## Keeping steps in sync of long running process and creating common layer for code repetition

I have 1 long running process wrapped inside a method and it is for 2 different types like below:

• Type1
• Type2

Code:

public interface IBaseType     {         MyResult LongRunningProcess(int jobId,int noOfTimes); //doenst save long running process data in database.just returns the results to consumer         void LongRunningProcess(int noOfTimes); //Save results of long running process in database.Background job with on-demand as well as scheduled     }  public class Type1 : IBaseType {     public void LongRunningProcess(int jobId,int noOfTimes)     {         try         {            //Step1 :             var type1Manager =  new Type1Manager(params);            for (int i = 0; i < noOfTimes; i++)                {                  var con = ConnectionFactory.OpenConnection();                  type1Manager.Start(con);                 //Save results of those processing             }            //Step2:           IVersioning versioning = new Versioning();           string version = versioning.GetVersion();           using (connection = new SqlConnection(connectionString))           {                connection.Open();                using (var transaction = connection.BeginTransaction())                {                   try                   {                      Repository.UpdateVariantVersioning(connection, transaction,jobId, version);                      Repository.UpdateCategoryWithVersion(connection, transaction,versioning.Category,version);                      transaction.Commit();                   }                   catch(Exception ex)                   {                        transaction.Rollback();                        //code to delete everything that has been performed in step1                        throw ex;                   }                 }             }         }         catch (Exception ex)         {             Repository.UpdateErrorDetails(connectionString,jobId,ex.Message);         }          //Step3 : if step1 and step2 successfull than mark this job as succeeded else failed         // Updating time of whole process in table     }  }      public class Type2 : IBaseType {     public void LongRunningProcess(int jobId,int noOfTimes)     {         try         {            //Step1 :              var type2Manager =  new Type2Manager(params);             for (int i = 0; i < noOfTimes; i++)                {                  var con = ConnectionFactory.OpenConnection();                  type2Manager.Start(con);                 //Save results of those processing             }            //Step2:           IVersioning versioning = new Versioning();           string version = versioning.GetVersion();           using (connection = new SqlConnection(connectionString))           {                connection.Open();                using (var transaction = connection.BeginTransaction())                {                   try                   {                      Repository.UpdateVariantVersioning(connection, transaction,jobId, version);                      Repository.UpdateCategoryWithVersion(connection, transaction,versioning.Category,version);                      transaction.Commit();                   }                   catch(Exception ex)                   {                        transaction.Rollback();                        //code to delete everything that has been performed in step1                        throw ex;                   }                 }             }         }         catch (Exception ex)         {             Repository.UpdateErrorDetails(connectionString,jobId,ex.Message);         }          //Step3 : if step1 and step2 successfull than mark this job as succeeded else failed         // Updating time of whole process in table     }  } 

So as you can see here that step2 and step3 code are getting repeated for both types so I want to this code repetition.

Secondly I want to keep step1 and step2 in sync so that when step2 fails, then rollback whatever has been done inside the entire step1 process.

I am a bit confused with moving versioning in base abstract class because that would probably be tightly coupled with this long running process. I want to design it in a way that tomorrow if I think of removing versioning then it should not hamper my current design and code.

interface IVersion {     string CreateVersion(); }  Public class Version : IVersion {      public string Category { get; private set; } } 

## Does any algorithm exist for computing the state of a non-trivial cellular automaton after an arbitrary number of time steps?

If have a cellular automaton, can I see the state of the board after something like $$10^{{10}^{10}}$$ time steps? For trivial cases, this is possible – for example, a cellular automaton where the board repeats after some finite period.

But are there any cellular automata (or perhaps even similar computational structures) that display chaotic behavior but can also be very quickly evaluated to extreme time steps into the future?

## My first time in emergency mode. Don’t know what to do. Steps to debug

Hello yesterday I was happy because I installed a second drive myself without annoying the people in this forum.

All was working good. Today I turned on my PC and it was in emergency mode. I don’t know why…

What are the steps to Debug and to know whats happening in my case.

I run Kubuntu 19.04. (ONLY – no other system)

1 SSD & 1 HDD

Something I’ve done is typing

nano /etc/fstab 
 #file system mount point type options dump pass #was on /dev/sda1 during installation  UID=49cc34c5-f01e-4ee0-929d-ef4f06c515be  / ext4 errors=remount-ro       0     1 /swapfile none swap SW 0 0  /dev/sdc1  /HDD  ext4  defaults 0 0 

Thank you

## Set of steps that cannot be implemented on a Turing machine

Is there an example of a “set of steps” that we thought was an algorithm, but later was shown not to be an algorithm because it could not be implemented on a Turing machine?

## Are tabs and/or steps in a wizard displayed as separate boxes in a sitemap diagram?

I’m creating a sitemap for an enterprise application.

For one section in the application, there is an edit calendar feature. Once clicked on, there are three sections/or different types of calendars to set up.

1. Start/end dates for the entire project
2. Blocked-out dates (holidays and nonworking days, etc.)
3. Start/end dates for specific tasks within the project

We currently use a step wizard to edit the calendar so the user has to set up the dates in that order.

In my sitemap, do I draw out each step as a separate box, or would that go in a separate user flow diagram?

## Number of steps – Count Change Procedure

I don’t know if this is dupp question, i’ve already seen some explanations on why the procedure below is equal to $$\theta(n^d)$$ in terms of time complexity, being $$d$$ the number of coins. My question here resides on the exact number of steps required by this procedure when, e.g, $$d=2$$.

Being known that for $$d=1$$, the number of subtrees generated is equal to $$(2n+1)$$ and that for $$d=2$$, (cc n 2) initially generates two subtrees, (cc n 1) and (cc n-d 2). To get the total number of steps, I know that we have $$1 + (n/5) + (..)$$. I’m with doubts as how I can express the rest of the expression, more precisely the number of subtrees generated by (cc n 2) with 1 coin as they are subtracted, until it reaches the limit $$(n/5)$$, being $$5$$ the denomination of the coin when there are two types of coins available.

 (define (count-change amount)    (define (cc amount kinds-of-coins)      (cond ((= amount 0) 1)            ((or (< amount 0) (= kinds-of-coins 0)) 0)            (else (+ (cc (- amount                            (first-denomination kinds-of-coins))                         kinds-of-coins)                     (cc amount                         (- kinds-of-coins 1))))))    (define (first-denomination kinds-of-coins)      (cond ((= kinds-of-coins 1) 1)            ((= kinds-of-coins 2) 5)            ((= kinds-of-coins 3) 10)            ((= kinds-of-coins 4) 25)            ((= kinds-of-coins 5) 50)))    (cc amount 5)) 

Can anyone help? Thank you in advance.

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What am I doing wrong ?!! Thanks so much for your help