src/Tizen.Multimedia.AudioIO/AudioIO/AudioIOUtil.cs

   1 /*
   2  * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
   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 using System;
  18 using System.Diagnostics;
  19 using System.Linq;
  20
  21 namespace Tizen.Multimedia
  22 {
  23     internal static class AudioIOUtil
  24     {
  25         internal static void ThrowIfError(int errorCode, string msg = null)
  26         {
  27             if (errorCode >= 0)
  28             {
  29                 Log.Info(nameof(AudioIOUtil), "No error.");
  30                 return;
  31             }
  32
  33             AudioIOError code = (AudioIOError)errorCode;
  34
  35             msg = $"{(msg == null ? "" : msg + " : ")}{ code }";
  36
  37             switch (code)
  38             {
  39                 case AudioIOError.OutOfMemory:
  40                     throw new OutOfMemoryException();
  41
  42                 case AudioIOError.InvalidParameter:
  43                     throw new ArgumentException(msg);
  44
  45                 case AudioIOError.DevicePolicyRestriction:
  46                 case AudioIOError.PermissionDenied:
  47                     throw new UnauthorizedAccessException(msg);
  48
  49                 case AudioIOError.SoundPolicy:
  50                     throw new AudioPolicyException(msg);
  51
  52                 case AudioIOError.NotSupportedType:
  53                 case AudioIOError.NotSupported:
  54                     throw new NotSupportedException(msg);
  55
  56                 case AudioIOError.DeviceNotOpened:
  57                 case AudioIOError.DeviceNotClosed:
  58                 case AudioIOError.InvalidBuffer:
  59                 case AudioIOError.InvalidOperation:
  60                 case AudioIOError.InvalidState:
  61                 default:
  62                     throw new InvalidOperationException(msg);
  63             }
  64         }
  65
  66         internal static void ValidateState(AudioIOState curState, params AudioIOState[] desiredStates)
  67         {
  68             Debug.Assert(desiredStates.Length > 0);
  69
  70             if (desiredStates.Contains(curState))
  71             {
  72                 return;
  73             }
  74
  75             throw new InvalidOperationException($"The audio is not in a valid state. " +
  76                 $"Current State : { curState }, Valid State : { string.Join(", ", desiredStates) }.");
  77         }
  78     }
  79 }