public PluginBase Build(RepositorySettings settings)
{
_metadataList = _pluginLoader.LoadPlugins(_pluginRepository, _pluginTypes);
var metadata = (from m in _metadataList
where m.PluginId == settings.PluginId
select m).SingleOrDefault();
if (metadata == null)
{
return(new EmptyPlugin());
}
else if (_pluginTypes.ContainsKey(metadata.Dll))
{
var type = _pluginTypes[metadata.Dll];
var plugin = Activator.CreateInstance(type);
var p = plugin as PluginBase;
p?.Initialise(settings, _logger);
return(p);
}
else
{
throw new NotSupportedException($"Cannot instanciate the plugin '{metadata.Dll}'. Did you forget to load the plugins?");
}
}
public IPlugin Build(string name)
{
_metadataList = _pluginLoader.LoadPlugins(PluginRepository, _pluginTypes);
name = name.ToLower();
var metadata = GetMetadataList(name).FirstOrDefault();
if (metadata == null)
{
var p = new EmptyPlugin();
p.Initialise(_pluginContext);
return(p);
}
else if (_pluginTypes.ContainsKey(metadata.Dll))
{
var type = _pluginTypes[metadata.Dll];
var plugin = Activator.CreateInstance(type);
var p = plugin as PluginBase;
p?.Initialise(_pluginContext);
return(p);
}
else
{
throw new NotSupportedException($"Cannot instanciate the plugin '{metadata.Dll}'. Did you forget to load the plugins?");
}
}
/// <summary>
/// Find a plugin by name. The plugin must implement a Name property.
/// public string Name { get; set; }
/// The Dependency resolver is only loaded for the found plugin.
/// </summary>
/// <param name="pluginName">The plugin name</param>
/// <param name="dir">The directory to search</param>
/// <returns>A found plugin of type T.</returns>
public T FindPlugin(string pluginName, string dir, IPluginObjectCreator <T> pluginObjectCreator = null)
{
if (string.IsNullOrWhiteSpace(pluginName))
{
return(default(T));
}
if (string.IsNullOrWhiteSpace(dir))
{
return(default(T));
}
_Logger?.WriteLine(PluginLoaderLogLevel.Info, $"Attempting to find plugin: {pluginName}; from path: {dir}");
var plugins = _PluginLoader.LoadPlugins(Directory.GetFiles(dir, DllExtension));
if (plugins == null || !plugins.Any())
{
return(default(T));
}
pluginObjectCreator = pluginObjectCreator ?? _PluginObjectCreator;
foreach (var plugin in plugins)
{
// Find by attribute (New preferred method)
foreach (var type in plugin.PluginTypes)
{
var pluginAttribute = type.GetCustomAttribute <PluginAttribute>();
if (pluginAttribute != null && pluginName.Equals(pluginAttribute.Name, StringComparison.InvariantCultureIgnoreCase))
{
return(plugin.CreatePluginObject(type, pluginObjectCreator));
}
}
// Find by a Named property on instance of class (legacy way)
var pluginObjects = plugin.CreatePluginObjects(pluginObjectCreator);
if (pluginObjects == null)
{
continue;
}
foreach (var obj in pluginObjects)
{
dynamic namedObj = obj;
if (namedObj != null)
{
if (namedObj.Name.Equals(pluginName, StringComparison.InvariantCultureIgnoreCase))
{
return(obj);
}
}
}
}
return(default(T));
}
