92 lines
3.1 KiB
C#
92 lines
3.1 KiB
C#
// ------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License (MIT). See LICENSE in the repo root for license information.
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// ------------------------------------------------------------
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using System.Collections.Generic;
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using System.Linq;
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using Microsoft.OpenApi.Models;
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using Microsoft.OpenApi.OData.Common;
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using Microsoft.OpenApi.OData.Edm;
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using Microsoft.OpenApi.OData.Generator;
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namespace Microsoft.OpenApi.OData.Operation
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{
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/// <summary>
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/// Retrieve a $count get
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/// </summary>
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internal class DollarCountGetOperationHandler : OperationHandler
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{
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/// <inheritdoc/>
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public override OperationType OperationType => OperationType.Get;
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/// <summary>
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/// Gets/sets the segment before $count.
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/// this segment could be "entity set", "Collection property", "Composable function whose return is collection",etc.
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/// </summary>
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internal ODataSegment LastSecondSegment { get; set; }
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private const int SecondLastSegmentIndex = 2;
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/// <inheritdoc/>
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protected override void Initialize(ODataContext context, ODataPath path)
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{
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base.Initialize(context, path);
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// get the last second segment
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int count = path.Segments.Count;
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if(count >= SecondLastSegmentIndex)
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LastSecondSegment = path.Segments.ElementAt(count - SecondLastSegmentIndex);
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}
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/// <inheritdoc/>
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protected override void SetBasicInfo(OpenApiOperation operation)
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{
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// Summary
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operation.Summary = $"Get the number of the resource";
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// OperationId
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if (Context.Settings.EnableOperationId)
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{
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operation.OperationId = $"Get.Count.{LastSecondSegment.Identifier}";
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}
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base.SetBasicInfo(operation);
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}
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/// <inheritdoc/>
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protected override void SetResponses(OpenApiOperation operation)
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{
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OpenApiSchema schema = new()
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{
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Reference = new() {
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Type = ReferenceType.Schema,
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Id = Constants.DollarCountSchemaName
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}
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};
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operation.Responses = new OpenApiResponses
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{
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{
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Constants.StatusCode200,
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new OpenApiResponse
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{
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Description = "The count of the resource",
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Content = new Dictionary<string, OpenApiMediaType>
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{
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{
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"text/plain",
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new OpenApiMediaType
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{
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Schema = schema
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}
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}
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}
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}
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}
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};
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operation.Responses.Add(Constants.StatusCodeDefault, Constants.StatusCodeDefault.GetResponse());
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base.SetResponses(operation);
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}
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}
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}
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