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using System;
using System.Globalization;
using System.Text;
namespace Timeline.Services.Exceptions
{
/// <summary>
/// Thrown when an entity is already exists.
/// </summary>
/// <remarks>
/// For example, want to create a timeline but a timeline with the same name already exists.
/// </remarks>
[Serializable]
public class EntityAlreadyExistException : Exception
{
private readonly string? _entityName;
public EntityAlreadyExistException() : this(null, null, null, null) { }
public EntityAlreadyExistException(string? entityName) : this(entityName, null) { }
public EntityAlreadyExistException(string? entityName, Exception? inner) : this(entityName, null, null, null, inner) { }
public EntityAlreadyExistException(string? entityName, object? entity = null) : this(entityName, null, entity, null, null) { }
public EntityAlreadyExistException(Type? entityType, object? entity = null) : this(null, entityType, entity, null, null) { }
public EntityAlreadyExistException(string? entityName, Type? entityType, object? entity = null, string? message = null, Exception? inner = null) : base(MakeMessage(entityName, entityType, message), inner)
{
_entityName = entityName;
EntityType = entityType;
Entity = entity;
}
private static string MakeMessage(string? entityName, Type? entityType, string? message)
{
string? name = entityName ?? (entityType?.Name);
var result = new StringBuilder();
if (name == null)
result.Append(Resources.Services.Exceptions.EntityAlreadyExistErrorDefault);
else
result.AppendFormat(CultureInfo.InvariantCulture, Resources.Services.Exceptions.EntityAlreadyExistError, name);
if (message != null)
{
result.Append(' ');
result.Append(message);
}
return result.ToString();
}
protected EntityAlreadyExistException(
System.Runtime.Serialization.SerializationInfo info,
System.Runtime.Serialization.StreamingContext context) : base(info, context) { }
public string? EntityName => _entityName ?? (EntityType?.Name);
public Type? EntityType { get; }
public object? Entity { get; }
}
}
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