1 // SPDX-License-Identifier: Apache-2.0
2 // SPDX-FileCopyrightText: Copyright OpenBMC Authors
3 #include "registries.hpp"
4
5 // We need the registries_selector pulled into some cpp part so that the
6 // registration hooks run.
7 // NOLINTNEXTLINE(misc-include-cleaner)
8 #include "registries_selector.hpp"
9 #include "str_utility.hpp"
10
11 #include <algorithm>
12 #include <cstring>
13 #include <functional>
14 #include <map>
15 #include <optional>
16 #include <ranges>
17 #include <span>
18 #include <string>
19 #include <string_view>
20 #include <vector>
21
22 namespace redfish::registries
23 {
24
allRegistries()25 auto allRegistries() -> std::map<std::string, RegistryEntry>&
26 {
27 static std::map<std::string, RegistryEntry> registries;
28 return registries;
29 }
30
getRegistryFromPrefix(const std::string & registryName)31 auto getRegistryFromPrefix(const std::string& registryName)
32 -> std::optional<RegistryEntryRef>
33 {
34 auto& registries = allRegistries();
35 if (auto it = registries.find(registryName); it != registries.end())
36 {
37 return std::ref(it->second);
38 }
39
40 return std::nullopt;
41 }
42
getRegistryMessagesFromPrefix(const std::string & registryName)43 auto getRegistryMessagesFromPrefix(const std::string& registryName)
44 -> MessageEntries
45 {
46 auto registry = getRegistryFromPrefix(registryName);
47 if (!registry)
48 {
49 return {};
50 }
51
52 return registry->get().entries;
53 }
54
getMessageFromRegistry(const std::string & messageKey,std::span<const MessageEntry> registry)55 const Message* getMessageFromRegistry(const std::string& messageKey,
56 std::span<const MessageEntry> registry)
57 {
58 std::span<const MessageEntry>::iterator messageIt = std::ranges::find_if(
59 registry, [&messageKey](const MessageEntry& messageEntry) {
60 return std::strcmp(messageEntry.first, messageKey.c_str()) == 0;
61 });
62 if (messageIt != registry.end())
63 {
64 return &messageIt->second;
65 }
66
67 return nullptr;
68 }
69
getMessage(std::string_view messageID)70 const Message* getMessage(std::string_view messageID)
71 {
72 // Redfish MessageIds are in the form
73 // RegistryName.MajorVersion.MinorVersion.MessageKey, so parse it to find
74 // the right Message
75 std::vector<std::string> fields;
76 fields.reserve(4);
77 bmcweb::split(fields, messageID, '.');
78 if (fields.size() != 4)
79 {
80 return nullptr;
81 }
82
83 const std::string& registryName = fields[0];
84 const std::string& messageKey = fields[3];
85
86 // Find the right registry and check it for the MessageKey
87 return getMessageFromRegistry(messageKey,
88 getRegistryMessagesFromPrefix(registryName));
89 }
90
91 } // namespace redfish::registries
92