[
https://issues.apache.org/jira/browse/BEAM-3565?focusedWorklogId=82954&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-82954
]
ASF GitHub Bot logged work on BEAM-3565:
----------------------------------------
Author: ASF GitHub Bot
Created on: 21/Mar/18 22:08
Start Date: 21/Mar/18 22:08
Worklog Time Spent: 10m
Work Description: tgroh commented on a change in pull request #4777:
[BEAM-3565] Add FusedPipeline#toPipeline
URL: https://github.com/apache/beam/pull/4777#discussion_r176252057
##########
File path:
runners/core-construction-java/src/test/java/org/apache/beam/runners/core/construction/graph/FusedPipelineTest.java
##########
@@ -0,0 +1,143 @@
+/*
+ * 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.core.construction.graph;
+
+import static com.google.common.base.Preconditions.checkState;
+import static org.hamcrest.Matchers.allOf;
+import static org.hamcrest.Matchers.equalTo;
+import static org.hamcrest.Matchers.hasItem;
+import static org.hamcrest.Matchers.hasItems;
+import static org.hamcrest.Matchers.hasKey;
+import static org.hamcrest.Matchers.not;
+import static org.hamcrest.Matchers.startsWith;
+import static org.junit.Assert.assertThat;
+
+import com.google.common.collect.ImmutableList;
+import java.io.Serializable;
+import java.util.HashSet;
+import java.util.Set;
+import org.apache.beam.model.pipeline.v1.RunnerApi;
+import org.apache.beam.model.pipeline.v1.RunnerApi.PCollection;
+import org.apache.beam.model.pipeline.v1.RunnerApi.PTransform;
+import org.apache.beam.runners.core.construction.PipelineTranslation;
+import org.apache.beam.sdk.Pipeline;
+import org.apache.beam.sdk.transforms.GroupByKey;
+import org.apache.beam.sdk.transforms.Impulse;
+import org.apache.beam.sdk.transforms.MapElements;
+import org.apache.beam.sdk.transforms.Values;
+import org.apache.beam.sdk.transforms.WithKeys;
+import org.apache.beam.sdk.values.TypeDescriptors;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+/** Tests for {@link FusedPipeline}. */
+@RunWith(JUnit4.class)
+public class FusedPipelineTest implements Serializable {
+ @Test
+ public void testToProto() {
+ Pipeline p = Pipeline.create();
+ p.apply("impulse", Impulse.create())
+ .apply("map", MapElements.into(TypeDescriptors.integers()).via(bytes
-> bytes.length))
+ .apply("key", WithKeys.of("foo"))
+ .apply("gbk", GroupByKey.create())
+ .apply("values", Values.create());
+
+ RunnerApi.Pipeline protoPipeline = PipelineTranslation.toProto(p);
+ checkState(
+ protoPipeline
+ .getRootTransformIdsList()
+ .containsAll(ImmutableList.of("impulse", "map", "key", "gbk",
"values")),
+ "Unexpected Root Transform IDs %s",
+ protoPipeline.getRootTransformIdsList());
+
+ FusedPipeline fused = GreedyPipelineFuser.fuse(protoPipeline);
+ checkState(
+ fused.getRunnerExecutedTransforms().size() == 2,
+ "Unexpected number of runner transforms %s",
+ fused.getRunnerExecutedTransforms());
+ checkState(
+ fused.getFusedStages().size() == 2,
+ "Unexpected number of fused stages %s",
+ fused.getFusedStages());
+ RunnerApi.Pipeline fusedProto =
fused.toPipeline(protoPipeline.getComponents());
+
+ assertThat(
+ "Root Transforms should all be present in the Pipeline Components",
+ fusedProto.getComponents().getTransformsMap().keySet(),
+ hasItems(fusedProto.getRootTransformIdsList().toArray(new String[0])));
+ assertThat(
+ "Should contain Impulse, GroupByKey, and two Environment Stages",
+ fusedProto.getRootTransformIdsCount(),
+ equalTo(4));
+ assertThat(fusedProto.getRootTransformIdsList(), hasItems("impulse",
"gbk"));
+ assertRootsInTopologicalOrder(fusedProto);
+ // Since MapElements, WithKeys, and Values are all composites of a ParDo,
we do prefix matching
+ // instead of looking at the inside of their expansions
+ assertThat(
+ "Fused transforms should be present in the components",
+ fusedProto.getComponents().getTransformsMap(),
+ allOf(hasKey(startsWith("map")), hasKey(startsWith("key")),
hasKey(startsWith("values"))));
+ assertThat(
+ "Fused transforms shouldn't be present in the root IDs",
+ fusedProto.getRootTransformIdsList(),
+ not(hasItems(startsWith("map"), startsWith("key"),
startsWith("values"))));
+
+ // The other components should be those of the original pipeline.
+ assertThat(
+ fusedProto.getComponents().getCodersMap(),
+ equalTo(protoPipeline.getComponents().getCodersMap()));
+ assertThat(
+ fusedProto.getComponents().getWindowingStrategiesMap(),
+ equalTo(protoPipeline.getComponents().getWindowingStrategiesMap()));
+ assertThat(
+ fusedProto.getComponents().getEnvironmentsMap(),
+ equalTo(protoPipeline.getComponents().getEnvironmentsMap()));
+ assertThat(
+ fusedProto.getComponents().getPcollectionsMap(),
+ equalTo(protoPipeline.getComponents().getPcollectionsMap()));
+ }
+
+ // For each transform in the root transforms, asserts that all consumed
PCollections have been
+ // produced, and no produced PCollection has been consumed
+ private void assertRootsInTopologicalOrder(RunnerApi.Pipeline fusedProto) {
+ Set<String> consumedPCollections = new HashSet<>();
+ Set<String> producedPCollections = new HashSet<>();
+ for (int i = 0; i < fusedProto.getRootTransformIdsCount(); i++) {
+ PTransform rootTransform =
+
fusedProto.getComponents().getTransformsOrThrow(fusedProto.getRootTransformIds(i));
+ assertThat(
+ String.format(
+ "All %s consumed by %s must be produced before it",
+ PCollection.class.getSimpleName(),
fusedProto.getRootTransformIds(i)),
+ producedPCollections,
+ hasItems(rootTransform.getInputsMap().values().toArray(new
String[0])));
+ for (String consumed : consumedPCollections) {
Review comment:
the `Pipeline` root transform ID's is really the top-level transforms
(transforms not contained in any other transform)
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Issue Time Tracking
-------------------
Worklog Id: (was: 82954)
Time Spent: 16h 40m (was: 16.5h)
> Add utilities for producing a collection of PTransforms that can execute in a
> single SDK Harness
> ------------------------------------------------------------------------------------------------
>
> Key: BEAM-3565
> URL: https://issues.apache.org/jira/browse/BEAM-3565
> Project: Beam
> Issue Type: Bug
> Components: runner-core
> Reporter: Thomas Groh
> Assignee: Thomas Groh
> Priority: Major
> Labels: portability
> Fix For: 2.4.0
>
> Time Spent: 16h 40m
> Remaining Estimate: 0h
>
> An SDK Harness executes some ("fused") collection of PTransforms. The java
> runner libraries should provide some way to take a Pipeline that executes in
> both a runner and an environment and construct a collection of transforms
> which can execute within a single environment.
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