content: /*
   * 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.beam.runners.fnexecution.environment;
  
  import org.apache.beam.model.pipeline.v1.RunnerApi;
  import org.apache.beam.model.pipeline.v1.RunnerApi.Environment;
  import org.apache.beam.runners.fnexecution.artifact.ArtifactRetrievalService;
  import org.apache.beam.runners.fnexecution.control.ControlClientPool;
  import org.apache.beam.runners.fnexecution.control.FnApiControlClientPoolService;
  import org.apache.beam.runners.fnexecution.control.SdkHarnessClient;
  import org.apache.beam.runners.fnexecution.logging.GrpcLoggingService;
  import org.apache.beam.runners.fnexecution.provisioning.StaticGrpcProvisionService;
  import org.apache.beam.sdk.fn.IdGenerator;
  import org.apache.beam.sdk.fn.server.GrpcFnServer;
  import org.apache.beam.sdk.fn.server.ServerFactory;
  
  /** Creates {@link Environment environments} which communicate to an {@link SdkHarnessClient}. */
  public interface EnvironmentFactory {
    /** Creates an active {@link Environment} and returns a handle to it. */
    RemoteEnvironment createEnvironment(RunnerApi.Environment environment, String workerId)
        throws Exception;
  
    /** Provider for a {@link EnvironmentFactory} and {@link ServerFactory} for the environment. */
    interface Provider {
  
      /** Creates {@link EnvironmentFactory} for the provided GrpcServices. */
      EnvironmentFactory createEnvironmentFactory(
          GrpcFnServer<FnApiControlClientPoolService> controlServiceServer,
          GrpcFnServer<GrpcLoggingService> loggingServiceServer,
          GrpcFnServer<ArtifactRetrievalService> retrievalServiceServer,
          GrpcFnServer<StaticGrpcProvisionService> provisioningServiceServer,
          ControlClientPool clientPool,
          IdGenerator idGenerator);
  
      /** Create the {@link ServerFactory} applicable to this environment. */
      default ServerFactory getServerFactory() {
        return ServerFactory.createDefault();
      }
    }
  }
  