/// <summary>
/// Adds the available task.
/// </summary>
/// <param name="task">The task.</param>
protected void AddAvailableTask(TaskDescription task)
{
if (String.IsNullOrEmpty(task.Name) && task.TaskType != null)
{
task.Name = task.TaskType.Name;
}
if (_availableTasks.ContainsKey(task.Name))
{
throw new InvalidOperationException(
string.Format("A task with the name {0} already exists in this collection.", task.Name));
}
_availableTasks[task.Name] = task;
}
/// <summary>
/// Creates the task.
/// </summary>
/// <param name="taskDescription">The task description.</param>
/// <returns></returns>
public ITask CreateTask(TaskDescription taskDescription)
{
if (taskDescription != null)
{
try
{
return(ServiceLocator.GetService <IObjectBuilder>().Create <ITask>(taskDescription.TaskType));
}
catch (Exception ex)
{
OnError(ex);
}
}
return(null);
}
public static object ExecuteTask(this ITaskExecutionService service, string taskName, object contextObject,
params object[] contextArgs)
{
if (service.HasTask(taskName))
{
TaskDescription description = service.GetTaskDescription(taskName);
if (description != null)
{
ITask task = service.CreateTask(description);
return(service.ExecuteTask(task, contextObject, contextArgs));
}
}
throw new InvalidOperationException(
string.Format("A task with the TaskName of '{0}' could not be found.", taskName));
}
public static object ExecuteTask(this ITaskExecutionService service, ITask task, object contextObject,
params object[] contextArgs)
{
TaskDescription description = service.GetTaskDescription(task);
ITaskContext context;
if (description == null)
{
context = service.CreateTaskContext(contextObject, contextArgs);
}
else
{
context = description.CreateTaskContext(contextObject, contextArgs);
}
return(service.ExecuteTask(task, context));
}
/// <summary>
/// Gets the description.
/// </summary>
/// <param name="task">The task.</param>
/// <returns></returns>
public TaskDescription GetDescription(ITask task)
{
if (task == null)
{
return(null);
}
Type taskType = task.GetType();
foreach (TaskDescription description in _availableTasks.Values)
{
if (description.TaskType == taskType)
{
return(description);
}
}
return(TaskDescription.GetDescription(task));
}
/// <summary>
/// Creates the task.
/// </summary>
/// <param name="taskDescription">The task description.</param>
/// <returns></returns>
public ITask CreateTask(TaskDescription taskDescription)
{
return(_factory.CreateTask(taskDescription));
}
