1 /*
2 * Copyright (c) 2021-2022 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 "sys_event_service.h"
17
18 #include <cstdio>
19 #include <memory>
20
21 #include "event.h"
22 #include "hiview_global.h"
23 #include "logger.h"
24 #include "plugin_factory.h"
25 #include "sys_event.h"
26 #include "sys_event_db_mgr.h"
27
28 namespace OHOS {
29 namespace HiviewDFX {
30 REGISTER(SysEventService);
31 DEFINE_LOG_TAG("HiView-SysEventService");
SysEventService()32 SysEventService::SysEventService() : hasLoaded_(false)
33 {
34 sysEventDbMgr_ = std::make_unique<SysEventDbMgr>();
35 sysEventStat_ = std::make_unique<SysEventStat>();
36 }
37
~SysEventService()38 SysEventService::~SysEventService() {}
39
OnLoad()40 void SysEventService::OnLoad()
41 {
42 HIVIEW_LOGI("sys event service load");
43 auto notifyFunc = [&] (std::shared_ptr<Event> event) -> void {
44 SysEventService& servicePlugin = *this;
45 servicePlugin.SendEvent(event);
46 };
47 SysEventServiceAdapter::StartService(this, notifyFunc);
48 sysEventDbMgr_->StartCheckStoreTask(this->workLoop_);
49 std::string yamlFile =
50 HiviewGlobal::GetInstance()->GetHiViewDirectory(HiviewContext::DirectoryType::CONFIG_DIRECTORY);
51 yamlFile = (yamlFile.back() != '/') ? (yamlFile + "/hisysevent.def") : (yamlFile + "hisysevent.def");
52 HIVIEW_LOGI("yamlFile path is %{public}s", yamlFile.c_str());
53 sysEventParser_ = std::make_unique<EventJsonParser>(yamlFile);
54 auto getTagFunc = std::bind(&EventJsonParser::GetTagByDomainAndName, *(sysEventParser_.get()),
55 std::placeholders::_1, std::placeholders::_2);
56 SysEventServiceAdapter::BindGetTagFunc(getTagFunc);
57 auto getTypeFunc = std::bind(&EventJsonParser::GetTypeByDomainAndName, *(sysEventParser_.get()),
58 std::placeholders::_1, std::placeholders::_2);
59 SysEventServiceAdapter::BindGetTypeFunc(getTypeFunc);
60 hasLoaded_ = true;
61 }
62
SendEvent(std::shared_ptr<Event> & event)63 void SysEventService::SendEvent(std::shared_ptr<Event>& event)
64 {
65 GetHiviewContext()->PostUnorderedEvent(shared_from_this(), event);
66 }
67
OnUnload()68 void SysEventService::OnUnload()
69 {
70 HIVIEW_LOGI("sys event service unload");
71 }
72
Convert2SysEvent(std::shared_ptr<Event> & event)73 std::shared_ptr<SysEvent> SysEventService::Convert2SysEvent(std::shared_ptr<Event>& event)
74 {
75 if (event == nullptr) {
76 HIVIEW_LOGE("event is null");
77 return nullptr;
78 }
79 if (event->messageType_ != Event::MessageType::SYS_EVENT) {
80 HIVIEW_LOGE("receive out of sys event type");
81 return nullptr;
82 }
83 HIVIEW_LOGI("domain is %{public}s, eventName is %{public}s.", event->domain_.c_str(), event->eventName_.c_str());
84 std::shared_ptr<SysEvent> sysEvent = Event::DownCastTo<SysEvent>(event);
85 if (sysEvent == nullptr) {
86 HIVIEW_LOGE("sysevent is null");
87 }
88 return sysEvent;
89 }
90
OnEvent(std::shared_ptr<Event> & event)91 bool SysEventService::OnEvent(std::shared_ptr<Event>& event)
92 {
93 if (!hasLoaded_) {
94 HIVIEW_LOGE("SysEventService not ready");
95 return false;
96 }
97 std::shared_ptr<SysEvent> sysEvent = Convert2SysEvent(event);
98 if (sysEvent == nullptr) {
99 sysEventStat_->AccumulateEvent(false);
100 return false;
101 }
102
103 if (!sysEventParser_->HandleEventJson(sysEvent)) {
104 HIVIEW_LOGI("HandleEventJson fail");
105 sysEventStat_->AccumulateEvent(sysEvent->domain_, sysEvent->eventName_, false);
106 return false;
107 } else {
108 sysEventStat_->AccumulateEvent(sysEvent->domain_, sysEvent->eventName_);
109 }
110 SysEventServiceAdapter::OnSysEvent(sysEvent);
111 sysEventDbMgr_->SaveToStore(sysEvent);
112 return true;
113 }
114
ShowUsage(int fd,const std::vector<std::string> & cmds)115 static void ShowUsage(int fd, const std::vector<std::string>& cmds)
116 {
117 dprintf(fd, "invalid cmd:");
118 for (auto it = cmds.begin(); it != cmds.end(); it++) {
119 dprintf(fd, "%s ", it->c_str());
120 }
121 dprintf(fd, "\n");
122 dprintf(fd, "usage: SysEventService [sum|detail|invalid|clear]\n");
123 }
124
Dump(int fd,const std::vector<std::string> & cmds)125 void SysEventService::Dump(int fd, const std::vector<std::string>& cmds)
126 {
127 if (cmds.size() >= 2) { // args from the second item
128 std::string arg1 = cmds[1];
129 if (arg1 == "sum") {
130 sysEventStat_->StatSummary(fd);
131 } else if (arg1 == "detail") {
132 sysEventStat_->StatDetail(fd);
133 } else if (arg1 == "invalid") {
134 sysEventStat_->StatInvalidDetail(fd);
135 } else if (arg1 == "clear") {
136 sysEventStat_->Clear(fd);
137 } else {
138 ShowUsage(fd, cmds);
139 }
140 } else {
141 sysEventStat_->StatSummary(fd);
142 }
143 }
144 } // namespace HiviewDFX
145 } // namespace OHOS
146