/// <summary>
/// Clean up when job done.
/// </summary>
/// <param name="job">Job.</param>
protected virtual void CleanUpJob(Job job)
{
}
/// <summary>
/// Failure notification.
/// </summary>
/// <param name="job">Job.</param>
protected virtual void OnJobFail(Job job)
{
string message = BuildXmlCommand(CommandType.JobDone.ToString(), job.Guid, FailFlag);
SendToAll(message);
}
/// <summary>
/// Dispatch job, and diterminate how to run this job.
/// </summary>
/// <param name="job">Job.</param>
protected virtual void DispatchJob(Job job)
{
}
/// <summary>
/// Process this job.
/// </summary>
/// <param name="job">Job.</param>
/// <param name="exitEvent">Exiting event.</param>
/// <returns>True if processed, otherwise false.</returns>
protected virtual bool ProcessJob(Job job, ManualResetEvent exitEvent)
{
return false;
}
/// <summary>
/// Enqueue a finished job.
/// </summary>
/// <param name="job">Job to enqueue.</param>
public void EnqueueDoneJob(Job job)
{
if (job == null)
{
throw new ArgumentNullException("job");
}
lock (_schedulingJobs)
{
if (_schedulingJobs.ContainsValue(job))
{
_schedulingJobs.Remove(job.Guid);
}
}
lock (_localToDoJobs)
{
if (_localToDoJobs.ContainsValue(job))
{
_localToDoJobs.Remove(job.Guid);
}
}
lock (_doneJobs)
{
job.Status = JobStatus.Done;
if (!_doneJobs.ContainsKey(job.Guid))
{
_doneJobs.Add(job.Guid, job);
}
}
}
/// <summary>
/// Enqueue a job into scheduling.
/// </summary>
/// <param name="job">Job to enqueue.</param>
public void EnqueueToScheduleJob(Job job)
{
if (job == null)
{
throw new ArgumentNullException("job");
}
lock (_schedulingJobs)
{
if (!_schedulingJobs.ContainsKey(job.Guid))
{
_schedulingJobs.Add(job.Guid, job);
}
}
}
/// <summary>
/// Submit job.
/// </summary>
/// <param name="taskName">Task name.</param>
/// <param name="jobName">Job name.</param>
/// <param name="command">Command.</param>
/// <param name="arguments">Arguments.</param>
/// <param name="doneFile">File path to indicate this job is done.</param>
public void Submit(string taskName, string jobName,
string command, string arguments, string doneFile)
{
if (string.IsNullOrEmpty(command))
{
throw new ArgumentNullException("command");
}
if (string.IsNullOrEmpty(jobName))
{
throw new ArgumentNullException("jobName");
}
if (string.IsNullOrEmpty(arguments))
{
throw new ArgumentNullException("arguments");
}
Job job = new Job(CommandLineServerWedge.WedgeName, taskName);
job.Name = jobName;
job.Command = command;
job.Arguments = arguments;
if (!string.IsNullOrEmpty(doneFile))
{
job.DoneFile = doneFile;
job.Name = Path.GetFileName(doneFile);
}
Submit(job);
}
/// <summary>
/// Submit job.
/// </summary>
/// <param name="job">Job to submit.</param>
public void Submit(Job job)
{
if (job == null)
{
throw new ArgumentNullException("job");
}
XmlDocument dom = new XmlDocument();
XmlElement ele = dom.CreateElement(MessageType.JobManage.ToString());
ele.SetAttribute("command", CommandType.JobSubmit.ToString());
string jobXml = job.ToXml();
ele.InnerXml = jobXml;
ProcessNode.SendMessage(_udpSender, ele.OuterXml, ServerIP, ServerPort);
}
/// <summary>
/// Process this job.
/// </summary>
/// <param name="job">Job.</param>
/// <param name="exitEvent">Exiting event.</param>
/// <returns>True if processed, otherwise false.</returns>
protected override bool ProcessJob(Job job, ManualResetEvent exitEvent)
{
IWedge wedge = FindSuitableWedge(job.WedgeName);
if (wedge == null)
{
return false;
}
else
{
IClientWedge clientWedge = wedge as IClientWedge;
if (clientWedge == null)
{
return false;
}
else
{
return clientWedge.ProcessJob(job, exitEvent);
}
}
}
/// <summary>
/// Clean up when job done.
/// </summary>
/// <param name="job">Job.</param>
protected override void CleanUpJob(Job job)
{
string message = BuildXmlCommand(CommandType.JobDone.ToString(), job.Guid, SuccessFlag);
SendToAll(message);
}
/// <summary>
/// Dispatch job, and diterminate how to run this job.
/// </summary>
/// <param name="job">Job.</param>
protected override void DispatchJob(Job job)
{
job.Status = JobStatus.LocalRunning;
}
/// <summary>
/// Dispose job.
/// </summary>
/// <param name="job">Job to dispose.</param>
protected override void DispatchJob(Job job)
{
// dead lock while _toScheduleJobs with ((IProcessNode)this).Nodes
lock (((IProcessNode)this).Nodes)
{
NodeInfo ci = FindMaxCapabilityNode(((IProcessNode)this).Nodes, job);
if (ci != null && !ci.Busy && ci.NodeType == NodeType.Execution)
{
Console.WriteLine("{0} Dispatch job {1} out to {2}",
DateTime.Now.ToLongTimeString(), Path.GetFileName(job.Name),
ci.ToString());
string message = job.ToXml();
SendUdpMessage(message, ci.IP, ci.Port);
job.Status = JobStatus.Dispatched;
ci.Busy = true;
}
}
}
/// <summary>
/// Handle job submittion.
/// </summary>
/// <param name="dom">XML message.</param>
private void HandleJobSubmit(XmlDocument dom)
{
XmlElement jobEle = (XmlElement)dom.DocumentElement.SelectSingleNode(MessageType.Job.ToString());
string taskName = jobEle.GetAttribute("taskName");
string wedgeName = jobEle.GetAttribute("wedgeName");
IServerWedge wedge = (IServerWedge)FindSuitableWedge(wedgeName);
Job job = null;
if (wedge == null)
{
job = new Job("default", taskName);
}
else
{
job = wedge.CreateJob();
}
job.ParseXml(jobEle);
((IProcessNode)this).EnqueueToScheduleJob(job);
}
/// <summary>
/// Not thread safe.
/// </summary>
/// <param name="nodes">Node dictionary.</param>
/// <param name="job">Job.</param>
/// <returns>Node info.</returns>
private static NodeInfo FindMaxCapabilityNode(Dictionary<string, NodeInfo> nodes, Job job)
{
NodeInfo foundMaxPowerNode = null;
NodeInfo foundMatchNode = null;
foreach (NodeInfo ci in nodes.Values)
{
if (!ci.Busy && ci.NodeType == NodeType.Execution)
{
if (foundMaxPowerNode == null)
{
foundMaxPowerNode = ci;
continue;
}
else if (foundMaxPowerNode.DoneCount < ci.DoneCount)
{
foundMaxPowerNode = ci;
}
if (ci.LastDoneTaskName == job.TaskName)
{
if (foundMatchNode == null)
{
foundMatchNode = ci;
}
else if (foundMatchNode.DoneCount < ci.DoneCount)
{
foundMatchNode = ci;
}
}
}
}
if (foundMatchNode != null)
{
return foundMatchNode;
}
else
{
return foundMaxPowerNode;
}
}
/// <summary>
/// Client to process a special job item.
/// </summary>
/// <param name="job">Job to process.</param>
/// <param name="exitEvent">Existing event.</param>
/// <returns>True if processed, otherwise false.</returns>
public bool ProcessJob(Job job, WaitHandle exitEvent)
{
if (job == null)
{
throw new ArgumentNullException("job");
}
if (exitEvent == null)
{
throw new ArgumentNullException("exitEvent");
}
// deploy application to local machine
Console.WriteLine("{0} Start running job {1}",
DateTime.Now.ToShortTimeString(), job.Name);
string newCommandPath = DeployLocal(job.Command);
bool result = CommandLine.RunCommand(newCommandPath, job.Arguments,
exitEvent, Environment.CurrentDirectory);
if (!string.IsNullOrEmpty(job.DoneFile) &&
!File.Exists(job.DoneFile))
{
// testing on the done file, which is a flag indicating the job is done
result = false;
}
Console.WriteLine("{0} Job {1} was {2}",
DateTime.Now.ToShortTimeString(), job.Name, result ? "successfully done" : "failed");
return result;
}
