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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "base/json/json_string_value_serializer.h"
      6 
      7 #include "base/json/json_reader.h"
      8 #include "base/json/json_writer.h"
      9 #include "base/logging.h"
     10 
     11 using base::Value;
     12 
     13 JSONStringValueSerializer::JSONStringValueSerializer(std::string* json_string)
     14     : json_string_(json_string),
     15       pretty_print_(false) {
     16 }
     17 
     18 JSONStringValueSerializer::~JSONStringValueSerializer() {}
     19 
     20 bool JSONStringValueSerializer::Serialize(const Value& root) {
     21   return SerializeInternal(root, false);
     22 }
     23 
     24 bool JSONStringValueSerializer::SerializeAndOmitBinaryValues(
     25     const Value& root) {
     26   return SerializeInternal(root, true);
     27 }
     28 
     29 bool JSONStringValueSerializer::SerializeInternal(const Value& root,
     30                                                   bool omit_binary_values) {
     31   if (!json_string_)
     32     return false;
     33 
     34   int options = 0;
     35   if (omit_binary_values)
     36     options |= base::JSONWriter::OPTIONS_OMIT_BINARY_VALUES;
     37   if (pretty_print_)
     38     options |= base::JSONWriter::OPTIONS_PRETTY_PRINT;
     39 
     40   return base::JSONWriter::WriteWithOptions(root, options, json_string_);
     41 }
     42 
     43 JSONStringValueDeserializer::JSONStringValueDeserializer(
     44     const base::StringPiece& json_string)
     45     : json_string_(json_string),
     46       allow_trailing_comma_(false) {
     47 }
     48 
     49 JSONStringValueDeserializer::~JSONStringValueDeserializer() {}
     50 
     51 std::unique_ptr<Value> JSONStringValueDeserializer::Deserialize(
     52     int* error_code,
     53     std::string* error_str) {
     54   return base::JSONReader::ReadAndReturnError(
     55       json_string_, allow_trailing_comma_ ? base::JSON_ALLOW_TRAILING_COMMAS
     56                                           : base::JSON_PARSE_RFC,
     57       error_code, error_str);
     58 }
     59