/**
* Copyright (c) 2010-2016 by the respective copyright holders.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*/
package org.openhab.persistence.jdbc.db;
import org.knowm.yank.Yank;
import org.openhab.core.items.Item;
import org.openhab.persistence.jdbc.model.ItemVO;
import org.openhab.persistence.jdbc.model.ItemsVO;
import org.openhab.persistence.jdbc.utils.StringUtilsExt;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Extended Database Configuration class. Class represents
* the extended database-specific configuration. Overrides and supplements the
* default settings from JdbcBaseDAO. Enter only the differences to JdbcBaseDAO here.
*
* @author Helmut Lehmeyer
* @since 1.8.0
*/
public class JdbcHsqldbDAO extends JdbcBaseDAO {
private static final Logger logger = LoggerFactory.getLogger(JdbcHsqldbDAO.class);
/********
* INIT *
********/
public JdbcHsqldbDAO() {
super();
initSqlQueries();
initSqlTypes();
initDbProps();
}
private void initSqlQueries() {
logger.debug("JDBC::initSqlQueries: '{}'", this.getClass().getSimpleName());
// http://hsqldb.org/doc/guide/builtinfunctions-chapt.html
SQL_PING_DB = "SELECT 1 FROM INFORMATION_SCHEMA.SYSTEM_USERS";
SQL_GET_DB = "SELECT DATABASE () FROM INFORMATION_SCHEMA.SYSTEM_USERS";
SQL_IF_TABLE_EXISTS = "SELECT * FROM INFORMATION_SCHEMA.SYSTEM_TABLES WHERE TABLE_NAME='#searchTable#'";
SQL_CREATE_ITEMS_TABLE_IF_NOT = "CREATE TABLE IF NOT EXISTS #itemsManageTable# ( ItemId INT GENERATED BY DEFAULT AS IDENTITY (START WITH 1, INCREMENT BY 1) NOT NULL, #colname# #coltype# NOT NULL)";
SQL_CREATE_NEW_ENTRY_IN_ITEMS_TABLE = "INSERT INTO #itemsManageTable# (ItemName) VALUES ('#itemname#')";
// Prevent error against duplicate time value
// http://hsqldb.org/doc/guide/dataaccess-chapt.html#dac_merge_statement
// SQL_INSERT_ITEM_VALUE = "INSERT INTO #tableName# (TIME, VALUE) VALUES( NOW(), CAST( ? as #dbType#) )";
SQL_INSERT_ITEM_VALUE = "MERGE INTO #tableName# "
+ "USING (VALUES #tablePrimaryValue#, CAST( ? as #dbType#)) temp (TIME, VALUE) ON (#tableName#.TIME=temp.TIME) "
+ "WHEN NOT MATCHED THEN INSERT (TIME, VALUE) VALUES (temp.TIME, temp.VALUE)";
}
/**
* INFO: http://www.java2s.com/Code/Java/Database-SQL-JDBC/StandardSQLDataTypeswithTheirJavaEquivalents.htm
*/
private void initSqlTypes() {
}
/**
* INFO: https://github.com/brettwooldridge/HikariCP
*/
private void initDbProps() {
// Properties for HikariCP
databaseProps.setProperty("driverClassName", "org.hsqldb.jdbcDriver");
// driverClassName OR BETTER USE dataSourceClassName
// databaseProps.setProperty("dataSourceClassName", "org.hsqldb.jdbc.JDBCDataSource");
// databaseProps.setProperty("maximumPoolSize", "1");
// databaseProps.setProperty("minimumIdle", "1");
}
/**************
* ITEMS DAOs *
**************/
@Override
public Integer doPingDB() {
return Yank.queryScalar(SQL_PING_DB, Integer.class, null);
}
@Override
public ItemsVO doCreateItemsTableIfNot(ItemsVO vo) {
String sql = StringUtilsExt.replaceArrayMerge(SQL_CREATE_ITEMS_TABLE_IF_NOT,
new String[] { "#itemsManageTable#", "#colname#", "#coltype#", "#itemsManageTable#" },
new String[] { vo.getItemsManageTable(), vo.getColname(), vo.getColtype(), vo.getItemsManageTable() });
logger.debug("JDBC::doCreateItemsTableIfNot sql={}", sql);
Yank.execute(sql, null);
return vo;
}
@Override
public Long doCreateNewEntryInItemsTable(ItemsVO vo) {
String sql = StringUtilsExt.replaceArrayMerge(SQL_CREATE_NEW_ENTRY_IN_ITEMS_TABLE,
new String[] { "#itemsManageTable#", "#itemname#" },
new String[] { vo.getItemsManageTable(), vo.getItemname() });
logger.debug("JDBC::doCreateNewEntryInItemsTable sql={}", sql);
return Yank.insert(sql, null);
}
/*************
* ITEM DAOs *
*************/
@Override
public void doStoreItemValue(Item item, ItemVO vo) {
vo = storeItemValueProvider(item, vo);
String sql = StringUtilsExt.replaceArrayMerge(SQL_INSERT_ITEM_VALUE,
new String[] { "#tableName#", "#dbType#", "#tableName#", "#tablePrimaryValue#" }, new String[] {
vo.getTableName(), vo.getDbType(), vo.getTableName(), sqlTypes.get("tablePrimaryValue") });
Object[] params = new Object[] { vo.getValue() };
logger.debug("JDBC::doStoreItemValue sql={} value='{}'", sql, vo.getValue());
Yank.execute(sql, params);
}
/****************************
* SQL generation Providers *
****************************/
/*****************
* H E L P E R S *
*****************/
/******************************
* public Getters and Setters *
******************************/
}