// Copyright (c) 2015, Emir Pasic. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. package btree import ( "encoding/json" "github.com/emirpasic/gods/containers" "github.com/emirpasic/gods/utils" ) // Assert Serialization implementation var _ containers.JSONSerializer = (*Tree)(nil) var _ containers.JSONDeserializer = (*Tree)(nil) // ToJSON outputs the JSON representation of the tree. func (tree *Tree) ToJSON() ([]byte, error) { elements := make(map[string]interface{}) it := tree.Iterator() for it.Next() { elements[utils.ToString(it.Key())] = it.Value() } return json.Marshal(&elements) } // FromJSON populates the tree from the input JSON representation. func (tree *Tree) FromJSON(data []byte) error { elements := make(map[string]interface{}) err := json.Unmarshal(data, &elements) if err == nil { tree.Clear() for key, value := range elements { tree.Put(key, value) } } return err } // UnmarshalJSON @implements json.Unmarshaler func (tree *Tree) UnmarshalJSON(bytes []byte) error { return tree.FromJSON(bytes) } // MarshalJSON @implements json.Marshaler func (tree *Tree) MarshalJSON() ([]byte, error) { return tree.ToJSON() }