| /* |
| * 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.flink; |
| |
| import static org.apache.beam.runners.fnexecution.translation.PipelineTranslatorUtils.hasUnboundedPCollections; |
| |
| import java.util.List; |
| import javax.annotation.Nullable; |
| import org.apache.beam.model.pipeline.v1.RunnerApi; |
| import org.apache.beam.model.pipeline.v1.RunnerApi.Pipeline; |
| import org.apache.beam.runners.core.construction.graph.ExecutableStage; |
| import org.apache.beam.runners.core.construction.graph.GreedyPipelineFuser; |
| import org.apache.beam.runners.core.construction.graph.PipelineTrimmer; |
| import org.apache.beam.runners.fnexecution.jobsubmission.PortablePipelineRunner; |
| import org.apache.beam.runners.fnexecution.provisioning.JobInfo; |
| import org.apache.beam.sdk.PipelineResult; |
| import org.apache.beam.sdk.metrics.MetricsEnvironment; |
| import org.apache.flink.api.common.JobExecutionResult; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** Runs a Pipeline on Flink via {@link FlinkRunner}. */ |
| public class FlinkPipelineRunner implements PortablePipelineRunner { |
| private static final Logger LOG = LoggerFactory.getLogger(FlinkPipelineRunner.class); |
| |
| private final FlinkPipelineOptions pipelineOptions; |
| private final String confDir; |
| private final List<String> filesToStage; |
| |
| public FlinkPipelineRunner( |
| FlinkPipelineOptions pipelineOptions, @Nullable String confDir, List<String> filesToStage) { |
| this.pipelineOptions = pipelineOptions; |
| this.confDir = confDir; |
| this.filesToStage = filesToStage; |
| } |
| |
| @Override |
| public PipelineResult run(final Pipeline pipeline, JobInfo jobInfo) throws Exception { |
| MetricsEnvironment.setMetricsSupported(false); |
| |
| FlinkPortablePipelineTranslator<?> translator; |
| if (!pipelineOptions.isStreaming() && !hasUnboundedPCollections(pipeline)) { |
| // TODO: Do we need to inspect for unbounded sources before fusing? |
| translator = FlinkBatchPortablePipelineTranslator.createTranslator(); |
| } else { |
| translator = new FlinkStreamingPortablePipelineTranslator(); |
| } |
| return runPipelineWithTranslator(pipeline, jobInfo, translator); |
| } |
| |
| private <T extends FlinkPortablePipelineTranslator.TranslationContext> |
| PipelineResult runPipelineWithTranslator( |
| final Pipeline pipeline, JobInfo jobInfo, FlinkPortablePipelineTranslator<T> translator) |
| throws Exception { |
| LOG.info("Translating pipeline to Flink program."); |
| |
| // Don't let the fuser fuse any subcomponents of native transforms. |
| Pipeline trimmedPipeline = PipelineTrimmer.trim(pipeline, translator.knownUrns()); |
| |
| // Fused pipeline proto. |
| // TODO: Consider supporting partially-fused graphs. |
| RunnerApi.Pipeline fusedPipeline = |
| trimmedPipeline.getComponents().getTransformsMap().values().stream() |
| .anyMatch(proto -> ExecutableStage.URN.equals(proto.getSpec().getUrn())) |
| ? trimmedPipeline |
| : GreedyPipelineFuser.fuse(trimmedPipeline).toPipeline(); |
| |
| FlinkPortablePipelineTranslator.Executor executor = |
| translator.translate( |
| translator.createTranslationContext(jobInfo, pipelineOptions, confDir, filesToStage), |
| fusedPipeline); |
| final JobExecutionResult result = executor.execute(pipelineOptions.getJobName()); |
| |
| return FlinkRunner.createPipelineResult(result, pipelineOptions); |
| } |
| } |