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.content.res.Resources; 20 import android.support.annotation.Nullable; 21 import android.telephony.TelephonyManager; 22 import com.android.voicemail.VisualVoicemailTypeExtensions; 23 import com.android.voicemail.impl.VvmLog; 24 25 public class VisualVoicemailProtocolFactory { 26 27 private static final String TAG = "VvmProtocolFactory"; 28 29 @Nullable create(Resources resources, String type)30 public static VisualVoicemailProtocol create(Resources resources, String type) { 31 if (type == null) { 32 return null; 33 } 34 switch (type) { 35 case TelephonyManager.VVM_TYPE_OMTP: 36 return new OmtpProtocol(); 37 case TelephonyManager.VVM_TYPE_CVVM: 38 return new CvvmProtocol(); 39 case VisualVoicemailTypeExtensions.VVM_TYPE_VVM3: 40 return new Vvm3Protocol(); 41 default: 42 VvmLog.e(TAG, "Unexpected visual voicemail type: " + type); 43 } 44 return null; 45 } 46 } 47