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using System;
using System.Globalization;
namespace Timeline.Services.Imaging
{
[Serializable]
public class ImageException : Exception
{
public enum ErrorReason
{
/// <summary>
/// Decoding image failed.
/// </summary>
CantDecode,
/// <summary>
/// Decoding succeeded but the real type is not the specified type.
/// </summary>
UnmatchedFormat,
/// <summary>
/// Image is not of required size.
/// </summary>
BadSize,
/// <summary>
/// Other unknown errer.
/// </summary>
Unknown
}
public ImageException() : this(null) { }
public ImageException(string? message) : this(message, null) { }
public ImageException(string? message, Exception? inner) : this(ErrorReason.Unknown, null, null, null, message, inner) { }
public ImageException(ErrorReason error, byte[]? data, string? requestType, string? realType, Exception? inner) : this(error, data, requestType, realType, null, inner) { }
public ImageException(ErrorReason error, byte[]? data, string? requestType = null, string? realType = null, string? message = null, Exception? inner = null) : base(message ?? MakeMessage(error), inner) { Error = error; ImageData = data; RequestType = requestType; RealType = realType; }
protected ImageException(
System.Runtime.Serialization.SerializationInfo info,
System.Runtime.Serialization.StreamingContext context) : base(info, context) { }
private static string MakeMessage(ErrorReason? reason) =>
string.Format(CultureInfo.CurrentCulture, Resource.ExceptionImage, reason switch
{
ErrorReason.CantDecode => Resource.ExceptionImageReasonCantDecode,
ErrorReason.UnmatchedFormat => Resource.ExceptionImageReasonUnmatchedFormat,
ErrorReason.BadSize => Resource.ExceptionImageReasonBadSize,
_ => Resource.ExceptionImageReasonUnknownError
});
public ErrorReason Error { get; }
public byte[]? ImageData { get; }
public string? RequestType { get; }
// This field will be null if decoding failed.
public string? RealType { get; }
}
}
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