public static DataModel CreateFromArgs(string queryModelArg, NameValueCollection parameters)
{
log.DebugFormat("loading model extension for {0}", queryModelArg);
IOpenSearchClientDataModelExtension modelExtension = DataModel.FindPluginByName(queryModelArg);
if (modelExtension == null)
{
throw new NotSupportedException(string.Format("No data model with name \"{0}\" found", queryModelArg));
}
modelExtension.InitModelExtension(parameters);
return(new DataModel(modelExtension));
}
public static IOpenSearchClientDataModelExtension FindPluginByName(string name)
{
List <Assembly> allAssemblies = new List <Assembly>();
string dirpath = Path.GetDirectoryName((new System.Uri(Assembly.GetExecutingAssembly().CodeBase)).AbsolutePath);
log.Debug(string.Format("Scan {0} for OpenSearch Client plugins", dirpath));
foreach (string dll in Directory.GetFiles(dirpath, "*.dll"))
{
allAssemblies.Add(Assembly.LoadFile(dll));
}
foreach (var assembly in allAssemblies)
{
foreach (var cl in assembly.GetTypes())
{
var dnAttributes = cl.GetCustomAttributes(typeof(OpenSearchClientExtensionAttribute), true);
foreach (OpenSearchClientExtensionAttribute dnAttribute in dnAttributes)
{
log.Debug(String.Format("Found {0} [{1}] in class {2}", dnAttribute.NodeName, dnAttribute.Description, cl.Name));
try
{
IOpenSearchClientDataModelExtension modelExtension = (IOpenSearchClientDataModelExtension)Activator.CreateInstance(cl);
if (modelExtension.Name == name)
{
return(modelExtension);
}
}
catch (Exception e)
{
log.Warn(string.Format("Impossible to load {0} : {1}. Skipping extension", cl.FullName, e.Message));
}
}
}
}
return(null);
}
private DataModel(IOpenSearchClientDataModelExtension modelExtension)
{
this.modelExtension = modelExtension;
}
private DataModel(IOpenSearchClientDataModelExtension modelExtension)
{
this.modelExtension = modelExtension;
}
