| | | 1 | | using System.Text.Json; |
| | | 2 | | using System.Text.Json.Serialization; |
| | | 3 | | using Elsa.Extensions; |
| | | 4 | | using Elsa.Workflows.Memory; |
| | | 5 | | using Elsa.Workflows.Models; |
| | | 6 | | using Elsa.Common.Serialization; |
| | | 7 | | |
| | | 8 | | namespace Elsa.Workflows.Serialization.Converters; |
| | | 9 | | |
| | | 10 | | /// <summary> |
| | | 11 | | /// Serializes <see cref="Input"/> objects. |
| | | 12 | | /// </summary> |
| | | 13 | | public class OutputJsonConverter<T> : JsonConverter<Output<T>?> |
| | | 14 | | { |
| | | 15 | | private readonly ISerializationTypeRegistry _workflowJsonTypeRegistry; |
| | | 16 | | |
| | | 17 | | /// <inheritdoc /> |
| | 2946 | 18 | | public OutputJsonConverter(ISerializationTypeRegistry workflowJsonTypeRegistry) |
| | | 19 | | { |
| | 2946 | 20 | | _workflowJsonTypeRegistry = workflowJsonTypeRegistry; |
| | 2946 | 21 | | } |
| | | 22 | | |
| | | 23 | | /// <inheritdoc /> |
| | 2 | 24 | | public override bool CanConvert(Type typeToConvert) => typeof(Output).IsAssignableFrom(typeToConvert); |
| | | 25 | | |
| | | 26 | | /// <inheritdoc /> |
| | | 27 | | public override Output<T>? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options) |
| | | 28 | | { |
| | 2 | 29 | | if (!JsonDocument.TryParseValue(ref reader, out var doc)) |
| | 0 | 30 | | return null; |
| | | 31 | | |
| | 2 | 32 | | if (!doc.RootElement.TryGetProperty("typeName", out _)) |
| | 0 | 33 | | return null; |
| | | 34 | | |
| | 2 | 35 | | var memoryReferenceElement = doc.RootElement.GetProperty("memoryReference"); |
| | | 36 | | |
| | 2 | 37 | | if (!memoryReferenceElement.TryGetProperty("id", out var memoryReferenceIdElement)) |
| | 0 | 38 | | return default; |
| | | 39 | | |
| | 2 | 40 | | var variable = new Variable |
| | 2 | 41 | | { |
| | 2 | 42 | | Id = memoryReferenceIdElement.GetString()! |
| | 2 | 43 | | }; |
| | 2 | 44 | | variable.Name = variable.Id; |
| | | 45 | | |
| | 2 | 46 | | var output = (Output<T>)Activator.CreateInstance(typeof(Output<T>), variable)!; |
| | | 47 | | |
| | 2 | 48 | | if (doc.RootElement.TryGetProperty("converter", out var converterElement) && |
| | 2 | 49 | | converterElement.ValueKind == JsonValueKind.Object && |
| | 2 | 50 | | converterElement.TryGetProperty("id", out var converterIdElement)) |
| | | 51 | | { |
| | 1 | 52 | | var settings = converterElement.TryGetProperty("settings", out var settingsElement) |
| | 1 | 53 | | ? settingsElement |
| | 1 | 54 | | : (JsonElement?)null; |
| | 1 | 55 | | var converterId = converterIdElement.ValueKind == JsonValueKind.String |
| | 1 | 56 | | ? converterIdElement.GetString() |
| | 1 | 57 | | : null; |
| | 1 | 58 | | output.Converter = new(converterId ?? string.Empty, settings); |
| | | 59 | | } |
| | | 60 | | |
| | 2 | 61 | | return output; |
| | | 62 | | } |
| | | 63 | | |
| | | 64 | | /// <inheritdoc /> |
| | | 65 | | public override void Write(Utf8JsonWriter writer, Output<T>? value, JsonSerializerOptions options) |
| | | 66 | | { |
| | 506 | 67 | | var valueType = typeof(T); |
| | 506 | 68 | | var valueTypeAlias = SerializationTypeResolver.TryGetAlias(_workflowJsonTypeRegistry, valueType, out var alias) |
| | 506 | 69 | | ? alias |
| | 506 | 70 | | : valueType.GetSimpleAssemblyQualifiedName(); |
| | | 71 | | |
| | 506 | 72 | | writer.WriteStartObject(); |
| | 506 | 73 | | writer.WriteString("typeName", valueTypeAlias); |
| | 506 | 74 | | writer.WritePropertyName("memoryReference"); |
| | | 75 | | |
| | 506 | 76 | | if (value == null) |
| | 0 | 77 | | writer.WriteNullValue(); |
| | | 78 | | else |
| | | 79 | | { |
| | 506 | 80 | | writer.WriteStartObject(); |
| | 506 | 81 | | writer.WriteString("id", value.MemoryBlockReference().Id); |
| | 506 | 82 | | writer.WriteEndObject(); |
| | | 83 | | } |
| | | 84 | | |
| | 506 | 85 | | if (value?.Converter != null) |
| | | 86 | | { |
| | 1 | 87 | | writer.WritePropertyName("converter"); |
| | 1 | 88 | | writer.WriteStartObject(); |
| | 1 | 89 | | writer.WriteString("id", value.Converter.Id); |
| | | 90 | | |
| | 1 | 91 | | if (value.Converter.Settings is { } settings) |
| | | 92 | | { |
| | 1 | 93 | | writer.WritePropertyName("settings"); |
| | 1 | 94 | | settings.WriteTo(writer); |
| | | 95 | | } |
| | | 96 | | |
| | 1 | 97 | | writer.WriteEndObject(); |
| | | 98 | | } |
| | | 99 | | |
| | 506 | 100 | | writer.WriteEndObject(); |
| | 506 | 101 | | } |
| | | 102 | | } |