blob: 1430b5cb94a20b44cd4bebec6671a7e00057a079 [file] [log] [blame]
// Copyright 2014 The Chromium OS 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 <map>
#include <memory>
#include <string>
#include <base/macros.h>
#include <chromeos/any.h>
#include <chromeos/errors/error.h>
#include "buffet/commands/object_schema.h"
#include "buffet/commands/prop_values.h"
namespace base {
class DictionaryValue;
} // namespace base
namespace buffet {
// A package is a set of related state properties. GCD specification defines
// a number of standard state properties in "base" package such as
// "base.manufacturer", "base.model", "base.firmwareVersion" and so on.
class StatePackage final {
explicit StatePackage(const std::string& name);
// Loads state property definitions from a JSON object and adds them
// to the current package.
bool AddSchemaFromJson(const base::DictionaryValue* json,
chromeos::ErrorPtr* error);
// Loads a set of state property values from a JSON object and assigns them
// to existing properties. A property must be defined prior to loading its
// value. We use this when we load default values during buffet startup.
bool AddValuesFromJson(const base::DictionaryValue* json,
chromeos::ErrorPtr* error);
// Returns a set of state properties and their values as a JSON object.
// After being aggregated across multiple packages, this becomes the device
// state object passed to the GCD server or a local client in the format
// described by GCD specification, e.g.:
// {
// "base": {
// "manufacturer":"...",
// "model":"..."
// },
// "printer": {
// "message": "Printer low on cyan ink"
// }
// }
std::unique_ptr<base::DictionaryValue> GetValuesAsJson(
chromeos::ErrorPtr* error) const;
// Gets the value for a specific state property. |property_name| must not
// include the package name as part of the property name.
chromeos::Any GetPropertyValue(const std::string& property_name,
chromeos::ErrorPtr* error) const;
// Sets the value for a specific state property. |property_name| must not
// include the package name as part of the property name.
bool SetPropertyValue(const std::string& property_name,
const chromeos::Any& value,
chromeos::ErrorPtr* error);
std::shared_ptr<const PropValue>
GetProperty(const std::string& property_name) const {
auto it = values_.find(property_name);
return it != values_.end() ?
it->second : std::shared_ptr<const PropValue>{};
// Returns the name of the this package.
const std::string& GetName() const { return name_; }
std::string name_;
ObjectSchema types_;
native_types::Object values_;
friend class StatePackageTestHelper;
} // namespace buffet