| // Copyright 2019 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.remote.common; |
| |
| import build.bazel.remote.execution.v2.Digest; |
| import com.google.common.collect.ImmutableSet; |
| import com.google.common.util.concurrent.ListenableFuture; |
| |
| /** Supports querying a remote cache whether it contains a list of blobs. */ |
| public interface MissingDigestsFinder { |
| |
| /** |
| * Returns a set of digests that the remote cache does not know about. The returned set is |
| * guaranteed to be a subset of {@code digests}. |
| * |
| * @param digests The list of digests to look for. |
| */ |
| ListenableFuture<ImmutableSet<Digest>> findMissingDigests(Iterable<Digest> digests); |
| } |