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//-----------------------------------------------------------------------
// <copyright file="TimespanSecondsEncoder.cs" company="Outercurve Foundation">
// Copyright (c) Outercurve Foundation. All rights reserved.
// </copyright>
//-----------------------------------------------------------------------
namespace DotNetOpenAuth.Messaging {
using System;
using System.Globalization;
using DotNetOpenAuth.Messaging.Reflection;
/// <summary>
/// Encodes and decodes the <see cref="TimeSpan"/> as an integer of total seconds.
/// </summary>
internal class TimespanSecondsEncoder : IMessagePartEncoder, IMessagePartFormattingEncoder {
/// <summary>
/// Initializes a new instance of the <see cref="TimespanSecondsEncoder"/> class.
/// </summary>
public TimespanSecondsEncoder() {
// Note that this constructor is public so it can be instantiated via Activator.
}
#region IMessagePartFormattingEncoder members
/// <summary>
/// Gets the type of the encoded values produced by this encoder, as they would appear in their preferred form.
/// </summary>
public Type FormattingType {
get { return typeof(int); }
}
#endregion
#region IMessagePartEncoder Members
/// <summary>
/// Encodes the specified value.
/// </summary>
/// <param name="value">The value. Guaranteed to never be null.</param>
/// <returns>
/// The <paramref name="value"/> in string form, ready for message transport.
/// </returns>
public string Encode(object value) {
TimeSpan? timeSpan = value as TimeSpan?;
if (timeSpan.HasValue) {
return timeSpan.Value.TotalSeconds.ToString(CultureInfo.InvariantCulture);
} else {
return null;
}
}
/// <summary>
/// Decodes the specified value.
/// </summary>
/// <param name="value">The string value carried by the transport. Guaranteed to never be null, although it may be empty.</param>
/// <returns>
/// The deserialized form of the given string.
/// </returns>
/// <exception cref="FormatException">Thrown when the string value given cannot be decoded into the required object type.</exception>
public object Decode(string value) {
return TimeSpan.FromSeconds(double.Parse(value, CultureInfo.InvariantCulture));
}
#endregion
}
}
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