001/*-
002 * #%L
003 * HAPI FHIR Subscription Server
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.topic;
021
022import ca.uhn.fhir.jpa.searchparam.SearchParameterMap;
023import ca.uhn.fhir.rest.param.TokenParam;
024import ca.uhn.fhir.rest.server.util.ISearchParamRegistry;
025import ca.uhn.fhir.subscription.SubscriptionConstants;
026import ca.uhn.hapi.converters.canonical.VersionCanonicalizer;
027import jakarta.annotation.Nonnull;
028
029/**
030 * Specialized loader for R4 SubscriptionTopics, which are implemented as Basic resources
031 * with a code of "SubscriptionTopic".
032 */
033public class R4SubscriptionTopicLoader extends BaseSubscriptionTopicLoader {
034
035        /**
036         * Constructor
037         */
038        public R4SubscriptionTopicLoader(
039                        VersionCanonicalizer theVersionCanonicalizer,
040                        SubscriptionTopicRegistry theSubscriptionTopicRegistry,
041                        ISearchParamRegistry theSearchParamRegistry) {
042                super(theVersionCanonicalizer, "Basic", theSubscriptionTopicRegistry, theSearchParamRegistry);
043        }
044
045        @Override
046        @Nonnull
047        public SearchParameterMap getSearchParameterMap() {
048                SearchParameterMap map = new SearchParameterMap();
049
050                // Add the search for Basic resources with code=SubscriptionTopic
051                map.add("code", new TokenParam("http://hl7.org/fhir/fhir-types", "SubscriptionTopic"));
052
053                map.setLoadSynchronousUpTo(SubscriptionConstants.MAX_SUBSCRIPTION_RESULTS);
054                return map;
055        }
056}