# Copyright 2023 Iguazio
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# flake8: noqa - this is until we take care of the F401 violations with respect to __all__ & sphinx
__all__ = [
"DataItem",
"get_store_resource",
"ParquetTarget",
"CSVTarget",
"NoSqlTarget",
"StreamTarget",
"KafkaTarget",
"CSVSource",
"ParquetSource",
"BigQuerySource",
"HttpSource",
"StreamSource",
"KafkaSource",
"RedisStore",
"DatabricksFileSystemDisableCache",
"DatabricksFileBugFixed",
"get_stream_pusher",
]
import fsspec
import mlrun.datastore.wasbfs
from mlrun.platforms.iguazio import (
HTTPOutputStream,
KafkaOutputStream,
OutputStream,
parse_path,
)
from ..utils import logger
from .base import DataItem
from .datastore import StoreManager, in_memory_store, uri_to_ipython
from .dbfs_store import DatabricksFileBugFixed, DatabricksFileSystemDisableCache
from .s3 import parse_s3_bucket_and_key
from .sources import (
BigQuerySource,
CSVSource,
HttpSource,
KafkaSource,
ParquetSource,
StreamSource,
)
from .store_resources import (
get_store_resource,
get_store_uri,
is_store_uri,
parse_store_uri,
)
from .targets import CSVTarget, NoSqlTarget, ParquetTarget, StreamTarget
from .utils import get_kafka_brokers_from_dict, parse_kafka_url
store_manager = StoreManager()
if hasattr(fsspec, "register_implementation"):
fsspec.register_implementation(
"dbfs", DatabricksFileSystemDisableCache, clobber=True
)
else:
from fsspec.registry import known_implementations
known_implementations["dbfs"] = {
"class": "mlrun.datastore.dbfs_store.DatabricksFileSystemDisableCache",
"err": "Please make sure your fsspec version supports dbfs",
}
del known_implementations
del fsspec # clear the module namespace
def set_in_memory_item(key, value):
item = store_manager.object(f"memory://{key}")
item.put(value)
return item
def get_in_memory_items():
return in_memory_store._items
[docs]def get_stream_pusher(stream_path: str, **kwargs):
"""get a stream pusher object from URL.
common kwargs::
create: create a new stream if doesnt exist
shards: number of shards
retention_in_hours: stream retention in hours
:param stream_path: path/url of stream
"""
kafka_brokers = get_kafka_brokers_from_dict(kwargs)
if stream_path.startswith("kafka://") or kafka_brokers:
topic, brokers = parse_kafka_url(stream_path, kafka_brokers)
return KafkaOutputStream(topic, brokers, kwargs.get("kafka_producer_options"))
elif stream_path.startswith("http://") or stream_path.startswith("https://"):
return HTTPOutputStream(stream_path=stream_path)
elif "://" not in stream_path:
return OutputStream(stream_path, **kwargs)
elif stream_path.startswith("v3io"):
endpoint, stream_path = parse_path(stream_path)
return OutputStream(stream_path, endpoint=endpoint, **kwargs)
elif stream_path.startswith("dummy://"):
return _DummyStream(**kwargs)
else:
raise ValueError(f"unsupported stream path {stream_path}")
class _DummyStream:
"""stream emulator for tests and debug"""
def __init__(self, event_list=None, **kwargs):
self.event_list = event_list or []
def push(self, data):
if not isinstance(data, list):
data = [data]
for item in data:
logger.info(f"dummy stream got event: {item}")
self.event_list.append(item)
