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// Copyright 2015 The Bazel Authors. All rights reserved.
//
// Licensed 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 com.google.devtools.build.lib.analysis;
import com.google.common.base.Preconditions;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Iterables;
import com.google.devtools.build.lib.actions.Artifact;
import com.google.devtools.build.lib.actions.ArtifactPathResolver;
import com.google.devtools.build.lib.actions.EventReportingArtifacts;
import com.google.devtools.build.lib.analysis.TopLevelArtifactHelper.ArtifactsInOutputGroup;
import com.google.devtools.build.lib.analysis.TopLevelArtifactHelper.ArtifactsToBuild;
import com.google.devtools.build.lib.buildeventstream.ArtifactGroupNamer;
import com.google.devtools.build.lib.buildeventstream.BuildEventContext;
import com.google.devtools.build.lib.buildeventstream.BuildEventId;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos.OutputGroup;
import com.google.devtools.build.lib.buildeventstream.BuildEventWithOrderConstraint;
import com.google.devtools.build.lib.buildeventstream.GenericBuildEvent;
import com.google.devtools.build.lib.causes.Cause;
import com.google.devtools.build.lib.collect.nestedset.NestedSet;
import com.google.devtools.build.lib.collect.nestedset.NestedSetBuilder;
import com.google.devtools.build.lib.collect.nestedset.NestedSetView;
import com.google.devtools.build.lib.collect.nestedset.Order;
import com.google.devtools.build.lib.skyframe.AspectValue;
import com.google.devtools.build.skyframe.SkyValue;
import java.util.Collection;
/** This event is fired as soon as a top-level aspect is either built or fails. */
public class AspectCompleteEvent
implements SkyValue, BuildEventWithOrderConstraint, EventReportingArtifacts {
private final AspectValue aspectValue;
private final NestedSet<Cause> rootCauses;
private final Collection<BuildEventId> postedAfter;
private final ArtifactPathResolver pathResolver;
private final ArtifactsToBuild artifacts;
private AspectCompleteEvent(
AspectValue aspectValue,
NestedSet<Cause> rootCauses,
ArtifactPathResolver pathResolver,
ArtifactsToBuild artifacts) {
this.aspectValue = aspectValue;
this.rootCauses =
(rootCauses == null) ? NestedSetBuilder.<Cause>emptySet(Order.STABLE_ORDER) : rootCauses;
ImmutableList.Builder postedAfterBuilder = ImmutableList.builder();
for (Cause cause : getRootCauses()) {
postedAfterBuilder.add(BuildEventId.fromCause(cause));
}
this.postedAfter = postedAfterBuilder.build();
this.pathResolver = pathResolver;
this.artifacts = artifacts;
}
/** Construct a successful target completion event. */
public static AspectCompleteEvent createSuccessful(
AspectValue value, ArtifactPathResolver pathResolver, ArtifactsToBuild artifacts) {
return new AspectCompleteEvent(value, null, pathResolver, artifacts);
}
/**
* Construct a target completion event for a failed target, with the given non-empty root causes.
*/
public static AspectCompleteEvent createFailed(AspectValue value, NestedSet<Cause> rootCauses) {
Preconditions.checkArgument(!Iterables.isEmpty(rootCauses));
return new AspectCompleteEvent(value, rootCauses, ArtifactPathResolver.IDENTITY, null);
}
/**
* Returns the target associated with the event.
*/
public AspectValue getAspectValue() {
return aspectValue;
}
/**
* Determines whether the target has failed or succeeded.
*/
public boolean failed() {
return !rootCauses.isEmpty();
}
/** Get the root causes of the target. May be empty. */
public Iterable<Cause> getRootCauses() {
return rootCauses;
}
@Override
public BuildEventId getEventId() {
return BuildEventId.aspectCompleted(
aspectValue.getLabel(), aspectValue.getAspect().getDescriptor().getDescription());
}
@Override
public Collection<BuildEventId> postedAfter() {
return postedAfter;
}
@Override
public Collection<BuildEventId> getChildrenEvents() {
return ImmutableList.of();
}
@Override
public ReportedArtifacts reportedArtifacts() {
ImmutableSet.Builder<NestedSet<Artifact>> builder = ImmutableSet.builder();
if (artifacts != null) {
for (ArtifactsInOutputGroup artifactsInGroup : artifacts.getAllArtifactsByOutputGroup()) {
builder.add(artifactsInGroup.getArtifacts());
}
}
return new ReportedArtifacts(builder.build(), pathResolver);
}
@Override
public BuildEventStreamProtos.BuildEvent asStreamProto(BuildEventContext converters) {
ArtifactGroupNamer namer = converters.artifactGroupNamer();
BuildEventStreamProtos.TargetComplete.Builder builder =
BuildEventStreamProtos.TargetComplete.newBuilder();
builder.setSuccess(!failed());
if (artifacts != null) {
for (ArtifactsInOutputGroup artifactsInGroup : artifacts.getAllArtifactsByOutputGroup()) {
OutputGroup.Builder groupBuilder = OutputGroup.newBuilder();
groupBuilder.setName(artifactsInGroup.getOutputGroup());
groupBuilder.addFileSets(
namer.apply(
(new NestedSetView<Artifact>(artifactsInGroup.getArtifacts())).identifier()));
builder.addOutputGroup(groupBuilder.build());
}
}
return GenericBuildEvent.protoChaining(this).setCompleted(builder.build()).build();
}
}