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/*
 * This library is part of OpenCms -
 * the Open Source Content Management System
 *
 * Copyright (c) Alkacon Software GmbH & Co. KG (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 & Co. KG, 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.postgresql;

import org.opencms.setup.CmsSetupDb;

import java.io.IOException;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;

/**
 * PostgreSQL implementation of the generic Alter Table class.

* * @since 7.0.2 */ public class CmsUpdateDBAlterTables extends org.opencms.setup.db.update6to7.CmsUpdateDBAlterTables { /** Constant for the sql query to alter table field.

*/ private static final String QUERY_ALTER_FIELD = "Q_ALTER_FIELD_TYPE"; /** Constant for the sql query to set default value of table field.

*/ private static final String QUERY_SET_DEFAULT_VALUE = "Q_ALTER_FIELD_SET_DEFAULT"; /** Constant for the sql query to drop default value of table field.

*/ private static final String QUERY_DROP_DEFAULT_VALUE = "Q_ALTER_FIELD_DROP_DEFAULT"; /** Constant for the sql query to set not null values of table field.

*/ private static final String QUERY_SET_NOT_NULL = "Q_ALTER_FIELD_SET_NOT_NULL"; /** Constant for the sql query to drop not null constraint of table field.

*/ private static final String QUERY_DROP_NOT_NULL = "Q_ALTER_FIELD_DROP_NOT_NULL"; /** Constant for the sql replacement of the field name.

*/ private static final String REPLACEMENT_FIELD_NAME = "${fieldname}"; /** Constant for the sql replacement of the field type.

*/ private static final String REPLACEMENT_FIELD_TYPE = "${fieldtype}"; /** Constant for the sql replacement of the field default value.

*/ private static final String REPLACEMENT_FIELD_DEFAULT_VALUE = "${defaultvalue}"; /** Constant for the SQL query properties.

*/ private static final String QUERY_PROPERTY_FILE_ORACLE = "cms_alter_remaining_queries.properties"; /** SQL constant. */ private static final String DROP_NOT_NULL = "0"; /** SQL constant. */ private static final String SET_NOT_NULL = "1"; /** SQL constant. */ private static final String NO_CHANGE = "2"; /** SQL constant. */ private static final String DV_NO_CHANGE = null; /** SQL constant. */ private static final String DV_DROP = "-- droping the default value --"; /** * Array contains differences after upgrade and clean install of OpenCms 7.0.1.

*

     *  [0] - table name
     *  [1] - field name
     *  [3] - database type of the field
     *  [4] - SET/DROP NULL
     *  [5] - DEFAULT VALUE information
     * 
*/ private static final String[][] DB_ARRAY = { {"cms_groups", "group_name", "varchar(128)", NO_CHANGE, DV_NO_CHANGE}, {"cms_groups", "group_ou", "", SET_NOT_NULL, DV_NO_CHANGE}, {"cms_offline_properties", "property_value", "varchar(2048)", NO_CHANGE, DV_NO_CHANGE}, {"cms_offline_propertydef", "propertydef_type", "", NO_CHANGE, DV_DROP}, {"cms_offline_resources", "date_content", "", NO_CHANGE, DV_DROP}, {"cms_offline_resources", "project_lastmodified", "", SET_NOT_NULL, DV_NO_CHANGE}, {"cms_offline_resources", "resource_version", "", SET_NOT_NULL, DV_DROP}, {"cms_offline_structure", "resource_path", "varchar(1024)", DROP_NOT_NULL, DV_NO_CHANGE}, {"cms_offline_structure", "structure_state", "integer", NO_CHANGE, DV_NO_CHANGE}, {"cms_offline_structure", "date_released", "", SET_NOT_NULL, DV_NO_CHANGE}, {"cms_offline_structure", "date_expired", "", SET_NOT_NULL, DV_NO_CHANGE}, {"cms_offline_structure", "structure_version", "", NO_CHANGE, DV_DROP}, {"cms_online_properties", "property_value", "varchar(2048)", NO_CHANGE, DV_NO_CHANGE}, {"cms_online_propertydef", "propertydef_type", "", NO_CHANGE, DV_DROP}, {"cms_online_resources", "resource_state", "integer", NO_CHANGE, DV_NO_CHANGE}, {"cms_online_resources", "date_content", "", NO_CHANGE, DV_DROP}, {"cms_online_resources", "project_lastmodified", "", SET_NOT_NULL, DV_NO_CHANGE}, {"cms_online_resources", "resource_version", "", NO_CHANGE, DV_DROP}, {"cms_online_structure", "resource_path", "varchar(1024)", DROP_NOT_NULL, DV_NO_CHANGE}, {"cms_online_structure", "structure_state", "integer", NO_CHANGE, DV_NO_CHANGE}, {"cms_online_structure", "structure_version", "", NO_CHANGE, DV_DROP}, {"cms_projectresources", "resource_path", "varchar(1024)", NO_CHANGE, DV_NO_CHANGE}, {"cms_projects", "project_ou", "", SET_NOT_NULL, DV_NO_CHANGE}, {"cms_publish_history", "resource_path", "varchar(1024)", NO_CHANGE, DV_NO_CHANGE}, {"cms_resource_locks", "resource_path", "", DROP_NOT_NULL, DV_NO_CHANGE}, {"cms_staticexport_links", "link_rfs_path", "varchar(1024)", DROP_NOT_NULL, DV_NO_CHANGE}, {"cms_staticexport_links", "link_parameter", "varchar(1024)", NO_CHANGE, DV_NO_CHANGE}, {"cms_staticexport_links", "link_timestamp", "", SET_NOT_NULL, DV_NO_CHANGE}, {"cms_users", "user_name", "varchar(128)", NO_CHANGE, DV_NO_CHANGE}, {"cms_users", "user_password", "varchar(64)", NO_CHANGE, DV_NO_CHANGE}, {"cms_users", "user_firstname", "varchar(128)", NO_CHANGE, DV_NO_CHANGE}, {"cms_users", "user_lastname", "varchar(128)", NO_CHANGE, DV_NO_CHANGE}, {"cms_users", "user_email", "varchar(128)", NO_CHANGE, DV_NO_CHANGE}, {"cms_users", "user_ou", "", SET_NOT_NULL, DV_NO_CHANGE}, {"cms_users", "user_datecreated", "", NO_CHANGE, DV_DROP} }; /** * Constructor.

* * @throws IOException if the sql queries properties file could not be read */ public CmsUpdateDBAlterTables() throws IOException { super(); loadQueryProperties(getPropertyFileLocation() + QUERY_PROPERTY_FILE_ORACLE); } /** * @see org.opencms.setup.db.A_CmsUpdateDBPart#internalExecute(org.opencms.setup.CmsSetupDb) */ @Override protected void internalExecute(CmsSetupDb dbCon) throws SQLException { super.internalExecute(dbCon); fixSchema(dbCon); } /** * Initializes the replacer.

* * @param replacer the replacer * @param tableName the table name * @param fieldName the field name */ private void initReplacer(Map replacer, String tableName, String fieldName) { replacer.clear(); replacer.put(REPLACEMENT_TABLENAME, tableName); replacer.put(REPLACEMENT_FIELD_NAME, fieldName); } /** * Fixes the database schema.

* * @param dbCon database connection * * @throws SQLException if something goes wrong changing the schema */ private void fixSchema(CmsSetupDb dbCon) throws SQLException { Map replacer = new HashMap(); String tableName; String fieldName; String fieldType; String nullAcceptInfo; String defaultValue; String query; for (int i = 0; i < DB_ARRAY.length; i++) { tableName = DB_ARRAY[i][0]; fieldName = DB_ARRAY[i][1]; fieldType = DB_ARRAY[i][2]; nullAcceptInfo = DB_ARRAY[i][3]; defaultValue = DB_ARRAY[i][4]; if ((fieldType != null) && (fieldType.length() > 0)) { initReplacer(replacer, tableName, fieldName); replacer.put(REPLACEMENT_FIELD_TYPE, fieldType); query = readQuery(QUERY_ALTER_FIELD); dbCon.updateSqlStatement(query, replacer, null); } if ((nullAcceptInfo != null) && (!nullAcceptInfo.equals(NO_CHANGE))) { String q; if (nullAcceptInfo.equals(DROP_NOT_NULL)) { q = QUERY_DROP_NOT_NULL; } else { q = QUERY_SET_NOT_NULL; } query = readQuery(q); initReplacer(replacer, tableName, fieldName); dbCon.updateSqlStatement(query, replacer, null); } if ((defaultValue != null) && (defaultValue.length() > 0)) { initReplacer(replacer, tableName, fieldName); if (defaultValue.equals(DV_DROP)) { query = readQuery(QUERY_DROP_DEFAULT_VALUE); dbCon.updateSqlStatement(query, replacer, null); } else { query = readQuery(QUERY_SET_DEFAULT_VALUE); replacer.put(REPLACEMENT_FIELD_DEFAULT_VALUE, defaultValue); dbCon.updateSqlStatement(query, replacer, null); } } } } }





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