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// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/common/json_value_serializer.h"
#include "base/json_reader.h"
#include "base/json_writer.h"
#include "base/string_util.h"
#include "chrome/common/logging_chrome.h"
JSONStringValueSerializer::~JSONStringValueSerializer() {}
bool JSONStringValueSerializer::Serialize(const Value& root) {
if (!json_string_ || initialized_with_const_string_)
return false;
JSONWriter::Write(&root, pretty_print_, json_string_);
return true;
}
bool JSONStringValueSerializer::Deserialize(Value** root) {
if (!json_string_)
return false;
return JSONReader::Read(*json_string_, root, allow_trailing_comma_);
}
/******* File Serializer *******/
bool JSONFileValueSerializer::Serialize(const Value& root) {
std::string json_string;
JSONStringValueSerializer serializer(&json_string);
serializer.set_pretty_print(true);
bool result = serializer.Serialize(root);
if (!result)
return false;
FILE* file = NULL;
_wfopen_s(&file, json_file_path_.c_str(), L"wb");
if (!file)
return false;
size_t amount_written =
fwrite(json_string.data(), 1, json_string.size(), file);
fclose(file);
return amount_written == json_string.size();
}
bool JSONFileValueSerializer::Deserialize(Value** root) {
FILE* file = NULL;
_wfopen_s(&file, json_file_path_.c_str(), L"rb");
if (!file)
return false;
fseek(file, 0, SEEK_END);
size_t file_size = ftell(file);
rewind(file);
bool result = false;
std::string json_string;
size_t chars_read = fread(
// WriteInto assumes the last character is a null, and it's not in this
// case, so we need to add 1 to our size to ensure the last character
// doesn't get cut off.
WriteInto(&json_string, file_size + 1), 1, file_size, file);
if (chars_read == file_size) {
JSONStringValueSerializer serializer(json_string);
result = serializer.Deserialize(root);
}
fclose(file);
return result;
}
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