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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;

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 creates all the indexes that are used in the database version 7.

* * @since 7.0.0 */ public class CmsUpdateDBCreateIndexes7 extends A_CmsUpdateDBPart { /** Constant for the sql query to read the indexes.

*/ protected static final String QUERY_SHOW_INDEX = "QUERY_SHOW_INDEX"; /** Constant for the replacement of the tablename in the sql query.

*/ protected static final String REPLACEMENT_TABLENAME = "${tablename}"; /** Constant for the field of the index name.

*/ private static final String FIELD_INDEX = "KEY_NAME"; /** Constant for the primary key.

*/ private static final String PRIMARY_KEY = "PRIMARY"; /** Constant for the SQL query properties.

*/ private static final String QUERY_PROPERTY_FILE = "cms_add_new_indexes_queries.properties"; /** Constant for the replacement of the indexes to drop.

*/ private static final String REPLACEMENT_INDEXES = "${dropindexes}"; /** * Constructor.

* * @throws IOException if the query properties cannot be read */ public CmsUpdateDBCreateIndexes7() 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) { System.out.println(new Exception().getStackTrace()[0].toString()); List elements = new ArrayList(); elements.add("CMS_CONTENTS"); elements.add("CMS_GROUPS"); elements.add("CMS_GROUPUSERS"); elements.add("CMS_OFFLINE_ACCESSCONTROL"); elements.add("CMS_OFFLINE_CONTENTS"); elements.add("CMS_OFFLINE_PROPERTIES"); elements.add("CMS_OFFLINE_PROPERTYDEF"); elements.add("CMS_OFFLINE_RESOURCES"); elements.add("CMS_OFFLINE_STRUCTURE"); elements.add("CMS_ONLINE_ACCESSCONTROL"); elements.add("CMS_ONLINE_PROPERTIES"); elements.add("CMS_ONLINE_PROPERTYDEF"); elements.add("CMS_ONLINE_RESOURCES"); elements.add("CMS_ONLINE_STRUCTURE"); elements.add("CMS_PROJECTRESOURCES"); elements.add("CMS_PROJECTS"); elements.add("CMS_PUBLISH_HISTORY"); elements.add("CMS_STATICEXPORT_LINKS"); elements.add("CMS_USERS"); // iterate the queries for (Iterator it = elements.iterator(); it.hasNext();) { String query = it.next(); // Check if the table exists if (dbCon.hasTableOrColumn(query, null)) { HashMap replacer = new HashMap(); replacer.put(REPLACEMENT_INDEXES, getIndexesToDrop(dbCon, query)); try { dbCon.updateSqlStatement(readQuery(query), replacer, null); } catch (SQLException e) { e.printStackTrace(); } } else { System.out.println("Table " + query + "does not exist."); } } } /** * Returns the string of the indexes that shall be dropped before adding the final new indexes.

* * @param dbCon the connection to the database * @param tablename the table to drop the indexes from * * @return the string to drop the temporary indexes */ private String getIndexesToDrop(CmsSetupDb dbCon, String tablename) { List indexes = new ArrayList(); String tableIndex = readQuery(QUERY_SHOW_INDEX); Map replacer = new HashMap(); replacer.put(REPLACEMENT_TABLENAME, tablename); CmsSetupDBWrapper db = null; try { db = dbCon.executeSqlStatement(tableIndex, replacer); while (db.getResultSet().next()) { String index = db.getResultSet().getString(FIELD_INDEX); if (!indexes.contains(index)) { indexes.add(index); } } } catch (SQLException e) { e.printStackTrace(); } finally { if (db != null) { db.close(); } } StringBuffer dropIndex = new StringBuffer(); for (Iterator it = indexes.iterator(); it.hasNext();) { String index = it.next(); if (index.equals(PRIMARY_KEY)) { dropIndex.append("DROP PRIMARY KEY, "); } else { dropIndex.append("DROP INDEX "); dropIndex.append(index); dropIndex.append(", "); } } return dropIndex.toString(); } }





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