Spring Batch - Write multiple files based on records count

Question

In spring batch, I have an requirement to read from the database and to write in a file, The no of rows allowed in a file is N, so if N+10 records are fetched then two files should be created containing N rows and 10 rows respectively.

Can someone please help me with the writer implementation? Is there any other easy way of doing it? Thanks.

Currently am trying in a separate tasklet by passing the object list and traversing the list and creating files. I want to know how to achieve this through spring writer itself.. — user1919581
– user1919581, Commented May 7, 2015 at 6:24

Karthik Prasad · Accepted Answer · 2015-05-07 07:35:28Z

1

Spring batch has MultiResourceItemWriter were you can write based on number of lines

<bean id="multiWriter"
        class="org.springframework.batch.item.file.MultiResourceItemWriter">
        <property name="delegate" ref="flatFileItemWriter" />
        <property name="itemCountLimitPerResource" value="3" />
        <property name="resource" value="file:c:/logs/te" />
</bean>

answered May 7, 2015 at 7:35

Karthik Prasad

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1 Comment

Karthik Prasad Over a year ago

For each file? The files generated in the above case would be te.1, te.2 etc. you can pass the file name as argument for spring properties or from SB Jobparameter, <property name="resource" value="file:${filelocation}" />

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