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POtransfering rdf to 4store
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copied!<p>ok...actually i have a code named rdf.py that generates rdf code ..what i want to do is to directly move that file in 4store.. i have stored the entire code in a variable and want to directly pass that variable to 4store.. is it possible???? </p> <p>the code of rdf.py is below. rdf_code contains the entire rdf code that is generated</p> <p>`ok...actually i have a code named rdf.py that generates rdf code ..what i want to do is to directly move that file in 4store.. i have stored the entire code in a variable and want to directly pass that variable to 4store.. is it possible???? </p> <p>the code of rdf.py is below. rdf_code contains the entire rdf code that is generated</p> <pre><code>import rdflib from rdflib.events import Dispatcher, Event from rdflib.graph import ConjunctiveGraph as Graph from rdflib import plugin from rdflib.store import Store, NO_STORE, VALID_STORE from rdflib.namespace import Namespace from rdflib.term import Literal from rdflib.term import URIRef from tempfile import mkdtemp from gstudio.models import * from objectapp.models import * from reversion.models import Version from optparse import make_option def get_nodetype(name): """ returns the model the id belongs to. """ try: """ ALGO: get object id, go to version model, return for the given id. """ node = NID.objects.get(title=str(name)) # Retrieving only the relevant tupleset for the versioned objects vrs = Version.objects.filter(type=0 , object_id=node.id) # Returned value is a list, so splice it . vrs = vrs[0] except Error: return "The item was not found." return vrs.object._meta.module_name def rdf_description(name, notation='xml' ): """ Function takes title of node, and rdf notation. """ valid_formats = ["xml", "n3", "ntriples", "trix"] default_graph_uri = "http://gstudio.gnowledge.org/rdfstore" configString = "/var/tmp/rdfstore" # Get the Sleepycat plugin. store = plugin.get('IOMemory', Store)('rdfstore') # Open previously created store, or create it if it doesn't exist yet graph = Graph(store="IOMemory", identifier = URIRef(default_graph_uri)) path = mkdtemp() rt = graph.open(path, create=False) if rt == NO_STORE: #There is no underlying Sleepycat infrastructure, create it graph.open(path, create=True) else: assert rt == VALID_STORE, "The underlying store is corrupt" # Now we'll add some triples to the graph & commit the changes # rdflib = Namespace('http://sbox.gnowledge.org/gstudio/') graph.bind("gstudio", "http://gnowledge.org/") exclusion_fields = ["id", "rght", "node_ptr_id", "image", "lft", "_state", "_altnames_cache", "_tags_cache", "nid_ptr_id", "_mptt_cached_fields"] node_type=get_nodetype(name) if (node_type=='gbobject'): node=Gbobject.objects.get(title=name) elif (node_type=='objecttype'): node=Objecttype.objects.get(title=name) elif (node_type=='metatype'): node=Metatype.objects.get(title=name) elif (node_type=='attributetype'): node=Attributetype.objects.get(title=name) elif (node_type=='relationtype'): node=Relationtype.objects.get(title=name) elif (node_type=='attribute'): node=Attribute.objects.get(title=name) elif (node_type=='complement'): node=Complement.objects.get(title=name) elif (node_type=='union'): node=Union.objects.get(title=name) elif (node_type=='intersection'): node=Intersection.objects.get(title=name) elif (node_type=='expression'): node=Expression.objects.get(title=name) elif (node_type=='processtype'): node=Processtype.objects.get(title=name) elif (node_type=='systemtype'): node=Systemtype.objects.get(title=name) node_url=node.get_absolute_url() site_add= node.sites.all() a = site_add[0] host_name =a.name #host_name=name link='http://' #Concatenating the above variables will give the url address. url_add=link+host_name+node_url rdflib = Namespace(url_add) # node=Objecttype.objects.get(title=name) node_dict=node.__dict__ subject=str(node_dict['id']) for key in node_dict: if key not in exclusion_fields: predicate=str(key) pobject=str(node_dict[predicate]) graph.add((rdflib[subject], rdflib[predicate], Literal(pobject))) rdf_code= graph.serialize(format=notation) # print out all the triples in the graph for subject, predicate, object in graph: print subject, predicate, object graph.commit() print rdf_code graph.close() </code></pre> <p>can i directly pass the rdf_code to 4store...if yes then how??</p>

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