001package ca.uhn.fhir.cql.dstu3.evaluation;
002
003/*-
004 * #%L
005 * HAPI FHIR JPA Server - Clinical Quality Language
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.i18n.Msg;
024import ca.uhn.fhir.context.FhirContext;
025import ca.uhn.fhir.cql.common.provider.EvaluationProviderFactory;
026import ca.uhn.fhir.cql.common.retrieve.JpaFhirRetrieveProvider;
027import ca.uhn.fhir.jpa.api.dao.DaoRegistry;
028import ca.uhn.fhir.rest.api.server.RequestDetails;
029import org.opencds.cqf.cql.engine.data.CompositeDataProvider;
030import org.opencds.cqf.cql.engine.data.DataProvider;
031import org.opencds.cqf.cql.engine.fhir.searchparam.SearchParameterResolver;
032import org.opencds.cqf.cql.engine.model.ModelResolver;
033import org.opencds.cqf.cql.engine.terminology.TerminologyProvider;
034import org.opencds.cqf.cql.evaluator.engine.terminology.PrivateCachingTerminologyProviderDecorator;
035import org.springframework.beans.factory.annotation.Autowired;
036import org.springframework.stereotype.Component;
037
038// This class is a relatively dumb factory for data providers. It supports only
039// creating JPA providers for FHIR and only basic auth for terminology
040@Component
041public class ProviderFactory implements EvaluationProviderFactory {
042
043        private final DaoRegistry registry;
044        private final TerminologyProvider defaultTerminologyProvider;
045        private final FhirContext fhirContext;
046        private final ModelResolver fhirModelResolver;
047
048        @Autowired
049        public ProviderFactory(FhirContext fhirContext, DaoRegistry registry,
050                                                                  TerminologyProvider defaultTerminologyProvider, ModelResolver fhirModelResolver) {
051                this.defaultTerminologyProvider = defaultTerminologyProvider;
052                this.registry = registry;
053                this.fhirContext = fhirContext;
054                this.fhirModelResolver = fhirModelResolver;
055        }
056
057        public DataProvider createDataProvider(String model, String version, RequestDetails theRequestDetails) {
058                return this.createDataProvider(model, version, null, null, null, theRequestDetails);
059        }
060
061        public DataProvider createDataProvider(String model, String version, String url, String user, String pass, RequestDetails theRequestDetails) {
062                TerminologyProvider terminologyProvider = this.createTerminologyProvider(model, version, url, user, pass);
063                return this.createDataProvider(model, version, terminologyProvider, theRequestDetails);
064        }
065
066        public DataProvider createDataProvider(String model, String version, TerminologyProvider terminologyProvider, RequestDetails theRequestDetails) {
067                if (model.equals("FHIR") && version.startsWith("3")) {
068                        JpaFhirRetrieveProvider retrieveProvider = new JpaFhirRetrieveProvider(this.registry,
069                                new SearchParameterResolver(this.fhirContext), theRequestDetails);
070                        retrieveProvider.setTerminologyProvider(terminologyProvider);
071                        retrieveProvider.setExpandValueSets(true);
072
073                        return new CompositeDataProvider(this.fhirModelResolver, retrieveProvider);
074                }
075
076                throw new IllegalArgumentException(Msg.code(1650) + String.format("Can't construct a data provider for model %s version %s", model, version));
077    }
078
079    public TerminologyProvider createTerminologyProvider(String model, String version, String url, String user,
080            String pass) {
081                  TerminologyProvider terminologyProvider = null;
082                  terminologyProvider = this.defaultTerminologyProvider;
083        return new PrivateCachingTerminologyProviderDecorator(terminologyProvider);
084    }
085}