package yarfraw.mapping.backward.impl;

 import java.util.List;

 import javax.xml.bind.JAXBElement;

 import org.apache.commons.collections.CollectionUtils;

 import yarfraw.core.datamodel.Link;

 import yarfraw.core.datamodel.Person;

 import yarfraw.generated.rss10.elements.DcType;

 class Utils{

   private Utils(){}

   @SuppressWarnings("unchecked")

   public static String getDcTypeText(JAXBElement<?> dcType) {

     return dcType == null ? null : ((JAXBElement<DcType>)dcType).getValue().getValue();

   }

   /**

    * Gets the <code>emailOrText</code> field of the first person in the input list.

    * @param persons

    * @return

    */

   public static String getEmailOrText(List<Person> persons){

     String ret = null;

     if(CollectionUtils.isNotEmpty(persons)){

       Person p = persons.get(0);

       ret = p == null ? null : p.getEmailOrText();

     }

     return ret;

   }

   /**

    * Gets the <code>href</code> field of the first link in the input list.

    * @param links

    * @return

    */

   public static String getHrefLink(List<Link> links){

     String ret = null;

     if(CollectionUtils.isNotEmpty(links)){

       Link l = links.get(0);

       ret = l == null ? null : l.getHref();

     }

     return ret;

   }

 }