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Add initial Activity / Metric support (#183)

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Stephen Toub 2025-04-02 11:09:05 -04:00 • committed by GitHub
commit 4b38d3e71b
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GPG key ID: B5690EEEBB952194
2 changed files with 443 additions and 61 deletions
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23
src/ModelContextProtocol/Protocol/Messages/ProgressToken.cs
View file

@ -12,15 +12,15 @@ namespace ModelContextProtocol.Protocol.Messages;
[JsonConverter(typeof(Converter))]
public readonly struct ProgressToken : IEquatable<ProgressToken>
{
/// <summary>The id, either a string or a boxed long or null.</summary>
private readonly object? _id;
/// <summary>The token, either a string or a boxed long or null.</summary>
private readonly object? _token;
/// <summary>Initializes a new instance of the <see cref="ProgressToken"/> with a specified value.</summary>
/// <param name="value">The required ID value.</param>
public ProgressToken(string value)
{
Throw.IfNull(value);
_id = value;
_token = value;
}
/// <summary>Initializes a new instance of the <see cref="ProgressToken"/> with a specified value.</summary>
@ -28,28 +28,29 @@ public readonly struct ProgressToken : IEquatable<ProgressToken>
public ProgressToken(long value)
{
// Box the long. Progress tokens are almost always strings in practice, so this should be rare.
_id = value;
_token = value;
}
/// <summary>Gets whether the identifier is uninitialized.</summary>
public bool IsDefault => _id is null;
/// <summary>Gets the underlying object for this token.</summary>
/// <remarks>This will either be a <see cref="string"/>, a boxed <see cref="long"/>, or <see langword="null"/>.</remarks>
public object? Token => _token;
/// <inheritdoc />
public override string? ToString() =>
_id is string stringValue ? $"\"{stringValue}\"" :
_id is long longValue ? longValue.ToString(CultureInfo.InvariantCulture) :
_token is string stringValue ? $"{stringValue}" :
_token is long longValue ? longValue.ToString(CultureInfo.InvariantCulture) :
null;
/// <summary>
/// Compares this ProgressToken to another ProgressToken.
/// </summary>
public bool Equals(ProgressToken other) => Equals(_id, other._id);
public bool Equals(ProgressToken other) => Equals(_token, other._token);
/// <inheritdoc />
public override bool Equals(object? obj) => obj is ProgressToken other && Equals(other);
/// <inheritdoc />
public override int GetHashCode() => _id?.GetHashCode() ?? 0;
public override int GetHashCode() => _token?.GetHashCode() ?? 0;
/// <summary>
/// Compares two ProgressTokens for equality.
@ -83,7 +84,7 @@ public readonly struct ProgressToken : IEquatable<ProgressToken>
{
Throw.IfNull(writer);
switch (value._id)
switch (value._token)
{
case string str:
writer.WriteStringValue(str);

7
src/ModelContextProtocol/Protocol/Messages/RequestId.cs
View file

@ -31,12 +31,13 @@ public readonly struct RequestId : IEquatable<RequestId>
_id = value;
}
/// <summary>Gets whether the identifier is uninitialized.</summary>
public bool IsDefault => _id is null;
/// <summary>Gets the underlying object for this id.</summary>
/// <remarks>This will either be a <see cref="string"/>, a boxed <see cref="long"/>, or <see langword="null"/>.</remarks>
public object? Id => _id;
/// <inheritdoc />
public override string ToString() =>
_id is string stringValue ? $"\"{stringValue}\"" :
_id is string stringValue ? stringValue :
_id is long longValue ? longValue.ToString(CultureInfo.InvariantCulture) :
string.Empty;