/// <summary>
/// Perfoms build state on job start event.
/// </summary>
/// <param name="job">
/// Job to start.
/// </param>
public void Build(Job job)
{
Contract.Requires(job != null);
Contract.Requires(job.State == JobState.Ready);
throw new NotImplementedException();
}
private static string BuildObjectGraph(Job job)
{
var sb = new StringBuilder();
sb.AppendFormat("Task graph for job {0}:", job).AppendLine();
foreach (var task in job.Tasks)
{
sb.AppendFormat("{0}:", task).AppendLine().AppendLine("Dependencies:");
foreach (var input in task.Inputs)
{
sb.AppendFormat(" - {0}", input).AppendLine();
}
sb.AppendFormat("{0}:", task).AppendLine().AppendLine("Dependents:");
foreach (var output in task.Outputs)
{
sb.AppendFormat(" - {0}", output).AppendLine();
}
sb.AppendLine();
}
return sb.ToString();
}
/// <summary>
/// Perfoms build state on job start event.
/// </summary>
/// <param name="job">
/// Job to start.
/// </param>
public void Build(Job job)
{
if (!job.Tasks.All(task => RecoursiveCheckGraph(task, ImmutableList<Guid>.Empty)))
throw new InvalidJobException(
"Job graph contains cycles. ",
job.Id);
}
/// <summary>
/// Perfoms build state on job start event.
/// </summary>
/// <param name="job">
/// Job to start.
/// </param>
public void Build(Job job)
{
Logger.Write(
LogCategories.Information("Clearing outputs...",
LogCategories.TaskServices,
LogCategories.JobGraphCompletionStrategy));
foreach (var task in job.Tasks)
{
task.Outputs.Clear();
}
Logger.Write(
LogCategories.Information("Building outputs...",
LogCategories.TaskServices,
LogCategories.JobGraphCompletionStrategy));
foreach (var task in job.Tasks)
{
foreach (var input in task.Inputs)
{
input.Outputs.Add(task);
}
}
Logger.Write(
LogCategories.Information(BuildObjectGraph(job),
LogCategories.TaskServices,
LogCategories.JobGraphCompletionStrategy));
}
/// <summary>
/// Cancels execution of specified job.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void CancelJob(Job job)
{
Contract.Requires(job != null);
Contract.Requires(job.State == JobState.Processing);
Contract.Ensures(job.State == JobState.Cancelled);
throw new NotImplementedException();
}
/// <summary>
/// Removes job from scheduler.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void DeleteJob(Job job)
{
Contract.Requires(job != null);
Contract.Requires(job.State == JobState.Ready ||
job.State == JobState.Cancelled ||
job.State == JobState.Failed ||
job.State == JobState.Completed ||
job.State == JobState.Deleted);
Contract.Ensures(job.State == JobState.Deleted);
throw new NotImplementedException();
}
/// <summary>
/// Builds the job on job start event.
/// </summary>
/// <param name="job">
/// Job to build.
/// </param>
public void Build(Job job)
{
foreach (var strategy in Strategies)
{
Logger.Write(
LogCategories.Information(string.Format("Perfoming {0} on {1}", strategy.GetType().Name, job),
LogCategories.TaskServices,
LogCategories.TaskProviderService));
strategy.Build(job);
}
}
/// <summary>
/// Cancels execution of specified job.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void CancelJob(Job job)
{
UnsubscribeFromJob(job);
foreach (var task in job.Tasks)
{
taskQueue.CancelTask(task);
}
job.State = JobState.Cancelled;
}
/// <summary>
/// Removes job from scheduler.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void DeleteJob(Job job)
{
foreach (var task in job.Tasks)
{
taskQueue.DeleteTask(task);
}
jobs.Remove(job);
job.State = JobState.Deleted;
}
private void SubscribeToJob(Job job)
{
job.OnJobCompleted += Job_OnJobCompleted;
job.OnJobFailed += Job_OnJobFailed;
}
private void UnsubscribeFromJob(Job job)
{
try
{
job.OnJobCompleted -= Job_OnJobCompleted;
}
catch (Exception e)
{
Logger.Write(
LogCategories.Error(string.Format("UnsubscribeFromJob({0}):\n{1}", job, e),
LogCategories.TaskServices,
LogCategories.JobScheduler));
}
}
/// <summary>
/// Starts executin of specified job.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void StartJob(Job job)
{
Logger.Write(
LogCategories.Information(string.Format("Job {0} started.", job),
LogCategories.TaskServices,
LogCategories.JobScheduler));
// Subscribe to current job's events.
SubscribeToJob(job);
// Build the current job.
jobBuildingPipeline.Build(job);
foreach (var task in job.Tasks)
{
taskQueue.StartTask(task);
}
job.State = JobState.Processing;
}
private void InvokeOnJobFailed(Job job)
{
var handler = OnJobFailed;
if (handler != null)
handler(this, new JobEventArgs(job));
}
/// <summary>
/// Reinitializes cancelled job.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void RestartJob(Job job)
{
job.InitJobState();
foreach (var task in job.Tasks)
{
taskQueue.RestartTask(task);
}
job.State = JobState.Ready;
}
/// <summary>
/// Registers newly created job in manager and sets job's UID.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void RegisterJob(Job job)
{
Contract.Requires(job != null);
Contract.Requires(job.State == JobState.Creating);
Contract.Ensures(job.State == JobState.Ready);
throw new NotImplementedException();
}
/// <summary>
/// Reinitializes cancelled job.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void RestartJob(Job job)
{
Contract.Requires(job != null);
Contract.Requires(job.State == JobState.Cancelled);
Contract.Ensures(job.State == JobState.Ready);
throw new NotImplementedException();
}
/// <summary>
/// Creates new instance of <see cref="Job"/>.
/// </summary>
/// <param name="name">
/// Job's name.
/// </param>
/// <returns>
/// New instance of <see cref="Job"/>.
/// </returns>
public Job CreateJob(string name)
{
var job = new Job(name) { Id = Guid.NewGuid(), State = JobState.Creating };
jobs.Add(job);
return job;
}
/// <summary>
/// Perfoms build state on job start event.
/// </summary>
/// <param name="job">
/// Job to start.
/// </param>
public void Build(Job job)
{
Logger.Write(LogCategories.Information(string.Format("Initializing job {{{0}}}", job), LogCategories.TaskServices));
job.InitJobState();
}
/// <summary>
/// Registers newly created job in manager and sets job's UID.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/>.
/// </param>
public void RegisterJob(Job job)
{
Logger.Write(
LogCategories.Information(string.Format("Job {0} is created.", job),
LogCategories.TaskServices,
LogCategories.JobScheduler));
foreach (var task in job.Tasks)
{
taskQueue.RegisterTask(task);
}
job.State = JobState.Ready;
}
/// <summary>
/// Initalizes new instance of <see cref="JobEventArgs"/> class.
/// </summary>
/// <param name="job">
/// An instance of <see cref="Job"/> that provides data for current event.
/// </param>
public JobEventArgs(Job job)
{
Job = job;
}