Package org.apache.mahout.cf.taste.common

Examples of org.apache.mahout.cf.taste.common.TasteException

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      rs = stmt.executeQuery();
      rs.next();
      return rs.getInt(1);
    } catch (SQLException sqle) {
      log.warn("Exception while retrieving number of " + name, sqle);
      throw new TasteException(sqle);
    } finally {
      IOUtils.quietClose(rs, stmt, conn);
    }
  }
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      log.debug("Executing SQL update: {}", setPreferenceSQL);
      stmt.executeUpdate();

    } catch (SQLException sqle) {
      log.warn("Exception while setting preference", sqle);
      throw new TasteException(sqle);
    } finally {
      IOUtils.quietClose(null, stmt, conn);
    }
  }
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      log.debug("Executing SQL update: {}", removePreferenceSQL);
      stmt.executeUpdate();

    } catch (SQLException sqle) {
      log.warn("Exception while removing preference", sqle);
      throw new TasteException(sqle);
    } finally {
      IOUtils.quietClose(null, stmt, conn);
    }
  }
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        statement.setFetchDirection(ResultSet.FETCH_UNKNOWN);
        log.debug("Executing SQL query: {}", getUsersSQL);
        resultSet = statement.executeQuery();
      } catch (SQLException sqle) {
        close();
        throw new TasteException(sqle);
      }
    }
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        statement.setFetchDirection(ResultSet.FETCH_FORWARD);
        log.debug("Executing SQL query: {}", getItemsSQL);
        resultSet = statement.executeQuery();
      } catch (SQLException sqle) {
        close();
        throw new TasteException(sqle);
      }
    }
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  private static Properties getPropertiesFromFile(File file) throws TasteException {
    try {
      return getPropertiesFromStream(new FileInputStream(file));
    } catch (FileNotFoundException fnfe) {
      throw new TasteException(fnfe);
    }
  }
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        return props;
      } finally {
        IOUtils.quietClose(is);
      }
    } catch (IOException ioe) {
      throw new TasteException(ioe);
    }
  }
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      log.debug("Executing SQL query: {}", getDiffSQL);
      rs = stmt.executeQuery();
      return rs.next() ? new FixedRunningAverage(rs.getInt(1), rs.getDouble(2)) : null;
    } catch (SQLException sqle) {
      log.warn("Exception while retrieving diff", sqle);
      throw new TasteException(sqle);
    } finally {
      IOUtils.quietClose(rs, stmt, conn);
    }
  }
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        result[i] = new FixedRunningAverage(rs.getInt(1), rs.getDouble(2));
        i++;
      }
    } catch (SQLException sqle) {
      log.warn("Exception while retrieving diff", sqle);
      throw new TasteException(sqle);
    } finally {
      IOUtils.quietClose(rs, stmt, conn);
    }
    return result;
  }
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        }
      }
      return null;
    } catch (SQLException sqle) {
      log.warn("Exception while retrieving average item pref", sqle);
      throw new TasteException(sqle);
    } finally {
      IOUtils.quietClose(rs, stmt, conn);
    }
  }
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