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// Copyright 2016 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.buildeventstream;
import com.google.common.collect.ImmutableList;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos.BuildEventId;
import java.util.Collection;
import javax.annotation.Nullable;
/**
* A {@link BuildEvent} reporting about progress.
*
* <p>Events of this type are used to report updates on the progress of the build. They are also
* used to chain in failure events where the canonical parents (e.g., test suites) can only be
* reported later.
*/
public final class ProgressEvent extends GenericBuildEvent {
@Nullable private final String out;
@Nullable private final String err;
/** The {@link BuildEventId} of the first progress event to be reported. */
public static final BuildEventId INITIAL_PROGRESS_UPDATE = BuildEventIdUtil.progressId(0);
private ProgressEvent(
BuildEventId id, Collection<BuildEventId> children, String out, String err) {
super(id, children);
this.out = out;
this.err = err;
}
@Override
public BuildEventStreamProtos.BuildEvent asStreamProto(BuildEventContext converters) {
BuildEventStreamProtos.Progress.Builder builder = BuildEventStreamProtos.Progress.newBuilder();
if (out != null) {
builder.setStdout(out);
}
if (err != null) {
builder.setStderr(err);
}
return GenericBuildEvent.protoChaining(this).setProgress(builder.build()).build();
}
/** Create a regular progress update with the given running number. */
public static BuildEvent progressUpdate(int number, String out, String err) {
BuildEventId id = BuildEventIdUtil.progressId(number);
BuildEventId next = BuildEventIdUtil.progressId(number + 1);
return new ProgressEvent(id, ImmutableList.of(next), out, err);
}
public static BuildEvent progressUpdate(int number) {
return progressUpdate(number, null, null);
}
/** Create a progress update event also chaining in a given id. */
public static BuildEvent progressChainIn(
int number, BuildEventId chainIn, String out, String err) {
BuildEventId id = BuildEventIdUtil.progressId(number);
BuildEventId next = BuildEventIdUtil.progressId(number + 1);
return new ProgressEvent(id, ImmutableList.of(next, chainIn), out, err);
}
public static BuildEvent progressChainIn(int number, BuildEventId chainIn) {
return progressChainIn(number, chainIn, null, null);
}
/**
* A progress update event with a given id, that has no children (and hence usually is the last
* progress event in the stream).
*/
public static BuildEvent finalProgressUpdate(
int number, @Nullable String out, @Nullable String err) {
BuildEventId id = BuildEventIdUtil.progressId(number);
return new ProgressEvent(id, ImmutableList.of(), out, err);
}
public static BuildEvent finalProgressUpdate(int number) {
return finalProgressUpdate(number, null, null);
}
}