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.jpa.entity; 021 022 import org.apache.commons.lang.builder.ReflectionToStringBuilder; 023 import org.apache.commons.lang.builder.ToStringStyle; 024 025 import javax.persistence.*; 026 027 import java.sql.Connection; 028 import java.sql.ResultSet; 029 import java.sql.SQLException; 030 import java.sql.Statement; 031 032 @Entity 033 @Table(name = SchemaMigration.TABLE_NAME, uniqueConstraints = {@UniqueConstraint(columnNames = {"version"})}) 034 public class SchemaMigration { 035 036 public static final int VERSION_UNKNOWN = -1; 037 038 public static final int LAST_VERSION = 263; 039 public static final int VERSION_2_13 = 241; 040 041 public static final String TABLE_NAME = "schema_migrations"; 042 043 @Id 044 @Column(name = "version", updatable = true) 045 private String version; 046 047 public String getVersion() { 048 return version; 049 } 050 051 public void setVersion(String s) { 052 this.version = s; 053 } 054 055 public void setVersion(int i) { 056 this.version = String.valueOf(i); 057 } 058 059 public static int getCurrentVersion(Connection connection) { 060 Statement stmt = null; 061 ResultSet rs = null; 062 int version = VERSION_UNKNOWN; 063 try { 064 stmt = connection.createStatement(); 065 rs = stmt.executeQuery("SELECT version FROM " + SchemaMigration.TABLE_NAME); 066 while (rs.next()) { 067 int i = Integer.parseInt(rs.getString(1)); 068 if (i > version) { 069 version = i; 070 } 071 } 072 } catch (SQLException e) { 073 // ignore 074 } finally { 075 close(rs); 076 close(stmt); 077 } 078 079 return version; 080 } 081 082 private static void close(ResultSet rs) { 083 if (rs != null) { 084 try { 085 rs.close(); 086 } catch (SQLException e) { 087 // why does close() throw a checked-exception ??? 088 } 089 } 090 } 091 092 private static void close(Statement st) { 093 if (st != null) { 094 try { 095 st.close(); 096 } catch (SQLException e) { 097 // why does close() throw a checked-exception ??? 098 } 099 } 100 } 101 102 @Override 103 public String toString() { 104 return new ReflectionToStringBuilder(this, ToStringStyle.SHORT_PREFIX_STYLE).toString(); 105 } 106 }