1 /*
2  * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef OHOS_PUBLISHER_H
17 #define OHOS_PUBLISHER_H
18 
19 #include <unordered_map>
20 #include <memory>
21 
22 #include "ipublisher_listener.h"
23 #include "publisher_item.h"
24 
25 namespace OHOS {
26 namespace DistributedHardware {
27 class Publisher {
28 DECLARE_SINGLE_INSTANCE_BASE(Publisher);
29 public:
30     virtual ~Publisher();
31     void RegisterListener(const DHTopic topic, const sptr<IPublisherListener> listener);
32     void UnregisterListener(const DHTopic topic, const sptr<IPublisherListener> listener);
33     void PublishMessage(const DHTopic topic, const std::string &message);
34 private:
35     Publisher();
36     std::unordered_map<DHTopic, std::shared_ptr<PublisherItem>> publisherItems_;
37 };
38 } // namespace DistributedHardware
39 } // namespace OHOS
40 #endif // OHOS_PUBLISHER_H