/* * 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.twister2; import java.util.Set; import org.apache.beam.model.pipeline.v1.RunnerApi; import org.apache.beam.runners.core.construction.graph.PipelineNode; import org.apache.beam.vendor.guava.v26_0_jre.com.google.common.collect.ImmutableMap; /** * Twister2BatchPortablePipelineTranslator. */ public class Twister2BatchPortablePipelineTranslator implements Twister2PortablePipelineTranslator { private final ImmutableMap<String, PTransformTranslator> urnToTransformTranslator; public Twister2BatchPortablePipelineTranslator() { this.urnToTransformTranslator = null; } interface PTransformTranslator { /** * Translates transformNode from Beam into the Spark context. */ void translate( PipelineNode.PTransformNode transformNode, RunnerApi.Pipeline pipeline, Twister2BatchTranslationContext context); } @Override public Set<String> knownUrns() { return null; } @Override public void translate(RunnerApi.Pipeline pipeline) { } }