// 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 log = 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) { log.log(Level.SEVERE, e.getMessage(), e); @SuppressWarnings({"unused", "nullness"}) Future<?> possiblyIgnoredError = close(); } } }