Criação de um data provider

Implementação de um data provider definido em Groovy para que o source seja populado através de uma fonte externa.

import java.util.List;
 
import lumis.doui.source.IDataProvider;
import lumis.doui.source.TabularData;
import lumis.doui.source.TabularSource;
import lumis.doui.source.field.ITabularSourceField;
import lumis.portal.PortalException;
import lumis.portal.authentication.SessionConfig;
import lumis.portal.manager.ManagerFactory;
import lumis.portal.serviceinstance.ServiceInstanceConfig;
import lumis.portal.user.UserConfig;
import lumis.util.ITransaction;
 
public class SampleDataProvider implements IDataProvider<TabularSource<ITabularSourceField>> {
   private String serviceNameFieldId = "serviceName";
   private String serviceDescriptionFieldId = "serviceDescription";
 
   private String userLoginFieldId = "userLogin";
   private String userFirstNameFieldId = "userFirstName";
   private String userEmailFieldId = "userEmail";
   private String userLastLoginFieldId = "userLastLogin";
 
   private String userGroupsFieldId = "userGroups";
 
   private String extraFieldFieldId = "extraField";
 
   public void loadData(SessionConfig sessionConfig, TabularSource<ITabularSourceField> source,
         ITransaction transaction) throws PortalException {
      // Guarda as configurações da instancia de serviço envolvida no processo
      ServiceInstanceConfig serviceInstanceConfig = source.getDouiContext().getRequest().getServiceInstanceConfig();
 
      // Guarda as configurações do usuário que solicitou a instancia de
      // serviço
      UserConfig userConfig = ManagerFactory.getUserManager().get(sessionConfig, sessionConfig.getUserId(),
            transaction);
 
      // Guarda em um vetor de strings a lista de grupos que o usuário
      // pertence.
      String[] userGroupsArray = ManagerFactory.getGroupManager()
            .getMemberGroups(sessionConfig, userConfig.getId(), false, transaction)
            .toArray(new java.lang.String[0]);
 
      String userGroups = "";
 
      if (userGroupsArray.length > 0)
         userGroups += userGroupsArray[0];
 
      for (int i = 1; i < userGroupsArray.length; i++) {
         userGroups += ", " + userGroupsArray[i];
      }
 
      // Pega os dados existentes no source
      TabularData sourceData = source.getData();
 
      // Pega os campos existentes no source
      List<ITabularSourceField> fields = source.getFields();
 
      for (int i = 0; i < fields.size(); i++) {
         ITabularSourceField field = fields.get(i);
 
         if (field.getId() == serviceNameFieldId)
            sourceData.put(serviceNameFieldId, serviceInstanceConfig.getName());
         else if (field.getId() == serviceDescriptionFieldId)
            sourceData.put(serviceDescriptionFieldId, serviceInstanceConfig.getDescription());
 
         else if (field.getId() == userLoginFieldId)
            sourceData.put(userLoginFieldId, userConfig.getLogin());
         else if (field.getId() == userFirstNameFieldId)
            sourceData.put(userFirstNameFieldId, userConfig.getFirstName());
         else if (field.getId() == userEmailFieldId)
            sourceData.put(userEmailFieldId, userConfig.getEmail());
         else if (field.getId() == userLastLoginFieldId)
            sourceData.put(userLastLoginFieldId, userConfig.getLastLogin());
 
         else if (field.getId() == userGroupsFieldId && userGroups.length() > 0)
            sourceData.put(userGroupsFieldId, userGroups);
 
         else if (field.getId() == extraFieldFieldId)
            sourceData.put(extraFieldFieldId, "Extra Field Value");
      }
   }
}