Package ru.portnyagin.helpdeskru.converter

Source Code of ru.portnyagin.helpdeskru.converter.RoleConverter

/**
*
* @author ilya portnyagin iportnyagin@gmail.com
*/

package ru.portnyagin.helpdeskru.converter;

import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.ConverterException;
import javax.faces.convert.FacesConverter;
import ru.portnyagin.helpdeskru.model.Role;
import ru.portnyagin.helpdeskru.service.RoleService;
import ru.portnyagin.helpdeskru.util.EJB;

   
   
@FacesConverter(forClass = Role.class)
public class RoleConverter implements Converter {
   
    private RoleService roleService = EJB.lookup(RoleService.class);
   
    @Override
    public Object getAsObject(FacesContext context, UIComponent component, String value) {
        if (value == null || value.length() == 0){
            return null;
        }

        Role role = roleService.find(Long.valueOf(value));

        if (role == null) {
            throw new ConverterException(new FacesMessage("Unknown Role ID: " + value));
        }

        return role;
    }
   
   
    @Override
    public String getAsString(FacesContext context, UIComponent component, Object value) {
        if (!(value instanceof Role) || ((Role) value).getId() == null) {
            return null;
        }

        return ((Role) value).getName().toString();
    }
   
   
   
   
   
}
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