1 /* 2 * Copyright 2022 Google LLC 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 package com.google.android.libraries.mobiledatadownload.internal.experimentation; 17 18 import static com.google.common.util.concurrent.Futures.immediateVoidFuture; 19 20 import com.google.common.util.concurrent.ListenableFuture; 21 import com.google.errorprone.annotations.CheckReturnValue; 22 import com.google.mobiledatadownload.internal.MetadataProto.DataFileGroupInternal; 23 import java.util.Collection; 24 25 /** Implementation of DownloadStageManager that does nothing. */ 26 @CheckReturnValue 27 public final class NoOpDownloadStageManager implements DownloadStageManager { 28 29 /** Clear all set experiment ids from phenotype. */ 30 @Override clearAll()31 public ListenableFuture<Void> clearAll() { 32 return immediateVoidFuture(); 33 } 34 35 @Override clearExperimentIdsForBuildsIfNoneActive( Collection<DataFileGroupInternal> fileGroupsToClear)36 public ListenableFuture<Void> clearExperimentIdsForBuildsIfNoneActive( 37 Collection<DataFileGroupInternal> fileGroupsToClear) { 38 return immediateVoidFuture(); 39 } 40 41 /** 42 * Propagates the experiment ids for {@code groupName} to phenotype. If there are multiple active 43 * builds with the given name, all experiment ids will be propagated. 44 * 45 * <p>Any failures encountered will be propagated to the returned future. 46 */ 47 @Override updateExperimentIds(String groupName)48 public ListenableFuture<Void> updateExperimentIds(String groupName) { 49 return immediateVoidFuture(); 50 } 51 } 52