Spring batch generating reports - spring-batch

Question

I would like to generate a summary report at the end of my batch execution.
For ex: I have an ItemProcessor which receives accountId.
for every accountId:
get MarketplaceId's
for every marketplaceId:
call real time availability
At the end of batch execution I need to provide a nice summary in a file that shows,
Number of accounts processed
Number of marketplaceIds for each accoutId
Number of marketplaceIds that failed to get real time availability
Time took for processing one accountId
Question
Where do I persist those intermediate results ie. the different count on each iteration
How would I get those counts to the next step which is just a summary file writer
Would be really great if you provide any directions.
Thanks.

Answer 1

write a tasklet to prepare a nice summery and put that tasklet as last step in the Job
<step id="summeryFile" >
<tasklet ref="summaryFilePreparationTasklet"/>
</step>
and Bean Configuration is
<bean id="summaryFilePreparationTasklet" class="com.baji.batch.SummaryPreparationFile">
and Class file is
package com.baji.batch;
import org.springframework.batch.core.StepContribution;
import org.springframework.batch.core.scope.context.ChunkContext;
import org.springframework.batch.core.step.tasklet.Tasklet;
import org.springframework.batch.repeat.RepeatStatus;
/**
* #Author
* Bhaji Shaik
* May 30, 2015
*/
public class SummaryPreparationFile implements Tasklet {
#Autowired
private Holder holder;
#Override
public RepeatStatus execute(StepContribution arg0, ChunkContext chunkContext) throws Exception {
holder.getResults1();
//Write your own code to Prepare a neat summary preparation File
return null;
}
}
Holder Class is
import org.springframework.stereotype.Component;
#Component
public class Holder {
private List<Integer> results1;
private List<Integer> results2;
//Setter and getter methods
}