How to get Job Parameter?

Question

I am using Spring Batch version 2.1.8. The job context shown as below:

<job id="job1" restartable="true"  >
    <step id="step1">
        <tasklet>
            <chunk reader="reader" writer="writter" processor="processor"
                commit-interval="1" />
        </tasklet>
    </step>
    <validator ref="jobParameterValidator"></validator> 
</job>

The jobParamterValidator is to get the file name and do some validation on filename.

So my question is how can I get the fileName at processor="processor", because want to validate filename with data? Thanks.

score 3 · Answer 1 · edited May 23 '17 at 12:02

3

use #{jobParameters['fileName']}, but you need to mark your step with scope="step" else placeholder doesn't work.
You can read more at What are the Spring Batch "default" Context Variables?

edited May 23 '17 at 12:02

Community

1
1

answered Apr 28 '14 at 11:18

Luca Basso Ricci

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#{jobParameters['fileName']} is put at which context? itemReader or itemProccessor? Because my itemReader is like this – user1238353 Apr 30 '14 at 03:26
you are fine with definition posted in your comment – Luca Basso Ricci Apr 30 '14 at 06:19
How can i access the job parameter from Java coding site? Thanks – user1238353 Apr 30 '14 at 08:41
use `StepExecutionListener.beforeStep(StepExecution stepExecution)` and `stepExecution.getJobParameters()` – Luca Basso Ricci Apr 30 '14 at 08:51
Sorry i still cant get your point how to do it. My reader is like this : So how to access the fileName from "resource" in Java? – user1238353 May 02 '14 at 14:17
write a custom processor and inject #{jobParameters['fileName']} into. – Luca Basso Ricci May 02 '14 at 15:04
Yes I have testingLineMapper which will refer to custom class. I am use @Value("#{jobParameters['resource']}") private String resource; to inject. Unfortunately there is error occurs. – user1238353 May 02 '14 at 16:08

How to get Job Parameter?

1 Answers1