##// END OF EJS Templates
AMDA parser (1)...
Alexandre Leroux -
r355:daf05f2cd2ea
parent child
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@@ -2,10 +2,62
2 2
3 3 #include <DataSource/DataSourceItem.h>
4 4
5 #include <QFile>
6 #include <QJsonDocument>
7 #include <QJsonObject>
8
5 9 Q_LOGGING_CATEGORY(LOG_AmdaParser, "AmdaParser")
6 10
11 namespace {
12
13 // Significant keys of an AMDA's JSON file
14 const auto ROOT_KEY = QStringLiteral("dataCenter");
15
16 } // namespace
17
7 18 std::unique_ptr<DataSourceItem> AmdaParser::readJson(const QString &filePath) noexcept
8 19 {
20 QFile jsonFile{filePath};
21
22 if (!jsonFile.open(QIODevice::ReadOnly | QIODevice::Text)) {
23 qCCritical(LOG_AmdaParser())
24 << QObject::tr("Can't retrieve data source tree from file %1: %2")
25 .arg(filePath, jsonFile.errorString());
26 return nullptr;
27 }
28
29 auto json = jsonFile.readAll();
30 auto jsonDocument = QJsonDocument::fromJson(json);
31
32 // Check preconditions for parsing
33 if (!jsonDocument.isObject()) {
34 qCCritical(LOG_AmdaParser())
35 << QObject::tr(
36 "Can't retrieve data source tree from file %1: the file is malformed (there is "
37 "not one and only one root object)")
38 .arg(filePath);
39 return nullptr;
40 }
41
42 auto jsonDocumentObject = jsonDocument.object();
43 if (!jsonDocumentObject.contains(ROOT_KEY)) {
44 qCCritical(LOG_AmdaParser())
45 << QObject::tr(
46 "Can't retrieve data source tree from file %1: the file is malformed (the key "
47 "for the root element was not found (%2))")
48 .arg(filePath, ROOT_KEY);
49 return nullptr;
50 }
51
52 auto rootValue = jsonDocumentObject.value(ROOT_KEY);
53 if (!rootValue.isObject()) {
54 qCCritical(LOG_AmdaParser())
55 << QObject::tr(
56 "Can't retrieve data source tree from file %1: the file is malformed (the root "
57 "element is of the wrong type)")
58 .arg(filePath);
59 return nullptr;
60 }
9 61 /// @todo ALX
10 62 return nullptr;
11 63 }
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