001/*
002 * #%L
003 * HAPI FHIR JPA Server
004 * %%
005 * Copyright (C) 2014 - 2023 Smile CDR, Inc.
006 * %%
007 * Licensed under the Apache License, Version 2.0 (the "License");
008 * you may not use this file except in compliance with the License.
009 * You may obtain a copy of the License at
010 *
011 * http://www.apache.org/licenses/LICENSE-2.0
012 *
013 * Unless required by applicable law or agreed to in writing, software
014 * distributed under the License is distributed on an "AS IS" BASIS,
015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
016 * See the License for the specific language governing permissions and
017 * limitations under the License.
018 * #L%
019 */
020package ca.uhn.fhir.jpa.dao;
021
022import ca.uhn.fhir.jpa.api.dao.IFhirResourceDaoSearchParameter;
023import ca.uhn.fhir.jpa.dao.validation.SearchParameterDaoValidator;
024import ca.uhn.fhir.jpa.model.entity.ResourceTable;
025import ca.uhn.fhir.rest.api.server.RequestDetails;
026import ca.uhn.hapi.converters.canonical.VersionCanonicalizer;
027import com.google.common.annotations.VisibleForTesting;
028import org.hl7.fhir.instance.model.api.IBaseResource;
029import org.hl7.fhir.r5.model.Enumeration;
030import org.springframework.beans.factory.annotation.Autowired;
031import org.springframework.transaction.support.TransactionSynchronization;
032import org.springframework.transaction.support.TransactionSynchronizationManager;
033
034import java.util.List;
035import java.util.concurrent.atomic.AtomicBoolean;
036import java.util.stream.Collectors;
037
038public class JpaResourceDaoSearchParameter<T extends IBaseResource> extends BaseHapiFhirResourceDao<T>
039                implements IFhirResourceDaoSearchParameter<T> {
040
041        private final AtomicBoolean myCacheReloadTriggered = new AtomicBoolean(false);
042
043        @Autowired
044        private VersionCanonicalizer myVersionCanonicalizer;
045
046        @Autowired
047        private SearchParameterDaoValidator mySearchParameterDaoValidator;
048
049        protected void reindexAffectedResources(T theResource, RequestDetails theRequestDetails) {
050
051                /*
052                 * After we commit, flush the search parameter cache. This only helps on the
053                 * local server (ie in a cluster the other servers won't be flushed) but
054                 * the cache is short anyhow, and  flushing locally is better than nothing.
055                 * Many use cases where you would create a search parameter and immediately
056                 * try to use it tend to be on single-server setups anyhow, e.g. unit tests
057                 */
058                if (!shouldSkipReindex(theRequestDetails)) {
059                        if (!myCacheReloadTriggered.getAndSet(true)) {
060                                TransactionSynchronizationManager.registerSynchronization(new TransactionSynchronization() {
061                                        @Override
062                                        public void afterCommit() {
063                                                myCacheReloadTriggered.set(false);
064                                                mySearchParamRegistry.forceRefresh();
065                                        }
066                                });
067                        }
068                }
069
070                // N.B. Don't do this on the canonicalized version
071                Boolean reindex = theResource != null ? CURRENTLY_REINDEXING.get(theResource) : null;
072
073                org.hl7.fhir.r5.model.SearchParameter searchParameter =
074                                myVersionCanonicalizer.searchParameterToCanonical(theResource);
075                List<String> base = theResource != null
076                                ? searchParameter.getBase().stream().map(Enumeration::getCode).collect(Collectors.toList())
077                                : null;
078                requestReindexForRelatedResources(reindex, base, theRequestDetails);
079        }
080
081        @Override
082        protected void postPersist(ResourceTable theEntity, T theResource, RequestDetails theRequestDetails) {
083                super.postPersist(theEntity, theResource, theRequestDetails);
084                reindexAffectedResources(theResource, theRequestDetails);
085        }
086
087        @Override
088        protected void postUpdate(ResourceTable theEntity, T theResource, RequestDetails theRequestDetails) {
089                super.postUpdate(theEntity, theResource, theRequestDetails);
090                reindexAffectedResources(theResource, theRequestDetails);
091        }
092
093        @Override
094        protected void preDelete(T theResourceToDelete, ResourceTable theEntityToDelete, RequestDetails theRequestDetails) {
095                super.preDelete(theResourceToDelete, theEntityToDelete, theRequestDetails);
096                reindexAffectedResources(theResourceToDelete, theRequestDetails);
097        }
098
099        @Override
100        protected void validateResourceForStorage(T theResource, ResourceTable theEntityToSave) {
101                super.validateResourceForStorage(theResource, theEntityToSave);
102
103                validateSearchParam(theResource);
104        }
105
106        public void validateSearchParam(IBaseResource theResource) {
107                org.hl7.fhir.r5.model.SearchParameter searchParameter =
108                                myVersionCanonicalizer.searchParameterToCanonical(theResource);
109                mySearchParameterDaoValidator.validate(searchParameter);
110        }
111
112        @VisibleForTesting
113        void setVersionCanonicalizerForUnitTest(VersionCanonicalizer theVersionCanonicalizer) {
114                myVersionCanonicalizer = theVersionCanonicalizer;
115        }
116
117        @VisibleForTesting
118        public void setSearchParameterDaoValidatorForUnitTest(SearchParameterDaoValidator theSearchParameterDaoValidator) {
119                mySearchParameterDaoValidator = theSearchParameterDaoValidator;
120        }
121}