uk.ac.starlink.ttools.taplint

Class IvoaSchemaResolver

java.lang.Object

uk.ac.starlink.ttools.taplint.IvoaSchemaResolver

All Implemented Interfaces:

org.w3c.dom.ls.LSResourceResolver

public class IvoaSchemaResolver
extends Object
implements org.w3c.dom.ls.LSResourceResolver

ResourceResolver implementation used for validating documents against XSD schemas relating to known IVOA standards. Schemas for a number of IVOA-related namespaces are kept locally. This means both that validation can be performed without having to retrieve documents from the remote IVOA web site, and also that documents are not able to subsitute their own hacked versions of the schema for a given namespace, they have to use the official one.

Since:

28 Apr 2014

Author:

Mark Taylor

Field Summary

Fields

Modifier and Type	Field and Description
static String	AVAILABILITY_URI Namespace URI for VOSI availability schema.
static String	CAPABILITIES_URI Namespace URI for VOSI capabilities schema.
static Map<String,URL>	IVOA_SCHEMA_MAP Unmodifiable map of namespace URIs to local schema URLs for a selection of schemas from http://www.ivoa.net.
static String	UWS_URI Namespace URI for UWS schema.
static String	VODATASERVICE_URI Namespace URI for VODataService schema.
static Map<String,URL>	W3C_SCHEMA_MAP Unmodifiable map of namespace URIs to local schema URLs for a selection of schemas from http://www.w3.org.

Constructor Summary

Constructors

Constructor and Description
IvoaSchemaResolver() Constructs a resolver with a default schema map.
IvoaSchemaResolver(Map<String,URL> schemaMap) Constructs a resolver with a supplied schema map.

Method Summary

Modifier and Type	Method and Description
Set<String>	getResolvedNamespaces() Returns the the schema namespaces which this resolver has so far been asked to resolve, and has successfully resolved to known URLs.
Map<String,URL>	getSchemaMap() Returns the namespace->URL map of schemas known by this resolver.
Set<String>	getUnresolvedNamespaces() Returns the schema namespaces which this resolver has so far been asked to resolve, and has failed because they are unknown.
org.w3c.dom.ls.LSInput	resolveResource(String type, String namespaceURI, String publicId, String systemId, String baseURI)

Methods inherited from class java.lang.Object

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

Field Detail

VODATASERVICE_URI

public static final String VODATASERVICE_URI

Namespace URI for VODataService schema.

See Also:

Constant Field Values

CAPABILITIES_URI

public static final String CAPABILITIES_URI

Namespace URI for VOSI capabilities schema.

See Also:

Constant Field Values

AVAILABILITY_URI

public static final String AVAILABILITY_URI

Namespace URI for VOSI availability schema.

See Also:

Constant Field Values

UWS_URI

public static final String UWS_URI

Namespace URI for UWS schema.

See Also:

Constant Field Values

IVOA_SCHEMA_MAP

public static final Map<String,URL> IVOA_SCHEMA_MAP

Unmodifiable map of namespace URIs to local schema URLs for a selection of schemas from http://www.ivoa.net. Note that the namespace (map key) does not necessarily match the URL (map value) in point of minor version number; the minor version number in the URL may be later than the one in the namespace. This is deliberate, and is codified and explained in the XML Versioning document (at time of writing, PEN-XMLVers-1.0-20160906, sec 2.2.3).

W3C_SCHEMA_MAP

public static final Map<String,URL> W3C_SCHEMA_MAP

Unmodifiable map of namespace URIs to local schema URLs for a selection of schemas from http://www.w3.org.

Constructor Detail

IvoaSchemaResolver

public IvoaSchemaResolver(Map<String,URL> schemaMap)

Constructs a resolver with a supplied schema map.

Parameters:

schemaMap - of known namespace to schema URLs

IvoaSchemaResolver

public IvoaSchemaResolver()

Constructs a resolver with a default schema map.

Method Detail

getSchemaMap

public Map<String,URL> getSchemaMap()

Returns the namespace->URL map of schemas known by this resolver. This may be modified to change the resolution behaviour.

Returns:

modifiable namespace->URL map for known schemas

resolveResource

public org.w3c.dom.ls.LSInput resolveResource(String type,
                                              String namespaceURI,
                                              String publicId,
                                              String systemId,
                                              String baseURI)

Specified by:

resolveResource in interface org.w3c.dom.ls.LSResourceResolver

getResolvedNamespaces

public Set<String> getResolvedNamespaces()

Returns the the schema namespaces which this resolver has so far been asked to resolve, and has successfully resolved to known URLs.

Returns:

successful schema namespace resolutions to date

getUnresolvedNamespaces

public Set<String> getUnresolvedNamespaces()

Returns the schema namespaces which this resolver has so far been asked to resolve, and has failed because they are unknown.

Returns:

unsuccessful schema namespace resolutions to date