Source code for vineyard.io.recordbatch

#! /usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2020-2022 Alibaba Group Holding Limited.
#
# 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.
#

''' This module exposes support for RecordBatchStream.
'''

import json
from typing import Dict

from .._C import ObjectMeta
from .stream import BaseStream


[docs]class RecordBatchStream(BaseStream): def __init__(self, meta: ObjectMeta, params: Dict = None): super().__init__(meta) self._params = params @property def params(self): return self._params @staticmethod def new( client, params: Dict = None, meta: ObjectMeta = None ) -> "RecordBatchStream": if meta is None: meta = ObjectMeta() meta['typename'] = 'vineyard::RecordBatchStream' if params is None: params = dict() meta['params_'] = params meta = client.create_metadata(meta) client.create_stream(meta.id) return RecordBatchStream(meta, params)
def recordbatch_stream_resolver(obj, resolver): # pylint: disable=unused-argument meta = obj.meta if 'params_' in meta: params = json.loads(meta['params_']) else: params = dict return RecordBatchStream(meta, params) def register_recordbatch_stream_types(_builder_ctx, resolver_ctx): if resolver_ctx is not None: resolver_ctx.register( 'vineyard::RecordBatchStream', recordbatch_stream_resolver )