package org.andromda.metafacades.emf.uml22;
   
   import java.util.List;
   import org.apache.commons.lang.StringUtils;
   import org.apache.log4j.Logger;
   import org.eclipse.uml2.uml.DirectedRelationship;
   import org.eclipse.uml2.uml.Element;
   
   /**
   * MetafacadeLogic implementation for
   * org.andromda.metafacades.uml.DependencyFacade.
   *
   * @see org.andromda.metafacades.uml.DependencyFacade
   */
  public class DependencyFacadeLogicImpl
      extends DependencyFacadeLogic
  {
      private static final long serialVersionUID = 34L;
      /**
       * @param metaObject
       * @param context
       */
      public DependencyFacadeLogicImpl(
          final DirectedRelationship metaObject,
          final String context)
      {
          super(metaObject, context);
      }
  
      /**
       * The logger instance.
       */
      private static final Logger LOGGER = Logger.getLogger(DependencyFacadeLogicImpl.class);
  
      /**
       * Gets the name in the following manner.
       * <ol>
       * <li>If the dependency has a name return it.</li>
       * <li>If the dependency does <strong>NOT </strong> have a name, get the
       * target element's and return its name uncapitalized.</li>
       * </ol>
       *
       * @see org.andromda.metafacades.uml.ModelElementFacade#getName()
       */
      @Override
      public String handleGetName()
      {
          String name = super.handleGetName();
          if (StringUtils.isBlank(name) && this.getTargetElement() != null)
          {
              name = StringUtils.uncapitalize(this.getTargetElement().getName());
          }
          return name;
      }
  
      /**
       * @see org.andromda.metafacades.uml.DependencyFacade#getGetterName()
       */
      @Override
      protected String handleGetGetterName()
      {
          return "get" + StringUtils.capitalize(this.handleGetName());
      }
  
      /**
       * @see org.andromda.metafacades.uml.DependencyFacade#getSetterName()
       */
      @Override
      protected String handleGetSetterName()
      {
          return "set" + StringUtils.capitalize(this.handleGetName());
      }
  
      /**
       * @see org.andromda.metafacades.uml.DependencyFacade#getTargetElement()
       */
      @Override
      protected Object handleGetTargetElement()
      {
          Object transform = null;
          final List<Element> elist = this.metaObject.getTargets();
          if (elist == null || elist.isEmpty())
          {
              DependencyFacadeLogicImpl.LOGGER.error("DependencyFacade has no targets: " + this.metaObject.getSources().toString());
          }
          else
          {
              transform = UmlUtilities.ELEMENT_TRANSFORMER.transform(this.metaObject.getTargets().toArray()[0]);
          }
          return transform;
      }
  
      /**
       * @see org.andromda.metafacades.uml.DependencyFacade#getSourceElement()
       */
      @Override
      protected Object handleGetSourceElement()
      {
          return UmlUtilities.ELEMENT_TRANSFORMER.transform(this.metaObject.getSources().toArray()[0]);
     }
 }