org.geotools.referencing.crs
Class EPSGCRSAuthorityFactory

java.lang.Object
  org.geotools.referencing.crs.EPSGCRSAuthorityFactory

All Implemented Interfaces:

org.opengis.referencing.AuthorityFactory, org.opengis.referencing.crs.CRSAuthorityFactory, org.opengis.referencing.Factory

public class EPSGCRSAuthorityFactory

extends java.lang.Object

implements org.opengis.referencing.crs.CRSAuthorityFactory

Default implementation for a coordinate reference system authority factory backed by the EPSG property file. This gives most of the benifits of using the EPSG database backed authority factory, in a nice, portable property file.

Version:

$Id: EPSGCRSAuthorityFactory.java 17661 2006-01-18 07:55:11Z desruisseaux $

Author:

Jody Garnett, Rueben Schulz

Field Summary

static java.lang.String	AUTHORITY
static java.lang.String	AUTHORITY_PREFIX
protected org.opengis.referencing.crs.CRSFactory	crsFactory
protected static EPSGCRSAuthorityFactory	DEFAULT The default coordinate system authority factory.
protected java.util.Properties	epsg The properties object for our properties file.

Constructor Summary

	EPSGCRSAuthorityFactory() Loads from epsg.properties if the file exists, defaults to internal defintions exported from postgis and cubeworks.
protected	EPSGCRSAuthorityFactory(org.opengis.referencing.crs.CRSFactory factory) Loads from epsg.properties if the file exists, defaults to internal defintions exported from postgis and cubeworks.
protected	EPSGCRSAuthorityFactory(org.opengis.referencing.crs.CRSFactory factory, java.net.URL definition)

Method Summary

org.opengis.referencing.crs.CompoundCRS	createCompoundCRS(java.lang.String str)
org.opengis.referencing.crs.CoordinateReferenceSystem	createCoordinateReferenceSystem(java.lang.String code)
org.opengis.referencing.crs.DerivedCRS	createDerivedCRS(java.lang.String str)
org.opengis.referencing.crs.EngineeringCRS	createEngineeringCRS(java.lang.String str)
org.opengis.referencing.crs.GeocentricCRS	createGeocentricCRS(java.lang.String str)
org.opengis.referencing.crs.GeographicCRS	createGeographicCRS(java.lang.String code)
org.opengis.referencing.crs.ImageCRS	createImageCRS(java.lang.String str)
org.opengis.referencing.IdentifiedObject	createObject(java.lang.String code)
org.opengis.referencing.crs.ProjectedCRS	createProjectedCRS(java.lang.String code)
org.opengis.referencing.crs.TemporalCRS	createTemporalCRS(java.lang.String str)
org.opengis.referencing.crs.VerticalCRS	createVerticalCRS(java.lang.String str)
org.opengis.metadata.citation.Citation	getAuthority()
java.util.Set	getAuthorityCodes(java.lang.Class clazz) Returns the set of authority codes of the given type.
static org.opengis.referencing.crs.CRSAuthorityFactory	getDefault() Returns a default coordinate system factory backed by the EPSG property file.
org.opengis.util.InternationalString	getDescriptionText(java.lang.String code)
org.opengis.referencing.ObjectFactory	getObjectFactory()
org.opengis.metadata.citation.Citation	getVendor()
protected void	loadDefault() Loads from epsg.properties if the file exists, defaults to internal defintions exported from postgis and cubeworks.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

AUTHORITY

public static final java.lang.String AUTHORITY

See Also:

Constant Field Values

AUTHORITY_PREFIX

public static final java.lang.String AUTHORITY_PREFIX

See Also:

Constant Field Values

DEFAULT

protected static EPSGCRSAuthorityFactory DEFAULT

The default coordinate system authority factory. Will be constructed only when first requested.

epsg

protected java.util.Properties epsg

The properties object for our properties file. Keys are the EPSG code for a coordinate reference system and the associated value is a WKT string for the CRS.

crsFactory

protected org.opengis.referencing.crs.CRSFactory crsFactory

Constructor Detail

EPSGCRSAuthorityFactory

public EPSGCRSAuthorityFactory()

Loads from epsg.properties if the file exists, defaults to internal defintions exported from postgis and cubeworks.

EPSGCRSAuthorityFactory

protected EPSGCRSAuthorityFactory(org.opengis.referencing.crs.CRSFactory factory)

Loads from epsg.properties if the file exists, defaults to internal defintions exported from postgis and cubeworks.

EPSGCRSAuthorityFactory

protected EPSGCRSAuthorityFactory(org.opengis.referencing.crs.CRSFactory factory,
                                  java.net.URL definition)
                           throws org.opengis.referencing.FactoryException

Method Detail

loadDefault

protected void loadDefault()
                    throws java.io.IOException

Loads from epsg.properties if the file exists, defaults to internal defintions exported from postgis and cubeworks.

Throws:

java.io.IOException

getDefault

public static org.opengis.referencing.crs.CRSAuthorityFactory getDefault()

Returns a default coordinate system factory backed by the EPSG property file.

Returns:

The default factory.

Throws:

SQLException - if the connection to the database can't be etablished.

createCoordinateReferenceSystem

public org.opengis.referencing.crs.CoordinateReferenceSystem createCoordinateReferenceSystem(java.lang.String code)
                                                                                      throws org.opengis.referencing.FactoryException

Specified by:

createCoordinateReferenceSystem in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createObject

public org.opengis.referencing.IdentifiedObject createObject(java.lang.String code)
                                                      throws org.opengis.referencing.FactoryException

Specified by:

createObject in interface org.opengis.referencing.AuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createProjectedCRS

public org.opengis.referencing.crs.ProjectedCRS createProjectedCRS(java.lang.String code)
                                                            throws org.opengis.referencing.FactoryException

Specified by:

createProjectedCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createGeographicCRS

public org.opengis.referencing.crs.GeographicCRS createGeographicCRS(java.lang.String code)
                                                              throws org.opengis.referencing.FactoryException

Specified by:

createGeographicCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

getAuthority

public org.opengis.metadata.citation.Citation getAuthority()

Specified by:

getAuthority in interface org.opengis.referencing.AuthorityFactory

getAuthorityCodes

public java.util.Set getAuthorityCodes(java.lang.Class clazz)
                                throws org.opengis.referencing.FactoryException

Returns the set of authority codes of the given type. The type argument specify the base class. For example if this factory is an instance of CRSAuthorityFactory, then:

• CoordinateReferenceSystem.class asks for all authority codes accepted by createGeographicCRS, createProjectedCRS, createVerticalCRS, createTemporalCRS and their friends.
• ProjectedCRS.class asks only for authority codes accepted by createProjectedCRS.

The following implementaiton filters the set of codes based on the "PROJCS" and "GEOGCS" at the start of the WKT strings. It is assumed that we only have GeographicCRS and ProjectedCRS's here.

Specified by:

getAuthorityCodes in interface org.opengis.referencing.AuthorityFactory

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:

org.opengis.referencing.FactoryException - if access to the underlying database failed.

getObjectFactory

public org.opengis.referencing.ObjectFactory getObjectFactory()

getVendor

public org.opengis.metadata.citation.Citation getVendor()

Specified by:

getVendor in interface org.opengis.referencing.Factory

getDescriptionText

public org.opengis.util.InternationalString getDescriptionText(java.lang.String code)
                                                        throws org.opengis.referencing.FactoryException

Specified by:

getDescriptionText in interface org.opengis.referencing.AuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createCompoundCRS

public org.opengis.referencing.crs.CompoundCRS createCompoundCRS(java.lang.String str)
                                                          throws org.opengis.referencing.FactoryException

Specified by:

createCompoundCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createDerivedCRS

public org.opengis.referencing.crs.DerivedCRS createDerivedCRS(java.lang.String str)
                                                        throws org.opengis.referencing.FactoryException

Specified by:

createDerivedCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createEngineeringCRS

public org.opengis.referencing.crs.EngineeringCRS createEngineeringCRS(java.lang.String str)
                                                                throws org.opengis.referencing.FactoryException

Specified by:

createEngineeringCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createGeocentricCRS

public org.opengis.referencing.crs.GeocentricCRS createGeocentricCRS(java.lang.String str)
                                                              throws org.opengis.referencing.FactoryException

Specified by:

createGeocentricCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createImageCRS

public org.opengis.referencing.crs.ImageCRS createImageCRS(java.lang.String str)
                                                    throws org.opengis.referencing.FactoryException

Specified by:

createImageCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createTemporalCRS

public org.opengis.referencing.crs.TemporalCRS createTemporalCRS(java.lang.String str)
                                                          throws org.opengis.referencing.FactoryException

Specified by:

createTemporalCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException

createVerticalCRS

public org.opengis.referencing.crs.VerticalCRS createVerticalCRS(java.lang.String str)
                                                          throws org.opengis.referencing.FactoryException

Specified by:

createVerticalCRS in interface org.opengis.referencing.crs.CRSAuthorityFactory

Throws:

org.opengis.referencing.FactoryException