Get file name from readMultiFileJob in Spring Batch - spring

Question

The following is my Spring Batch processing config file, i am reading multiple files (xml, csv etc), the files generate dynamically with time stamp as suffix i can read file's data and process, now the Question is,
i would like know the file name.
How to get file name when job is processing.
<import resource="../config/context.xml" />
<bean id="domain" class="com.di.pos.Domain" />
<job id="readMultiFileJob" xmlns="http://www.springframework.org/schema/batch">
<step id="step1">
<tasklet>
<chunk reader="multiResourceReader" writer="flatFileItemWriter"
commit-interval="1" />
</tasklet>
</step>
</job>
<bean id="multiResourceReader"
class=" org.springframework.batch.item.file.MultiResourceItemReader">
<property name="resources" value="file:csv/inputs/dipos-*.csv" />
<property name="delegate" ref="flatFileItemReader" />
</bean>
<bean id="flatFileItemReader" class="org.springframework.batch.item.file.FlatFileItemReader">
<property name="lineMapper">
<bean class="org.springframework.batch.item.file.mapping.DefaultLineMapper">
<property name="lineTokenizer">
<bean
class="org.springframework.batch.item.file.transform.DelimitedLineTokenizer">
<property name="names" value="id, name" />
</bean>
</property>
<property name="fieldSetMapper">
<bean
class="org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper">
<property name="prototypeBeanName" value="domain" />
</bean>
</property>
</bean>
</property>
</bean>

Answer 1

Create a custom Mapper which extends LineMapper.
Override mapLine() method
public FileData mapLine(String line, int lineNumber) throws Exception {
FileData fileData = new FileData();
Resource currentResource = delegator.getCurrentResource();
String[] fileName = currentResource.getFilename().split("/");
//Use this to access file path
URI fileUri = currentResource.getURI();
return fileData;
}