| #region License |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| #endregion |
| |
| using System; |
| using System.Collections; |
| using System.Collections.Generic; |
| |
| namespace Gremlin.Net.Structure.IO.GraphSON |
| { |
| /// <summary> |
| /// Provides helper methods for GraphSON serialization. |
| /// </summary> |
| public static class GraphSONUtil |
| { |
| /// <summary> |
| /// Transforms a value intos its GraphSON representation including type information. |
| /// </summary> |
| /// <param name="typename">The name of the type.</param> |
| /// <param name="value">The value to transform.</param> |
| /// <param name="prefix">A namespace prefix for the typename.</param> |
| /// <returns>The GraphSON representation including type information.</returns> |
| public static Dictionary<string, dynamic> ToTypedValue(string typename, dynamic value, string prefix = "g") |
| { |
| var typedValue = new Dictionary<string, dynamic> |
| { |
| {GraphSONTokens.TypeKey, FormatTypeName(prefix, typename)} |
| }; |
| if (value != null) |
| typedValue[GraphSONTokens.ValueKey] = value; |
| return typedValue; |
| } |
| |
| /// <summary> |
| /// Formats a type name with its prefix to a GraphSON TypeID. |
| /// </summary> |
| /// <param name="namespacePrefix">The namespace prefix (default is "g").</param> |
| /// <param name="typeName">The name of the type.</param> |
| /// <returns>The formatted TypeID.</returns> |
| public static string FormatTypeName(string namespacePrefix, string typeName) |
| { |
| return $"{namespacePrefix}:{typeName}"; |
| } |
| |
| /// <summary> |
| /// Converts a Collection to a representation of g:List or g:Set |
| /// </summary> |
| internal static Dictionary<string, dynamic> ToCollection(dynamic objectData, GraphSONWriter writer, |
| string typename) |
| { |
| var collection = objectData as IEnumerable; |
| if (collection == null) |
| { |
| throw new InvalidOperationException("Object must implement IEnumerable"); |
| } |
| var result = new List<object>(); |
| foreach (var item in collection) |
| { |
| result.Add(writer.ToDict(item)); |
| } |
| return ToTypedValue(typename, result); |
| } |
| } |
| } |