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https://issues.apache.org/jira/browse/BEAM-3326?focusedWorklogId=105400&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-105400
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ASF GitHub Bot logged work on BEAM-3326:
----------------------------------------

                Author: ASF GitHub Bot
            Created on: 23/May/18 23:01
            Start Date: 23/May/18 23:01
    Worklog Time Spent: 10m 
      Work Description: lukecwik commented on a change in pull request #5349: 
[BEAM-3326] Remote stage evaluator
URL: https://github.com/apache/beam/pull/5349#discussion_r190424525
 
 

 ##########
 File path: 
runners/direct-java/src/main/java/org/apache/beam/runners/direct/portable/InProcessEnvironmentFactory.java
 ##########
 @@ -0,0 +1,97 @@
+/*
+ * 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.direct.portable;
+
+import static com.google.common.base.Preconditions.checkArgument;
+
+import java.time.Duration;
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+import java.util.concurrent.Future;
+import org.apache.beam.fn.harness.FnHarness;
+import org.apache.beam.model.pipeline.v1.Endpoints.ApiServiceDescriptor;
+import org.apache.beam.model.pipeline.v1.RunnerApi.Environment;
+import org.apache.beam.runners.fnexecution.GrpcFnServer;
+import org.apache.beam.runners.fnexecution.control.ControlClientPool;
+import 
org.apache.beam.runners.fnexecution.control.FnApiControlClientPoolService;
+import org.apache.beam.runners.fnexecution.control.InstructionRequestHandler;
+import org.apache.beam.runners.fnexecution.environment.EnvironmentFactory;
+import org.apache.beam.runners.fnexecution.environment.RemoteEnvironment;
+import org.apache.beam.runners.fnexecution.logging.GrpcLoggingService;
+import org.apache.beam.sdk.fn.stream.StreamObserverFactory;
+import org.apache.beam.sdk.fn.test.InProcessManagedChannelFactory;
+import org.apache.beam.sdk.options.PipelineOptionsFactory;
+
+/**
+ * An {@link EnvironmentFactory} that communicates to a {@link FnHarness} via 
the in-process gRPC
+ * channel.
+ *
+ * <p>TODO: Move this class to the runners/java-fn-execution module, with the 
Java SDK Harness as a
+ * provided dependency.
+ */
+class InProcessEnvironmentFactory implements EnvironmentFactory {
+
+  private final GrpcFnServer<GrpcLoggingService> loggingServer;
+  private final GrpcFnServer<FnApiControlClientPoolService> controlServer;
+
+  private final ControlClientPool.Source clientSource;
+
+  InProcessEnvironmentFactory(
+      GrpcFnServer<GrpcLoggingService> loggingServer,
+      GrpcFnServer<FnApiControlClientPoolService> controlServer,
+      ControlClientPool.Source clientSource) {
+    this.loggingServer = loggingServer;
+    this.controlServer = controlServer;
+    checkArgument(
+        loggingServer.getApiServiceDescriptor() != null,
+        "Logging Server cannot have a null %s",
+        ApiServiceDescriptor.class.getSimpleName());
+    checkArgument(
+        controlServer.getApiServiceDescriptor() != null,
+        "Control Server cannot have a null %s",
+        ApiServiceDescriptor.class.getSimpleName());
+    this.clientSource = clientSource;
+  }
+
+  @Override
+  public RemoteEnvironment createEnvironment(Environment container) throws 
Exception {
+    ExecutorService executor = Executors.newSingleThreadExecutor();
+    Future<?> fnHarness =
+        executor.submit(
+            () ->
+                FnHarness.main(
+                    PipelineOptionsFactory.create(),
+                    loggingServer.getApiServiceDescriptor(),
+                    controlServer.getApiServiceDescriptor(),
+                    InProcessManagedChannelFactory.create(),
+                    StreamObserverFactory.direct()));
+    executor.submit(
+        () -> {
+          try {
+            fnHarness.get();
+          } catch (Throwable t) {
+            executor.shutdownNow();
+          }
+        });
+
+    // TODO: find some way to populate the actual ID in FnHarness.main()
 
 Review comment:
   The point I'm trying to make is that the ApiServiceDescriptor is meant to 
describe who and how your connecting to an endpoint. I can foresee that in the 
future you would specify things like credentials inside this 
ApiServiceDescriptor. Since talking to the service requires a client id, I felt 
as though it would be useful to put the client id there.
   
   This client id may have value when doing job preparation/artifact 
uploading/... since it is a way to identify who you are talking to.

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Issue Time Tracking
-------------------

    Worklog Id:     (was: 105400)
    Time Spent: 14.5h  (was: 14h 20m)

> Execute a Stage via the portability framework in the ReferenceRunner
> --------------------------------------------------------------------
>
>                 Key: BEAM-3326
>                 URL: https://issues.apache.org/jira/browse/BEAM-3326
>             Project: Beam
>          Issue Type: New Feature
>          Components: runner-core
>            Reporter: Thomas Groh
>            Assignee: Thomas Groh
>            Priority: Major
>              Labels: portability
>          Time Spent: 14.5h
>  Remaining Estimate: 0h
>
> This is the supertask for remote execution in the Universal Local Runner 
> (BEAM-2899).
> This executes a stage remotely via portability framework APIs



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