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.dialer.app.voicemail.error; 18 19 import android.content.Context; 20 import android.os.Build.VERSION; 21 import android.os.Build.VERSION_CODES; 22 import android.support.annotation.Nullable; 23 import com.android.voicemail.VisualVoicemailTypeExtensions; 24 25 /** 26 * Given a VoicemailStatus, {@link VoicemailErrorMessageCreator#create(Context, VoicemailStatus)} 27 * will return a {@link VoicemailErrorMessage} representing the message to be shown to the user, or 28 * <code>null</code> if no message should be shown. 29 */ 30 public class VoicemailErrorMessageCreator { 31 32 @Nullable 33 public VoicemailErrorMessage create( 34 Context context, VoicemailStatus status, VoicemailStatusReader statusReader) { 35 // Never return error message before NMR1. Voicemail status is not supported on those. 36 if (VERSION.SDK_INT < VERSION_CODES.N_MR1) { 37 return null; 38 } 39 switch (status.type) { 40 case VisualVoicemailTypeExtensions.VVM_TYPE_VVM3: 41 return Vvm3VoicemailMessageCreator.create(context, status, statusReader); 42 default: 43 return OmtpVoicemailMessageCreator.create(context, status, statusReader); 44 } 45 } 46 } 47