001/*-
002 * #%L
003 * HAPI FHIR Storage api
004 * %%
005 * Copyright (C) 2014 - 2025 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.api.model;
021
022import ca.uhn.fhir.rest.api.server.storage.IResourcePersistentId;
023
024import java.util.Map;
025import java.util.Optional;
026import java.util.Set;
027import java.util.stream.Collectors;
028
029public class PersistentIdToForcedIdMap<P extends IResourcePersistentId> {
030        private final Map<P, Optional<String>> myResourcePersistentIdOptionalMap;
031
032        public PersistentIdToForcedIdMap(Map<P, Optional<String>> theResourcePersistentIdOptionalMap) {
033                myResourcePersistentIdOptionalMap = theResourcePersistentIdOptionalMap;
034        }
035
036        public Set<String> getResolvedResourceIds() {
037
038                return myResourcePersistentIdOptionalMap.entrySet().stream()
039                                .map(this::getResolvedPid)
040                                .collect(Collectors.toSet());
041        }
042
043        private String getResolvedPid(Map.Entry<P, Optional<String>> entry) {
044                // If the result of the translation is an empty optional, it means there is no forced id, and we can use the PID
045                // as the resource ID.
046                return entry.getValue().isPresent()
047                                ? entry.getValue().get()
048                                : entry.getKey().toString();
049        }
050
051        public Optional<String> get(P theResourcePersistentId) {
052                return myResourcePersistentIdOptionalMap.get(theResourcePersistentId);
053        }
054
055        public Map<P, Optional<String>> getResourcePersistentIdOptionalMap() {
056                return myResourcePersistentIdOptionalMap;
057        }
058}