/// <summary>
/// Executes the worker.
/// </summary>
/// <param name="info">The worker information.</param>
public void ExecuteWorker(ExtensionInfo info)
{
Logger.Info("Creating worker with configuration set {0}", info.Name);
IWorker worker = CreateWorker(info.AssemblyPath, info.ClassName);
ConfigureCommonValues(worker);
info.Configure(worker);
ExecuteWorker(worker);
}
/// <summary>
/// Starts the assembly.
/// </summary>
/// <param name="info">The information.</param>
/// <returns>
/// <c>true</c> if the worker was successfully started, otherwise <c>false</c>
/// </returns>
public static bool StartWorker(ExtensionInfo info)
{
Logger.Info("Starting worker with name: {0}", info.Name);
if (!File.Exists(Path.GetFullPath(info.AssemblyPath)))
{
Logger.Warn("Unable to start worker '{0}', the assembly {1} could not be found.", info.Name, Path.GetFileName(info.AssemblyPath));
return false;
}
WorkerProcess process = null;
if (_executingProcesses.ContainsKey(Path.GetFullPath(info.AssemblyPath)))
{
Logger.Debug("Executing domain for assembly '{0}' found, executing worker '{1}' in existing domain.", Path.GetFileName(info.AssemblyPath), info.Name);
process = _executingProcesses[info.AssemblyPath];
}
else
{
Logger.Debug("Creating domain for assembly '{0}'", info.AssemblyPath);
Type remoteType = typeof(WorkerProcess);
AppDomainSetup domainInfo = new AppDomainSetup();
// Prepares a different domain for extension assemblies search. This isolates the loaded assemblies from the application domain.
domainInfo.ApplicationBase = AppDomain.CurrentDomain.BaseDirectory;
AppDomain domain = AppDomain.CreateDomain(Guid.NewGuid().ToString().GetHashCode().ToString("x"), null, domainInfo);
process = (WorkerProcess)domain.CreateInstanceAndUnwrap(remoteType.Assembly.FullName, remoteType.FullName);
domain.UnhandledException += OnWorkerDomainUnhandledException;
_executingDomains[Path.GetFullPath(info.AssemblyPath)] = domain;
_executingProcesses[Path.GetFullPath(info.AssemblyPath)] = process;
}
process.ExecuteWorker(info);
return true;
}
/// <summary>
/// Creates a new object that is a copy of the current instance.
/// </summary>
/// <returns>A new object that is a copy of this instance.</returns>
public object Clone()
{
ExtensionInfo result = new ExtensionInfo();
result.name = (string)this.name.Clone();
result.assembly = (string)this.assembly.Clone();
result.token = (string)this.token.Clone();
result.klass = (string)this.klass.Clone();
result.properties = (PropertiesCollection)this.properties.Clone();
return result;
}
