github-actions[bot] opened a new issue, #678: URL: https://github.com/apache/wayang/issues/678
this.size is currently always 0 https://github.com/apache/wayang/blob/745fc5cb9a765796533ca673c8d331fef15b2e63/wayang-platforms/wayang-flink/src/main/java/org/apache/wayang/flink/channels/DataStreamChannel.java#L42 ```java /* * 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. */ package org.apache.wayang.flink.channels; import org.apache.flink.streaming.api.datastream.DataStream; import org.apache.wayang.core.optimizer.OptimizationContext; import org.apache.wayang.core.plan.executionplan.Channel; import org.apache.wayang.core.plan.wayangplan.OutputSlot; import org.apache.wayang.core.platform.AbstractChannelInstance; import org.apache.wayang.core.platform.ChannelDescriptor; import org.apache.wayang.core.platform.ChannelInstance; import org.apache.wayang.core.platform.Executor; import org.apache.wayang.flink.execution.FlinkExecutor; import java.util.OptionalLong; public class DataStreamChannel extends Channel { /** * {@link ChannelInstance} implementation for {@link DataStream}s. */ public class Instance extends AbstractChannelInstance { private DataStream<?> dataStream; // TODO: this.size is currently always 0 private long size; public Instance(final FlinkExecutor executor, final OptimizationContext.OperatorContext producerOperatorContext, final int producerOutputIndex) { super(executor, producerOperatorContext, producerOutputIndex); } public void accept(final DataStream<?> dataStream) { this.dataStream = dataStream; } @SuppressWarnings("unchecked") public <T> DataStream<T> provideDataStream() { return (DataStream<T>) this.dataStream; } @Override public OptionalLong getMeasuredCardinality() { return this.size == 0 ? super.getMeasuredCardinality() : OptionalLong.of(this.size); } @Override public DataStreamChannel getChannel() { return DataStreamChannel.this; } @Override protected void doDispose() { this.dataStream = null; } } public static final ChannelDescriptor DESCRIPTOR = new ChannelDescriptor( DataStreamChannel.class, true, false); public static final ChannelDescriptor DESCRIPTOR_MANY = new ChannelDescriptor( DataStreamChannel.class, true, false); public DataStreamChannel(final ChannelDescriptor descriptor, final OutputSlot<?> outputSlot) { super(descriptor, outputSlot); assert descriptor == DESCRIPTOR || descriptor == DESCRIPTOR_MANY; this.markForInstrumentation(); } private DataStreamChannel(final DataStreamChannel parent) { super(parent); } @Override public Channel copy() { return new DataStreamChannel(this); } @Override public Instance createInstance(final Executor executor, final OptimizationContext.OperatorContext producerOperatorContext, final int producerOutputIndex) { return new Instance((FlinkExecutor) executor, producerOperatorContext, producerOutputIndex); } } ``` af1d17f15876d937e6bb0fdc1597d80f23536731 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
