001/*-
002 * #%L
003 * HAPI FHIR JPA 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.config;
021
022import ca.uhn.fhir.jpa.api.config.JpaStorageSettings;
023import ca.uhn.fhir.util.ReflectionUtil;
024import com.google.common.annotations.VisibleForTesting;
025import org.apache.commons.lang3.StringUtils;
026import org.apache.commons.lang3.Validate;
027import org.hibernate.dialect.Dialect;
028import org.hibernate.search.engine.cfg.BackendSettings;
029import org.springframework.beans.factory.annotation.Autowired;
030import org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean;
031
032import javax.sql.DataSource;
033
034public class HibernatePropertiesProvider {
035
036        @Autowired
037        private LocalContainerEntityManagerFactoryBean myEntityManagerFactory;
038
039        private Dialect myDialect;
040        private String myHibernateSearchBackend;
041
042        @Autowired
043        private JpaStorageSettings myStorageSettings;
044
045        @VisibleForTesting
046        public void setDialectForUnitTest(Dialect theDialect) {
047                myDialect = theDialect;
048        }
049
050        public Dialect getDialect() {
051                Dialect dialect = myDialect;
052                if (dialect == null) {
053                        String dialectClass =
054                                        (String) myEntityManagerFactory.getJpaPropertyMap().get("hibernate.dialect");
055                        dialect = ReflectionUtil.newInstanceOrReturnNull(dialectClass, Dialect.class);
056                        Validate.notNull(dialect, "Unable to create instance of class: %s", dialectClass);
057                        myDialect = dialect;
058                }
059
060                return dialect;
061        }
062
063        public String getHibernateSearchBackend() {
064                String hibernateSearchBackend = myHibernateSearchBackend;
065                if (StringUtils.isBlank(hibernateSearchBackend)) {
066                        hibernateSearchBackend = (String)
067                                        myEntityManagerFactory.getJpaPropertyMap().get(BackendSettings.backendKey(BackendSettings.TYPE));
068                        Validate.notNull(
069                                        hibernateSearchBackend, BackendSettings.backendKey(BackendSettings.TYPE) + " property is unset!");
070                        myHibernateSearchBackend = hibernateSearchBackend;
071                }
072                return myHibernateSearchBackend;
073        }
074
075        public DataSource getDataSource() {
076                return myEntityManagerFactory.getDataSource();
077        }
078
079        public boolean isOracleDialect() {
080                return getDialect() instanceof org.hibernate.dialect.OracleDialect;
081        }
082}