/// <summary>
/// Creates an instance of the plugin corresponding to the GUID
/// </summary>
public IReportPlugin CreateInstance()
{
if (!File.Exists(FileName))
{
return(null);
}
Assembly ass = Assembly.LoadFile(FileName);
TypeFilter myFilter = new TypeFilter(MyInterfaceFilter);
foreach (Type type in ass.GetTypes())
{
if (type.GetInterfaces().Contains(typeof(IReportPlugin)))
{
IReportPlugin _plugin = Activator.CreateInstance(type) as IReportPlugin;
if (_plugin.GetPluginInfo().GUID == GUID)
{
return(_plugin);
}
_plugin.Dispose();
}
}
return(null);
}
public bool Save()
{
bool SaveOK = false;
if (_IsNew)
{
IReportPlugin plugin = CreateInstance();
if (plugin != null)
{
ReportPluginInfo plugininfo = plugin.GetPluginInfo();
GUID = plugininfo.GUID;
Description = plugininfo.Description;
ReportName = plugininfo.ReportName;
TopLevelMenuKey = plugininfo.TopLevelMenuKey;
SecondLevelMenuKey = plugininfo.SecondLevelMenuKey;
plugin.Dispose();
}
}
if (!Directory.Exists(_Folder))
{
Directory.CreateDirectory(_Folder);
}
if (GUID.Length > 0)
{
Serializer <ReportPluginInfo> .Save(this, _Folder + GUID + ".xml");
OnChanged(this);
_IsNew = false;
SaveOK = true;
}
return(SaveOK);
}
/// <summary>
/// Discover Plugins implemented in an assembly and creates corresponding XML file definitions for faster loading in the future.
/// </summary>
public static List <ReportPluginInfo> DiscoverPlugins(string fileName, ILogger logger)
{
if (!File.Exists(fileName))
{
return(null);
}
try
{
List <ReportPluginInfo> plugins = new List <ReportPluginInfo>();
if (!Directory.Exists(_Folder))
{
Directory.CreateDirectory(_Folder);
}
Assembly _assembly = Assembly.LoadFile(fileName);
foreach (Type t in _assembly.GetTypes())
{
if (t.GetInterfaces().Contains(typeof(IReportPlugin)))
{
IReportPlugin plugin = Activator.CreateInstance(t) as IReportPlugin;
ReportPluginInfo _plugininfo = plugin.GetPluginInfo();
_plugininfo.FileName = fileName;
if ((_plugininfo.GUID.Length > 0) && (_plugininfo.ReportName.Length > 0))
{
plugins.Add(_plugininfo);
string XMLFileName = _Folder + _plugininfo.GUID + ".xml";
if (File.Exists(XMLFileName))
{
File.Delete(XMLFileName);
}
Serializer <ReportPluginInfo> .Save(_plugininfo, XMLFileName);
_plugininfo._IsNew = false;
}
}
}
if (plugins.Count > 0)
{
return(plugins);
}
else
{
return(null);
}
}
catch (InvalidOperationException)
{
return(null);
}
catch (Exception ex)
{
logger.LogException(ex);
return(null);
}
}