Made SSSOM Schemaview object generation an method

[hrshdhgd]

In spite of PR #322 , #323 and #324 network calls were still being made. This PR should finally put an end to the problem.

Before fix:

>>> from oaklib.implementations import BioPortalImplementation
INFO:root:Loading schema https://w3id.org/linkml/types from /opt/anaconda3/envs/test/lib/python3.9/site-packages/sssom_schema/schema/sssom_schema.yaml
Traceback (most recent call last):
  File "/opt/anaconda3/envs/test/lib/python3.9/urllib/request.py", line 1346, in do_open
    h.request(req.get_method(), req.selector, req.data, headers,
  File "/opt/anaconda3/envs/test/lib/python3.9/http/client.py", line 1285, in request
    self._send_request(method, url, body, headers, encode_chunked)
  File "/opt/anaconda3/envs/test/lib/python3.9/http/client.py", line 1331, in _send_request
    self.endheaders(body, encode_chunked=encode_chunked)
  File "/opt/anaconda3/envs/test/lib/python3.9/http/client.py", line 1280, in endheaders
    self._send_output(message_body, encode_chunked=encode_chunked)
  File "/opt/anaconda3/envs/test/lib/python3.9/http/client.py", line 1040, in _send_output
    self.send(msg)
  File "/opt/anaconda3/envs/test/lib/python3.9/http/client.py", line 980, in send
    self.connect()
  File "/opt/anaconda3/envs/test/lib/python3.9/http/client.py", line 1447, in connect
    super().connect()
  File "/opt/anaconda3/envs/test/lib/python3.9/http/client.py", line 946, in connect
    self.sock = self._create_connection(
  File "/opt/anaconda3/envs/test/lib/python3.9/socket.py", line 823, in create_connection
    for res in getaddrinfo(host, port, 0, SOCK_STREAM):
  File "/opt/anaconda3/envs/test/lib/python3.9/socket.py", line 954, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 8] nodename nor servname provided, or not known

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/oaklib/__init__.py", line 7, in <module>
    from oaklib.interfaces import BasicOntologyInterface  # noqa:F401
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/oaklib/interfaces/__init__.py", line 1, in <module>
    from oaklib.interfaces.basic_ontology_interface import BasicOntologyInterface
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/oaklib/interfaces/basic_ontology_interface.py", line 26, in <module>
    from oaklib.mappers.ontology_metadata_mapper import OntologyMetadataMapper
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/oaklib/mappers/ontology_metadata_mapper.py", line 6, in <module>
    from sssom.parsers import parse_sssom_table, to_mapping_set_document
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/sssom/__init__.py", line 18, in <module>
    from .util import (  # noqa:401
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/sssom/util.py", line 40, in <module>
    from .constants import (
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/sssom/constants.py", line 48, in <module>
    c for c in SCHEMA_VIEW.all_slots() if SCHEMA_VIEW.get_slot(c).multivalued
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/utils/schemaview.py", line 278, in all_slots
    slots = copy(self._get_dict(SLOTS, imports))
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/utils/schemaview.py", line 375, in _get_dict
    schemas = self.all_schema(imports)
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/utils/schemaview.py", line 194, in all_schema
    return [m[sn] for sn in self.imports_closure(imports)]
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/utils/schemaview.py", line 169, in imports_closure
    imported_schema = self.load_import(sn)
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/utils/schemaview.py", line 146, in load_import
    schema = load_schema_wrap(sname + '.yaml',
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/utils/schemaview.py", line 68, in load_schema_wrap
    schema = yaml_loader.load(path, target_class=SchemaDefinition, **kwargs)
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/loaders/loader_root.py", line 85, in load
    results = self.load_any(*args, **kwargs)
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/loaders/yaml_loader.py", line 25, in load_any
    return self.load_source(source, loader, target_class, accept_header="text/yaml, application/yaml;q=0.9",
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/linkml_runtime/loaders/loader_root.py", line 58, in load_source
    data = hbread(source, metadata, metadata.base_path, accept_header)
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/hbreader/__init__.py", line 260, in hbread
    with hbopen(source, open_info, base_path, accept_header, is_actual_data, read_codec) as f:
  File "/opt/anaconda3/envs/test/lib/python3.9/site-packages/hbreader/__init__.py", line 184, in hbopen
    response = urlopen(req, context=ssl._create_unverified_context())
  File "/opt/anaconda3/envs/test/lib/python3.9/urllib/request.py", line 214, in urlopen
    return opener.open(url, data, timeout)
  File "/opt/anaconda3/envs/test/lib/python3.9/urllib/request.py", line 517, in open
    response = self._open(req, data)
  File "/opt/anaconda3/envs/test/lib/python3.9/urllib/request.py", line 534, in _open
    result = self._call_chain(self.handle_open, protocol, protocol +
  File "/opt/anaconda3/envs/test/lib/python3.9/urllib/request.py", line 494, in _call_chain
    result = func(*args)
  File "/opt/anaconda3/envs/test/lib/python3.9/urllib/request.py", line 1389, in https_open
    return self.do_open(http.client.HTTPSConnection, req,
  File "/opt/anaconda3/envs/test/lib/python3.9/urllib/request.py", line 1349, in do_open
    raise URLError(err)
urllib.error.URLError: <urlopen error [Errno 8] nodename nor servname provided, or not known>

After fix

>>> import logging
>>> logger = logging.getLogger()
>>> logger.setLevel(level=logging.DEBUG)
>>> logging.debug('x')
DEBUG:root:x
>>> from oaklib.implementations import BioPortalImplementation
DEBUG:bioregistry.resource_manager:[gramene.growthstage] missing potential synonym: gro
DEBUG:bioregistry.resource_manager:[merops.entry] missing potential synonym: MEROPS
DEBUG:bioregistry.resource_manager:[ncbi.assembly] missing potential synonym: assembly
DEBUG:bioregistry.resource_manager:[ncbiprotein] missing potential synonym: NCBI_NP
DEBUG:bioregistry.resource_manager:[panther.family] missing potential synonym: PANTHER
DEBUG:bioregistry.resource_manager:[pharmgkb.gene] missing potential synonym: PharmGKB
DEBUG:bioregistry.resource_manager:[rapdb.transcript] missing potential synonym: RAP-DB
DEBUG:bioregistry.resource_manager:[sabiork.kineticrecord] missing potential synonym: SABIO-RK
DEBUG:bioregistry.resource_manager:[tair.locus] missing potential synonym: TAIR
DEBUG:bioregistry.resource_manager:[uniprot.tissue] missing potential synonym: tissuelist
>>>