/**
* If the argument is true, make the port an output port. If the argument is false, make the port
* not an output port. In addition, if the container is an instance of Refinement, and the
* argument is true, find the corresponding port of the controller and make it an input and not an
* output. This makes it possible for the controller to see the outputs of the refinements. This
* method overrides the base class to make the same change on the mirror ports in the controller
* and state refinments. This method invalidates the schedule and resolved types of the director
* of the container, if there is one. It is write-synchronized on the workspace, and increments
* the version of the workspace.
*
* @param isOutput True to make the port an output.
* @exception IllegalActionException If changing the port status is not permitted.
*/
public void setOutput(boolean isOutput) throws IllegalActionException {
boolean disableStatus = _mirrorDisable;
// check first that this isn't an input sibling port,
// if it is then it *cannot* be set as an output too
if (_hasSibling && isInput() && !isOutput()) {
if (isOutput) {
throw new InternalErrorException(
"TransitionRefinementPort.setOutput:"
+ " cannot set input sibling port to be an output");
} else {
return;
}
}
try {
_workspace.getWriteAccess();
if (_mirrorDisable || (getContainer() == null)) {
// Have already called the super class.
// This time, process the request.
super.setOutput(isOutput);
// now create a sibling if we
// don't otherwise have one
if (!_hasSibling && isOutput) {
try {
TransitionRefinement container = (TransitionRefinement) getContainer();
TransitionRefinementPort sibling =
new TransitionRefinementPort(container, getName() + "_in");
sibling._hasSibling = true;
sibling._mirrorDisable = true;
// set attributes of sibling
sibling.setInput(true);
sibling.setMultiport(isMultiport());
sibling._mirrorDisable = false;
// link the port relation should already exist
// from this port's creation in newPort()
String relationName = getName() + "Relation";
ModalModel model = (ModalModel) container.getContainer();
Relation relation = model.getRelation(relationName);
if (relation != null) {
sibling.link(relation);
}
_hasSibling = true;
} catch (IllegalActionException ex) {
throw new InternalErrorException(
"TransitionRefinementPort.setOutput: Internal error: " + ex.getMessage());
} catch (NameDuplicationException ex) {
throw new InternalErrorException(
"TransitionRefinementPort.setOutput: Internal error: " + ex.getMessage());
}
}
} else {
_mirrorDisable = true;
boolean success = false;
Nameable container = getContainer();
if (container != null) {
Nameable modal = container.getContainer();
if (modal instanceof ModalModel) {
Port port = ((ModalModel) modal).getPort(getName());
if (port instanceof IOPort) {
((IOPort) port).setOutput(isOutput);
success = true;
}
}
}
if (!success) {
super.setOutput(isOutput);
}
}
} finally {
_mirrorDisable = disableStatus;
_workspace.doneWriting();
}
}
