WIP

dotnet/samples/AzureFunctions/10_WorkflowConcurrent/ConcurrentStartExecutor.cs

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+// Copyright (c) Microsoft. All rights reserved.
+
+using Microsoft.Agents.AI.Workflows;
+
+namespace SingleAgent;
+
+internal sealed class ConcurrentStartExecutor() : Executor<string, string>("ConcurrentStartExecutor")
+{
+    public override ValueTask<string> HandleAsync(string message, IWorkflowContext context, CancellationToken cancellationToken = default)
+    {
+        // do some initial parsing and validation of the message.
+        // Return a polished version ith additional metadta.
+        if (!message.StartsWith("Query for the agent:", StringComparison.OrdinalIgnoreCase))
+        {
+            message = "Query for the agent: " + message;
+        }
+
+        return ValueTask.FromResult(message);
+    }
+}
+
+internal sealed class ConcurrentAggregationExecutor() : Executor<string[], string>("ConcurrentAggregationExecutor")
+{
+    /// <summary>
+    /// Handles incoming messages from the agents and aggregates their responses.
+    /// </summary>
+    /// <param name="message">The messages from the parallel agents.</param>
+    /// <param name="context">Workflow context for accessing workflow services and adding events.</param>
+    /// <param name="cancellationToken">The <see cref="CancellationToken"/> to monitor for cancellation requests.
+    /// The default is <see cref="CancellationToken.None"/>.</param>
+    /// <returns>A task representing the asynchronous operation.</returns>
+    public override ValueTask<string> HandleAsync(string[] message, IWorkflowContext context, CancellationToken cancellationToken = default)
+    {
+        // Aggregate all responses from parallel executors
+        string aggregatedResponse = string.Join("\n---\n", message);
+        return ValueTask.FromResult($"Aggregated {message.Length} responses:\n{aggregatedResponse}");
+    }
+}