| // Copyright 2018 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.remote.worker; |
| |
| import build.bazel.remote.execution.v2.ActionCacheUpdateCapabilities; |
| import build.bazel.remote.execution.v2.CacheCapabilities; |
| import build.bazel.remote.execution.v2.CapabilitiesGrpc.CapabilitiesImplBase; |
| import build.bazel.remote.execution.v2.DigestFunction; |
| import build.bazel.remote.execution.v2.ExecutionCapabilities; |
| import build.bazel.remote.execution.v2.GetCapabilitiesRequest; |
| import build.bazel.remote.execution.v2.ServerCapabilities; |
| import build.bazel.remote.execution.v2.SymlinkAbsolutePathStrategy; |
| import build.bazel.semver.SemVer; |
| import com.google.devtools.build.lib.remote.ApiVersion; |
| import com.google.devtools.build.lib.remote.util.DigestUtil; |
| import io.grpc.stub.StreamObserver; |
| |
| /** A basic implementation of a Capabilities service. */ |
| final class CapabilitiesServer extends CapabilitiesImplBase { |
| private final DigestUtil digestUtil; |
| private final boolean execEnabled; |
| |
| public CapabilitiesServer(DigestUtil digestUtil, boolean execEnabled) { |
| this.digestUtil = digestUtil; |
| this.execEnabled = execEnabled; |
| } |
| |
| @Override |
| public void getCapabilities( |
| GetCapabilitiesRequest request, StreamObserver<ServerCapabilities> responseObserver) { |
| SemVer current = ApiVersion.current.toSemVer(); |
| DigestFunction.Value df = digestUtil.getDigestFunction(); |
| ServerCapabilities.Builder response = |
| ServerCapabilities.newBuilder() |
| .setLowApiVersion(current) |
| .setHighApiVersion(current) |
| .setCacheCapabilities( |
| CacheCapabilities.newBuilder() |
| .addDigestFunction(df) |
| .setSymlinkAbsolutePathStrategy(SymlinkAbsolutePathStrategy.Value.DISALLOWED) |
| .setActionCacheUpdateCapabilities( |
| ActionCacheUpdateCapabilities.newBuilder().setUpdateEnabled(true).build()) |
| .setMaxBatchTotalSizeBytes(CasServer.MAX_BATCH_SIZE_BYTES) |
| .build()); |
| if (execEnabled) { |
| response.setExecutionCapabilities( |
| ExecutionCapabilities.newBuilder().setDigestFunction(df).setExecEnabled(true).build()); |
| } |
| responseObserver.onNext(response.build()); |
| responseObserver.onCompleted(); |
| } |
| } |