runners/google-cloud-dataflow-java/worker/src/main/java/org/apache/beam/runners/dataflow/worker/DataflowMapTaskExecutorFactory.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
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 * Unless required by applicable law or agreed to in writing, software
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package org.apache.beam.runners.dataflow.worker;

import com.google.api.services.dataflow.model.MapTask;
import org.apache.beam.model.pipeline.v1.Endpoints;
import org.apache.beam.runners.dataflow.worker.counters.CounterSet;
import org.apache.beam.runners.dataflow.worker.graph.Edges.Edge;
import org.apache.beam.runners.dataflow.worker.graph.Nodes.Node;
import org.apache.beam.runners.fnexecution.GrpcFnServer;
import org.apache.beam.runners.fnexecution.control.InstructionRequestHandler;
import org.apache.beam.runners.fnexecution.data.GrpcDataService;
import org.apache.beam.runners.fnexecution.state.GrpcStateService;
import org.apache.beam.sdk.fn.IdGenerator;
import org.apache.beam.sdk.options.PipelineOptions;
import org.apache.beam.vendor.guava.v20_0.com.google.common.graph.MutableNetwork;

/** Creates a {@link DataflowMapTaskExecutor} from a {@link MapTask} definition. */
public interface DataflowMapTaskExecutorFactory {

  /**
   * Creates a new {@link DataflowMapTaskExecutor} from the given {@link MapTask} definition using
   * the provided {@link ReaderFactory} as well as a wide variety of other contextual information.
   */
  DataflowMapTaskExecutor create(
      InstructionRequestHandler instructionRequestHandler,
      GrpcFnServer<GrpcDataService> grpcDataFnServer,
      Endpoints.ApiServiceDescriptor dataApiServiceDescriptor,
      GrpcFnServer<GrpcStateService> grpcStateFnServer,
      MutableNetwork<Node, Edge> network,
      PipelineOptions options,
      String stageName,
      ReaderFactory readerFactory,
      SinkFactory sinkFactory,
      DataflowExecutionContext<?> executionContext,
      CounterSet counterSet,
      IdGenerator idGenerator);
}