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[FLINK-11877][runtime] Abstract AbstractTwoInputStreamTask from TwoIn…
…putStreamTask
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...va/src/main/java/org/apache/flink/streaming/runtime/tasks/AbstractTwoInputStreamTask.java
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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:https://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. | ||
| */ | ||
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| package org.apache.flink.streaming.runtime.tasks; | ||
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| import org.apache.flink.annotation.Internal; | ||
| import org.apache.flink.api.common.typeutils.TypeSerializer; | ||
| import org.apache.flink.runtime.execution.Environment; | ||
| import org.apache.flink.runtime.io.network.partition.consumer.InputGate; | ||
| import org.apache.flink.runtime.metrics.MetricNames; | ||
| import org.apache.flink.streaming.api.graph.StreamConfig; | ||
| import org.apache.flink.streaming.api.graph.StreamEdge; | ||
| import org.apache.flink.streaming.api.operators.TwoInputStreamOperator; | ||
| import org.apache.flink.streaming.runtime.metrics.MinWatermarkGauge; | ||
| import org.apache.flink.streaming.runtime.metrics.WatermarkGauge; | ||
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| import java.util.ArrayList; | ||
| import java.util.Collection; | ||
| import java.util.List; | ||
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| /** | ||
| * Abstract class for executing a {@link TwoInputStreamOperator}. | ||
| */ | ||
| @Internal | ||
| public abstract class AbstractTwoInputStreamTask<IN1, IN2, OUT> extends StreamTask<OUT, TwoInputStreamOperator<IN1, IN2, OUT>> { | ||
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| protected final WatermarkGauge input1WatermarkGauge; | ||
| protected final WatermarkGauge input2WatermarkGauge; | ||
| protected final MinWatermarkGauge minInputWatermarkGauge; | ||
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| /** | ||
| * Constructor for initialization, possibly with initial state (recovery / savepoint / etc). | ||
| * | ||
| * @param env The task environment for this task. | ||
| */ | ||
| public AbstractTwoInputStreamTask(Environment env) { | ||
| super(env); | ||
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| input1WatermarkGauge = new WatermarkGauge(); | ||
| input2WatermarkGauge = new WatermarkGauge(); | ||
| minInputWatermarkGauge = new MinWatermarkGauge(input1WatermarkGauge, input2WatermarkGauge); | ||
| } | ||
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| @Override | ||
| public void init() throws Exception { | ||
| StreamConfig configuration = getConfiguration(); | ||
| ClassLoader userClassLoader = getUserCodeClassLoader(); | ||
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| TypeSerializer<IN1> inputDeserializer1 = configuration.getTypeSerializerIn1(userClassLoader); | ||
| TypeSerializer<IN2> inputDeserializer2 = configuration.getTypeSerializerIn2(userClassLoader); | ||
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| int numberOfInputs = configuration.getNumberOfInputs(); | ||
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| ArrayList<InputGate> inputList1 = new ArrayList<InputGate>(); | ||
| ArrayList<InputGate> inputList2 = new ArrayList<InputGate>(); | ||
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| List<StreamEdge> inEdges = configuration.getInPhysicalEdges(userClassLoader); | ||
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| for (int i = 0; i < numberOfInputs; i++) { | ||
| int inputType = inEdges.get(i).getTypeNumber(); | ||
| InputGate reader = getEnvironment().getInputGate(i); | ||
| switch (inputType) { | ||
| case 1: | ||
| inputList1.add(reader); | ||
| break; | ||
| case 2: | ||
| inputList2.add(reader); | ||
| break; | ||
| default: | ||
| throw new RuntimeException("Invalid input type number: " + inputType); | ||
| } | ||
| } | ||
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| createInputProcessor(inputList1, inputList2, inputDeserializer1, inputDeserializer2); | ||
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| headOperator.getMetricGroup().gauge(MetricNames.IO_CURRENT_INPUT_WATERMARK, minInputWatermarkGauge); | ||
| headOperator.getMetricGroup().gauge(MetricNames.IO_CURRENT_INPUT_1_WATERMARK, input1WatermarkGauge); | ||
| headOperator.getMetricGroup().gauge(MetricNames.IO_CURRENT_INPUT_2_WATERMARK, input2WatermarkGauge); | ||
| // wrap watermark gauge since registered metrics must be unique | ||
| getEnvironment().getMetricGroup().gauge(MetricNames.IO_CURRENT_INPUT_WATERMARK, minInputWatermarkGauge::getValue); | ||
| } | ||
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| protected abstract void createInputProcessor( | ||
| Collection<InputGate> inputGates1, | ||
| Collection<InputGate> inputGates2, | ||
| TypeSerializer<IN1> inputDeserializer1, | ||
| TypeSerializer<IN2> inputDeserializer2) throws Exception; | ||
| } |
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