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/*
* Copyright (C) 2016 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.voicemailomtp.protocol;
import android.app.PendingIntent;
import android.content.Context;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.telecom.PhoneAccountHandle;
import android.telephony.SmsManager;
import com.android.voicemailomtp.ActivationTask;
import com.android.voicemailomtp.DefaultOmtpEventHandler;
import com.android.voicemailomtp.OmtpEvents;
import com.android.voicemailomtp.OmtpVvmCarrierConfigHelper;
import com.android.voicemailomtp.VoicemailStatus;
import com.android.voicemailomtp.sms.OmtpMessageSender;
import com.android.voicemailomtp.sms.StatusMessage;
public abstract class VisualVoicemailProtocol {
/**
* Activation should cause the carrier to respond with a STATUS SMS.
*/
public void startActivation(OmtpVvmCarrierConfigHelper config, PendingIntent sentIntent) {
OmtpMessageSender messageSender = ProtocolHelper.getMessageSender(this, config);
if (messageSender != null) {
messageSender.requestVvmActivation(sentIntent);
}
}
public void startDeactivation(OmtpVvmCarrierConfigHelper config) {
OmtpMessageSender messageSender = ProtocolHelper.getMessageSender(this, config);
if (messageSender != null) {
messageSender.requestVvmDeactivation(null);
}
}
public boolean supportsProvisioning() {
return false;
}
public void startProvisioning(ActivationTask task, PhoneAccountHandle handle,
OmtpVvmCarrierConfigHelper config, VoicemailStatus.Editor editor, StatusMessage message,
Bundle data) {
// Do nothing
}
public void requestStatus(OmtpVvmCarrierConfigHelper config,
@Nullable PendingIntent sentIntent) {
OmtpMessageSender messageSender = ProtocolHelper.getMessageSender(this, config);
if (messageSender != null) {
messageSender.requestVvmStatus(sentIntent);
}
}
public abstract OmtpMessageSender createMessageSender(Context context,
PhoneAccountHandle phoneAccountHandle,
short applicationPort, String destinationNumber);
/**
* Translate an OMTP IMAP command to the protocol specific one. For example, changing the TUI
* password on OMTP is XCHANGE_TUI_PWD, but on CVVM and VVM3 it is CHANGE_TUI_PWD.
*
* @param command A String command in {@link com.android.voicemailomtp.OmtpConstants}, the exact
* instance should be used instead of its' value.
* @returns Translated command, or {@code null} if not available in this protocol
*/
public String getCommand(String command) {
return command;
}
public void handleEvent(Context context, OmtpVvmCarrierConfigHelper config,
VoicemailStatus.Editor status, OmtpEvents event) {
DefaultOmtpEventHandler.handleEvent(context, config, status, event);
}
/**
* Given an VVM SMS with an unknown {@code event}, let the protocol attempt to translate it into
* an equivalent STATUS SMS. Returns {@code null} if it cannot be translated.
*/
@Nullable
public Bundle translateStatusSmsBundle(OmtpVvmCarrierConfigHelper config, String event,
Bundle data) {
return null;
}
}
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