2.9. Configuring Fixed-Length Records

  1. To bind fixed-length records to a person, see the configuration below. In this example we will use these sample records: 
    Tom Fennelly   M 21 IE
Maurice Zeijen M 27 NL
    This is how you bind them to a person: 
    public class Person {
    private String firstname;
    private String lastname;
    private String country;
    private String gender;
    private int age;
}
  2. Configure the records so they look like this: 
    <?xml version="1.0"?>
<smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd"  xmlns:fl="http://www.milyn.org/xsd/smooks/fixed-length-1.3.xsd">
 
    <fl:reader fields="firstname[10]?trim,lastname[10]?trim,gender[1],age[3]?trim,country[2]">
        <!-- Note how the field names match the property names on the Person class. -->
        <fl:listBinding BeanId="people" class="org.milyn.fixedlength.Person" />
    </fl:reader>
 
</smooks-resource-list>
  3. Execute it as shown: 
    Smooks smooks = new Smooks(configStream);
JavaResult result = new JavaResult();
 
smooks.filterSource(new StreamSource(fixedLengthStream), result);
 
List<Person> people = (List<Person>) result.getBean("people");
  4. Optionally, use this configuration to create maps from the fixed-length record set: 
    <?xml version="1.0"?>
<smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd"  xmlns:fl="http://www.milyn.org/xsd/smooks/fixed-length-1.3.xsd">
 
    <fl:reader fields="firstname[10]?trim,lastname[10]?trim,gender[1],age[3]?trim,country[2]">
        <fl:mapBinding BeanId="people" class="org.milyn.fixedlength.Person" keyField="firstname" />
    </fl:reader>
        
</smooks-resource-list>
  5. This is how you execute the map of person instances that is produced: 
    Smooks smooks = new Smooks(configStream);
JavaResult result = new JavaResult();
 
smooks.filterSource(new StreamSource(fixedLengthStream), result);
 
Map<String, Person> people = (Map<String, Person>) result.getBean("people");
 
Person tom = people.get("Tom");
Person mike = people.get("Maurice");
    Virtual Models are also supported, so you can define the class attribute as a java.util.Map and bind the fixed-length field values to map instances, which are in turn added to a list or a map.