| /* |
| * Copyright 2017 The Android Open Source Project |
| * |
| * 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 androidx.work.impl.constraints.controllers; |
| |
| import static androidx.work.NetworkType.NOT_ROAMING; |
| |
| import android.content.Context; |
| import android.os.Build; |
| import android.support.annotation.NonNull; |
| |
| import androidx.work.Logger; |
| import androidx.work.impl.constraints.NetworkState; |
| import androidx.work.impl.constraints.trackers.Trackers; |
| import androidx.work.impl.model.WorkSpec; |
| |
| /** |
| * A {@link ConstraintController} for monitoring that the network connection is not roaming. |
| */ |
| |
| public class NetworkNotRoamingController extends ConstraintController<NetworkState> { |
| private static final String TAG = "NetworkNotRoamingCtrlr"; |
| |
| public NetworkNotRoamingController(Context context, OnConstraintUpdatedCallback callback) { |
| super(Trackers.getInstance(context).getNetworkStateTracker(), callback); |
| } |
| |
| @Override |
| boolean hasConstraint(@NonNull WorkSpec workSpec) { |
| return workSpec.constraints.getRequiredNetworkType() == NOT_ROAMING; |
| } |
| |
| /** |
| * Check for not-roaming constraint on API 24+, when JobInfo#NETWORK_TYPE_NOT_ROAMING was added, |
| * to be consistent with JobScheduler functionality. |
| */ |
| @Override |
| boolean isConstrained(@NonNull NetworkState state) { |
| if (Build.VERSION.SDK_INT < 24) { |
| Logger.debug(TAG, "Not-roaming network constraint is not supported before API 24, " |
| + "only checking for connected state."); |
| return !state.isConnected(); |
| } |
| return !state.isConnected() || !state.isNotRoaming(); |
| } |
| } |
