base/json/json_string_value_serializer.cc

   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 Value* JSONStringValueDeserializer::Deserialize(int* error_code,
  52                                                 std::string* error_str) {
  53   return base::JSONReader::ReadAndReturnError(json_string_,
  54       allow_trailing_comma_ ? base::JSON_ALLOW_TRAILING_COMMAS :
  55           base::JSON_PARSE_RFC,
  56       error_code, error_str);
  57 }