Examples of org.opengis.referencing.FactoryException

org.opengis.referencing.FactoryException
Thrown when a {@linkplain Factory factory} can't create an instanceof the requested object. It may be a failure to create a {@linkplain org.opengis.referencing.datum.Datum datum}, a {@linkplain org.opengis.referencing.cs.CoordinateSystem coordinate system}, a {@linkplain org.opengis.referencing.ReferenceSystem reference system} or a{@linkplain org.opengis.referencing.operation.CoordinateOperation coordinate operation}. If the failure is caused by an illegal authority code, then the actual exception should be {@link NoSuchAuthorityCodeException}. Otherwise, if the failure is caused by some error in the underlying database (e.g. {@link java.io.IOException} or{@link java.sql.SQLException}), then this cause should be specified. @author Martin Desruisseaux (IRD) @since GeoAPI 1.0 @see org.opengis.referencing.operation.CoordinateOperationFactory @source $URL$

            if( hint instanceof String ){
                String name = (String) hint;
                try {
                    dataSource = (DataSource) GeoTools.getInitialContext(userHints).lookup(name);
                } catch (NamingException e) {
                    throw new FactoryException("A EPSG_DATA_SOURCE hint is required:"+e);
                }
                hints.put(Hints.EPSG_DATA_SOURCE, dataSource );
            }
            else if( hint instanceof DataSource ){
                dataSource = (DataSource) hint;
                hints.put(Hints.EPSG_DATA_SOURCE, dataSource );
            }
            else {
                throw new FactoryException("A EPSG_DATA_SOURCE hint is required.");
            }
        }
        else {
            throw new FactoryException("A EPSG_DATA_SOURCE hint is required.");
        }
    }

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                table.nextColumn();
                table.write(s);
                table.nextLine();
            }
        } catch (SQLException exception) {
            throw new FactoryException(exception);
        }
        return table.toString();
    }

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        if (result.wasNull()) {
            final ResultSetMetaData metadata = result.getMetaData();
            final String column = metadata.getColumnName(columnFault);
            final String table  = metadata.getTableName (columnFault);
            result.close();
            throw new FactoryException(
                    Errors.format(ErrorKeys.NULL_VALUE_IN_TABLE_$3, code, column, table));
        }
        return str.trim();
    }

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        if (result.wasNull()) {
            final ResultSetMetaData metadata = result.getMetaData();
            final String column = metadata.getColumnName(columnIndex);
            final String table  = metadata.getTableName (columnIndex);
            result.close();
            throw new FactoryException(
                    Errors.format(ErrorKeys.NULL_VALUE_IN_TABLE_$3, code, column, table));
        }
    }

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            return newValue;
        }
        if (oldValue.equals(newValue)) {
            return oldValue;
        }
        throw new FactoryException(Errors.format(ErrorKeys.DUPLICATED_VALUES_$1, code));
    }

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                final ResultSet result = stmt.executeQuery();
                final boolean  present = result.next();
                result.close();
                if (present) {
                    if (index >= 0) {
                        throw new FactoryException(Errors.format(ErrorKeys.DUPLICATED_VALUES_$1, code));
                    }
                    index = (i < 0) ? lastObjectType : i;
                    if (isPrimaryKey) {
                        // Don't scan other tables, since primary keys should be unique.
                        // Note that names may be duplicated, so we don't stop for names.

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                    // TODO: check unit consistency here.
                } else if (b!=0 && c!=0) {
                    unit = (b == c) ? base : base.times(b / c);
                } else {
                    // TODO: provide a localized message.
                    throw new FactoryException("Unsupported unit: " + code);
                }
                returnValue = ensureSingleton(unit, returnValue, code);
            }
            result.close();
        }

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                if (inverseFlattening == 0) {
                    if (semiMinorAxis == 0) {
                        // Both are null, which is not allowed.
                        final String column = result.getMetaData().getColumnName(3);
                        result.close();
                        throw new FactoryException(Errors.format(ErrorKeys.NULL_VALUE_IN_TABLE_$3, code, column));
                    } else {
                        // We only have semiMinorAxis defined -> it's OK
                        ellipsoid = factories.getDatumFactory().createEllipsoid(
                                    properties, semiMajorAxis, semiMinorAxis, unit);
                    }

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                    datum = factory.createVerticalDatum(properties, VerticalDatumType.GEOIDAL);
                } else if (type.equals("engineering")) {
                    datum = factory.createEngineeringDatum(properties);
                } else {
                    result.close();
                    throw new FactoryException(Errors.format(ErrorKeys.UNKNOW_TYPE_$1, type));
                }
                returnValue = ensureSingleton(datum, returnValue, code);
                if (result == null) {
                    // Bypass the 'result.close()' line below:
                    // the ResultSet has already been closed.

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                    } else if (orientation.equalsIgnoreCase("Geocentre > equator/90dE")) {
                        direction = AxisDirection.EAST;
                    } else if (orientation.equalsIgnoreCase("Geocentre > north pole")) {
                        direction = AxisDirection.NORTH;
                    } else {
                        throw new FactoryException(exception);
                    }
                }
                final AxisName an = getAxisName(nameCode);
                final Map<String,Object> properties = generateProperties(an.name, epsg, an.description);
                final CSFactory factory = factories.getCSFactory();

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