Exemplo n.º 1
0
        public static IEnumerable <JsonNode> GetNodes(this JsonNode self,
                                                      JsonPointer jsonPointer)
        {
            if (jsonPointer.Path.Count == 0)
            {
                yield return(self);

                yield break;
            }

            if (self.IsArray())
            {
                // array
                if (jsonPointer[0][0] == '*')
                {
                    // wildcard
                    foreach (var child in self.ArrayItems())
                    {
                        foreach (var childChild in child.GetNodes(jsonPointer.Unshift()))
                        {
                            yield return(childChild);
                        }
                    }
                }
                else
                {
                    int index = jsonPointer[0].ToInt32();
                    var child = self.ArrayItems().Skip(index).First();
                    foreach (var childChild in child.GetNodes(jsonPointer.Unshift()))
                    {
                        yield return(childChild);
                    }
                }
            }
            else if (self.IsMap())
            {
                // object
                if (jsonPointer[0][0] == '*')
                {
                    // wildcard
                    foreach (var kv in self.ObjectItems())
                    {
                        foreach (var childChild in kv.Value.GetNodes(jsonPointer.Unshift()))
                        {
                            yield return(childChild);
                        }
                    }
                }
                else
                {
                    JsonNode child;
                    try
                    {
                        child = self.ObjectItems().First(x => x.Key.GetUtf8String() == jsonPointer[0]).Value;
                    }
                    catch (Exception)
                    {
                        // key
                        self.AddKey(jsonPointer[0]);
                        // value
                        self.AddValue(default(ArraySegment <byte>), ValueNodeType.Object);

                        child = self.ObjectItems().First(x => x.Key.GetUtf8String() == jsonPointer[0]).Value;
                    }
                    foreach (var childChild in child.GetNodes(jsonPointer.Unshift()))
                    {
                        yield return(childChild);
                    }
                }
            }
            else
            {
                throw new NotImplementedException();
            }
        }