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 #include "publisher_item.h"
17
18 #include "constants.h"
19 #include "dh_utils_tool.h"
20 #include "distributed_hardware_log.h"
21
22 namespace OHOS {
23 namespace DistributedHardware {
PublisherItem()24 PublisherItem::PublisherItem() : topic_(DHTopic::TOPIC_MIN)
25 {
26 }
27
PublisherItem(DHTopic topic)28 PublisherItem::PublisherItem(DHTopic topic) : topic_(topic)
29 {
30 DHLOGE("Ctor PublisherItem, topic: %{public}d", topic);
31 }
32
~PublisherItem()33 PublisherItem::~PublisherItem()
34 {
35 DHLOGE("Dtor PublisherItem, topic: %{public}d", topic_);
36 std::lock_guard<std::mutex> lock(mutex_);
37 listeners_.clear();
38 }
39
AddListener(const sptr<IPublisherListener> listener)40 void PublisherItem::AddListener(const sptr<IPublisherListener> listener)
41 {
42 if (listener == nullptr) {
43 DHLOGE("Add null publisher listener");
44 return;
45 }
46
47 std::lock_guard<std::mutex> lock(mutex_);
48 listeners_.insert(listener);
49 }
50
RemoveListener(const sptr<IPublisherListener> listener)51 void PublisherItem::RemoveListener(const sptr<IPublisherListener> listener)
52 {
53 if (listener == nullptr) {
54 DHLOGE("Remove null publisher listener");
55 return;
56 }
57
58 std::lock_guard<std::mutex> lock(mutex_);
59 for (const auto &lis : listeners_) {
60 if (lis->AsObject().GetRefPtr() == listener->AsObject().GetRefPtr()) {
61 listeners_.erase(lis);
62 break;
63 }
64 }
65 }
66
PublishMessage(const std::string & message)67 void PublisherItem::PublishMessage(const std::string &message)
68 {
69 if (!IsMessageLengthValid(message)) {
70 return;
71 }
72 std::lock_guard<std::mutex> lock(mutex_);
73 for (const auto &listener : listeners_) {
74 listener->OnMessage(topic_, message);
75 }
76 }
77 } // DistributedHardware
78 } // OHOS