001    /*
002     * Sonar, open source software quality management tool.
003     * Copyright (C) 2008-2012 SonarSource
004     * mailto:contact AT sonarsource DOT com
005     *
006     * Sonar is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU Lesser General Public
008     * License as published by the Free Software Foundation; either
009     * version 3 of the License, or (at your option) any later version.
010     *
011     * Sonar is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014     * Lesser General Public License for more details.
015     *
016     * You should have received a copy of the GNU Lesser General Public
017     * License along with Sonar; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02
019     */
020    package org.sonar.core.persistence;
021    
022    import org.apache.commons.io.output.NullWriter;
023    import org.apache.ibatis.io.Resources;
024    import org.apache.ibatis.jdbc.ScriptRunner;
025    
026    import java.io.PrintWriter;
027    import java.sql.Connection;
028    
029    /**
030     * Util class to create Sonar database tables
031     *
032     * @since 2.12
033     */
034    public final class DdlUtils {
035    
036      private DdlUtils() {
037      }
038    
039      public static boolean supportsDialect(String dialect) {
040        return "derby".equals(dialect);
041      }
042    
043      /**
044       * The connection is commited in this method but not closed.
045       */
046      public static void createSchema(Connection connection, String dialect) {
047        executeScript(connection, "org/sonar/core/persistence/schema-" + dialect + ".ddl");
048        executeScript(connection, "org/sonar/core/persistence/rows-" + dialect + ".sql");
049      }
050    
051      private static void executeScript(Connection connection, String path) {
052        ScriptRunner scriptRunner = newScriptRunner(connection);
053        try {
054          scriptRunner.runScript(Resources.getResourceAsReader(path));
055          connection.commit();
056    
057        } catch (Exception e) {
058          throw new IllegalStateException("Fail to restore: " + path, e);
059        }
060      }
061    
062      private static ScriptRunner newScriptRunner(Connection connection) {
063        ScriptRunner scriptRunner = new ScriptRunner(connection);
064        scriptRunner.setDelimiter(";");
065        scriptRunner.setStopOnError(true);
066        scriptRunner.setLogWriter(new PrintWriter(new NullWriter()));
067        return scriptRunner;
068      }
069    }