org.apache.flink.streaming.runtime.io.StreamTaskNetworkInputFactory Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.streaming.runtime.io;
import org.apache.flink.api.common.TaskInfo;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import org.apache.flink.runtime.checkpoint.InflightDataRescalingDescriptor;
import org.apache.flink.runtime.io.disk.iomanager.IOManager;
import org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate;
import org.apache.flink.streaming.runtime.io.recovery.RescalingStreamTaskNetworkInput;
import org.apache.flink.streaming.runtime.partitioner.StreamPartitioner;
import org.apache.flink.streaming.runtime.watermarkstatus.StatusWatermarkValve;
import java.util.function.Function;
/** Factory for {@link StreamTaskNetworkInput} and {@link RescalingStreamTaskNetworkInput}. */
public class StreamTaskNetworkInputFactory {
/**
* Factory method for {@link StreamTaskNetworkInput} or {@link RescalingStreamTaskNetworkInput}
* depending on {@link InflightDataRescalingDescriptor}.
*/
public static StreamTaskInput create(
CheckpointedInputGate checkpointedInputGate,
TypeSerializer inputSerializer,
IOManager ioManager,
StatusWatermarkValve statusWatermarkValve,
int inputIndex,
InflightDataRescalingDescriptor rescalingDescriptorinflightDataRescalingDescriptor,
Function> gatePartitioners,
TaskInfo taskInfo) {
return rescalingDescriptorinflightDataRescalingDescriptor.equals(
InflightDataRescalingDescriptor.NO_RESCALE)
? new StreamTaskNetworkInput<>(
checkpointedInputGate,
inputSerializer,
ioManager,
statusWatermarkValve,
inputIndex)
: new RescalingStreamTaskNetworkInput<>(
checkpointedInputGate,
inputSerializer,
ioManager,
statusWatermarkValve,
inputIndex,
rescalingDescriptorinflightDataRescalingDescriptor,
gatePartitioners,
taskInfo);
}
}