| /* |
| * Copyright (C) 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 com.android.dialer.assisteddialing; |
| |
| import android.annotation.TargetApi; |
| import android.os.Build.VERSION_CODES; |
| import android.support.annotation.NonNull; |
| import android.support.annotation.RequiresApi; |
| import com.android.dialer.common.LogUtil; |
| import java.util.Optional; |
| |
| /** |
| * The Mediator for Assisted Dialing. |
| * |
| * <p>This class is responsible for mediating location discovery of the user, determining if the |
| * call is eligible for assisted dialing, and performing the transformation of numbers eligible for |
| * assisted dialing. |
| */ |
| @RequiresApi(VERSION_CODES.N) |
| final class AssistedDialingMediatorImpl implements AssistedDialingMediator { |
| |
| private final LocationDetector locationDetector; |
| private final NumberTransformer numberTransformer; |
| |
| AssistedDialingMediatorImpl( |
| @NonNull LocationDetector locationDetector, @NonNull NumberTransformer numberTransformer) { |
| if (locationDetector == null) { |
| throw new NullPointerException("locationDetector was null"); |
| } |
| |
| if (numberTransformer == null) { |
| throw new NullPointerException("numberTransformer was null"); |
| } |
| this.locationDetector = locationDetector; |
| this.numberTransformer = numberTransformer; |
| } |
| |
| @Override |
| public boolean isPlatformEligible() { |
| // This impl is only instantiated if it passes platform checks in ConcreteCreator, |
| // so we return true here. |
| return true; |
| } |
| |
| /** Returns the country code in which the library thinks the user typically resides. */ |
| @Override |
| @SuppressWarnings("AndroidApiChecker") // Use of optional |
| @TargetApi(VERSION_CODES.N) |
| public Optional<String> userHomeCountryCode() { |
| return locationDetector.getUpperCaseUserHomeCountry(); |
| } |
| |
| /** |
| * Returns an Optional of type String containing the transformed number that was provided. The |
| * transformed number should be capable of dialing out of the User's current country and |
| * successfully connecting with a contact in the User's home country. |
| */ |
| @SuppressWarnings("AndroidApiChecker") // Use of optional |
| @TargetApi(VERSION_CODES.N) |
| @Override |
| public Optional<TransformationInfo> attemptAssistedDial(@NonNull String numberToTransform) { |
| Optional<String> userHomeCountryCode = locationDetector.getUpperCaseUserHomeCountry(); |
| Optional<String> userRoamingCountryCode = locationDetector.getUpperCaseUserRoamingCountry(); |
| |
| if (!userHomeCountryCode.isPresent() || !userRoamingCountryCode.isPresent()) { |
| LogUtil.i("AssistedDialingMediator.attemptAssistedDial", "Unable to determine country codes"); |
| return Optional.empty(); |
| } |
| |
| return numberTransformer.doAssistedDialingTransformation( |
| numberToTransform, userHomeCountryCode.get(), userRoamingCountryCode.get()); |
| } |
| } |