001package ca.uhn.fhir.narrative;
002
003/*
004 * #%L
005 * HAPI FHIR - Core Library
006 * %%
007 * Copyright (C) 2014 - 2022 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 ca.uhn.fhir.context.FhirContext;
024import ca.uhn.fhir.i18n.Msg;
025import ca.uhn.fhir.narrative2.NarrativeTemplateManifest;
026import ca.uhn.fhir.narrative2.ThymeleafNarrativeGenerator;
027import ca.uhn.fhir.rest.server.exceptions.InternalErrorException;
028import org.hl7.fhir.instance.model.api.IBaseResource;
029
030import java.io.IOException;
031import java.util.List;
032
033public abstract class BaseThymeleafNarrativeGenerator extends ThymeleafNarrativeGenerator {
034
035        private boolean myInitialized;
036
037        /**
038         * Constructor
039         */
040        protected BaseThymeleafNarrativeGenerator() {
041                super();
042        }
043
044        @Override
045        public boolean populateResourceNarrative(FhirContext theFhirContext, IBaseResource theResource) {
046                if (!myInitialized) {
047                        initialize();
048                }
049                super.populateResourceNarrative(theFhirContext, theResource);
050                return false;
051        }
052
053        protected abstract List<String> getPropertyFile();
054
055        private synchronized void initialize() {
056                if (myInitialized) {
057                        return;
058                }
059
060                List<String> propFileName = getPropertyFile();
061                try {
062                        NarrativeTemplateManifest manifest = NarrativeTemplateManifest.forManifestFileLocation(propFileName);
063                        setManifest(manifest);
064                } catch (IOException e) {
065                        throw new InternalErrorException(Msg.code(1808) + e);
066                }
067
068                myInitialized = true;
069        }
070
071
072}