Package se.liu.ida.hefquin.engine.wrappers.graphql.impl

Class DefaultGraphQL2RDFConfiguration

java.lang.Object

se.liu.ida.hefquin.engine.wrappers.graphql.impl.DefaultGraphQL2RDFConfiguration

All Implemented Interfaces:

GraphQL2RDFConfiguration

public class DefaultGraphQL2RDFConfiguration
extends Object
implements GraphQL2RDFConfiguration

Field Summary

Fields

Modifier and Type	Field	Description
protected final String	classPrefix
protected final String	connectingText
protected final String	jsonIDKeyPrefix
protected final String	jsonObjectKeyPrefix
protected final String	jsonScalarKeyPrefix
protected final String	membershipURI
protected final String	propertyPrefix

Constructor Summary

Constructors

Constructor	Description
DefaultGraphQL2RDFConfiguration()
DefaultGraphQL2RDFConfiguration(String classPrefix, String propertyPrefix)

Method Summary

Modifier and Type	Method	Description
String	getClassMembershipURI()
String	getClassPrefix()
String	getConnectingText()
String	getJsonIDKeyPrefix()
String	getJsonObjectKeyPrefix()
String	getJsonScalarKeyPrefix()
String	getPropertyPrefix()
boolean	isValidClassURI(String uri)	Verifies that @param uri is valid (Has correct class prefix)
boolean	isValidMembershipURI(String uri)	Verifies that @param uri is valid (Has correct membership uri)
boolean	isValidPropertyURI(String uri)	Verifies that @param uri is valid (Has correct property prefix, and connecting text)
String	mapClassToType(String uri)	Maps an rdfs class uri to a GraphQL type Return null if URI is invalid (not a class URI)
String	mapFieldToProperty(String type, String field)	Maps a GraphQL object type and field to an rdf property URI
String	mapPropertyToField(String uri)	Maps an rdf property URI to a GraphQL field Return null if URI is invalid (not a property URI)
String	mapPropertyToType(String uri)	Maps an rdf property URI to a GraphQL type Return null if URI is invalid (not a property URI)
String	mapTypeToClass(String type)	Maps a GraphQL type to an rdfs class uri
String	removeJsonKeyPrefix(String key)
String	removePropertyPrefix(String uri)	Function to remove the prefix from the property URI: @param uri Otherwise return null if unable (invalid property URI)
String	removePropertySuffix(String uri)	Function to remove the suffix (connecting text and class name) from the property URI: @param uri.

Methods inherited from class java.lang.Object

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

Field Details

classPrefix

protected final String classPrefix

propertyPrefix

protected final String propertyPrefix

connectingText

protected final String connectingText

See Also:

• Constant Field Values

membershipURI

protected final String membershipURI

jsonIDKeyPrefix

protected final String jsonIDKeyPrefix

See Also:

• Constant Field Values

jsonObjectKeyPrefix

protected final String jsonObjectKeyPrefix

See Also:

• Constant Field Values

jsonScalarKeyPrefix

protected final String jsonScalarKeyPrefix

See Also:

• Constant Field Values

Constructor Details

DefaultGraphQL2RDFConfiguration

public DefaultGraphQL2RDFConfiguration()

DefaultGraphQL2RDFConfiguration

public DefaultGraphQL2RDFConfiguration(String classPrefix,
 String propertyPrefix)

Method Details

getPropertyPrefix

public String getPropertyPrefix()

Specified by:

getPropertyPrefix in interface GraphQL2RDFConfiguration

Returns:

the prefix used for property URIs. A property URI is defined by its prefix followed by a property name, a connecting text and finally a class name of which that property belongs to. Example: "http://example.org/p/book_of_Author"

getClassPrefix

public String getClassPrefix()

Specified by:

getClassPrefix in interface GraphQL2RDFConfiguration

Returns:

the prefix used for class URIs. A class URI is defined by its prefix followed by a class name. Example: "http://example.org/c/Author"

getConnectingText

public String getConnectingText()

Specified by:

getConnectingText in interface GraphQL2RDFConfiguration

Returns:

the text that connects the property name and the class name in a property URI. Example: _of_

getClassMembershipURI

public String getClassMembershipURI()

Specified by:

getClassMembershipURI in interface GraphQL2RDFConfiguration

Returns:

a URI that signify a membership relation. Example: https://www.w3.org/1999/02/22-rdf-syntax-ns#type

removePropertyPrefix

public String removePropertyPrefix(String uri)

Description copied from interface: GraphQL2RDFConfiguration

Function to remove the prefix from the property URI: @param uri Otherwise return null if unable (invalid property URI)

Specified by:

removePropertyPrefix in interface GraphQL2RDFConfiguration

removePropertySuffix

public String removePropertySuffix(String uri)

Description copied from interface: GraphQL2RDFConfiguration

Function to remove the suffix (connecting text and class name) from the property URI: @param uri. Otherwise return null if unable (invalid property URI)

Specified by:

removePropertySuffix in interface GraphQL2RDFConfiguration

isValidClassURI

public boolean isValidClassURI(String uri)

Description copied from interface: GraphQL2RDFConfiguration

Verifies that @param uri is valid (Has correct class prefix)

Specified by:

isValidClassURI in interface GraphQL2RDFConfiguration

isValidPropertyURI

public boolean isValidPropertyURI(String uri)

Description copied from interface: GraphQL2RDFConfiguration

Verifies that @param uri is valid (Has correct property prefix, and connecting text)

Specified by:

isValidPropertyURI in interface GraphQL2RDFConfiguration

isValidMembershipURI

public boolean isValidMembershipURI(String uri)

Description copied from interface: GraphQL2RDFConfiguration

Verifies that @param uri is valid (Has correct membership uri)

Specified by:

isValidMembershipURI in interface GraphQL2RDFConfiguration

mapClassToType

public String mapClassToType(String uri)

Description copied from interface: GraphQL2RDFConfiguration

Maps an rdfs class uri to a GraphQL type Return null if URI is invalid (not a class URI)

Specified by:

mapClassToType in interface GraphQL2RDFConfiguration

mapTypeToClass

public String mapTypeToClass(String type)

Description copied from interface: GraphQL2RDFConfiguration

Maps a GraphQL type to an rdfs class uri

Specified by:

mapTypeToClass in interface GraphQL2RDFConfiguration

mapPropertyToField

public String mapPropertyToField(String uri)

Description copied from interface: GraphQL2RDFConfiguration

Maps an rdf property URI to a GraphQL field Return null if URI is invalid (not a property URI)

Specified by:

mapPropertyToField in interface GraphQL2RDFConfiguration

mapPropertyToType

public String mapPropertyToType(String uri)

Description copied from interface: GraphQL2RDFConfiguration

Maps an rdf property URI to a GraphQL type Return null if URI is invalid (not a property URI)

Specified by:

mapPropertyToType in interface GraphQL2RDFConfiguration

mapFieldToProperty

public String mapFieldToProperty(String type,
 String field)

Description copied from interface: GraphQL2RDFConfiguration

Maps a GraphQL object type and field to an rdf property URI

Specified by:

mapFieldToProperty in interface GraphQL2RDFConfiguration

getJsonIDKeyPrefix

public String getJsonIDKeyPrefix()

Specified by:

getJsonIDKeyPrefix in interface GraphQL2RDFConfiguration

Returns:

the prefix used by the id key in the expected json.

getJsonObjectKeyPrefix

public String getJsonObjectKeyPrefix()

Specified by:

getJsonObjectKeyPrefix in interface GraphQL2RDFConfiguration

Returns:

the prefix used by object keys in the expected json.

getJsonScalarKeyPrefix

public String getJsonScalarKeyPrefix()

Specified by:

getJsonScalarKeyPrefix in interface GraphQL2RDFConfiguration

Returns:

the prefix used by scalar keys in the expected json.

removeJsonKeyPrefix

public String removeJsonKeyPrefix(String key)

Specified by:

removeJsonKeyPrefix in interface GraphQL2RDFConfiguration

Returns:

the json key without its prefix. Works for keys with the defined prefixes from this current config (id,scalar,object)