[GitHub] [incubator-wayang] github-actions[bot] opened a new issue, #222: check for the case where the index matter

[GitBox <gi...@apache.org>]

github-actions[bot] opened a new issue, #222:
URL: https://github.com/apache/incubator-wayang/issues/222

   check for the case where the index matter
   
   https://github.com/apache/incubator-wayang/blob/77a5d3b5854f59b9cad1f9e9921b849ccc5cca58/python/src/pywy/platforms/jvm/operator/jvm_unary_filter.py#L61
   
   ```python
   
   #
   #  Licensed to the Apache Software Foundation (ASF) under one or more
   #  contributor license agreements.  See the NOTICE file distributed with
   #  this work for additional information regarding copyright ownership.
   #  The ASF licenses this file to You 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.
   #
   
   from typing import Set, List, Type
   
   from pywy.core.channel import CH_T, ChannelDescriptor
   from pywy.operators.unary import FilterOperator
   from pywy.platforms.jvm.channels import DISPATCHABLE_CHANNEL_DESCRIPTOR, DispatchableChannel
   from pywy.platforms.jvm.operator.jvm_execution_operator import JVMExecutionOperator
   from pywy.platforms.commons.channels import (
       CommonsCallableChannel
   )
   from pywy.platforms.jvm.serializable.wayang_jvm_operator import WayangJVMMappartitionOperator, WayangJVMOperator
   
   
   class JVMFilterOperator(FilterOperator, JVMExecutionOperator):
   
       def __init__(self, origin: FilterOperator = None, **kwargs):
           predicate = None if origin is None else origin.predicate
           super().__init__(predicate)
           self.set_context(**kwargs)
   
       def execute(self, inputs: List[Type[CH_T]], outputs: List[Type[CH_T]]):
           self.validate_channels(inputs, outputs)
           udf = self.predicate
           if isinstance(inputs[0], DispatchableChannel):
               py_in_dispatch_channel: DispatchableChannel = inputs[0]
               py_out_dispatch_channel: DispatchableChannel = outputs[0]
   
               def func(iterator):
                   return filter(udf, iterator)
   
               py_out_dispatch_channel.accept_callable(
                   CommonsCallableChannel.concatenate(
                       func,
                       py_in_dispatch_channel.provide_callable()
                   )
               )
   
               op: WayangJVMOperator = py_in_dispatch_channel.provide_dispatchable()
   
               if isinstance(op, WayangJVMMappartitionOperator):
                   py_out_dispatch_channel.accept_dispatchable(op)
                   return
   
               current: WayangJVMMappartitionOperator = WayangJVMMappartitionOperator(self.name)
               # TODO check for the case where the index matter
               op.connect_to(0, current, 0)
               self.close_operator(op)
               py_out_dispatch_channel.accept_dispatchable(current)
   
           else:
               raise Exception("Channel Type does not supported")
   
       def get_input_channeldescriptors(self) -> Set[ChannelDescriptor]:
           return {DISPATCHABLE_CHANNEL_DESCRIPTOR}
   
       def get_output_channeldescriptors(self) -> Set[ChannelDescriptor]:
           return {DISPATCHABLE_CHANNEL_DESCRIPTOR}
   
   ```
   
   456c3f1256e226291d2b657267900dc092281993


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