| | | 1 | | namespace Elsa.Workflows.Models; |
| | | 2 | | |
| | | 3 | | /// <summary> |
| | | 4 | | /// Stores activity output. |
| | | 5 | | /// </summary> |
| | | 6 | | public class ActivityOutputRegister |
| | | 7 | | { |
| | 621 | 8 | | private readonly Dictionary<string, List<ActivityOutputRecord>> _recordsByActivityIdAndOutputName = new(); |
| | 621 | 9 | | private readonly Dictionary<string, ActivityOutputRecord> _recordsByActivityInstanceIdAndOutputName = new(); |
| | | 10 | | |
| | | 11 | | /// <summary> |
| | | 12 | | /// The default output name. |
| | | 13 | | /// </summary> |
| | | 14 | | public const string DefaultOutputName = "Result"; |
| | | 15 | | |
| | | 16 | | /// <summary> |
| | | 17 | | /// Records an activity's output. |
| | | 18 | | /// </summary> |
| | | 19 | | /// <param name="activityExecutionContext">The activity execution context.</param> |
| | | 20 | | /// <param name="outputValue">The output value.</param> |
| | | 21 | | public void Record(ActivityExecutionContext activityExecutionContext, object? outputValue) |
| | | 22 | | { |
| | 0 | 23 | | Record(activityExecutionContext, null, outputValue); |
| | 0 | 24 | | } |
| | | 25 | | |
| | | 26 | | /// <summary> |
| | | 27 | | /// Records an activity's output. |
| | | 28 | | /// </summary> |
| | | 29 | | /// <param name="activityExecutionContext">The activity execution context.</param> |
| | | 30 | | /// <param name="outputName">The name of the output. Defaults to "Result"</param> |
| | | 31 | | /// <param name="outputValue">The output value.</param> |
| | | 32 | | public void Record(ActivityExecutionContext activityExecutionContext, string? outputName, object? outputValue) |
| | | 33 | | { |
| | 1730 | 34 | | var activityId = activityExecutionContext.Activity.Id; |
| | 1730 | 35 | | var activityInstanceId = activityExecutionContext.Id; |
| | 1730 | 36 | | var containerId = activityExecutionContext.ParentActivityExecutionContext?.Id ?? activityExecutionContext.Workfl |
| | | 37 | | |
| | 1730 | 38 | | outputName ??= DefaultOutputName; |
| | | 39 | | |
| | | 40 | | // Inspect the output descriptor to see if the specified output name matches any PropertyInfo's name. |
| | | 41 | | // If so, use that descriptor's name instead. |
| | 8822 | 42 | | var outputDescriptor = activityExecutionContext.ActivityDescriptor.Outputs.FirstOrDefault(x => x.PropertyInfo?.N |
| | | 43 | | |
| | 1730 | 44 | | if (outputDescriptor != null) |
| | 1719 | 45 | | outputName = outputDescriptor.Name; |
| | | 46 | | |
| | 1730 | 47 | | var record = new ActivityOutputRecord(containerId, activityId, activityInstanceId, outputName, outputValue); |
| | | 48 | | |
| | 1730 | 49 | | _recordsByActivityInstanceIdAndOutputName[CreateActivityInstanceIdLookupKey(activityInstanceId, outputName)] = r |
| | | 50 | | |
| | 1730 | 51 | | var scopedRecordsKey = CreateActivityIdLookupKey(activityId, outputName); |
| | | 52 | | |
| | 1730 | 53 | | if (!_recordsByActivityIdAndOutputName.TryGetValue(scopedRecordsKey, out var scopedRecords)) |
| | | 54 | | { |
| | 1695 | 55 | | scopedRecords = new(); |
| | 1695 | 56 | | _recordsByActivityIdAndOutputName[scopedRecordsKey] = scopedRecords; |
| | | 57 | | } |
| | | 58 | | |
| | 1730 | 59 | | scopedRecords.Add(record); |
| | 1730 | 60 | | } |
| | | 61 | | |
| | | 62 | | /// <summary> |
| | | 63 | | /// Finds all output records for the specified activity ID and output name. |
| | | 64 | | /// </summary> |
| | | 65 | | public IEnumerable<ActivityOutputRecord> FindMany(string activityId, string? outputName = null) |
| | | 66 | | { |
| | 1 | 67 | | var key = CreateActivityIdLookupKey(activityId, outputName); |
| | 1 | 68 | | return _recordsByActivityIdAndOutputName.TryGetValue(key, out var records) ? records : Enumerable.Empty<Activity |
| | | 69 | | } |
| | | 70 | | |
| | | 71 | | /// <summary> |
| | | 72 | | /// Gets the output value for the specified activity ID. |
| | | 73 | | /// </summary> |
| | | 74 | | /// <param name="activityId">The activity ID.</param> |
| | | 75 | | /// <param name="outputName">Name of the output.</param> |
| | | 76 | | /// <returns>The output value.</returns> |
| | | 77 | | public object? FindOutputByActivityId(string activityId, string? outputName = null) |
| | | 78 | | { |
| | 14 | 79 | | var key = CreateActivityIdLookupKey(activityId, outputName); |
| | 14 | 80 | | return !_recordsByActivityIdAndOutputName.TryGetValue(key, out var records) |
| | 14 | 81 | | ? null |
| | 14 | 82 | | : records.LastOrDefault()?.Value; // Always return the last value. |
| | | 83 | | } |
| | | 84 | | |
| | | 85 | | /// <summary> |
| | | 86 | | /// Gets the output value for the specified activity instance ID. |
| | | 87 | | /// </summary> |
| | | 88 | | /// <param name="activityInstanceId">The activity instance ID.</param> |
| | | 89 | | /// <param name="outputName"></param> |
| | | 90 | | /// <returns>The output value.</returns> |
| | | 91 | | public object? FindOutputByActivityInstanceId(string activityInstanceId, string? outputName = null) |
| | | 92 | | { |
| | 2191 | 93 | | var key = CreateActivityInstanceIdLookupKey(activityInstanceId, outputName); |
| | 2191 | 94 | | return !_recordsByActivityInstanceIdAndOutputName.TryGetValue(key, out var record) |
| | 2191 | 95 | | ? null |
| | 2191 | 96 | | : record.Value; |
| | | 97 | | } |
| | | 98 | | |
| | 1745 | 99 | | private string CreateActivityIdLookupKey(string activityId, string? outputName) => $"{activityId}:{outputName ?? Def |
| | 3921 | 100 | | private string CreateActivityInstanceIdLookupKey(string activityInstanceId, string? outputName) => $"{activityInstan |
| | | 101 | | } |