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122 lines
4.9 KiB
122 lines
4.9 KiB
/*
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* Copyright (C) 2018 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 android.telecom;
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import android.annotation.NonNull;
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import android.annotation.SdkConstant;
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import android.annotation.SystemApi;
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import android.app.Service;
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import android.content.Intent;
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import android.os.IBinder;
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import android.os.RemoteException;
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import com.android.internal.telecom.IPhoneAccountSuggestionCallback;
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import com.android.internal.telecom.IPhoneAccountSuggestionService;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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/**
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* Base class for service that allows system apps to suggest phone accounts for outgoing calls.
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*
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* Phone account suggestions allow OEMs to intelligently select phone accounts based on knowledge
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* about the user's past behavior, carrier billing patterns, or other factors unknown to the AOSP
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* Telecom system.
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* OEMs who wish to provide a phone account suggestion service on their device should implement this
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* service in an app that resides in the /system/priv-app/ directory on their device. For security
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* reasons, the service's entry {@code AndroidManifest.xml} file must declare the
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* {@link android.Manifest.permission.BIND_PHONE_ACCOUNT_SUGGESTION_SERVICE} permission:
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* <pre>
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* {@code
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* <service android:name="your.package.YourServiceName"
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* android:permission="android.permission.BIND_PHONE_ACCOUNT_SUGGESTION_SERVICE">
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* <intent-filter>
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* <action android:name="android.telecom.PhoneAccountSuggestionService"/>
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* </intent-filter>
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* </service>
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* }
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* </pre>
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* Only one system app on each device may implement this service. If multiple system apps implement
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* this service, none of them will be queried for suggestions.
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* @hide
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*/
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@SystemApi
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public class PhoneAccountSuggestionService extends Service {
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/**
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* The {@link Intent} that must be declared in the {@code intent-filter} element of the
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* service's manifest entry.
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*/
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@SdkConstant(SdkConstant.SdkConstantType.SERVICE_ACTION)
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public static final String SERVICE_INTERFACE = "android.telecom.PhoneAccountSuggestionService";
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private IPhoneAccountSuggestionService mInterface = new IPhoneAccountSuggestionService.Stub() {
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@Override
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public void onAccountSuggestionRequest(IPhoneAccountSuggestionCallback callback,
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String number) {
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mCallbackMap.put(number, callback);
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PhoneAccountSuggestionService.this.onAccountSuggestionRequest(number);
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}
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};
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private final Map<String, IPhoneAccountSuggestionCallback> mCallbackMap =
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new HashMap<>();
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@Override
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public IBinder onBind(Intent intent) {
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return mInterface.asBinder();
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}
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/**
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* The system calls this method during the outgoing call flow if it needs account suggestions.
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*
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* The implementer of this service must override this method to implement its account suggestion
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* logic. After preparing the suggestions, the implementation of the service must call
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* {@link #suggestPhoneAccounts(String, List)} to deliver the suggestions back to the system.
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*
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* Note that the system will suspend the outgoing call process after it calls this method until
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* this service calls {@link #suggestPhoneAccounts}.
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*
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* @param number The phone number to provide suggestions for.
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*/
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public void onAccountSuggestionRequest(@NonNull String number) {}
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/**
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* The implementation of this service calls this method to deliver suggestions to the system.
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*
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* The implementation of this service must call this method after receiving a call to
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* {@link #onAccountSuggestionRequest(String)}. If no suggestions are available, pass an empty
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* list as the {@code suggestions} argument.
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*
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* @param number The phone number to provide suggestions for.
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* @param suggestions The list of suggestions.
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*/
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public final void suggestPhoneAccounts(@NonNull String number,
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@NonNull List<PhoneAccountSuggestion> suggestions) {
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IPhoneAccountSuggestionCallback callback = mCallbackMap.remove(number);
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if (callback == null) {
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Log.w(this, "No suggestions requested for the number %s", Log.pii(number));
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return;
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}
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try {
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callback.suggestPhoneAccounts(number, suggestions);
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} catch (RemoteException e) {
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Log.w(this, "Remote exception calling suggestPhoneAccounts");
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}
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}
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}
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