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121 changes: 121 additions & 0 deletions
121
src/WebJobs.Extensions.DurableTask/EventSourcedDurabilityProvider.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| // Copyright (c) .NET Foundation. All rights reserved. | ||
| // Licensed under the MIT License. See LICENSE in the project root for license information. | ||
|
|
||
| using System; | ||
| using System.Collections.Generic; | ||
| using System.Linq; | ||
| using System.Threading; | ||
| using System.Threading.Tasks; | ||
| using DurableTask.Core; | ||
| using DurableTask.EventSourced; | ||
| using Newtonsoft.Json; | ||
|
|
||
| namespace Microsoft.Azure.WebJobs.Extensions.DurableTask | ||
| { | ||
| internal class EventSourcedDurabilityProvider : DurabilityProvider | ||
| { | ||
| private readonly EventSourcedOrchestrationService serviceClient; | ||
|
|
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| internal EventSourcedDurabilityProvider(EventSourcedOrchestrationService service, EventSourcedOrchestrationServiceSettings settings) | ||
| : base("EventSourced", service, service, "StorageConnectionString") | ||
| { | ||
| this.serviceClient = service; | ||
| this.Settings = settings; | ||
| } | ||
|
|
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| public EventSourcedOrchestrationServiceSettings Settings { get; private set; } | ||
|
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| public override bool SupportsEntities => true; | ||
|
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| public override bool SupportsPollFreeWait => true; | ||
|
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| public override bool GuaranteesOrderedDelivery => true; | ||
|
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| public override TimeSpan MaximumDelayTime { get; set; } = TimeSpan.MaxValue; | ||
|
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| /// <summary> | ||
| /// The app setting containing the Azure Storage connection string. | ||
| /// </summary> | ||
| public override string ConnectionName => "StorageConnectionString"; // TODO this needs to be refactored to work across providers | ||
|
|
||
| /// <inheritdoc/> | ||
| public override async Task StopAsync(bool isForced) | ||
| { | ||
| if (!this.Settings.KeepServiceRunning) | ||
| { | ||
| await this.serviceClient.StopAsync(isForced); | ||
| EventSourcedDurabilityProviderFactory.RemoveDurabilityProvider(this); | ||
| } | ||
| else | ||
| { | ||
| await this.PurgeHistoryByFilters(default, default, null); | ||
| } | ||
| } | ||
|
|
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| /// <inheritdoc/> | ||
| public async override Task<string> RetrieveSerializedEntityState(EntityId entityId, JsonSerializerSettings serializerSettings) | ||
| { | ||
| var instanceId = EntityId.GetSchedulerIdFromEntityId(entityId); | ||
| OrchestrationState state = await this.serviceClient.GetOrchestrationStateAsync(instanceId, true, true); | ||
|
|
||
| if (state != null | ||
| && state.OrchestrationInstance != null | ||
| && state.Input != null) | ||
| { | ||
| var schedulerState = JsonConvert.DeserializeObject<SchedulerState>(state.Input, serializerSettings); | ||
|
|
||
| if (schedulerState.EntityExists) | ||
| { | ||
| return schedulerState.EntityState; | ||
| } | ||
| } | ||
|
|
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| return null; | ||
| } | ||
|
|
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| /// <inheritdoc/> | ||
| public async override Task<IList<OrchestrationState>> GetOrchestrationStateWithInputsAsync(string instanceId, bool showInput = true) | ||
| { | ||
| var result = new List<OrchestrationState>(); | ||
| var state = await this.serviceClient.GetOrchestrationStateAsync(instanceId, showInput, true); | ||
| if (state != null) | ||
| { | ||
| result.Add(state); | ||
| } | ||
|
|
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| return result; | ||
| } | ||
|
|
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| /// <inheritdoc/> | ||
| public async override Task<PurgeHistoryResult> PurgeInstanceHistoryByInstanceId(string instanceId) | ||
| { | ||
| var numberInstancesDeleted = await this.serviceClient.PurgeInstanceHistoryAsync(instanceId); | ||
| return new PurgeHistoryResult(numberInstancesDeleted); | ||
| } | ||
|
|
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| /// <inheritdoc/> | ||
| public override Task<int> PurgeHistoryByFilters(DateTime createdTimeFrom, DateTime? createdTimeTo, IEnumerable<OrchestrationStatus> runtimeStatus) | ||
| { | ||
| return this.serviceClient.PurgeInstanceHistoryAsync(createdTimeFrom, createdTimeTo, runtimeStatus); | ||
| } | ||
|
|
||
| /// <inheritdoc/> | ||
| public async override Task<OrchestrationStatusQueryResult> GetOrchestrationStateWithPagination(OrchestrationStatusQueryCondition condition, CancellationToken cancellationToken) | ||
| { | ||
| var instanceQuery = new InstanceQuery( | ||
| runtimeStatus: condition.RuntimeStatus?.Select(p => (OrchestrationStatus)Enum.Parse(typeof(OrchestrationStatus), p.ToString())).ToArray(), | ||
| createdTimeFrom: (condition.CreatedTimeFrom == default) ? (DateTime?)null : condition.CreatedTimeFrom.ToUniversalTime(), | ||
| createdTimeTo: (condition.CreatedTimeTo == default) ? (DateTime?)null : condition.CreatedTimeTo.ToUniversalTime(), | ||
| instanceIdPrefix: condition.InstanceIdPrefix, | ||
| fetchInput: condition.ShowInput); | ||
|
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| InstanceQueryResult result = await this.serviceClient.QueryOrchestrationStatesAsync(instanceQuery, condition.PageSize, condition.ContinuationToken, cancellationToken); | ||
|
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| return new OrchestrationStatusQueryResult() | ||
| { | ||
| DurableOrchestrationState = result.Instances.Select(ostate => DurableClient.ConvertOrchestrationStateToStatus(ostate)).ToList(), | ||
| ContinuationToken = result.ContinuationToken, | ||
| }; | ||
| } | ||
| } | ||
| } |
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