com.facebook.buck.rules.modern.builders.grpc.server.GrpcServer.java Source code

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Here is the source code for com.facebook.buck.rules.modern.builders.grpc.server.GrpcServer.java

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/*
 * Copyright 2018-present Facebook, Inc.
 *
 * 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.facebook.buck.rules.modern.builders.grpc.server;

import com.facebook.buck.rules.modern.builders.LocalContentAddressedStorage;
import com.facebook.buck.rules.modern.builders.grpc.GrpcRemoteExecution;
import com.facebook.buck.rules.modern.builders.grpc.GrpcRemoteExecutionServiceImpl;
import com.facebook.buck.util.NamedTemporaryDirectory;
import com.google.common.io.Closer;
import io.grpc.Server;
import io.grpc.netty.NettyServerBuilder;
import io.netty.channel.ChannelOption;
import java.io.Closeable;
import java.io.IOException;
import java.util.concurrent.TimeUnit;

/** A simple remote execution server. */
public class GrpcServer implements Closeable {
    private final Server server;
    private final NamedTemporaryDirectory workDir;

    public GrpcServer(int port) throws IOException {
        workDir = new NamedTemporaryDirectory("__remote__");
        GrpcRemoteExecutionServiceImpl remoteExecution = new GrpcRemoteExecutionServiceImpl(
                new LocalContentAddressedStorage(workDir.getPath().resolve("__cache__"),
                        GrpcRemoteExecution.PROTOCOL),
                workDir.getPath().resolve("__work__"));
        NettyServerBuilder builder = NettyServerBuilder.forPort(port);

        builder.maxMessageSize(500 * 1024 * 1024);
        builder.withChildOption(ChannelOption.SO_REUSEADDR, true);
        remoteExecution.getServices().forEach(builder::addService);
        this.server = builder.build().start();
    }

    public void awaitTermination() throws InterruptedException {
        server.awaitTermination();
    }

    @Override
    public void close() throws IOException {
        try (Closer closer = Closer.create()) {
            closer.register(server::shutdown);
            closer.register(workDir);
        }
        try {
            server.awaitTermination(3, TimeUnit.SECONDS);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }
}