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   1 /**
   2  * Copyright (c) 2010-2024 Contributors to the openHAB project
   3  *
   4  * See the NOTICE file(s) distributed with this work for additional
   5  * information.
   6  *
   7  * This program and the accompanying materials are made available under the
   8  * terms of the Eclipse Public License 2.0 which is available at
   9  * http://www.eclipse.org/legal/epl-2.0
  10  *
  11  * SPDX-License-Identifier: EPL-2.0
  12  */
  13 package org.openhab.persistence.jdbc.internal.db;
  14
  15 import java.time.ZonedDateTime;
  16
  17 import org.eclipse.jdt.annotation.NonNullByDefault;
  18 import org.knowm.yank.Yank;
  19 import org.knowm.yank.exceptions.YankSQLException;
  20 import org.openhab.core.items.Item;
  21 import org.openhab.core.types.State;
  22 import org.openhab.persistence.jdbc.internal.dto.ItemVO;
  23 import org.openhab.persistence.jdbc.internal.exceptions.JdbcSQLException;
  24 import org.openhab.persistence.jdbc.internal.utils.StringUtilsExt;
  25 import org.slf4j.Logger;
  26 import org.slf4j.LoggerFactory;
  27
  28 /**
  29  * Extended Database Configuration class. Class represents
  30  * the extended database-specific configuration. Overrides and supplements the
  31  * default settings from JdbcBaseDAO. Enter only the differences to JdbcBaseDAO here.
  32  *
  33  * @author Helmut Lehmeyer - Initial contribution
  34  */
  35 @NonNullByDefault
  36 public class JdbcH2DAO extends JdbcBaseDAO {
  37     private static final String DRIVER_CLASS_NAME = org.h2.Driver.class.getName();
  38     @SuppressWarnings("unused")
  39     private static final String DATA_SOURCE_CLASS_NAME = org.h2.jdbcx.JdbcDataSource.class.getName();
  40
  41     private final Logger logger = LoggerFactory.getLogger(JdbcH2DAO.class);
  42
  43     /********
  44      * INIT *
  45      ********/
  46     public JdbcH2DAO() {
  47         initSqlQueries();
  48         initSqlTypes();
  49         initDbProps();
  50     }
  51
  52     private void initSqlQueries() {
  53         logger.debug("JDBC::initSqlQueries: '{}'", this.getClass().getSimpleName());
  54         sqlIfTableExists = "SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME='#searchTable#'";
  55         sqlGetItemTables = "SELECT LOWER(table_name) AS table_name FROM information_schema.tables WHERE table_type='BASE TABLE' AND table_schema='PUBLIC' AND NOT table_name=UPPER('#itemsManageTable#')";
  56         sqlGetTableColumnTypes = "SELECT column_name, data_type, is_nullable FROM information_schema.columns WHERE table_schema='#jdbcUriDatabaseName#' AND table_name='#tableName#'";
  57         // SQL_INSERT_ITEM_VALUE = "INSERT INTO #tableName# (TIME, VALUE) VALUES( NOW(), CAST( ? as #dbType#) )";
  58         // http://stackoverflow.com/questions/19768051/h2-sql-database-insert-if-the-record-does-not-exist
  59         sqlInsertItemValue = "MERGE INTO #tableName# (TIME, VALUE) VALUES( #tablePrimaryValue#, CAST( ? as #dbType#) )";
  60     }
  61
  62     /**
  63      * INFO: http://www.java2s.com/Code/Java/Database-SQL-JDBC/StandardSQLDataTypeswithTheirJavaEquivalents.htm
  64      */
  65     private void initSqlTypes() {
  66     }
  67
  68     /**
  69      * INFO: https://github.com/brettwooldridge/HikariCP
  70      */
  71     private void initDbProps() {
  72         // Properties for HikariCP
  73         databaseProps.setProperty("driverClassName", DRIVER_CLASS_NAME);
  74     }
  75
  76     /**************
  77      * ITEMS DAOs *
  78      **************/
  79
  80     /*************
  81      * ITEM DAOs *
  82      *************/
  83     @Override
  84     public void doStoreItemValue(Item item, State itemState, ItemVO vo) throws JdbcSQLException {
  85         ItemVO storedVO = storeItemValueProvider(item, itemState, vo);
  86         String sql = StringUtilsExt.replaceArrayMerge(sqlInsertItemValue,
  87                 new String[] { "#tableName#", "#dbType#", "#tablePrimaryValue#" },
  88                 new String[] { storedVO.getTableName(), storedVO.getDbType(), sqlTypes.get("tablePrimaryValue") });
  89         Object[] params = { storedVO.getValue() };
  90         logger.debug("JDBC::doStoreItemValue sql={} value='{}'", sql, storedVO.getValue());
  91         try {
  92             Yank.execute(sql, params);
  93         } catch (YankSQLException e) {
  94             throw new JdbcSQLException(e);
  95         }
  96     }
  97
  98     @Override
  99     public void doStoreItemValue(Item item, State itemState, ItemVO vo, ZonedDateTime date) throws JdbcSQLException {
 100         ItemVO storedVO = storeItemValueProvider(item, itemState, vo);
 101         String sql = StringUtilsExt.replaceArrayMerge(sqlInsertItemValue,
 102                 new String[] { "#tableName#", "#dbType#", "#tablePrimaryValue#" },
 103                 new String[] { storedVO.getTableName(), storedVO.getDbType(), "?" });
 104         java.sql.Timestamp timestamp = new java.sql.Timestamp(date.toInstant().toEpochMilli());
 105         Object[] params = { timestamp, storedVO.getValue() };
 106         logger.debug("JDBC::doStoreItemValue sql={} timestamp={} value='{}'", sql, timestamp, storedVO.getValue());
 107         try {
 108             Yank.execute(sql, params);
 109         } catch (YankSQLException e) {
 110             throw new JdbcSQLException(e);
 111         }
 112     }
 113
 114     /****************************
 115      * SQL generation Providers *
 116      ****************************/
 117
 118     /*****************
 119      * H E L P E R S *
 120      *****************/
 121
 122     /******************************
 123      * public Getters and Setters *
 124      ******************************/
 125 }