Pass File name to spring bath job from servlet on demand basis

[arno]

looks like the exception comes from your own code (SeparatorCompositeItemWriter class). What are you doing in this class? Don't forget you can't manipulate the delegates with their class names, as they're step-scoped proxies (i.e. don't cast the delegates as FileFileItemWriter).

[Rams]

looks like the exception comes from your own code (SeparatorCompositeItemWriter class). What are you doing in this class? Don't forget you can't manipulate the delegates with their class names, as they're step-scoped proxies (i.e. don't cast the delegates as FileFileItemWriter).

Hi arno,

I am doing separation of the files based on careerLength condition.

@SuppressWarnings("unchecked")
public class SeparatorCompositeItemWriter implements ItemWriter 
{
 
private List delegates;
 
public void setDelegates(ItemWriter[] delegates) {
this.delegates = Arrays.asList(delegates);
}
 
public void write(List items) throws Exception 
{
FlatFileItemWriter write1 = (FlatFileItemWriter)delegates.get(0);
FlatFileItemWriter write2 = (FlatFileItemWriter)delegates.get(1);
 
List file1Items = new ArrayList<Player>();
List file2Items = new ArrayList<Player>();
 
for(Object player: items)
{
Player pl = (Player)player;
if(pl.getCareerLength()< 25 ) file1Items.add(player);
else file2Items.add(player);
}
 
write1.write(file1Items);
write2.write(file2Items);
}
}

actaully this file going smoothly before the multiple fine name change. But now its showing error ? what is wrong in this file? Can you please help on this.

[arno]

ok, so you're doing exactly what I mentioned in my previous post:

FlatFileItemWriter write1 = (FlatFileItemWriter)delegates.get(0);
FlatFileItemWriter write2 = (FlatFileItemWriter)delegates.get(1);

First, it can't work because the delegates are proxies (they're step-scoped). Second, you don't need to do that. Do it this way:

ItemWriter write1 = (ItemWriter)delegates.get(0);
ItemWriter write2 = (ItemWriter)delegates.get(1);

so try to make it work and then we'll see how to use generics.

[Rams]

Hi Arno,

Greatful thanks to you arno.
So nice of you!. Your ideas help's me a lot.

Actually, while processing a input csv file, - for each record/row in the csv file - can we validate it against a DB table, before pushing it to DB.

Regards,
Rams