/// <summary>
/// Initializes a new instance of the <see cref="PlugInData"/> class.
/// </summary>
/// <param name="plugIn">A <see cref="IPlugIn"/>-reference to the PlugIn for which to keep the information.</param>
public PlugInData(IPlugIn plugIn)
{
if (plugIn == null)
{
throw new ArgumentNullException("plugIn");
}
this.plugIn = plugIn;
Type type = plugIn.GetType();
if (type == null)
{
throw new InvalidOperationException("Unable to retrieve type of 'plugIn'-instance");
}
Assembly asm = type.Assembly;
if (asm == null)
{
throw new InvalidOperationException("Unable to retrieve assembly-information for plugIn-Type");
}
this.assemblyFullName = asm.FullName;
}
/// <summary>
/// Loads the <paramref name = "plugIn" /> (calling its <see cref = "IPlugIn.LoadPlugIn" /> method) and
/// adds it to the <see cref = "Plugins" /> dictionary for access by other services.
/// </summary>
/// <param name = "plugIn">The plugin to load.</param>
/// <exception cref = "ArgumentNullException">If <paramref name = "plugIn" /> is null.</exception>
public void LoadPlugIn(IPlugIn plugIn)
{
if (plugIn == null)
{
throw new ArgumentNullException("plugIn");
}
//Services核心服务会从这里传入插件！！查看类PluginLoaderBase的实现
plugIn.LoadPlugIn(this);
_plugins.Add(plugIn.GetType(), plugIn);
//_container.AddComponent(plugIn.GetType().FullName, typeof(IPlugIn), plugIn.GetType());
//插件加载后，立刻加入容器
var _builder = new ContainerBuilder();
//_builder.Register();
_builder.RegisterType(plugIn.GetType()).As <IPlugIn>();
_builder.Update(_container);
// _builder.Update(_container);
}
/// <summary>
/// Loads the <paramref name = "plugIn" /> (calling its <see cref = "IPlugIn.LoadPlugIn" /> method) and
/// adds it to the <see cref = "Plugins" /> dictionary for access by other services.
/// </summary>
/// <param name = "plugIn">The plugin to load.</param>
/// <exception cref = "ArgumentNullException">If <paramref name = "plugIn" /> is null.</exception>
public void LoadPlugIn(IPlugIn plugIn)
{
if (plugIn == null)
{
throw new ArgumentNullException("plugIn");
}
plugIn.LoadPlugIn(this);
var type = plugIn.GetType();
_plugins.Add(type, plugIn);
_container.Bind<IPlugIn>().To(type).InSingletonScope().Named(type.FullName);
}
public FrameworkElement GetElement(IPlugIn plugInManager)
{
var fullType = plugInManager.GetType();
var method = fullType.GetMethod("GetElement");
var element = method.Invoke(
plugInManager,
new object[]
{
});
return(element as FrameworkElement);
}
public void PlacePlugIn(IPlugIn plugIn, object dataContext)
{
var bootstrapper = ServiceLocator.Current.GetInstance <Bootstrapper>();
FrameworkElement element = null;
try
{
element = bootstrapper.GetElement(plugIn);
}
catch
{
MessageBox.Show(
"Error when creating element for plugin " + plugIn.GetType());
}
if (element == null)
{
return;
}
element.DataContext = dataContext;
if (PlugInHost1.Child == null)
{
PlugInHost1.Child = element;
return;
}
if (PlugInHost2.Child == null)
{
PlugInHost2.Child = element;
return;
}
MessageBox.Show("No more room");
}
public void ExecuteRequest(string jobId, string pluginName, Version plugInVersion, PerformContext context)
{
// create a logger
var logger = context.CreateLoggerForPerformContext <HangfireManager>();
// This is a 1st pass at preventing duplicate recurring job when the previous execution is still running
var job = JobStorage.Current.GetConnection().GetRecurringJobs().Where(j => j.Id == jobId).FirstOrDefault();
if (job != null)
{
if (job.LastJobState == "Enqueued" || job.LastJobState == "Processing")
{
logger.Information("This goes to the job console automatically");
logger.Warning("Skipping execution of JobId: {jobId}, it is still running from a previous execution.", jobId);
return;
}
}
// dynamically select the correct plug-in assy to use to process the event
IPlugIn jobPlugIn = _plugInsManager.GetJobPlugIn(pluginName, plugInVersion).PlugInImpl;;
var plugInLoadContextName = AssemblyLoadContext.GetLoadContext(jobPlugIn.GetType().Assembly).Name;
logger.Information("Running plugin {pluginInfo} in ALC: {plugInLoadContextName}.", jobPlugIn.GetPlugInInfo(), plugInLoadContextName);
try
{
// call the method on the dynamically selected assy passing in an anonymous action delagate for the logging method
var result = jobPlugIn.Execute(context.BackgroundJob.Id, (LOG_LEVEL logLevel, string logMessage) =>
{
switch (logLevel)
{
case LOG_LEVEL.INFO:
logger.Information(logMessage);
break;
case LOG_LEVEL.WARNING:
logger.Warning(logMessage);
break;
case LOG_LEVEL.ERROR:
logger.Error(logMessage);
break;
}
});
// write post execution log message
switch (result.StepStatus)
{
case STD_STEP_STATUS.SUCCESS:
logger.Information(result.ReturnMessage);
break;
case STD_STEP_STATUS.FAILURE:
logger.Error(result.ReturnMessage);
break;
}
}
catch (Exception ex)
{
logger.Error($"Unhandled exception occured in plugin: [{ex.ToString()}]");
}
finally
{
if (jobPlugIn != null)
{
jobPlugIn = null;
}
}
}
/// <summary>
/// Loads the PlugIns.
/// </summary>
/// <param name="alreadyLoadedPlugIns"> List of Plugins </param>
public void LoadPlugIns(PlugInDataList alreadyLoadedPlugIns)
{
this.plugIns.Clear();
var textReader = new XmlTextReader(this.FileName);
while (textReader.Read())
{
if (textReader.Name == "add")
{
string type = textReader.GetAttribute("type");
IPlugIn plugIn = null;
if (type != null)
{
Type plugInType = Type.GetType(type);
if (plugInType != null)
{
object plugInInstance = Activator.CreateInstance(plugInType);
plugIn = plugInInstance as IPlugIn;
}
}
if (plugIn != null)
{
PlugInData plugInData = new PlugInData(plugIn);
bool alreadyLoaded = false;
foreach (PlugInData loadedPlugInData in this.LoadedPlugIns)
{
if (loadedPlugInData.AssemblyFullName == plugInData.AssemblyFullName)
{
alreadyLoaded = true;
break;
}
}
if (!alreadyLoaded)
{
this.LoadedPlugIns.Add(plugInData);
}
}
}
}
// create a plugIn list to collect invalid PlugIns
var invalidPlugIns = new PlugInDataList();
// try and get the baseobjects published by the PlugIn
foreach (PlugInData plugInData in this.plugIns)
{
IPlugIn plugIn = plugInData.PlugIn;
Type plugInType = plugIn.GetType();
// JP 22/12/2011 - This does not do anything
System.Reflection.Assembly plugInAssembly = plugInType.Assembly;
}
// Remove all invalid PlugIns from the PlugIns list
foreach (PlugInData plugInData in invalidPlugIns)
{
this.plugIns.Remove(plugInData);
}
}
