| /* |
| * 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.reference; |
| |
| import java.util.concurrent.CompletableFuture; |
| import java.util.concurrent.ExecutionException; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.TimeoutException; |
| import javax.annotation.Nullable; |
| import org.apache.beam.model.jobmanagement.v1.JobApi; |
| import org.apache.beam.model.jobmanagement.v1.JobApi.CancelJobRequest; |
| import org.apache.beam.model.jobmanagement.v1.JobApi.CancelJobResponse; |
| import org.apache.beam.model.jobmanagement.v1.JobApi.GetJobStateRequest; |
| import org.apache.beam.model.jobmanagement.v1.JobApi.GetJobStateResponse; |
| import org.apache.beam.model.jobmanagement.v1.JobServiceGrpc.JobServiceBlockingStub; |
| import org.apache.beam.sdk.PipelineResult; |
| import org.apache.beam.sdk.metrics.MetricResults; |
| import org.apache.beam.vendor.grpc.v1p21p0.com.google.protobuf.ByteString; |
| import org.joda.time.Duration; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| class JobServicePipelineResult implements PipelineResult, AutoCloseable { |
| |
| private static final long POLL_INTERVAL_MS = 10 * 1000; |
| |
| private static final Logger LOG = LoggerFactory.getLogger(JobServicePipelineResult.class); |
| |
| private final ByteString jobId; |
| private final CloseableResource<JobServiceBlockingStub> jobService; |
| @Nullable private State terminationState; |
| @Nullable private final Runnable cleanup; |
| |
| JobServicePipelineResult( |
| ByteString jobId, CloseableResource<JobServiceBlockingStub> jobService, Runnable cleanup) { |
| this.jobId = jobId; |
| this.jobService = jobService; |
| this.terminationState = null; |
| this.cleanup = cleanup; |
| } |
| |
| @Override |
| public State getState() { |
| if (terminationState != null) { |
| return terminationState; |
| } |
| JobServiceBlockingStub stub = jobService.get(); |
| GetJobStateResponse response = |
| stub.getState(GetJobStateRequest.newBuilder().setJobIdBytes(jobId).build()); |
| return getJavaState(response.getState()); |
| } |
| |
| @Override |
| public State cancel() { |
| JobServiceBlockingStub stub = jobService.get(); |
| CancelJobResponse response = |
| stub.cancel(CancelJobRequest.newBuilder().setJobIdBytes(jobId).build()); |
| return getJavaState(response.getState()); |
| } |
| |
| @Nullable |
| @Override |
| public State waitUntilFinish(Duration duration) { |
| if (duration.compareTo(Duration.millis(1)) < 1) { |
| // Equivalent to infinite timeout. |
| return waitUntilFinish(); |
| } else { |
| CompletableFuture<State> result = CompletableFuture.supplyAsync(this::waitUntilFinish); |
| try { |
| return result.get(duration.getMillis(), TimeUnit.MILLISECONDS); |
| } catch (TimeoutException e) { |
| // Null result indicates a timeout. |
| return null; |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| throw new RuntimeException(e); |
| } catch (ExecutionException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |
| |
| @Override |
| public State waitUntilFinish() { |
| if (terminationState != null) { |
| return terminationState; |
| } |
| JobServiceBlockingStub stub = jobService.get(); |
| GetJobStateRequest request = GetJobStateRequest.newBuilder().setJobIdBytes(jobId).build(); |
| GetJobStateResponse response = stub.getState(request); |
| State lastState = getJavaState(response.getState()); |
| while (!lastState.isTerminal()) { |
| try { |
| Thread.sleep(POLL_INTERVAL_MS); |
| } catch (InterruptedException e) { |
| Thread.currentThread().interrupt(); |
| throw new RuntimeException(e); |
| } |
| response = stub.getState(request); |
| lastState = getJavaState(response.getState()); |
| } |
| close(); |
| terminationState = lastState; |
| return lastState; |
| } |
| |
| @Override |
| public MetricResults metrics() { |
| throw new UnsupportedOperationException("Not yet implemented."); |
| } |
| |
| @Override |
| public void close() { |
| try (CloseableResource<JobServiceBlockingStub> jobService = this.jobService) { |
| if (cleanup != null) { |
| cleanup.run(); |
| } |
| } catch (Exception e) { |
| LOG.warn("Error cleaning up job service", e); |
| } |
| } |
| |
| private static State getJavaState(JobApi.JobState.Enum protoState) { |
| switch (protoState) { |
| case UNSPECIFIED: |
| return State.UNKNOWN; |
| case STOPPED: |
| return State.STOPPED; |
| case RUNNING: |
| return State.RUNNING; |
| case DONE: |
| return State.DONE; |
| case FAILED: |
| return State.FAILED; |
| case CANCELLED: |
| return State.CANCELLED; |
| case UPDATED: |
| return State.UPDATED; |
| case DRAINING: |
| // TODO: Determine the correct mappings for the states below. |
| return State.UNKNOWN; |
| case DRAINED: |
| return State.UNKNOWN; |
| case STARTING: |
| return State.RUNNING; |
| case CANCELLING: |
| return State.CANCELLED; |
| default: |
| LOG.warn("Unrecognized state from server: {}", protoState); |
| return State.UNKNOWN; |
| } |
| } |
| } |