runners/direct-java/src/test/java/org/apache/beam/runners/direct/DirectGraphs.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
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 * 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
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package org.apache.beam.runners.direct;

import org.apache.beam.sdk.Pipeline;
import org.apache.beam.sdk.options.PipelineOptionsFactory;
import org.apache.beam.sdk.runners.AppliedPTransform;
import org.apache.beam.sdk.values.PValue;

/** Test utilities for the {@link DirectRunner}. */
public final class DirectGraphs {
  public static void performDirectOverrides(Pipeline p) {
    p.replaceAll(
        DirectRunner.fromOptions(PipelineOptionsFactory.create().as(DirectOptions.class))
            .defaultTransformOverrides());
  }

  public static DirectGraph getGraph(Pipeline p) {
    DirectGraphVisitor visitor = new DirectGraphVisitor();
    p.traverseTopologically(visitor);
    return visitor.getGraph();
  }

  public static AppliedPTransform<?, ?, ?> getProducer(PValue value) {
    return getGraph(value.getPipeline()).getProducer(value);
  }
}