コード例 #1
0
 // JDBC Utils
 static void execute(String sql) throws SQLException {
   Connection connection = null;
   try {
     connection = getNewConnection();
     connection.createStatement().execute(sql);
   } catch (SQLException e) {
     throw e;
   } finally {
     closeConnection(connection);
   }
 }
コード例 #2
0
  public static synchronized void checkEvolutionsState() {
    if (DB.datasource != null && evolutionsDirectory.exists()) {
      List<Evolution> evolutionScript = getEvolutionScript();
      Connection connection = null;
      try {
        connection = getNewConnection();
        ResultSet rs =
            connection
                .createStatement()
                .executeQuery(
                    "select id, hash, apply_script, revert_script, state, last_problem from play_evolutions where state like 'applying_%'");
        if (rs.next()) {
          int revision = rs.getInt("id");
          String state = rs.getString("state");
          String hash = rs.getString("hash").substring(0, 7);
          String script = "";
          if (state.equals("applying_up")) {
            script = rs.getString("apply_script");
          } else {
            script = rs.getString("revert_script");
          }
          script =
              "# --- Rev:"
                  + revision
                  + ","
                  + (state.equals("applying_up") ? "Ups" : "Downs")
                  + " - "
                  + hash
                  + "\n\n"
                  + script;
          String error = rs.getString("last_problem");
          throw new InconsistentDatabase(script, error, revision);
        }
      } catch (SQLException e) {
        throw new UnexpectedException(e);
      } finally {
        closeConnection(connection);
      }

      if (!evolutionScript.isEmpty()) {
        throw new InvalidDatabaseRevision(toHumanReadableScript(evolutionScript));
      }
    }
  }
コード例 #3
0
  public static synchronized Stack<Evolution> listDatabaseEvolutions() {
    Stack<Evolution> evolutions = new Stack<Evolution>();
    evolutions.add(new Evolution(0, "", "", false));
    Connection connection = null;
    try {
      connection = getNewConnection();
      String tableName = "play_evolutions";
      boolean tableExists = true;
      ResultSet rs = connection.getMetaData().getTables(null, null, tableName, null);

      if (!rs.next()) {
        // Table in lowercase does not exist
        // oracle gives table names in upper case
        tableName = tableName.toUpperCase();
        Logger.trace("Checking " + tableName);
        rs.close();
        rs = connection.getMetaData().getTables(null, null, tableName, null);
        // Does it exist?
        if (!rs.next()) {
          // did not find it in uppercase either
          tableExists = false;
        }
      }

      // Do we have a
      if (tableExists) {
        ResultSet databaseEvolutions =
            connection
                .createStatement()
                .executeQuery("select id, hash, apply_script, revert_script from play_evolutions");
        while (databaseEvolutions.next()) {
          Evolution evolution =
              new Evolution(
                  databaseEvolutions.getInt(1),
                  databaseEvolutions.getString(3),
                  databaseEvolutions.getString(4),
                  false);
          evolutions.add(evolution);
        }
      } else {
        // If you are having problems with the default datatype text (clob for Oracle), you can
        // specify your own datatype using the 'evolution.PLAY_EVOLUTIONS.textType'-property
        String textDataType = Play.configuration.getProperty("evolution.PLAY_EVOLUTIONS.textType");
        if (textDataType == null) {
          if (isOracleDialectInUse()) {
            textDataType = "clob";
          } else {
            textDataType = "text";
          }
        }

        execute(
            "create table play_evolutions (id int not null primary key, hash varchar(255) not null, applied_at timestamp not null, apply_script "
                + textDataType
                + ", revert_script "
                + textDataType
                + ", state varchar(255), last_problem "
                + textDataType
                + ")");
      }
    } catch (SQLException e) {
      Logger.error(e, "SQL error while checking play evolutions");
    } finally {
      closeConnection(connection);
    }
    Collections.sort(evolutions);
    return evolutions;
  }
コード例 #4
0
  public static synchronized boolean applyScript(boolean runScript) {
    try {
      Connection connection = getNewConnection();
      int applying = -1;
      try {
        for (Evolution evolution : getEvolutionScript()) {
          applying = evolution.revision;

          // Insert into logs
          if (evolution.applyUp) {
            PreparedStatement ps =
                connection.prepareStatement(
                    "insert into play_evolutions values(?, ?, ?, ?, ?, ?, ?)");
            ps.setInt(1, evolution.revision);
            ps.setString(2, evolution.hash);
            ps.setDate(3, new Date(System.currentTimeMillis()));
            ps.setString(4, evolution.sql_up);
            ps.setString(5, evolution.sql_down);
            ps.setString(6, "applying_up");
            ps.setString(7, "");
            ps.execute();
          } else {
            execute(
                "update play_evolutions set state = 'applying_down' where id = "
                    + evolution.revision);
          }
          // Execute script
          if (runScript) {
            for (CharSequence sql :
                new SQLSplitter((evolution.applyUp ? evolution.sql_up : evolution.sql_down))) {
              final String s = sql.toString().trim();
              if (StringUtils.isEmpty(s)) {
                continue;
              }
              connection.createStatement().execute(s);
            }
          }
          // Insert into logs
          if (evolution.applyUp) {
            execute(
                "update play_evolutions set state = 'applied' where id = " + evolution.revision);
          } else {
            execute("delete from play_evolutions where id = " + evolution.revision);
          }
        }
        return true;
      } catch (Exception e) {
        String message = e.getMessage();
        if (e instanceof SQLException) {
          SQLException ex = (SQLException) e;
          message += " [ERROR:" + ex.getErrorCode() + ", SQLSTATE:" + ex.getSQLState() + "]";
        }
        PreparedStatement ps =
            connection.prepareStatement("update play_evolutions set last_problem = ? where id = ?");
        ps.setString(1, message);
        ps.setInt(2, applying);
        ps.execute();
        closeConnection(connection);
        Logger.error(e, "Can't apply evolution");
        return false;
      }
    } catch (Exception e) {
      throw new UnexpectedException(e);
    }
  }