my.sandbox.spring.batch.demo.readers.ProductReader.java Source code

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Here is the source code for my.sandbox.spring.batch.demo.readers.ProductReader.java

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package my.sandbox.spring.batch.demo.readers;

import my.sandbox.spring.batch.demo.model.Product;
import org.springframework.batch.item.file.FlatFileItemReader;
import org.springframework.batch.item.file.mapping.BeanWrapperFieldSetMapper;
import org.springframework.batch.item.file.mapping.DefaultLineMapper;
import org.springframework.batch.item.file.transform.DelimitedLineTokenizer;
import org.springframework.core.io.FileSystemResource;

/**
 *
 * @author hilel
 */
public class ProductReader extends FlatFileItemReader {

    public void setInputFile(String inputFile) {
        setResource(new FileSystemResource(inputFile));
    }

    public ProductReader() {

        DelimitedLineTokenizer tokenizer = new DelimitedLineTokenizer();
        tokenizer.setNames(new String[] { "description", "price", "purchaseDate" });
        tokenizer.setDelimiter(DelimitedLineTokenizer.DELIMITER_TAB);

        BeanWrapperFieldSetMapper<Product> mapper = new BeanWrapperFieldSetMapper<>();
        mapper.setTargetType(Product.class);

        DefaultLineMapper<Product> defaultLineMapper = new DefaultLineMapper<>();

        defaultLineMapper.setLineTokenizer(tokenizer);
        defaultLineMapper.setFieldSetMapper(mapper);

        setLineMapper(defaultLineMapper);
    }
}