001/* 002 * This library is part of OpenCms - 003 * the Open Source Content Management System 004 * 005 * Copyright (c) Alkacon Software GmbH & Co. KG (http://www.alkacon.com) 006 * 007 * This library is free software; you can redistribute it and/or 008 * modify it under the terms of the GNU Lesser General Public 009 * License as published by the Free Software Foundation; either 010 * version 2.1 of the License, or (at your option) any later version. 011 * 012 * This library is distributed in the hope that it will be useful, 013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 015 * Lesser General Public License for more details. 016 * 017 * For further information about Alkacon Software GmbH & Co. KG, please see the 018 * company website: http://www.alkacon.com 019 * 020 * For further information about OpenCms, please see the 021 * project website: http://www.opencms.org 022 * 023 * You should have received a copy of the GNU Lesser General Public 024 * License along with this library; if not, write to the Free Software 025 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 026 */ 027 028package org.opencms.setup.db.update6to7; 029 030import org.opencms.setup.CmsSetupDBWrapper; 031import org.opencms.setup.CmsSetupDb; 032import org.opencms.setup.db.A_CmsUpdateDBPart; 033 034import java.io.IOException; 035import java.sql.SQLException; 036import java.util.ArrayList; 037import java.util.HashMap; 038import java.util.Iterator; 039import java.util.List; 040import java.util.Map; 041 042/** 043 * This class converts the backup tables to history tables.<p> 044 * 045 * The following tables are converted 046 * CMS_BACKUP_PROJECTRESOURCES 047 * CMS_BACKUP_PROPERTIES 048 * CMS_BACKUP_PROPERTYDEF 049 * CMS_BACKUP_RESOURCES 050 * CMS_BACKUP_STRUCTURE 051 * 052 * The tables CMS_HISTORY_PRINCIPALS and CMS_HISTORY_PROJECTS are created in other classes. 053 * 054 * CMS_HISTORY_PRINCIPALS is a completely new table and is therefor handled by its own class. 055 * 056 * CMS_HISTORY_PROJECTS needs extra conversion beyond the execution of SQL statements and is 057 * also handled by a special class. 058 * 059 * @since 7.0.0 060 */ 061public class CmsUpdateDBHistoryTables extends A_CmsUpdateDBPart { 062 063 /** Constant for the SQL query properties.<p> */ 064 private static final String QUERY_PROPERTY_FILE = "cms_history_queries.properties"; 065 066 /** Constant for the sql query to count the contents of a table.<p> */ 067 private static final String QUERY_SELECT_COUNT_HISTORY_TABLE = "Q_SELECT_COUNT_HISTORY_TABLE"; 068 069 /** Constant for the replacement of the tablename in the sql query. */ 070 private static final String REPLACEMENT_TABLENAME = "${tablename}"; 071 072 /** 073 * Constructor.<p> 074 * 075 * @throws IOException if the sql queries properties file could not be read 076 */ 077 public CmsUpdateDBHistoryTables() 078 throws IOException { 079 080 super(); 081 loadQueryProperties(getPropertyFileLocation() + QUERY_PROPERTY_FILE); 082 } 083 084 /** 085 * @see org.opencms.setup.db.A_CmsUpdateDBPart#internalExecute(org.opencms.setup.CmsSetupDb) 086 */ 087 @Override 088 protected void internalExecute(CmsSetupDb dbCon) throws SQLException { 089 090 System.out.println(new Exception().getStackTrace()[0].toString()); 091 092 List<String> elements = new ArrayList<String>(); 093 elements.add("CMS_HISTORY_PROPERTYDEF"); 094 if (isKeepHistory()) { 095 elements.add("CMS_HISTORY_PROJECTRESOURCES"); 096 elements.add("CMS_HISTORY_PROPERTIES"); 097 elements.add("CMS_HISTORY_RESOURCES"); 098 elements.add("CMS_HISTORY_STRUCTURE"); 099 } 100 for (Iterator<String> it = elements.iterator(); it.hasNext();) { 101 String table = it.next(); 102 System.out.println("Updating table " + table); 103 if (dbCon.hasTableOrColumn(table, null)) { 104 Map<String, String> replacer = new HashMap<String, String>(); 105 replacer.put(REPLACEMENT_TABLENAME, table); 106 CmsSetupDBWrapper db = null; 107 boolean update = false; 108 try { 109 db = dbCon.executeSqlStatement(readQuery(QUERY_SELECT_COUNT_HISTORY_TABLE), replacer); 110 111 if (db.getResultSet().next()) { 112 if (db.getResultSet().getInt("COUNT") <= 0) { 113 update = true; 114 } 115 } 116 } finally { 117 if (db != null) { 118 db.close(); 119 } 120 } 121 if (update) { 122 String query = readQuery(table); 123 dbCon.updateSqlStatement(query, null, null); 124 } else { 125 System.out.println("table " + table + " already has data"); 126 } 127 } else { 128 System.out.println("table " + table + " does not exists"); 129 } 130 } 131 } 132}