public static OpenApiDocument CreateFilteredDocument()

in src/Microsoft.OpenApi/Services/OpenApiFilterService.cs [121:177]
49 lines of code
6 McCabe index (conditional complexity)

        public static OpenApiDocument CreateFilteredDocument(OpenApiDocument source, Func<string, OperationType?, OpenApiOperation, bool> predicate)
        {
            // Fetch and copy title, graphVersion and server info from OpenApiDoc
            var subset = new OpenApiDocument
            {
                Info = new OpenApiInfo
                {
                    Title = source.Info.Title + " - Subset",
                    Description = source.Info.Description,
                    TermsOfService = source.Info.TermsOfService,
                    Contact = source.Info.Contact,
                    License = source.Info.License,
                    Version = source.Info.Version,
                    Extensions = source.Info.Extensions
                },

                Components = new OpenApiComponents {SecuritySchemes = source.Components.SecuritySchemes},
                SecurityRequirements = source.SecurityRequirements,
                Servers = source.Servers
            };

            var results = FindOperations(source, predicate);
            foreach (var result in results)
            {
                OpenApiPathItem pathItem;
                var pathKey = result.CurrentKeys.Path;

                if (subset.Paths == null)
                {
                    subset.Paths = new OpenApiPaths();
                    pathItem = new OpenApiPathItem();
                    subset.Paths.Add(pathKey, pathItem);
                }
                else
                {
                    if (!subset.Paths.TryGetValue(pathKey, out pathItem))
                    {
                        pathItem = new OpenApiPathItem();
                        subset.Paths.Add(pathKey, pathItem);
                    }
                }

                if (result.CurrentKeys.Operation != null)
                {
                    pathItem.Operations.Add((OperationType)result.CurrentKeys.Operation, result.Operation);
                }
            }

            if (subset.Paths == null)
            {
                throw new ArgumentException("No paths found for the supplied parameters.");
            }

            CopyReferences(subset);

            return subset;
        }