| /* |
| * Copyright (C) 2020 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 com.android.server.timezonedetector.location; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.content.Context; |
| import android.os.Bundle; |
| import android.os.RemoteCallback; |
| import android.service.timezone.TimeZoneProviderService; |
| import android.util.IndentingPrintWriter; |
| |
| /** |
| * A {@link LocationTimeZoneProviderProxy} that provides minimal responses needed for the {@link |
| * BinderLocationTimeZoneProvider} to operate correctly when there is no "real" provider |
| * configured / enabled. This can be used during development / testing, or in a production build |
| * when the platform supports more providers than are needed for an Android deployment. |
| * |
| * <p>For example, if the {@link LocationTimeZoneProviderController} supports a primary |
| * and a secondary {@link LocationTimeZoneProvider}, but only a primary is configured, the secondary |
| * config will be left null and the {@link LocationTimeZoneProviderProxy} implementation will be |
| * defaulted to a {@link NullLocationTimeZoneProviderProxy}. The {@link |
| * NullLocationTimeZoneProviderProxy} sends a "permanent failure" event immediately after being |
| * started for the first time, which ensures the {@link LocationTimeZoneProviderController} won't |
| * expect any further {@link TimeZoneProviderEvent}s to come from it, and won't attempt to use it |
| * again. |
| */ |
| class NullLocationTimeZoneProviderProxy extends LocationTimeZoneProviderProxy { |
| |
| /** Creates the instance. */ |
| NullLocationTimeZoneProviderProxy( |
| @NonNull Context context, @NonNull ThreadingDomain threadingDomain) { |
| super(context, threadingDomain); |
| } |
| |
| @Override |
| void onInitialize() { |
| // No-op |
| } |
| |
| @Override |
| void onDestroy() { |
| // No-op |
| } |
| |
| @Override |
| void setRequest(@NonNull TimeZoneProviderRequest request) { |
| if (request.sendUpdates()) { |
| TimeZoneProviderEvent event = TimeZoneProviderEvent.createPermanentFailureEvent( |
| "Provider is disabled"); |
| handleTimeZoneProviderEvent(event); |
| } |
| } |
| |
| @Override |
| void handleTestCommand(@NonNull TestCommand testCommand, @Nullable RemoteCallback callback) { |
| if (callback != null) { |
| Bundle result = new Bundle(); |
| result.putBoolean(TimeZoneProviderService.TEST_COMMAND_RESULT_SUCCESS_KEY, false); |
| result.putString(TimeZoneProviderService.TEST_COMMAND_RESULT_ERROR_KEY, |
| "Provider is disabled"); |
| callback.sendResult(result); |
| } |
| } |
| |
| @Override |
| public void dump(@NonNull IndentingPrintWriter ipw, @Nullable String[] args) { |
| synchronized (mSharedLock) { |
| ipw.println("{NullLocationTimeZoneProviderProxy}"); |
| } |
| } |
| } |