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Diffstat (limited to 'java/com/android/dialer/assisteddialing/AssistedDialingMediator.java')
-rw-r--r-- | java/com/android/dialer/assisteddialing/AssistedDialingMediator.java | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/java/com/android/dialer/assisteddialing/AssistedDialingMediator.java b/java/com/android/dialer/assisteddialing/AssistedDialingMediator.java new file mode 100644 index 000000000..2613d07a9 --- /dev/null +++ b/java/com/android/dialer/assisteddialing/AssistedDialingMediator.java @@ -0,0 +1,81 @@ +/* + * 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 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. + */ +public final class AssistedDialingMediator { + + private final LocationDetector locationDetector; + private final NumberTransformer numberTransformer; + + protected AssistedDialingMediator( + @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; + } + + /** + * Returns a boolean for callers to quickly determine whether or not the AssistedDialingMediator + * thinks an attempt at assisted dialing is likely to succeed. + */ + public boolean conditionsEligibleForAssistedDialing( + @NonNull String numberToCheck, + @NonNull String userHomeCountryCode, + @NonNull String userRoamingCountryCode) { + return numberTransformer.canDoAssistedDialingTransformation( + numberToCheck, userHomeCountryCode, userRoamingCountryCode); + } + + /** + * 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) + public Optional<String> 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()); + } +} |