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from .database import Database
from .store import ServerStore
import itertools
import mongomock
from mongomock import codec_options as mongomock_codec_options
from mongomock import ConfigurationError
from mongomock import helpers
from mongomock import read_preferences
from packaging import version
import warnings
try:
from pymongo.uri_parser import parse_uri, split_hosts
from pymongo import ReadPreference
_READ_PREFERENCE_PRIMARY = ReadPreference.PRIMARY
except ImportError:
from .helpers import parse_uri, split_hosts
_READ_PREFERENCE_PRIMARY = read_preferences.PRIMARY
def _convert_version_to_list(version_str):
pieces = [int(part) for part in version_str.split('.')]
return pieces + [0] * (4 - len(pieces))
class MongoClient:
HOST = 'localhost'
PORT = 27017
_CONNECTION_ID = itertools.count()
def __init__(self, host=None, port=None, document_class=dict,
tz_aware=False, connect=True, _store=None, read_preference=None,
**kwargs):
if host:
self.host = host[0] if isinstance(host, (list, tuple)) else host
else:
self.host = self.HOST
self.port = port or self.PORT
self._tz_aware = tz_aware
self._codec_options = mongomock_codec_options.CodecOptions(tz_aware=tz_aware)
self._database_accesses = {}
self._store = _store or ServerStore()
self._id = next(self._CONNECTION_ID)
self._document_class = document_class
if read_preference is not None:
read_preferences.ensure_read_preference_type('read_preference', read_preference)
self._read_preference = read_preference or _READ_PREFERENCE_PRIMARY
dbase = None
if '://' in self.host:
res = parse_uri(self.host, default_port=self.port, warn=True)
self.host, self.port = res['nodelist'][0]
dbase = res['database']
else:
self.host, self.port = split_hosts(self.host, default_port=self.port)[0]
self.__default_database_name = dbase
self._server_version = mongomock.SERVER_VERSION
def __getitem__(self, db_name):
return self.get_database(db_name)
def __getattr__(self, attr):
return self[attr]
def __enter__(self):
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self.close()
def __repr__(self):
return f"mongomock.MongoClient('{self.host}', {self.port})"
def __eq__(self, other):
if isinstance(other, self.__class__):
return self.address == other.address
return NotImplemented
if helpers.PYMONGO_VERSION >= version.parse('3.12'):
def __hash__(self):
return hash(self.address)
def close(self):
pass
@property
def is_mongos(self):
return True
@property
def is_primary(self):
return True
@property
def address(self):
return self.host, self.port
@property
def read_preference(self):
return self._read_preference
@property
def codec_options(self):
return self._codec_options
def server_info(self):
return {
'version': self._server_version,
'sysInfo': 'Mock',
'versionArray': _convert_version_to_list(self._server_version),
'bits': 64,
'debug': False,
'maxBsonObjectSize': 16777216,
'ok': 1
}
if helpers.PYMONGO_VERSION < version.parse('4.0'):
def database_names(self):
warnings.warn('database_names is deprecated. Use list_database_names instead.')
return self.list_database_names()
def list_database_names(self):
return self._store.list_created_database_names()
def drop_database(self, name_or_db):
def drop_collections_for_db(_db):
db_store = self._store[_db.name]
for col_name in db_store.list_created_collection_names():
_db.drop_collection(col_name)
if isinstance(name_or_db, Database):
db = next(db for db in self._database_accesses.values() if db is name_or_db)
if db:
drop_collections_for_db(db)
elif name_or_db in self._store:
db = self.get_database(name_or_db)
drop_collections_for_db(db)
def get_database(self, name=None, codec_options=None, read_preference=None,
write_concern=None, read_concern=None):
if name is None:
db = self.get_default_database(
codec_options=codec_options,
read_preference=read_preference,
write_concern=write_concern,
read_concern=read_concern,
)
else:
db = self._database_accesses.get(name)
if db is None:
db_store = self._store[name]
db = self._database_accesses[name] = Database(
self, name, read_preference=read_preference or self.read_preference,
codec_options=codec_options or self._codec_options, _store=db_store,
read_concern=read_concern)
return db
def get_default_database(self, default=None, **kwargs):
name = self.__default_database_name
name = name if name is not None else default
if name is None:
raise ConfigurationError('No default database name defined or provided.')
return self.get_database(name=name, **kwargs)
def alive(self):
"""The original MongoConnection.alive method checks the status of the server.
In our case as we mock the actual server, we should always return True.
"""
return True
def start_session(self, causal_consistency=True, default_transaction_options=None):
"""Start a logical session."""
raise NotImplementedError('Mongomock does not support sessions yet')
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