1 /**
2  * Copyright © 2020 IBM Corporation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #include "event.hpp"
17 
18 #include <nlohmann/json.hpp>
19 #include <phosphor-logging/log.hpp>
20 #include <sdbusplus/bus.hpp>
21 
22 namespace phosphor::fan::control::json
23 {
24 
25 using json = nlohmann::json;
26 using namespace phosphor::logging;
27 
28 Event::Event(sdbusplus::bus::bus& bus, const json& jsonObj) :
29     ConfigBase(jsonObj)
30 {
31     if (jsonObj.contains("profiles"))
32     {
33         for (const auto& profile : jsonObj["profiles"])
34         {
35             _profiles.emplace_back(profile.get<std::string>());
36         }
37     }
38 
39     // Event could have a precondition
40     if (!jsonObj.contains("precondition"))
41     {
42         // Event groups are optional
43         if (jsonObj.contains("groups"))
44         {
45             setGroups(jsonObj);
46         }
47         setTriggers(jsonObj);
48         // Event actions are optional
49         if (jsonObj.contains("actions"))
50         {
51             setActions(jsonObj);
52         }
53     }
54     else
55     {
56         setPrecond(jsonObj);
57     }
58 }
59 
60 void Event::setPrecond(const json& jsonObj)
61 {
62     const auto& precond = jsonObj["precondition"];
63     if (!precond.contains("name") || !precond.contains("groups") ||
64         !precond.contains("triggers") || !precond.contains("events"))
65     {
66         log<level::ERR>("Missing required event precondition attributes",
67                         entry("JSON=%s", precond.dump().c_str()));
68         throw std::runtime_error(
69             "Missing required event precondition attributes");
70     }
71     setGroups(precond);
72     setTriggers(precond);
73 }
74 
75 void Event::setGroups(const json& jsonObj)
76 {
77     for (const auto& group : jsonObj["groups"])
78     {
79         if (!group.contains("name") || !group.contains("interface") ||
80             !group.contains("property"))
81         {
82             log<level::ERR>("Missing required event group attributes",
83                             entry("JSON=%s", group.dump().c_str()));
84             throw std::runtime_error("Missing required event group attributes");
85         }
86     }
87 }
88 
89 void Event::setTriggers(const json& jsonObj)
90 {
91     if (!jsonObj.contains("triggers"))
92     {
93         log<level::ERR>("Missing required event triggers list",
94                         entry("JSON=%s", jsonObj.dump().c_str()));
95         throw std::runtime_error("Missing required event triggers list");
96     }
97 }
98 
99 void Event::setActions(const json& jsonObj)
100 {
101     for (const auto& action : jsonObj["actions"])
102     {
103         if (!action.contains("name"))
104         {
105             log<level::ERR>("Missing required event action name",
106                             entry("JSON=%s", action.dump().c_str()));
107             throw std::runtime_error("Missing required event action name");
108         }
109     }
110 }
111 
112 } // namespace phosphor::fan::control::json
113