def __init__(self, source='dummy', defaultStatements=(), **kw): # Create a new hash memory store storage = RDF.HashStorage( source, options="new='yes',hash-type='memory',contexts='yes'") model = RDF.Model(storage) super(RedlandHashMemModel, self).__init__(model) for stmt in defaultStatements: self.addStatement(stmt) model.sync()
def __init__(self, source='', defaultStatements=(), **kw): if os.path.exists(source + '-sp2o.db'): storage = RDF.HashStorage( source, options="hash-type='bdb',contexts='yes'") model = RDF.Model(storage) else: # Create a new BDB store storage = RDF.HashStorage( source, options="new='yes',hash-type='bdb',contexts='yes'") model = RDF.Model(storage) for stmt in defaultStatements: if stmt.scope: context = URI2node(stmt.scope) else: context = None model.add_statement(statement2Redland(stmt), context=context) model.sync() super(RedlandHashBdbModel, self).__init__(model)
def __init__(self, ns_tbl, large=False): if large: self._storage = RDF.HashStorage( 'db4', options="new='yes',hash-type='bdb'") else: self._storage = RDF.MemoryStorage() self._model = RDF.Model(self._storage) self._g_pred_map = {} self._pred_tbl = {} self.l_true = Literal('true') self.l_false = Literal('false') self.namespace_tbl = ns_tbl
def createModel(self): """Creates a Redland RDF Model. Returns: RDF.Model """ storage = RDF.HashStorage("temp", options="new='yes',hash-type='memory'") if storage is None: raise Exception("new RDF.Storage failed") model = RDF.Model(storage) if model is None: raise Exception("new RDF.model failed") self.model = model
from pymongo import MongoClient # Fix up handling of utf8 reload(sys) sys.setdefaultencoding('utf8') # Warm up the parser. if len(sys.argv) < 2: raise RuntimeError('Missing file argument') file = sys.argv[1] parser = RDF.Parser(name="ntriples") store = RDF.HashStorage("db4", options="new='yes', hash-type='bdb'") model = RDF.Model() stream = parser.parse_into_model(model, 'file:' + file) # Connect to our database. db = MongoClient('mongodb://{}:{}@{}:{}'.format('mhucka', 'casics4me', 'hyponym.caltech.edu', 9988), tz_aware=True, connect=True, socketKeepAlive=True) lcsh_db = db['lcsh'] lcsh = lcsh_db.terms # Helper functions
import RDF storage = RDF.HashStorage('music', options="hash-type='bdb',bulk='no'") model = RDF.Model(storage) def state(s, p, o): model.append(RDF.Statement(s, p, o)) def forget(s, p, o): '''delete all statements matching the given s, p, o (None matches anything)''' for st in model.find_statements(RDF.Statement(s, p, o)): del model[st]