1 /*
2  * Copyright 2024 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 androidx.work.worker
18 
19 import android.content.Context
20 import androidx.concurrent.futures.CallbackToFutureAdapter
21 import androidx.work.ListenableWorker
22 import androidx.work.WorkerParameters
23 import com.google.common.util.concurrent.ListenableFuture
24 
25 open class NeverResolvedWorker(context: Context, workerParams: WorkerParameters) :
26     ListenableWorker(context, workerParams) {
27     // specially leak completer reference and keep it around.
28     // otherwise future will be automatically cancelled.
29     private lateinit var completer: CallbackToFutureAdapter.Completer<Result>
30 
startWorknull31     override fun startWork(): ListenableFuture<Result> {
32         return CallbackToFutureAdapter.getFuture {
33             completer = it
34             "never resolved"
35         }
36     }
37 }
38