/// <summary>
/// WaitForWorkflowTerminate
/// </summary>
/// <param name="request">Request</param>
/// <returns>WorkflowInfo</returns>
private WorkflowInfo WaitForWorkflowTerminate(ReStartWorkflowRequest request)
{
const int retryNum = 10;
const int delayRetryMsec = 1000;
WorkflowInfo oldWf = null;
for (int wait = 0; wait < retryNum; wait++)
{
int tot;
IEnumerable <string> workflowCodes;
oldWf = _workflow.GetWorkflows(Guid.Parse(request.OldWorkflowId),
string.Empty, string.Empty, false, null, null, string.Empty, string.Empty, 0, 10, out tot, out workflowCodes).First();
if (oldWf.Status == WorkflowStatusType.InProgress.ToString())
{
System.Threading.Thread.Sleep(delayRetryMsec);
}
else
{
break;
}
}
return(oldWf);
}
/// <summary>
/// ReStart Workflow
/// </summary>
/// <param name="request">Request</param>
/// <returns>ReStartWorkflowResponse</returns>
public ReStartWorkflowResponse ReStartWorkflow(ReStartWorkflowRequest request)
{
return(Channel.ReStartWorkflow(request));
}
/// <summary>
/// ReStart Workflow
/// </summary>
/// <param name="request">Request</param>
/// <returns>ReStartWorkflowResponse</returns>
public ReStartWorkflowResponse ReStartWorkflow(ReStartWorkflowRequest request)
{
// Cancell workflow
var resp = CancelWorkflow(new ControlWorkflowRequest
{
WorkflowOid = request.OldWorkflowId
});
if (resp.Message != Library.Properties.Resources.SUCCESS_RESULT)
{
return(new ReStartWorkflowResponse
{
Message = resp.Message,
WorkflowId = request.OldWorkflowId
});
}
// Wait for workflow to terminate
WorkflowInfo oldWf = WaitForWorkflowTerminate(request);
if (oldWf == null || oldWf.Status == WorkflowStatusType.InProgress.ToString())
{
return(new ReStartWorkflowResponse
{
Message = "Workflow still running",
WorkflowId = request.OldWorkflowId
});
}
// Get workflow parameters
var props = _workflow.GetWorkflowParameters(Guid.Parse(request.OldWorkflowId));
var startWorkflowRequest = new StartWorkflowRequest
{
Domain = oldWf.Domain,
WorkflowCode = oldWf.WorkflowCode,
WfRuntimeValues = props.Select(p => new WfProperty
{
Name = p.Name,
Type = p.Type,
Value = p.Value
}).ToArray()
};
// Restart workflow
var startWorkflowResponse = StartWorkflow(startWorkflowRequest);
#if RESTART_SAME_AS_OLD
// The code below can be used when we want to restart a workflow and forward its
// execution till the existing one.
// Usefull when we make changes which are not back compatible. We need to terminate all
// the existing workflows and start new ones without having users to start from the begin
// the process.
// TODO:
// can go till the old point of execution
if (request.RestartMode == "SAME_AS_OLD")
{
// TODO: need to find the way to wait until wf activity finishes.
System.Threading.Thread.Sleep(3000);
var traces = _workflow.GetTraceForWorkflow(new[] { Guid.Parse(request.OldWorkflowId) })
.Where(t => t.Action == ActionTrace.TaskCompleted.ToString());
foreach (var trace in traces)
{
var task = _task.GetNextTasksForWorkflow(Guid.Parse(startWorkflowResponse.WorkflowId))
.Where(t => t.TaskCode == trace.Code)
.FirstOrDefault();
if (task != null)
{
ApproveTask(new ApproveTaskRequest
{
TaskId = task.TaskOid.ToString(),
CorrelationId = task.TaskCorrelationId,
Result = trace.Result,
TaskCode = trace.Code,
WorkflowId = task.WorkflowOid.ToString()
});
}
}
}
#endif
return(new ReStartWorkflowResponse
{
WorkflowId = startWorkflowResponse.WorkflowId,
Message = Library.Properties.Resources.SUCCESS_RESULT
});
}