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