package org.argeo.people.ui.exports;
   
   import static org.argeo.eclipse.ui.EclipseUiUtils.notEmpty;
   
   import javax.jcr.Node;
   import javax.jcr.Property;
   import javax.jcr.RepositoryException;
   
   import org.apache.commons.logging.Log;
  import org.apache.commons.logging.LogFactory;
  import org.argeo.connect.util.ConnectJcrUtils;
  import org.argeo.eclipse.ui.EclipseUiUtils;
  import org.argeo.people.PeopleException;
  import org.argeo.people.PeopleNames;
  import org.argeo.people.PeopleService;
  import org.argeo.people.PeopleTypes;
  import org.argeo.people.util.PeopleJcrUtils;
  import org.eclipse.jface.viewers.ColumnLabelProvider;
  
  /**
   * Enable simple retrieval of primary organisation name for persons.
   * 
   * The requested primary organisation name is the one of the organisation linked
   * with the primary address if such exists and is a work address. See v0.4
   * specification for more info
   */
  public class PrimOrgNameLP extends ColumnLabelProvider {
  	private final static Log log = LogFactory.getLog(PrimOrgNameLP.class);
  	private static final long serialVersionUID = 1L;
  
  	private PeopleService peopleService;
  	private String selectorName;
  
  	public PrimOrgNameLP(PeopleService peopleService, String selectorName) {
  		this.peopleService = peopleService;
  		if (notEmpty(selectorName))
  			this.selectorName = selectorName;
  	}
  
  	@Override
  	public String getText(Object element) {
  		Node currNode = ConnectJcrUtils.getNodeFromElement(element, selectorName);
  		try {
  			Node currContact = PeopleJcrUtils.getPrimaryContact(currNode, PeopleTypes.PEOPLE_POSTAL_ADDRESS);
  			// Sanity check
  			if (currContact == null || !currContact.isNodeType(PeopleTypes.PEOPLE_CONTACT_REF))
  				return "";
  
  			String refUid = ConnectJcrUtils.get(currContact, PeopleNames.PEOPLE_REF_UID);
  			if (EclipseUiUtils.isEmpty(refUid)) {
  				log.error("Empty UID: unable to get linked contact for " + currNode
  						+ "\nThis usually happens when legacy " + "imported address are not correctly defined");
  				return null;
  			}
  			Node referencedEntity = peopleService.getEntityByUid(ConnectJcrUtils.getSession(currContact), null, refUid);
  			if (referencedEntity == null)
  				return "";
  			return ConnectJcrUtils.get(referencedEntity, Property.JCR_TITLE);
  		} catch (RepositoryException re) {
  			throw new PeopleException("Unable to get primary org name from row " + element, re);
  		}
  	}
  }