| | | 1 | | using System.Buffers; |
| | | 2 | | using System.Globalization; |
| | | 3 | | using System.Text; |
| | | 4 | | using System.Text.Json; |
| | | 5 | | |
| | | 6 | | namespace Orchestrator.Infrastructure.Langfuse; |
| | | 7 | | |
| | | 8 | | internal static class LangfuseJsonUtilities |
| | | 9 | | { |
| | | 10 | | public static bool IsDefined(JsonElement element) |
| | | 11 | | { |
| | 1 | 12 | | return element.ValueKind is not JsonValueKind.Undefined and not JsonValueKind.Null; |
| | | 13 | | } |
| | | 14 | | |
| | | 15 | | public static bool StableEquals(JsonElement left, JsonElement right) |
| | | 16 | | { |
| | 0 | 17 | | return string.Equals(ToStableJson(left), ToStableJson(right), StringComparison.Ordinal); |
| | | 18 | | } |
| | | 19 | | |
| | | 20 | | public static string ToStableJson(JsonElement value) |
| | | 21 | | { |
| | 0 | 22 | | var buffer = new ArrayBufferWriter<byte>(); |
| | 0 | 23 | | using (var writer = new Utf8JsonWriter(buffer)) |
| | | 24 | | { |
| | 0 | 25 | | WriteStableJson(writer, value); |
| | 0 | 26 | | } |
| | | 27 | | |
| | 0 | 28 | | return Encoding.UTF8.GetString(buffer.WrittenSpan); |
| | | 29 | | } |
| | | 30 | | |
| | | 31 | | private static void WriteStableJson(Utf8JsonWriter writer, JsonElement value) |
| | | 32 | | { |
| | 0 | 33 | | switch (value.ValueKind) |
| | | 34 | | { |
| | | 35 | | case JsonValueKind.Object: |
| | 0 | 36 | | writer.WriteStartObject(); |
| | 0 | 37 | | foreach (var property in value.EnumerateObject().OrderBy(property => property.Name, StringComparer.Ordin |
| | | 38 | | { |
| | 0 | 39 | | writer.WritePropertyName(property.Name); |
| | 0 | 40 | | WriteStableJson(writer, property.Value); |
| | | 41 | | } |
| | | 42 | | |
| | 0 | 43 | | writer.WriteEndObject(); |
| | 0 | 44 | | break; |
| | | 45 | | |
| | | 46 | | case JsonValueKind.Array: |
| | 0 | 47 | | writer.WriteStartArray(); |
| | 0 | 48 | | foreach (var item in value.EnumerateArray()) |
| | | 49 | | { |
| | 0 | 50 | | WriteStableJson(writer, item); |
| | | 51 | | } |
| | | 52 | | |
| | 0 | 53 | | writer.WriteEndArray(); |
| | 0 | 54 | | break; |
| | | 55 | | |
| | | 56 | | case JsonValueKind.String: |
| | 0 | 57 | | writer.WriteStringValue(value.GetString()); |
| | 0 | 58 | | break; |
| | | 59 | | |
| | | 60 | | case JsonValueKind.Number: |
| | 0 | 61 | | if (value.TryGetInt64(out var int64Value)) |
| | | 62 | | { |
| | 0 | 63 | | writer.WriteNumberValue(int64Value); |
| | | 64 | | } |
| | 0 | 65 | | else if (value.TryGetDecimal(out var decimalValue)) |
| | | 66 | | { |
| | 0 | 67 | | writer.WriteNumberValue(decimalValue); |
| | | 68 | | } |
| | | 69 | | else |
| | | 70 | | { |
| | 0 | 71 | | writer.WriteRawValue(value.GetRawText()); |
| | | 72 | | } |
| | | 73 | | |
| | 0 | 74 | | break; |
| | | 75 | | |
| | | 76 | | case JsonValueKind.True: |
| | 0 | 77 | | writer.WriteBooleanValue(true); |
| | 0 | 78 | | break; |
| | | 79 | | |
| | | 80 | | case JsonValueKind.False: |
| | 0 | 81 | | writer.WriteBooleanValue(false); |
| | 0 | 82 | | break; |
| | | 83 | | |
| | | 84 | | case JsonValueKind.Null: |
| | | 85 | | case JsonValueKind.Undefined: |
| | 0 | 86 | | writer.WriteNullValue(); |
| | 0 | 87 | | break; |
| | | 88 | | |
| | | 89 | | default: |
| | 0 | 90 | | throw new InvalidOperationException( |
| | 0 | 91 | | string.Format(CultureInfo.InvariantCulture, "Unsupported JSON value kind '{0}'.", value.ValueKind)); |
| | | 92 | | } |
| | | 93 | | } |
| | | 94 | | } |