1 /* 2 * Copyright 2020 The Android Open Source Project 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 17 package android.app.appsearch.testutil; 18 19 import android.annotation.NonNull; 20 import android.app.appsearch.AppSearchResult; 21 import android.app.appsearch.SearchResult; 22 import android.app.appsearch.SearchResults; 23 import android.app.appsearch.SearchResultsShim; 24 25 import com.google.common.util.concurrent.Futures; 26 import com.google.common.util.concurrent.ListenableFuture; 27 import com.google.common.util.concurrent.SettableFuture; 28 29 import java.util.List; 30 import java.util.Objects; 31 import java.util.concurrent.Executor; 32 33 /** 34 * This test class adapts the AppSearch Framework API to ListenableFuture, so it can be tested via 35 * a consistent interface. 36 * @hide 37 */ 38 public class SearchResultsShimImpl implements SearchResultsShim { 39 private final Executor mExecutor; 40 private final SearchResults mSearchResults; 41 SearchResultsShimImpl(@onNull SearchResults searchResults, @NonNull Executor executor)42 SearchResultsShimImpl(@NonNull SearchResults searchResults, @NonNull Executor executor) { 43 mExecutor = Objects.requireNonNull(executor); 44 mSearchResults = Objects.requireNonNull(searchResults); 45 } 46 47 @NonNull getNextPageAsync()48 public ListenableFuture<List<SearchResult>> getNextPageAsync() { 49 SettableFuture<AppSearchResult<List<SearchResult>>> future = SettableFuture.create(); 50 mSearchResults.getNextPage(mExecutor, future::set); 51 return Futures.transform(future, AppSearchResult::getResultValue, mExecutor); 52 } 53 54 @Override close()55 public void close() { 56 mSearchResults.close(); 57 } 58 } 59