using NJsonSchema.Infrastructure; using System; using System.Collections; using System.Collections.Generic; using System.Linq; using System.Reflection; namespace NJsonSchema { public static class JsonPathUtilities { public static string GetJsonPath(object root, object objectToSearch, ISchemaDefinitionAppender schemaDefinitionAppender = null) { string jsonPath = GetJsonPath(root, objectToSearch, "#", new HashSet<object>()); if (jsonPath == null) { if (schemaDefinitionAppender != null && objectToSearch is JsonSchema4) { schemaDefinitionAppender.Append(root, (JsonSchema4)objectToSearch); return GetJsonPath(root, objectToSearch, schemaDefinitionAppender); } throw new InvalidOperationException("Could not find the JSON path of a child object."); } return jsonPath; } public static JsonSchema4 GetObjectFromJsonPath(object root, string path) { if (path == "#") { if (root is JsonSchema4) return (JsonSchema4)root; throw new InvalidOperationException("Could not resolve the path '#' because the root object is not a JsonSchema4."); } if (path.StartsWith("#/")) { JsonSchema4 objectFromJsonPath = GetObjectFromJsonPath(root, path.Split(new char[1] { '/' }).Skip(1).ToList(), new HashSet<object>()); if (objectFromJsonPath == null) throw new InvalidOperationException("Could not resolve the path '" + path + "'."); return objectFromJsonPath; } if (path.StartsWith("http://") || path.StartsWith("https://")) { if (FullDotNetMethods.SupportsFullDotNetMethods) return JsonSchema4.FromJson(FullDotNetMethods.HttpGet(path), null); throw new NotSupportedException("Could not resolve the path '" + path + "' because JSON web references are not supported on this platform."); } if (FullDotNetMethods.SupportsFullDotNetMethods) { JsonSchema4 jsonSchema = root as JsonSchema4; if (jsonSchema != null && jsonSchema.RootDirectory != null) return JsonSchema4.FromJson(FullDotNetMethods.FileReadAllText(FullDotNetMethods.PathCombine(jsonSchema.RootDirectory, path)), null); throw new NotSupportedException("Could not resolve the path '" + path + "' because no root path is available."); } throw new NotSupportedException("Could not resolve the path '" + path + "' because JSON file references are not supported on this platform."); } public static string GetPropertyName(PropertyInfo property) { return ReflectionCache.GetProperties(property.DeclaringType).First((ReflectionCache.Property p) => (object)p.PropertyInfo == property).GetName(); } private static string GetJsonPath(object obj, object objectToSearch, string basePath, HashSet<object> checkedObjects) { if (obj == null || obj is string || checkedObjects.Contains(obj)) return null; if (obj == objectToSearch) return basePath; checkedObjects.Add(obj); if (obj is IDictionary) { foreach (object key in ((IDictionary)obj).Keys) { string jsonPath = GetJsonPath(((IDictionary)obj)[key], objectToSearch, basePath + "/" + key, checkedObjects); if (jsonPath != null) return jsonPath; } } else if (obj is IEnumerable) { int num = 0; foreach (object item in (IEnumerable)obj) { string jsonPath2 = GetJsonPath(item, objectToSearch, basePath + "/" + num, checkedObjects); if (jsonPath2 != null) return jsonPath2; num++; } } else { foreach (ReflectionCache.Property item2 in from p in ReflectionCache.GetProperties(obj.GetType()) where p.CustomAttributes.JsonIgnoreAttribute == null select p) { object value = item2.PropertyInfo.GetValue(obj); if (value != null) { string name = item2.GetName(); string jsonPath3 = GetJsonPath(value, objectToSearch, basePath + "/" + name, checkedObjects); if (jsonPath3 != null) return jsonPath3; } } } return null; } private static JsonSchema4 GetObjectFromJsonPath(object obj, List<string> segments, HashSet<object> checkedObjects) { if (obj == null || obj is string || checkedObjects.Contains(obj)) return null; if (segments.Count == 0) return (JsonSchema4)obj; checkedObjects.Add(obj); string text = segments[0]; if (obj is IDictionary) { if (((IDictionary)obj).Contains(text)) return GetObjectFromJsonPath(((IDictionary)obj)[text], segments.Skip(1).ToList(), checkedObjects); } else if (obj is IEnumerable) { if (int.TryParse(text, out int result)) { object[] array = ((IEnumerable)obj).Cast<object>().ToArray(); if (array.Length > result) return GetObjectFromJsonPath(array[result], segments.Skip(1).ToList(), checkedObjects); } } else { foreach (ReflectionCache.Property item in from p in ReflectionCache.GetProperties(obj.GetType()) where p.CustomAttributes.JsonIgnoreAttribute == null select p) { if (item.GetName() == text) return GetObjectFromJsonPath(item.PropertyInfo.GetValue(obj), segments.Skip(1).ToList(), checkedObjects); } } return null; } } }