Reading, writing of CDD and CJT JSON formats.

components/cloud_devices/cloud_device_description.cc

+// Copyright 2014 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 "components/cloud_devices/cloud_device_description.h"
+
+#include "base/json/json_reader.h"
+#include "base/json/json_writer.h"
+#include "base/logging.h"
+#include "base/values.h"
+#include "components/cloud_devices/cloud_device_description_consts.h"
+
+namespace cloud_devices {
+
+CloudDeviceDescription::CloudDeviceDescription() {
+  Reset();
+}
+
+CloudDeviceDescription::~CloudDeviceDescription() {
+}
+
+void CloudDeviceDescription::Reset() {
+  root_.reset(new base::DictionaryValue);
+  root_->SetString(json::kVersion, json::kVersion10);
+}
+
+bool CloudDeviceDescription::InitFromString(const std::string& json) {
+  Reset();
+
+  scoped_ptr<base::Value> parsed(base::JSONReader::Read(json));
+  base::DictionaryValue* description = NULL;
+  if (!parsed || !parsed->GetAsDictionary(&description))
+    return false;
+  root_.reset(description);
+  ignore_result(parsed.release());
+
+  std::string version;
+  description->GetString(json::kVersion, &version);
+  return version == json::kVersion10;
+}
+
+std::string CloudDeviceDescription::ToString() const {
+  std::string json;
+  base::JSONWriter::WriteWithOptions(root_.get(),
+                                     base::JSONWriter::OPTIONS_PRETTY_PRINT,
+                                     &json);
+  return json;
+}
+
+const base::DictionaryValue* CloudDeviceDescription::GetItem(
+    const std::string& path) const {
+  const base::DictionaryValue* value = NULL;
+  root_->GetDictionary(path, &value);
+  return value;
+}
+
+base::DictionaryValue* CloudDeviceDescription::CreateItem(
+    const std::string& path) {
+  base::DictionaryValue* value = new base::DictionaryValue;
+  root_->Set(path, value);
+  return value;
+}
+
+const base::ListValue* CloudDeviceDescription::GetListItem(
+    const std::string& path) const {
+  const base::ListValue* value = NULL;
+  root_->GetList(path, &value);
+  return value;
+}
+
+base::ListValue* CloudDeviceDescription::CreateListItem(
+    const std::string& path) {
+  base::ListValue* value = new base::ListValue;
+  root_->Set(path, value);
+  return value;
+}
+
+}  // namespace cloud_devices