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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.transports;
import static com.google.common.base.Preconditions.checkNotNull;
import com.google.devtools.build.lib.buildeventstream.ArtifactGroupNamer;
import com.google.devtools.build.lib.buildeventstream.BuildEvent;
import com.google.devtools.build.lib.buildeventstream.BuildEventConverters;
import com.google.devtools.build.lib.buildeventstream.BuildEventStreamProtos;
import com.google.devtools.build.lib.buildeventstream.BuildEventTransport;
import com.google.devtools.build.lib.buildeventstream.PathConverter;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.concurrent.Future;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* A simple {@link BuildEventTransport} that writes a varint delimited binary representation of
* {@link BuildEvent} protocol buffers to a file.
*/
public final class BinaryFormatFileTransport extends FileTransport {
private static final Logger logger = Logger.getLogger(BinaryFormatFileTransport.class.getName());
private static final int MAX_VARINT_BYTES = 9;
private final PathConverter pathConverter;
BinaryFormatFileTransport(String path, PathConverter pathConverter) {
super(path);
this.pathConverter = pathConverter;
}
@Override
public String name() {
return this.getClass().getSimpleName();
}
@Override
public synchronized void sendBuildEvent(BuildEvent event, final ArtifactGroupNamer namer) {
BuildEventConverters converters =
new BuildEventConverters() {
@Override
public PathConverter pathConverter() {
return pathConverter;
}
@Override
public ArtifactGroupNamer artifactGroupNamer() {
return namer;
}
};
checkNotNull(event);
BuildEventStreamProtos.BuildEvent protoEvent = event.asStreamProto(converters);
int maxSerializedSize = MAX_VARINT_BYTES + protoEvent.getSerializedSize();
ByteArrayOutputStream out = new ByteArrayOutputStream(maxSerializedSize);
try {
protoEvent.writeDelimitedTo(out);
writeData(out.toByteArray());
} catch (IOException e) {
logger.log(Level.SEVERE, e.getMessage(), e);
@SuppressWarnings({"unused", "nullness"})
Future<?> possiblyIgnoredError = close();
}
}
}