theDatatype) {
078                Class<?> nextType = theDatatype;
079                while (nextType.equals(Object.class) == false) {
080                        if (myDatatype.equals(nextType)) {
081                                return getElementName();
082                        }
083                        nextType = nextType.getSuperclass();
084                }
085                return null;
086        }
087
088        public Class<? extends IBase> getDatatype() {
089                return myDatatype;
090        }
091
092        @Override
093        public Set<String> getValidChildNames() {
094                return Collections.singleton(getElementName());
095        }
096
097        @Override
098        void sealAndInitialize(FhirContext theContext, Map<Class<? extends IBase>, BaseRuntimeElementDefinition<?>> theClassToElementDefinitions) {
099                myElementDefinition = theClassToElementDefinitions.get(getDatatype());
100                if (myElementDefinition == null) {
101                        myElementDefinition = theContext.getElementDefinition(getDatatype());
102                }
103                assert myElementDefinition != null : "Unknown type: " + getDatatype();
104        }
105
106        @Override
107        public String toString() {
108                return getClass().getSimpleName() + "[" + getElementName() + "]";
109        }
110
111}