Method versionFileFromJson

launcher/minecraft/OneSixVersionFormat.cpp:77–313

}

VersionFilePtr OneSixVersionFormat::versionFileFromJson(const QJsonDocument &doc, const QString &filename, const bool requireOrder)
{
    VersionFilePtr out(new VersionFile());
    if (doc.isEmpty() || doc.isNull())
    {
        throw JSONValidationError(filename + " is empty or null");
    }
    if (!doc.isObject())
    {
        throw JSONValidationError(filename + " is not an object");
    }

    QJsonObject root = doc.object();

    Meta::MetadataVersion formatVersion = Meta::parseFormatVersion(root, false);
    switch(formatVersion)
    {
        case Meta::MetadataVersion::InitialRelease:
            break;
        case Meta::MetadataVersion::Invalid:
            throw JSONValidationError(filename + " does not contain a recognizable version of the metadata format.");
    }

    if (requireOrder)
    {
        if (root.contains("order"))
        {
            out->order = requireInteger(root.value("order"));
        }
        else
        {
            // FIXME: evaluate if we don't want to throw exceptions here instead
            qCritical() << filename << "doesn't contain an order field";
        }
    }

    out->name = root.value("name").toString();

    if(root.contains("uid"))
    {
        out->uid = root.value("uid").toString();
    }
    else
    {
        out->uid = root.value("fileId").toString();
    }

    out->version = root.value("version").toString();

    MojangVersionFormat::readVersionProperties(root, out.get());

    // added for legacy Minecraft window embedding, TODO: remove
    readString(root, "appletClass", out->appletClass);

    if (root.contains("+tweakers"))
    {
        for (auto tweakerVal : requireArray(root.value("+tweakers")))
        {