001package ca.uhn.fhir.jpa.migrate.taskdef;
002
003/*-
004 * #%L
005 * HAPI FHIR Server - SQL Migration
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.jpa.migrate.JdbcUtils;
024import ca.uhn.fhir.util.VersionEnum;
025
026import java.sql.SQLException;
027import java.util.Set;
028
029public class CalculateHashesTask extends BaseColumnCalculatorTask {
030
031        /**
032         * Constructor
033         */
034        public CalculateHashesTask(VersionEnum theRelease, String theVersion) {
035                super(theRelease, theVersion);
036                setDescription("Calculate resource search parameter index hashes");
037                setPidColumnName("SP_ID");
038        }
039
040        @Override
041        protected boolean shouldSkipTask() {
042                try {
043                        Set<String> tableNames = JdbcUtils.getTableNames(getConnectionProperties());
044                        boolean shouldSkip = tableNames.contains("HFJ_RES_REINDEX_JOB");
045                        // This table was added shortly after hash indexes were added, so it is a reasonable indicator for whether this
046                        // migration has already been run
047                        if (shouldSkip) {
048                                logInfo(ourLog, "The table HFJ_RES_REINDEX_JOB already exists.  Skipping calculate hashes task.");
049                        }
050                        return shouldSkip;
051                } catch (SQLException e) {
052                        logInfo(ourLog, "Error retrieving table names, skipping task");
053                        return true;
054                }
055        }
056}