/*
* This library is part of OpenCms -
* the Open Source Content Management System
*
* Copyright (c) Alkacon Software GmbH (http://www.alkacon.com)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* For further information about Alkacon Software GmbH, please see the
* company website: http://www.alkacon.com
*
* For further information about OpenCms, please see the
* project website: http://www.opencms.org
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.opencms.setup.db.update6to7;
import org.opencms.setup.CmsSetupDBWrapper;
import org.opencms.setup.CmsSetupDb;
import org.opencms.setup.db.A_CmsUpdateDBPart;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
/**
* This class converts the backup tables to history tables.<p>
*
* The following tables are converted
* CMS_BACKUP_PROJECTRESOURCES
* CMS_BACKUP_PROPERTIES
* CMS_BACKUP_PROPERTYDEF
* CMS_BACKUP_RESOURCES
* CMS_BACKUP_STRUCTURE
*
* The tables CMS_HISTORY_PRINCIPALS and CMS_HISTORY_PROJECTS are created in other classes.
*
* CMS_HISTORY_PRINCIPALS is a completely new table and is therefor handled by its own class.
*
* CMS_HISTORY_PROJECTS needs extra conversion beyond the execution of SQL statements and is
* also handled by a special class.
*
* @since 7.0.0
*/
public class CmsUpdateDBHistoryTables extends A_CmsUpdateDBPart {
/** Constant for the SQL query properties.<p> */
private static final String QUERY_PROPERTY_FILE = "cms_history_queries.properties";
/** Constant for the sql query to count the contents of a table.<p> */
private static final String QUERY_SELECT_COUNT_HISTORY_TABLE = "Q_SELECT_COUNT_HISTORY_TABLE";
/** Constant for the replacement of the tablename in the sql query. */
private static final String REPLACEMENT_TABLENAME = "${tablename}";
/**
* Constructor.<p>
*
* @throws IOException if the sql queries properties file could not be read
*/
public CmsUpdateDBHistoryTables()
throws IOException {
super();
loadQueryProperties(getPropertyFileLocation() + QUERY_PROPERTY_FILE);
}
/**
* @see org.opencms.setup.db.A_CmsUpdateDBPart#internalExecute(org.opencms.setup.CmsSetupDb)
*/
@Override
protected void internalExecute(CmsSetupDb dbCon) throws SQLException {
System.out.println(new Exception().getStackTrace()[0].toString());
List<String> elements = new ArrayList<String>();
elements.add("CMS_HISTORY_PROPERTYDEF");
if (isKeepHistory()) {
elements.add("CMS_HISTORY_PROJECTRESOURCES");
elements.add("CMS_HISTORY_PROPERTIES");
elements.add("CMS_HISTORY_RESOURCES");
elements.add("CMS_HISTORY_STRUCTURE");
}
for (Iterator<String> it = elements.iterator(); it.hasNext();) {
String table = it.next();
System.out.println("Updating table " + table);
if (dbCon.hasTableOrColumn(table, null)) {
Map<String, String> replacer = new HashMap<String, String>();
replacer.put(REPLACEMENT_TABLENAME, table);
CmsSetupDBWrapper db = null;
boolean update = false;
try {
db = dbCon.executeSqlStatement(readQuery(QUERY_SELECT_COUNT_HISTORY_TABLE), replacer);
if (db.getResultSet().next()) {
if (db.getResultSet().getInt("COUNT") <= 0) {
update = true;
}
}
} finally {
if (db != null) {
db.close();
}
}
if (update) {
String query = readQuery(table);
dbCon.updateSqlStatement(query, null, null);
} else {
System.out.println("table " + table + " already has data");
}
} else {
System.out.println("table " + table + " does not exists");
}
}
}
}