/// <summary>
/// Get plugin descriptors
/// </summary>
/// <param name="loadMode">Load plugins mode</param>
/// <param name="group">Filter by plugin group; pass null to load all records</param>
/// <returns>Plugin descriptors</returns>
public virtual IEnumerable <PluginDescriptor> GetPluginDescriptors(PluginsType loadMode = PluginsType.InstalledOnly, string group = null)
{
//ensure plugins are loaded
EnsurePluginsAreLoaded();
return(_plugins.Where(p => CheckLoadMode(p, loadMode) && CheckGroup(p, group)));
}
public Plugins(string na, string des, MethodInfo p_mi, PluginsType p_pt)
{
name = na;
description = des;
mi = p_mi;
pt = p_pt;
}
/// <summary>
/// Check whether the plugin is available
/// </summary>
/// <param name="pluginDescriptor">Plugin descriptor to check</param>
/// <param name="loadMode">Load plugins mode</param>
/// <returns>true - available; false - no</returns>
protected virtual bool CheckLoadMode(PluginDescriptor pluginDescriptor, PluginsType loadMode)
{
if (pluginDescriptor == null)
{
throw new ArgumentNullException("pluginDescriptor");
}
switch (loadMode)
{
case PluginsType.All:
//no filering
return(true);
case PluginsType.InstalledOnly:
return(pluginDescriptor.Installed);
case PluginsType.NotInstalledOnly:
return(!pluginDescriptor.Installed);
default:
throw new Exception("Not supported LoadPluginsMode");
}
}
/// <summary>
/// Get a plugin descriptor by its system name
/// </summary>
/// <typeparam name="T">The type of plugin to get.</typeparam>
/// <param name="systemName">Plugin system name</param>
/// <param name="loadMode">Load plugins mode</param>
/// <returns>>Plugin descriptor</returns>
public virtual PluginDescriptor GetPluginDescriptorBySystemName <T>(string systemName, PluginsType loadMode = PluginsType.InstalledOnly)
where T : class, IPlugin
{
return(GetPluginDescriptors <T>(loadMode)
.SingleOrDefault(p => p.SystemName.Equals(systemName, StringComparison.InvariantCultureIgnoreCase)));
}
/// <summary>
/// Get plugin descriptors
/// </summary>
/// <typeparam name="T">The type of plugin to get.</typeparam>
/// <param name="loadMode">Load plugins mode</param>
/// <param name="group">Filter by plugin group; pass null to load all records</param>
/// <returns>Plugin descriptors</returns>
public virtual IEnumerable <PluginDescriptor> GetPluginDescriptors <T>(PluginsType loadMode = PluginsType.InstalledOnly, string group = null)
where T : class, IPlugin
{
return(GetPluginDescriptors(loadMode, group)
.Where(p => typeof(T).IsAssignableFrom(p.PluginType)));
}
/// <summary>
/// Gets plugins
/// </summary>
/// <typeparam name="T">The type of plugins to get.</typeparam>
/// <param name="loadMode">Load plugins mode</param>
/// <param name="group">Filter by plugin group; pass null to load all records</param>
/// <returns>Plugins</returns>
public virtual IEnumerable <T> GetPlugins <T>(PluginsType loadMode = PluginsType.InstalledOnly, string group = null) where T : class, IPlugin
{
return(GetPluginDescriptors <T>(loadMode, group).Select(p => p.Instance <T>()));
}
