Returns a matrix of all entities showing which ones are connected together.

def connectiontable(self, state='prodaccepted'):
		"""
		Returns a matrix of all entities showing which ones are connected together.
		"""
		entities = self.list_full(state)

		# sort entities
		idps = OrderedDict()
		sps  = OrderedDict()
		for eid, entity in entities.items():
			if entity['isActive'] and entity['state']==state:
				if entity['type']=='saml20-idp':
					idps[eid] = entity
				elif entity['type']=='saml20-sp':
					sps[eid] = entity
				else:
					raise(ServiceRegistryError(0,"unknown type `%s' for eid=%s" % (entity['type'],entity['id'])))

		# use numpy here for the connection matrix to simplify extraction of rows and columns lateron
		max_eid = max(entities.keys())
		#print(max_eid)
		connections = dok_matrix((max_eid+1,max_eid+1), dtype=np.bool_)

		for idp_eid, idp_entity in idps.items():
			#pprint(idp_entity)
			sps_allowed = set([e['id'] for e in idp_entity['allowedConnections']])
			for sp_eid, sp_entity in sps.items():
				idps_allowed = set([ e['id'] for e in sp_entity['allowedConnections'] ])

				acl =     ( idp_entity['allowAllEntities'] or (sp_eid  in sps_allowed ) ) \
				      and ( sp_entity[ 'allowAllEntities'] or (idp_eid in idps_allowed) )
				connections[idp_eid,sp_eid] = acl

		self._connections[state] = dict()
		self._connections[state]['idp'] = idps
		self._connections[state]['sp' ] = sps
		self._connections[state]['acl'] = connections

		return connections