/// <summary>
/// Only for use by plugins during IPlugin.Install. Call Plugin.Install instead of this method, since plugins often must perform other initialization actions.
/// Adds the specified plugin to AllPlugins, QuerystringPlugins, CachingSystems, ImageEncoders, and ImageBuilderExtensions, based
/// on which interfaces the instance implements. For ICache and IEncoder, the plugin is inserted at the beginning of CachingSystems and ImageEncoders respectively.
/// To reiterate, plugins may register event handlers and modify settings - thus you should use the plugin's method to uninstall them vs. using this method.
/// Will not register a plugin that is already installed, unless it implements IMultiInstancePlugin.
/// </summary>
/// <param name="plugin"></param>
public void add_plugin(IPlugin plugin)
{
if (!(plugin is IMultiInstancePlugin) && HasPlugin(plugin.GetType()))
{
AcceptIssue(new Issue("An instance of the specified plugin (" + plugin.GetType().ToString() + ") has already been registered.",
"The plugin should implement IMultiInstancePlugin to support multiple instances.", IssueSeverity.Error));
return;
}
AllPlugins.Add(plugin);
if (plugin is IQuerystringPlugin)
{
QuerystringPlugins.Add(plugin as IQuerystringPlugin);
}
if (plugin is IFileExtensionPlugin)
{
FileExtensionPlugins.Add(plugin as IFileExtensionPlugin);
}
if (plugin is ICache)
{
CachingSystems.AddFirst(plugin as ICache);
}
if (plugin is IEncoder)
{
ImageEncoders.AddFirst(plugin as IEncoder);
}
if (plugin is BuilderExtension)
{
ImageBuilderExtensions.Add(plugin as BuilderExtension);
}
if (plugin is IVirtualImageProvider)
{
VirtualProviderPlugins.Add(plugin as IVirtualImageProvider);
}
if (plugin is ISettingsModifier)
{
SettingsModifierPlugins.Add(plugin as ISettingsModifier);
}
if (plugin is ICurrentConfigProvider)
{
ConfigProviders.Add(plugin as ICurrentConfigProvider);
}
if (plugin is ILogManager)
{
LogManager = plugin as ILogManager;
}
if (plugin is ILicensedPlugin || plugin is ILicenseProvider)
{
FireLicensePluginsChange();
}
}
/// <summary>
/// For use only by plugins during .Uninstall.
/// Removes the specified plugin from AllPlugins, QuerystringPlugins, CachingSystems, ImageEncoders, and ImageBuilderExtensions, based
/// on which interfaces the instance implements.
/// Plugins may register event handlers and modify settings - thus you should use the plugin's method to uninstall them vs. using this method.
/// </summary>
/// <param name="plugin"></param>
public void remove_plugin(object plugin)
{
if (plugin is IPlugin)
{
AllPlugins.Remove(plugin as IPlugin);
}
if (plugin is IQuerystringPlugin)
{
QuerystringPlugins.Remove(plugin as IQuerystringPlugin);
}
if (plugin is IFileExtensionPlugin)
{
FileExtensionPlugins.Remove(plugin as IFileExtensionPlugin);
}
if (plugin is ICache)
{
CachingSystems.Remove(plugin as ICache);
}
if (plugin is IEncoder)
{
ImageEncoders.Remove(plugin as IEncoder);
}
if (plugin is BuilderExtension)
{
ImageBuilderExtensions.Remove(plugin as BuilderExtension);
}
if (plugin is IVirtualImageProvider)
{
VirtualProviderPlugins.Remove(plugin as IVirtualImageProvider);
}
if (plugin is ISettingsModifier)
{
SettingsModifierPlugins.Remove(plugin as ISettingsModifier);
}
if (plugin is ICurrentConfigProvider)
{
ConfigProviders.Remove(plugin as ICurrentConfigProvider);
}
if (plugin is ILogManager && LogManager == plugin)
{
LogManager = null;
}
if (plugin is ILicensedPlugin || plugin is ILicenseProvider)
{
FireLicensePluginsChange();
}
}
/// <summary>
/// Removes all plugins, of every kind. Logs any errors encountered. (Not all plugins support uninstallation)
/// </summary>
public void RemoveAll()
{
//Follow uninstall protocol
foreach (IPlugin p in AllPlugins)
{
if (!p.Uninstall(c))
{
this.AcceptIssue(new Issue("Uninstall of " + p.ToString() + " reported failure.", IssueSeverity.Error));
}
}
IList[] collections = new IList[] { AllPlugins.GetCollection(), QuerystringPlugins.GetCollection(), FileExtensionPlugins.GetCollection()
, CachingSystems.GetCollection(), ImageEncoders.GetCollection(), ImageBuilderExtensions.GetCollection() };
//Then check all collections, logging an issue if they aren't empty.
foreach (IList coll in collections)
{
if (coll.Count > 0)
{
string items = "";
foreach (object item in coll)
{
items += item.ToString() + ", ";
}
this.AcceptIssue(new Issue("Collection " + coll.ToString() + " was not empty after RemoveAllPlugins() executed!",
"Remaining items: " + items, IssueSeverity.Error));
}
}
}