OrderToCsvProcessor.java

package camelinaction;

import org.apache.camel.Exchange;
import org.apache.camel.Processor;

/**
 * A processor which translates an order in custom inhouse format
 * to a CSV format
 */
public class OrderToCsvProcessor implements Processor {

    public void process(Exchange exchange) throws Exception {
        String custom = exchange.getIn().getBody(String.class);

        String id = custom.substring(0, 10);
        String customerId = custom.substring(10, 20);
        String date = custom.substring(20, 30);
        String items = custom.substring(30);
        String[] itemIds = items.split("@");

        StringBuilder csv = new StringBuilder();
        csv.append(id.trim());
        csv.append(",").append(date.trim());
        csv.append(",").append(customerId.trim());
        for (String item : itemIds) {
            csv.append(",").append(item.trim());
        }

        exchange.getIn().setBody(csv.toString());
    }

}