package org.richfaces.bootstrap.demo.capitals;
import javax.faces.FacesException;
import javax.faces.bean.ApplicationScoped;
import javax.faces.bean.ManagedBean;
import javax.xml.bind.JAXBContext;
import javax.xml.bind.JAXBException;
import javax.xml.bind.annotation.XmlElement;
import javax.xml.bind.annotation.XmlRootElement;
import java.net.URL;
import java.util.List;
@ManagedBean
@ApplicationScoped
public class CapitalsParser {
private List<Capital> capitalsList;
@XmlRootElement(name = "capitals")
private static final class CapitalsHolder {
private List<Capital> capitals;
@XmlElement(name = "capital")
public List<Capital> getCapitals() {
return capitals;
}
@SuppressWarnings("unused")
public void setCapitals(List<Capital> capitals) {
this.capitals = capitals;
}
}
public synchronized List<Capital> getCapitalsList() {
if (capitalsList == null) {
ClassLoader ccl = Thread.currentThread().getContextClassLoader();
URL resource = ccl.getResource("org/richfaces/demo/data/capitals/capitals.xml");
JAXBContext context;
try {
context = JAXBContext.newInstance(CapitalsHolder.class);
CapitalsHolder capitalsHolder = (CapitalsHolder) context.createUnmarshaller().unmarshal(resource);
capitalsList = capitalsHolder.getCapitals();
} catch (JAXBException e) {
throw new FacesException(e.getMessage(), e);
}
}
return capitalsList;
}
}