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      1 /*
      2  * Copyright (C) 2016 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package com.android.voicemail.impl.protocol;
     18 
     19 import android.text.TextUtils;
     20 import com.android.voicemail.impl.OmtpVvmCarrierConfigHelper;
     21 import com.android.voicemail.impl.VvmLog;
     22 import com.android.voicemail.impl.sms.OmtpMessageSender;
     23 
     24 public class ProtocolHelper {
     25 
     26   private static final String TAG = "ProtocolHelper";
     27 
     28   public static OmtpMessageSender getMessageSender(
     29       VisualVoicemailProtocol protocol, OmtpVvmCarrierConfigHelper config) {
     30 
     31     int applicationPort = config.getApplicationPort();
     32     String destinationNumber = config.getDestinationNumber();
     33     if (TextUtils.isEmpty(destinationNumber)) {
     34       VvmLog.w(TAG, "No destination number for this carrier.");
     35       return null;
     36     }
     37 
     38     return protocol.createMessageSender(
     39         config.getContext(),
     40         config.getPhoneAccountHandle(),
     41         (short) applicationPort,
     42         destinationNumber);
     43   }
     44 }
     45