internal void Run(string[] args)
{
// Should you want to decompose to running single tasks you can just create a workflow containing nodes with no parents or
// children. The system works out where to start by identifying nodes with no parents, and assuming they're immediately
// runnable. The hosting workflow then gives you a handle by which you can treat the individual tasks as a related set.
var t1 = new TaskName("TestNode1");
var t2 = new TaskName("TestNode2");
var t3 = new TaskName("TestNode3");
var t4 = new TaskName("TestNode4");
var t5 = new TaskName("TestNode5");
var t6 = new TaskName("TestNode6");
var type1 = new TaskType("testTaskType");
var workflow = new Common.Workflow(new WorkflowName("TestWorkflow"));
workflow.AddTask(t1, new Payload("Node1"), type1, SimplePriority, EmptyTaskList, new[] { t2 });
workflow.AddTask(t2, new Payload("Node2"), type1, SimplePriority, EmptyTaskList, new[] { t3, t4, t5, t6 });
workflow.AddTask(t3, new Payload("Node3"), type1, SimplePriority, new[] { t2 }, EmptyTaskList);
workflow.AddTask(t4, new Payload("Node4"), type1, SimplePriority, new[] { t2 }, EmptyTaskList);
workflow.AddTask(t5, new Payload("Node5"), type1, SimplePriority, new[] { t2 }, EmptyTaskList);
workflow.AddTask(t6, new Payload("Node6"), type1, SimplePriority, new[] { t2 }, EmptyTaskList);
// A client will start acting on tasks immediately. May not want that to
// be behaviour -- so might want to have an independent submit-only client. TaskHandler only needed for
// submission. TaskHandler needs to be stateless, taking configuration for a specific task on a run call? No, that's
// true per-task, but agiven ITaskHandler instance might be configured once wth e.g. compute resource connection details
var th = new TaskHandler();
var wh = new WorkflowHandler();
var complete = new ManualResetEvent(false);
var failed = new ManualResetEvent(false);
wh.WorkflowComplete += (s, w) => { Console.WriteLine("workflow complete: " + w); complete.Set(); };
wh.WorkflowFailed += (s, w) => { Console.WriteLine("workflow failed: " + w); failed.Set(); };
EventHandler <Exception> eh = (s, e) => { };
var wm = new WorkflowManagement(ConnectionMultiplexer.Connect("localhost"), th, wh, new WorkflowManagementId("sampleApp"), eh);
wm.ClearBacklog();
// Pushing a workflow causes it to be executed
var id = wm.PushWorkflow(workflow);
Console.WriteLine("Workflow pushed");
WaitHandle.WaitAny(new[] { failed, complete });
wm.CleanUp(id.ToString());
Console.ReadLine();
}
private static Common.Workflow CreateTestWorkflow()
{
var workflow = new Common.Workflow(new WorkflowName("TestWorkflow"));
workflow.AddTask(new TaskName("1"), new Payload("payload"), NoType, SimplePriority, EmptyTaskList, new [] { new TaskName("2") });
for (int i = 2; i < 10; i++)
{
workflow.AddTask(new TaskName(i.ToString()), new Payload("payload"), NoType, SimplePriority, new [] { new TaskName((i - 1).ToString()) }, new [] { new TaskName((i + 1).ToString()) });
}
return(workflow);
}
internal void Run(string[] args)
{
// Should you want to decompose to running single tasks you can just create a workflow containing nodes with no parents or
// children. The system works out where to start by identifying nodes with no parents, and assuming they're immediately
// runnable. The hosting workflow then gives you a handle by which you can treat the individual tasks as a related set.
var t1 = new TaskName("TestNode1");
var t2 = new TaskName("TestNode2");
var t3 = new TaskName("TestNode3");
var t4 = new TaskName("TestNode4");
var t5 = new TaskName("TestNode5");
var t6 = new TaskName("TestNode6");
var type1 = new TaskType("testTaskType");
var workflow = new Common.Workflow(new WorkflowName("TestWorkflow"));
workflow.AddTask(t1, new Payload("Node1"), type1, SimplePriority, EmptyTaskList, new[] { t2 });
workflow.AddTask(t2, new Payload("Node2"), type1, SimplePriority, EmptyTaskList, new[] { t3, t4, t5, t6 });
workflow.AddTask(t3, new Payload("Node3"), type1, SimplePriority, new[] { t2 }, EmptyTaskList);
workflow.AddTask(t4, new Payload("Node4"), type1, SimplePriority, new[] { t2 }, EmptyTaskList);
workflow.AddTask(t5, new Payload("Node5"), type1, SimplePriority, new[] { t2 }, EmptyTaskList);
workflow.AddTask(t6, new Payload("Node6"), type1, SimplePriority, new[] { t2 }, EmptyTaskList);
// A client will start acting on tasks immediately. May not want that to
// be behaviour -- so might want to have an independent submit-only client. TaskHandler only needed for
// submission. TaskHandler needs to be stateless, taking configuration for a specific task on a run call? No, that's
// true per-task, but agiven ITaskHandler instance might be configured once wth e.g. compute resource connection details
var th = new TaskHandler();
var wh = new WorkflowHandler();
var complete = new ManualResetEvent(false);
var failed = new ManualResetEvent(false);
wh.WorkflowComplete += (s, w) => { Console.WriteLine("workflow complete: " + w); complete.Set(); };
wh.WorkflowFailed += (s, w) => { Console.WriteLine("workflow failed: " + w); failed.Set(); };
EventHandler<Exception> eh = (s, e) => { };
var wm = new WorkflowManagement(ConnectionMultiplexer.Connect("localhost"), th, wh, new WorkflowManagementId("sampleApp"), eh);
wm.ClearBacklog();
// Pushing a workflow causes it to be executed
var id = wm.PushWorkflow(workflow);
Console.WriteLine("Workflow pushed");
WaitHandle.WaitAny(new[] { failed, complete });
wm.CleanUp(id.ToString());
Console.ReadLine();
}
private static Common.Workflow CreateTestWorkflow()
{
var workflowName = "TestWorkflow";
var tasks = new List<Task>();
tasks.Add(new Task { Name = "1", Payload = "payload", Parents = new string[] { }, Children = new string[] { "2" }, Workflow = workflowName });
for(int i = 2; i < 10; i++)
{
tasks.Add(new Task { Type = "", Name = i.ToString(), Payload = "payload", Parents = new string[] { (i - 1).ToString() }, Children = new string[] { (i + 1).ToString() }, Workflow = workflowName });
}
var workflow = new Common.Workflow { Name = workflowName, Tasks = tasks };
return workflow;
}
private static Common.Workflow CreateTestWorkflow()
{
var workflow = new Common.Workflow(new WorkflowName("TestWorkflow"));
workflow.AddTask(new TaskName("1"), new Payload("payload"), NoType, SimplePriority, EmptyTaskList, new [] { new TaskName("2") });
for(int i = 2; i < 10; i++)
{
workflow.AddTask(new TaskName(i.ToString()), new Payload("payload"), NoType, SimplePriority, new [] { new TaskName((i - 1).ToString()) }, new [] { new TaskName((i + 1).ToString()) });
}
return workflow;
}
