80 lines
3.0 KiB
Java
80 lines
3.0 KiB
Java
/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.dialer.assisteddialing;
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import android.support.annotation.NonNull;
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import com.android.dialer.common.LogUtil;
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import java.util.Optional;
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/**
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* The Mediator for Assisted Dialing.
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*
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* <p>This class is responsible for mediating location discovery of the user, determining if the
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* call is eligible for assisted dialing, and performing the transformation of numbers eligible for
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* assisted dialing.
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*/
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final class AssistedDialingMediatorImpl implements AssistedDialingMediator {
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private final LocationDetector locationDetector;
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private final NumberTransformer numberTransformer;
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AssistedDialingMediatorImpl(
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@NonNull LocationDetector locationDetector, @NonNull NumberTransformer numberTransformer) {
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if (locationDetector == null) {
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throw new NullPointerException("locationDetector was null");
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}
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if (numberTransformer == null) {
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throw new NullPointerException("numberTransformer was null");
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}
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this.locationDetector = locationDetector;
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this.numberTransformer = numberTransformer;
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}
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@Override
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public boolean isPlatformEligible() {
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// This impl is only instantiated if it passes platform checks in ConcreteCreator,
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// so we return true here.
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return true;
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}
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/** Returns the country code in which the library thinks the user typically resides. */
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@Override
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public Optional<String> userHomeCountryCode() {
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return locationDetector.getUpperCaseUserHomeCountry();
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}
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/**
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* Returns an Optional of type String containing the transformed number that was provided. The
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* transformed number should be capable of dialing out of the User's current country and
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* successfully connecting with a contact in the User's home country.
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*/
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@Override
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public Optional<TransformationInfo> attemptAssistedDial(@NonNull String numberToTransform) {
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Optional<String> userHomeCountryCode = locationDetector.getUpperCaseUserHomeCountry();
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Optional<String> userRoamingCountryCode = locationDetector.getUpperCaseUserRoamingCountry();
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if (!userHomeCountryCode.isPresent() || !userRoamingCountryCode.isPresent()) {
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LogUtil.i("AssistedDialingMediator.attemptAssistedDial", "Unable to determine country codes");
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return Optional.empty();
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}
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return numberTransformer.doAssistedDialingTransformation(
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numberToTransform, userHomeCountryCode.get(), userRoamingCountryCode.get());
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}
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}
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