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 */
020package org.sonar.core.persistence.dialect;
021
022import org.hibernate.dialect.Dialect;
023import org.hibernate.id.PersistentIdentifierGenerator;
024import org.hibernate.id.SequenceGenerator;
025import org.hibernate.type.Type;
026
027import java.util.Properties;
028
029/**
030 * if the underlying database is PostgreSQL, the sequence
031 * naming convention is different and includes the primary key
032 * column name
033 *
034 * @since 1.10
035 */
036public class PostgreSQLSequenceGenerator extends SequenceGenerator {
037
038  public static final String SEQUENCE_NAME_SEPARATOR = "_";
039  public static final String SEQUENCE_NAME_SUFFIX = "seq";
040
041  @Override
042  public void configure(Type type, Properties params, Dialect dialect) {
043
044    String tableName = params.getProperty(PersistentIdentifierGenerator.TABLE);
045    String columnName = params.getProperty(PersistentIdentifierGenerator.PK);
046
047    if (tableName != null && columnName != null) {
048      StringBuilder sequenceNameBuilder = new StringBuilder();
049
050      sequenceNameBuilder.append(tableName);
051      sequenceNameBuilder.append(SEQUENCE_NAME_SEPARATOR);
052      sequenceNameBuilder.append(columnName);
053      sequenceNameBuilder.append(SEQUENCE_NAME_SEPARATOR);
054      sequenceNameBuilder.append(SEQUENCE_NAME_SUFFIX);
055
056      params.setProperty(SEQUENCE, sequenceNameBuilder.toString());
057    }
058
059    super.configure(type, params, dialect);
060  }
061
062}