Package SPARQL :: Module Wrapper

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Module Wrapper

source code

See Also: SPARQL Specification

Author: Ivan Herman, Sergio Fernández, Carlos Tejo Alonso

Organization: World Wide Web Consortium and Foundation CTIC.

License: W3C® SOFTWARE NOTICE AND LICENSE

Requires:

simplejson package.
PyXML package.
RDFLib package.

Classes

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SPARQLWrapper
Wrapper around an online access to a SPARQL Web entry point.

QueryResult
Wrapper around an a query result.

Variables

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JSON = 'json'
to be used to set the return format to JSON

XML = 'xml'
to be used to set the return format to XML (SPARQL XML format or RDF/XML, depending on the query type).

TURTLE = 'n3'
to be used to set the return format to Turtle

N3 = 'n3'
to be used to set the return format to N3 (for most of the SPARQL services this is equivalent to Turtle)

_allowedFormats = ['json', 'xml', 'n3', 'n3']

POST = 'POST'
to be used to set HTTP POST

GET = 'GET'
to be used to set HTTP GET.

_allowedRequests = ['POST', 'GET']

SELECT = 'SELECT'
to be used to set the query type to SELECT.

CONSTRUCT = 'CONSTRUCT'
to be used to set the query type to CONSTRUCT.

ASK = 'ASK'
to be used to set the query type to ASK.

DESCRIBE = 'DESCRIBE'
to be used to set the query type to DESCRIBE.

_allowedQueryTypes = ['SELECT', 'CONSTRUCT', 'ASK', 'DESCRIBE']

_SPARQL_DEFAULT = ['application/sparql-results+xml', 'applicat...

_SPARQL_XML = ['application/sparql-results+xml']

_SPARQL_JSON = ['application/sparql-results+json', 'text/javas...

_RDF_XML = ['application/rdf+xml']

_RDF_N3 = ['text/rdf+n3', 'application/n-triples', 'applicatio...

_ALL = ['*/*']

_RDF_POSSIBLE = ['application/rdf+xml', 'text/rdf+n3', 'applic...

_SPARQL_POSSIBLE = ['application/sparql-results+xml', 'applica...

_returnFormatSetting = ['output', 'results']

Imports: urllib, urllib2, re

Variables Details

[hide private]

XML

to be used to set the return format to XML (SPARQL XML format or RDF/XML, depending on the query type). This is the default.

Value:

'xml'

GET

to be used to set HTTP GET. This is the default.

Value:

'GET'

SELECT

to be used to set the query type to SELECT. This is, usually, determined automatically.

Value:

'SELECT'

CONSTRUCT

to be used to set the query type to CONSTRUCT. This is, usually, determined automatically.

Value:

'CONSTRUCT'

ASK

to be used to set the query type to ASK. This is, usually, determined automatically.

Value:

'ASK'

DESCRIBE

to be used to set the query type to DESCRIBE. This is, usually, determined automatically.

Value:

'DESCRIBE'

_SPARQL_DEFAULT

Value:

['application/sparql-results+xml', 'application/rdf+xml', '*/*']

_SPARQL_JSON

Value:

['application/sparql-results+json', 'text/javascript']

_RDF_N3

Value:

['text/rdf+n3',
 'application/n-triples',
 'application/turtle',
 'application/n3',
 'text/n3',
 'text/turtle']

_RDF_POSSIBLE

Value:

['application/rdf+xml',
 'text/rdf+n3',
 'application/n-triples',
 'application/turtle',
 'application/n3',
 'text/n3',
 'text/turtle']

_SPARQL_POSSIBLE

Value:

['application/sparql-results+xml',
 'application/sparql-results+json',
 'text/javascript',
 'application/rdf+xml',
 'text/rdf+n3',
 'application/n-triples',
 'application/turtle',
 'application/n3',
...