/**
  * Retrieves all the connectors between subcomponents inside a given component model. (does not
  * retrieve connectors between component model boundaries and subcomponents inside the model).
  */
 public static List<org.eclipse.uml2.uml.Connector> getInternalConnectors(
     org.eclipse.uml2.uml.Class c) {
   LinkedList<org.eclipse.uml2.uml.Connector> connectors =
       new LinkedList<org.eclipse.uml2.uml.Connector>();
   for (Connector conn : c.getOwnedConnectors()) {
     if (conn.getEnds().size() >= 2
         && (conn.getEnds().get(0).getPartWithPort() != null)
         && (conn.getEnds().get(1).getPartWithPort() != null)) {
       connectors.add(conn);
     }
   }
   return connectors;
 }
 /**
  * Retrieves all the connectors between subcomponents that are inside the component model and the
  * component model outputs. (does not retrieve connectors between subcomponents inside the
  * component model, nor connectors from component model inputs to subcomponents).
  */
 public static List<org.eclipse.uml2.uml.Connector> getExternalOutputConnectors(
     org.eclipse.uml2.uml.Class c) {
   LinkedList<org.eclipse.uml2.uml.Connector> connectors =
       new LinkedList<org.eclipse.uml2.uml.Connector>();
   for (Connector conn : c.getOwnedConnectors()) {
     if (conn.getEnds().size() >= 2) { // && (conn.getEnds().get(0).getPartWithPort() != null)) {
       if (conn.getEnds().get(0).getRole() instanceof Port
           && conn.getEnds().get(1).getRole() instanceof Port) {
         Port port_1 = (Port) conn.getEnds().get(0).getRole();
         Port port_2 = (Port) conn.getEnds().get(1).getRole();
         if ((isAnOutputPort(port_1) && conn.getEnds().get(0).getPartWithPort() == null)
             || (isAnOutputPort(port_2) && conn.getEnds().get(1).getPartWithPort() == null)) {
           connectors.add(conn);
         }
       }
     }
   }
   return connectors;
 }
 /** @TOOD: author to add some doc. */
 public static Boolean definesConnections(org.eclipse.uml2.uml.Class cl) {
   return cl.getOwnedConnectors().size() > 0;
 }