001/*-
002 * #%L
003 * HAPI FHIR JPA Server - Batch2 Task Processor
004 * %%
005 * Copyright (C) 2014 - 2024 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.batch2.jobs.step;
021
022import ca.uhn.fhir.batch2.jobs.chunk.ChunkRangeJson;
023import ca.uhn.fhir.interceptor.model.RequestPartitionId;
024import ca.uhn.fhir.jpa.api.pid.IResourcePidStream;
025import ca.uhn.fhir.jpa.api.svc.IBatch2DaoSvc;
026import ca.uhn.fhir.util.Logs;
027import org.slf4j.Logger;
028
029public class ChunkProducer implements IIdChunkProducer<ChunkRangeJson> {
030        private static final Logger ourLog = Logs.getBatchTroubleshootingLog();
031        private final IBatch2DaoSvc myBatch2DaoSvc;
032
033        public ChunkProducer(IBatch2DaoSvc theBatch2DaoSvc) {
034                myBatch2DaoSvc = theBatch2DaoSvc;
035        }
036
037        @Override
038        public IResourcePidStream fetchResourceIdStream(ChunkRangeJson theData) {
039                String theUrl = theData.getUrl();
040                RequestPartitionId targetPartitionId = theData.getPartitionId();
041                ourLog.info(
042                                "Fetching resource ID chunk in partition {} for URL {} - Range {} - {}",
043                                targetPartitionId,
044                                theUrl,
045                                theData.getStart(),
046                                theData.getEnd());
047
048                return myBatch2DaoSvc.fetchResourceIdStream(theData.getStart(), theData.getEnd(), targetPartitionId, theUrl);
049        }
050}