public static IAssetManagerApi CreateApiFromSettings(AssetManagerSettings settings)
{
settings.Validate();
IList <IDatabaseConfig> dbConfigs = LoadDataBase(settings);
return(new AssetManagerApi(dbConfigs));
}
// ---------------- Functions ----------------
/// <summary>
/// Loads the given XML file and overwrites the given settings
/// config with the settings specified in the XML file.
/// </summary>
public static void LoadFromXml(this AssetManagerSettings settings, string xmlFilePath)
{
XmlDocument doc = new XmlDocument();
doc.Load(xmlFilePath);
LoadFromXml(settings, doc);
}
public static IAssetManagerApi CreateApiFromConfig(string configDirectory)
{
AssetManagerSettings settings = new AssetManagerSettings
{
AssetManagerSettingsDirectory = configDirectory
};
settings.LoadFromXml(Path.Combine(configDirectory, ConfigFileName));
return(CreateApiFromSettings(settings));
}
private static IList <IDatabaseConfig> LoadDataBase(AssetManagerSettings settings)
{
// Load the assembly that contains the database information.
Assembly assembly = Assembly.LoadFrom(settings.DatabaseAssemblyPath);
DatabaseConfigLoaderAttribute attr = assembly.GetCustomAttribute <DatabaseConfigLoaderAttribute>();
if (attr == null)
{
throw new InvalidOperationException(
"Loaded assembly " + settings.DatabaseAssemblyPath + " does not define " + nameof(DatabaseConfigLoaderAttribute)
);
}
object dbLoader = Activator.CreateInstance(attr.DatabaseConfigLoaderType);
IDatabaseConfigLoader loader = dbLoader as IDatabaseConfigLoader;
if (loader == null)
{
throw new InvalidOperationException(
"Class tagged as " + nameof(DatabaseConfigLoaderAttribute) + " does not implement " + nameof(IDatabaseConfigLoader)
);
}
IList <IDatabaseConfig> databaseConfigs = loader.Load(settings);
foreach (IDatabaseConfig databaseConfig in databaseConfigs)
{
databaseConfig.Validate();
}
foreach (IDatabaseConfig databaseConfig in databaseConfigs)
{
IEnumerable <Guid> ids = databaseConfigs.Select(d => d.DatabaseId).Where(d => d.Equals(databaseConfig.DatabaseId));
if (ids.Count() != 1)
{
throw new ValidationException("More than one database has ID " + databaseConfig.DatabaseId);
}
}
return(databaseConfigs);
}
/// <summary>
/// Overwrites the given settings
/// config with the settings specified in the passed in XML document.
/// </summary>
public static void LoadFromXml(this AssetManagerSettings settings, XmlDocument doc)
{
XmlNode rootNode = doc.DocumentElement;
if (rootNode.Name != SettingsXmlElementName)
{
throw new XmlException(
"Root XML node should be named \"" + SettingsXmlElementName + "\". Got: " + rootNode.Name
);
}
foreach (XmlNode childNode in rootNode.ChildNodes)
{
switch (childNode.Name.ToLower())
{
case "databaseassembly":
settings.DatabaseAssemblyPath = childNode.InnerText;
break;
}
}
}
