/*
 * Copyright (c) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef OHOS_AAFWK_CONFIGURATION_DISTRIBUTOR_H
#define OHOS_AAFWK_CONFIGURATION_DISTRIBUTOR_H

#include <mutex>
#include <list>
#include "configuration_holder.h"
#include "configuration.h"
#include "nocopyable.h"

namespace OHOS {
namespace AAFwk {
class ConfigurationDistributor final : public NoCopyable {
public:
    ConfigurationDistributor();
    ~ConfigurationDistributor();
    void Atach(const std::weak_ptr<ConfigurationHolder> &ob);
    void Detach(const std::weak_ptr<ConfigurationHolder> &ob);
    void UpdateConfiguration(const AppExecFwk::Configuration &newConfig);
    void InitConfiguration(const AppExecFwk::Configuration &);
private:
    std::list<std::weak_ptr<ConfigurationHolder>> observerList_;
    std::mutex configLock_;
    AppExecFwk::Configuration config_;
};
}  // namespace AAFwk
}  // namespace OHOS
#endif  // OHOS_AAFWK_CONFIGURATION_DISTRIBUTOR_H