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author | amita singh <amitacr@gmail.com> | 2012-05-25 14:53:37 +0530 |
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committer | amita singh <amitacr@gmail.com> | 2012-05-25 14:53:37 +0530 |
commit | a6e51038363f855d21bf3910fa8cc2c9bf9cb432 (patch) | |
tree | d3b795880271dc827637ffcfec1dc3bf9b92f218 /gstudio/management/commands/dump_all_rdf.py | |
parent | 0006595abadda23e160b17778eb20f4d4115f514 (diff) | |
download | gnowsys-a6e51038363f855d21bf3910fa8cc2c9bf9cb432.tar.gz |
dump_all_rdf.py creates all rdf for the objects created on the dashboard and dumps it in a folder.
Diffstat (limited to 'gstudio/management/commands/dump_all_rdf.py')
-rw-r--r-- | gstudio/management/commands/dump_all_rdf.py | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/gstudio/management/commands/dump_all_rdf.py b/gstudio/management/commands/dump_all_rdf.py new file mode 100644 index 0000000..505aa89 --- /dev/null +++ b/gstudio/management/commands/dump_all_rdf.py @@ -0,0 +1,211 @@ + +import rdflib +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 django.core.management.base import NoArgsCommand +from django.core.management.base import BaseCommand + + + + +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." + if (str(vrs.object)=='None'): + return str(vrs.object) + else: + return vrs.object._meta.module_name + + +def rdf_description(name,notation='xml' ): + """ + Funtion takes title of node, and rdf notation. + """ + valid_formats = ["xml", "n3", "ntriples", "trix"] + default_graph_uri = "http://gstudio.gnowledge.org/rdfstore" + # default_graph_uri = "http://example.com/" + configString = "/var/tmp/rdfstore" + + # Get the IOMemory 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: + + 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"] + + #verifies the type of node + + + #node=NID.objects.get(title=name) + node_type=get_nodetype(name) + + + + if (node_type=='gbobject'): + node=Gbobject.objects.get(title=name) + rdflib=link(node) + if (node_type=='None'): + node=Gbobject.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='processes'): + node=Gbobject.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='system'): + node=Gbobject.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='objecttype'): + node=Objecttype.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='attributetype'): + node=Attributetype.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='complement'): + node=Complement.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='union'): + node=Union.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='intersection'): + node=Intersection.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='expression'): + node=Expression.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='processtype'): + node=Processtype.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='systemtype'): + node=Systemtype.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='attributespecification'): + node=AttributeSpecification.objects.get(title=name) + rdflib=link(node) + + elif (node_type=='relationspecification'): + node=RelationSpecification.objects.get(title=name) + rdflib=link(node) + + elif(node_type=='attribute'): + node=Attribute.objects.get(title=name) + rdflib = Namespace('http://sbox.gnowledge.org/gstudio/') + + elif(node_type=='relationtype' ): + node=Relationtype.objects.get(title=name) + rdflib = Namespace('http://sbox.gnowledge.org/gstudio/') + + elif(node_type=='metatype'): + node=Metatype.objects.get(title=name) + rdflib = Namespace('http://sbox.gnowledge.org/gstudio/') + + + + 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) + + graph.commit() + print rdf_code + graph.close() + make_file(name,rdf_code) + + + + + +#provides the url address of particular node. +def link(node): + node_url=node.get_absolute_url() + site_addr= node.sites.all() + a=site_addr[0] + host_name=a.name + + link='http://' + #Concatenating the above variables will give the url address. + + url_addr=link+host_name+node_url + rdflib=Namespace(url_addr) + return rdflib + + +#makes individual rdf file for nodes. +def make_file(name,rdf_code): + x=str(name) + temp_path = '/home/labadmin/dev/gnowsys-studio/demo/rdffiles/' + x + '.rdf' + file = open(temp_path, 'w') + file.write(rdf_code) + file.close() + print "executed" + + + + +class Command(BaseCommand): + def handle(self,*args,**options): + + # verify the type of the node and pass the node to display the rdf accordingly. + + inr=0 + + object_list=NID.objects.all() + for each in object_list: + rdf_description(object_list[inr],*args) + inr=inr+1 + + + + + |