Package org.geotools.referencing.factory

Class FallbackAuthorityFactory

Object

AbstractFactory

ReferencingFactory

AbstractAuthorityFactory

AuthorityFactoryAdapter

FallbackAuthorityFactory

All Implemented Interfaces:

AuthorityFactory, Factory, Factory, OptionalFactory, RegistrableFactory

public class FallbackAuthorityFactory
extends AuthorityFactoryAdapter

A factory which delegates all object creation to a primary factory, and fallback on an other one if the primary factory failed.

Since:

2.3

Author:

Martin Desruisseaux

Field Summary

Fields inherited from class ReferencingFactory

LOGGER

Fields inherited from class AbstractFactory

hints, MAXIMUM_PRIORITY, MINIMUM_PRIORITY, NORMAL_PRIORITY, priority

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	FallbackAuthorityFactory(AuthorityFactory primary, AuthorityFactory fallback)	Wraps a primary and a fallback authority factories.

Method Summary

Modifier and Type	Method	Description
static <T extends AuthorityFactory> T	create(Class<T> type, Collection<T> factories)	Wraps the specified authority factories.
static AuthorityFactory	create(Collection<? extends AuthorityFactory> factories)	Wraps the specified authority factories.
CartesianCS	createCartesianCS(String code)	Creates a cartesian coordinate system from a code.
CompoundCRS	createCompoundCRS(String code)	Creates a 3D coordinate reference system from a code.
CoordinateOperation	createCoordinateOperation(String code)	Creates an operation from a single operation code.
CoordinateReferenceSystem	createCoordinateReferenceSystem(String code)	Returns an arbitrary coordinate reference system from a code.
CoordinateSystem	createCoordinateSystem(String code)	Returns an arbitrary coordinate system from a code.
CoordinateSystemAxis	createCoordinateSystemAxis(String code)	Returns a coordinate system axis from a code.
CylindricalCS	createCylindricalCS(String code)	Creates a cylindrical coordinate system from a code.
Datum	createDatum(String code)	Returns an arbitrary datum from a code.
DerivedCRS	createDerivedCRS(String code)	Creates a derived coordinate reference system from a code.
Ellipsoid	createEllipsoid(String code)	Returns an ellipsoid from a code.
EllipsoidalCS	createEllipsoidalCS(String code)	Creates an ellipsoidal coordinate system from a code.
EngineeringCRS	createEngineeringCRS(String code)	Creates a engineering coordinate reference system from a code.
EngineeringDatum	createEngineeringDatum(String code)	Creates a engineering datum from a code.
Extent	createExtent(String code)	Returns a extent (usually an area of validity) from a code.
Set<CoordinateOperation>	createFromCoordinateReferenceSystemCodes(String sourceCRS, String targetCRS)	Creates an operation from coordinate reference system codes.
GeocentricCRS	createGeocentricCRS(String code)	Returns a geocentric coordinate reference system from a code.
GeodeticDatum	createGeodeticDatum(String code)	Returns a geodetic datum from a code.
GeographicCRS	createGeographicCRS(String code)	Returns a geographic coordinate reference system from a code.
ImageCRS	createImageCRS(String code)	Creates a image coordinate reference system from a code.
ImageDatum	createImageDatum(String code)	Creates a image datum from a code.
IdentifiedObject	createObject(String code)	Returns an arbitrary object from a code.
OperationMethod	createOperationMethod(String code)	Creates an operation method from a code.
ParameterDescriptor	createParameterDescriptor(String code)	Creates a parameter descriptor from a code.
PolarCS	createPolarCS(String code)	Creates a polar coordinate system from a code.
PrimeMeridian	createPrimeMeridian(String code)	Returns a prime meridian from a code.
ProjectedCRS	createProjectedCRS(String code)	Returns a projected coordinate reference system from a code.
SphericalCS	createSphericalCS(String code)	Creates a spherical coordinate system from a code.
TemporalCRS	createTemporalCRS(String code)	Creates a temporal coordinate reference system from a code.
TemporalDatum	createTemporalDatum(String code)	Creates a temporal datum from a code.
TimeCS	createTimeCS(String code)	Creates a temporal coordinate system from a code.
Unit<?>	createUnit(String code)	Returns an unit from a code.
VerticalCRS	createVerticalCRS(String code)	Creates a vertical coordinate reference system from a code.
VerticalCS	createVerticalCS(String code)	Creates a vertical coordinate system from a code.
VerticalDatum	createVerticalDatum(String code)	Creates a vertical datum from a code.
Set<String>	getAuthorityCodes(Class<? extends IdentifiedObject> type)	Returns the set of authority codes for the specified type.
InternationalString	getDescriptionText(String code)	Returns a description for the object identified by the specified code.
IdentifiedObjectFinder	getIdentifiedObjectFinder(Class<? extends IdentifiedObject> type)	Returns a finder which can be used for looking up unidentified objects.
protected void	notifySuccess(String method, String code, CRSAuthorityFactory factory, CoordinateReferenceSystem crs)	Log a message when a CRS is found.

Methods inherited from class AuthorityFactoryAdapter

dispose, getAuthority, getAuthorityFactory, getBackingStoreDescription, getCoordinateOperationAuthorityFactory, getCRSAuthorityFactory, getCSAuthorityFactory, getDatumAuthorityFactory, getVendor, isAvailable, toBackingFactoryCode

Methods inherited from class AbstractAuthorityFactory

noSuchAuthorityCode, trimAuthority

Methods inherited from class ReferencingFactory

ensureNonNull

Methods inherited from class AbstractFactory

addImplementationHints, equals, getImplementationHints, getPriority, hashCode, onDeregistration, onRegistration, toString

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface Factory

getImplementationHints

Constructor Details

FallbackAuthorityFactory

protected FallbackAuthorityFactory(AuthorityFactory primary,
 AuthorityFactory fallback)

Wraps a primary and a fallback authority factories.

This constructor is protected because subclasses must declare which of the DatumAuthorityFactory, CSAuthorityFactory, CRSAuthorityFactory and CoordinateOperationAuthorityFactory interfaces they choose to implement.

Parameters:

primary - The primary factory.

fallback - The factory to use as a fallback if the primary factory failed.

See Also:

• create(java.lang.Class<T>, java.util.Collection<T>)

Method Details

create

public static <T extends AuthorityFactory> T create(Class<T> type,
 Collection<T> factories)
                                             throws FactoryNotFoundException,
ClassCastException

Wraps the specified authority factories. If the specified collection contains more than one element, then a chain of FallbackAuthorityFactory instances is created.

Type Parameters:

T - The interface to implement.

Parameters:

type - The interface to implement. Should be one of DatumAuthorityFactory, CSAuthorityFactory, CRSAuthorityFactory or CoordinateOperationAuthorityFactory.

factories - The factories to wrap, in iteration order.

Returns:

The given factories as a chain of fallback factories.

Throws:

FactoryNotFoundException - if the collection doesn't contains at least one element.

ClassCastException - if type is illegal.

create

public static AuthorityFactory create(Collection<? extends AuthorityFactory> factories)
                               throws FactoryNotFoundException

Wraps the specified authority factories. If the specified collection contains more than one element, then a chain of FallbackAuthorityFactory instances is created. The type is inferred from the factories found in the collection.

Consider using create(type, factories) instead when the type is known at compile time.

Parameters:

factories - The factories to wrap, in iteration order.

Returns:

The given factories as a chain of fallback factories.

Throws:

FactoryNotFoundException - if the collection doesn't contains at least one element.

Since:

2.4

getAuthorityCodes

public Set<String> getAuthorityCodes(Class<? extends IdentifiedObject> type)
                              throws FactoryException

Returns the set of authority codes for the specified type. The default implementation returns the union of the authority codes from the primary and the fallback factories.

Specified by:

getAuthorityCodes in interface AuthorityFactory

Overrides:

getAuthorityCodes in class AuthorityFactoryAdapter

Parameters:

type - The spatial reference objects type.

Returns:

The set of authority codes for spatial reference objects of the given type. If this factory doesn't contains any object of the given type, then this method returns an empty set.

Throws:

FactoryException - if access to the underlying database failed.

getDescriptionText

public InternationalString getDescriptionText(String code)
                                       throws FactoryException

Returns a description for the object identified by the specified code.

Specified by:

getDescriptionText in interface AuthorityFactory

Overrides:

getDescriptionText in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

A description of the object, or null if the object corresponding to the specified code has no description.

Throws:

NoSuchAuthorityCodeException - if the specified code was not found.

FactoryException - if the query failed for some other reason.

createObject

public IdentifiedObject createObject(String code)
                              throws FactoryException

Returns an arbitrary object from a code.

Specified by:

createObject in interface AuthorityFactory

Overrides:

createObject in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The object for the given code.

Throws:

FactoryException - if the object creation failed.

See Also:

• AuthorityFactoryAdapter.createCoordinateReferenceSystem(java.lang.String)
• AuthorityFactoryAdapter.createDatum(java.lang.String)
• AuthorityFactoryAdapter.createEllipsoid(java.lang.String)
• AuthorityFactoryAdapter.createUnit(java.lang.String)

createDatum

public Datum createDatum(String code)
                  throws FactoryException

Returns an arbitrary datum from a code.

Overrides:

createDatum in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The datum for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createGeodeticDatum(java.lang.String)
• AuthorityFactoryAdapter.createVerticalDatum(java.lang.String)
• AuthorityFactoryAdapter.createTemporalDatum(java.lang.String)

createEngineeringDatum

public EngineeringDatum createEngineeringDatum(String code)
                                        throws FactoryException

Creates a engineering datum from a code.

Overrides:

createEngineeringDatum in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The datum for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createEngineeringCRS(java.lang.String)

createImageDatum

public ImageDatum createImageDatum(String code)
                            throws FactoryException

Creates a image datum from a code.

Overrides:

createImageDatum in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The datum for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createImageCRS(java.lang.String)

createVerticalDatum

public VerticalDatum createVerticalDatum(String code)
                                  throws FactoryException

Creates a vertical datum from a code.

Overrides:

createVerticalDatum in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The datum for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createVerticalCRS(java.lang.String)

createTemporalDatum

public TemporalDatum createTemporalDatum(String code)
                                  throws FactoryException

Creates a temporal datum from a code.

Overrides:

createTemporalDatum in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The datum for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createTemporalCRS(java.lang.String)

createGeodeticDatum

public GeodeticDatum createGeodeticDatum(String code)
                                  throws FactoryException

Returns a geodetic datum from a code.

Overrides:

createGeodeticDatum in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The datum for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createEllipsoid(java.lang.String)
• AuthorityFactoryAdapter.createPrimeMeridian(java.lang.String)
• AuthorityFactoryAdapter.createGeographicCRS(java.lang.String)
• AuthorityFactoryAdapter.createProjectedCRS(java.lang.String)

createEllipsoid

public Ellipsoid createEllipsoid(String code)
                          throws FactoryException

Returns an ellipsoid from a code.

Overrides:

createEllipsoid in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The ellipsoid for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createGeodeticDatum(java.lang.String)

createPrimeMeridian

public PrimeMeridian createPrimeMeridian(String code)
                                  throws FactoryException

Returns a prime meridian from a code.

Overrides:

createPrimeMeridian in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The prime meridian for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createGeodeticDatum(java.lang.String)

createExtent

public Extent createExtent(String code)
                    throws FactoryException

Returns a extent (usually an area of validity) from a code.

Overrides:

createExtent in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The extent for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createCoordinateSystem

public CoordinateSystem createCoordinateSystem(String code)
                                        throws FactoryException

Returns an arbitrary coordinate system from a code.

Overrides:

createCoordinateSystem in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createCartesianCS

public CartesianCS createCartesianCS(String code)
                              throws FactoryException

Creates a cartesian coordinate system from a code.

Overrides:

createCartesianCS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createPolarCS

public PolarCS createPolarCS(String code)
                      throws FactoryException

Creates a polar coordinate system from a code.

Overrides:

createPolarCS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createCylindricalCS

public CylindricalCS createCylindricalCS(String code)
                                  throws FactoryException

Creates a cylindrical coordinate system from a code.

Overrides:

createCylindricalCS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createSphericalCS

public SphericalCS createSphericalCS(String code)
                              throws FactoryException

Creates a spherical coordinate system from a code.

Overrides:

createSphericalCS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createEllipsoidalCS

public EllipsoidalCS createEllipsoidalCS(String code)
                                  throws FactoryException

Creates an ellipsoidal coordinate system from a code.

Overrides:

createEllipsoidalCS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createVerticalCS

public VerticalCS createVerticalCS(String code)
                            throws FactoryException

Creates a vertical coordinate system from a code.

Overrides:

createVerticalCS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createTimeCS

public TimeCS createTimeCS(String code)
                    throws FactoryException

Creates a temporal coordinate system from a code.

Overrides:

createTimeCS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createCoordinateSystemAxis

public CoordinateSystemAxis createCoordinateSystemAxis(String code)
                                                throws FactoryException

Returns a coordinate system axis from a code.

Overrides:

createCoordinateSystemAxis in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The axis for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createUnit

public Unit<?> createUnit(String code)
                   throws FactoryException

Returns an unit from a code.

Overrides:

createUnit in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The unit for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createCoordinateReferenceSystem

public CoordinateReferenceSystem createCoordinateReferenceSystem(String code)
                                                          throws FactoryException

Returns an arbitrary coordinate reference system from a code.

Overrides:

createCoordinateReferenceSystem in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AuthorityFactoryAdapter.createGeographicCRS(java.lang.String)
• AuthorityFactoryAdapter.createProjectedCRS(java.lang.String)
• AuthorityFactoryAdapter.createVerticalCRS(java.lang.String)
• AuthorityFactoryAdapter.createTemporalCRS(java.lang.String)
• AuthorityFactoryAdapter.createCompoundCRS(java.lang.String)

createCompoundCRS

public CompoundCRS createCompoundCRS(String code)
                              throws FactoryException

Creates a 3D coordinate reference system from a code.

Overrides:

createCompoundCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createDerivedCRS

public DerivedCRS createDerivedCRS(String code)
                            throws FactoryException

Creates a derived coordinate reference system from a code.

Overrides:

createDerivedCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createEngineeringCRS

public EngineeringCRS createEngineeringCRS(String code)
                                    throws FactoryException

Creates a engineering coordinate reference system from a code.

Overrides:

createEngineeringCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createGeographicCRS

public GeographicCRS createGeographicCRS(String code)
                                  throws FactoryException

Returns a geographic coordinate reference system from a code.

Overrides:

createGeographicCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AbstractAuthorityFactory.createGeodeticDatum(java.lang.String)

createGeocentricCRS

public GeocentricCRS createGeocentricCRS(String code)
                                  throws FactoryException

Returns a geocentric coordinate reference system from a code.

Overrides:

createGeocentricCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AbstractAuthorityFactory.createGeodeticDatum(java.lang.String)

createImageCRS

public ImageCRS createImageCRS(String code)
                        throws FactoryException

Creates a image coordinate reference system from a code.

Overrides:

createImageCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createProjectedCRS

public ProjectedCRS createProjectedCRS(String code)
                                throws FactoryException

Returns a projected coordinate reference system from a code.

Overrides:

createProjectedCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AbstractAuthorityFactory.createGeodeticDatum(java.lang.String)

createTemporalCRS

public TemporalCRS createTemporalCRS(String code)
                              throws FactoryException

Creates a temporal coordinate reference system from a code.

Overrides:

createTemporalCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AbstractAuthorityFactory.createTemporalDatum(java.lang.String)

createVerticalCRS

public VerticalCRS createVerticalCRS(String code)
                              throws FactoryException

Creates a vertical coordinate reference system from a code.

Overrides:

createVerticalCRS in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

See Also:

• AbstractAuthorityFactory.createVerticalDatum(java.lang.String)

createParameterDescriptor

public ParameterDescriptor createParameterDescriptor(String code)
                                              throws FactoryException

Creates a parameter descriptor from a code.

Overrides:

createParameterDescriptor in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The coordinate reference system for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createOperationMethod

public OperationMethod createOperationMethod(String code)
                                      throws FactoryException

Creates an operation method from a code.

Overrides:

createOperationMethod in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The operation method for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createCoordinateOperation

public CoordinateOperation createCoordinateOperation(String code)
                                              throws FactoryException

Creates an operation from a single operation code.

Overrides:

createCoordinateOperation in class AuthorityFactoryAdapter

Parameters:

code - Value allocated by authority.

Returns:

The operation for the given code.

Throws:

FactoryException - if the object creation failed for all factories.

createFromCoordinateReferenceSystemCodes

public Set<CoordinateOperation> createFromCoordinateReferenceSystemCodes(String sourceCRS,
 String targetCRS)
                                                                  throws FactoryException

Creates an operation from coordinate reference system codes.

Overrides:

createFromCoordinateReferenceSystemCodes in class AuthorityFactoryAdapter

Parameters:

sourceCRS - Coded value of source coordinate reference system.

targetCRS - Coded value of target coordinate reference system.

Returns:

The operations from sourceCRS to targetCRS.

Throws:

FactoryException - if the object creation failed for all factories.

getIdentifiedObjectFinder

public IdentifiedObjectFinder getIdentifiedObjectFinder(Class<? extends IdentifiedObject> type)
                                                 throws FactoryException

Returns a finder which can be used for looking up unidentified objects. The default implementation delegates the lookups to the primary factory, and fallback on the second one if the primary factory can't find a match.

Overrides:

getIdentifiedObjectFinder in class AuthorityFactoryAdapter

Parameters:

type - The type of objects to look for. Should be a GeoAPI interface like GeographicCRS.class, but this method accepts also implementation class. If the type is unknown, use IdentifiedObject.class. A more accurate type may help to speed up the search, since it reduces the amount of tables to scan in some implementations like the factories backed by EPSG database.

Returns:

A finder to use for looking up unidentified objects.

Throws:

FactoryException - if the object creation failed.

Since:

2.4

notifySuccess

protected void notifySuccess(String method,
 String code,
 CRSAuthorityFactory factory,
 CoordinateReferenceSystem crs)

Description copied from class: AuthorityFactoryAdapter

Log a message when a CRS is found. Child objects that doesn't create their own CRS-objects should not report.

Overrides:

notifySuccess in class AuthorityFactoryAdapter