Number of lines read with Spring Batch ItemReader - csv

Question

I am using SpringBatch to write a csv-file to the database. This works just fine.
I am using a FlatFileItemReader and a custom ItemWriter. I am using no processor.
The import takes quite some time and on the UI you don't see any progress. I implemented a progress bar and got some global properties where i can store some information (like lines to read or current import index).
My question is: How can i get the number of lines from the csv?
Here's my xml:
<batch:job id="importPersonsJob" job-repository="jobRepository">
<batch:step id="importPersonStep">
<batch:tasklet transaction-manager="transactionManager">
<batch:chunk reader="personItemReader"
writer="personItemWriter"
commit-interval="5"
skip-limit="10">
<batch:skippable-exception-classes>
<batch:include class="java.lang.Throwable"/>
</batch:skippable-exception-classes>
</batch:chunk>
<batch:listeners>
<batch:listener ref="skipListener"/>
<batch:listener ref="chunkListener"/>
</batch:listeners>
</batch:tasklet>
</batch:step>
<batch:listeners>
<batch:listener ref="authenticationJobListener"/>
<batch:listener ref="afterJobListener"/>
</batch:listeners>
</batch:job>
I already tried to use the ItemReadListener Interface, but this isn't possible as well.

Answer 1

if you need to know how many lines where read, it's available in spring batch itself,
take a look at the StepExecution
The method getReadCount() should give you the number you are looking for.
You need to add a step execution listener to your step in your xml configuration. To do that (copy/pasted from spring documentation):
<step id="step1">
<tasklet>
<chunk reader="reader" writer="writer" commit-interval="10"/>
<listeners>
<listener ref="chunkListener"/>
</listeners>
</tasklet>
</step>
where "chunkListner" is a bean of yours annotated with a method annotated with #AfterStep to tell spring batch to call it after your step.
you should take a look at the spring reference for step configuration
Hope that helps,