/**
* Return the change request to delete the given object.
*
* @param originator The originator of the change request.
* @param object The object to be deleted.
* @return The change request.
*/
public static MoMLChangeRequest getDeletionChangeRequest(Object originator, NamedObj object) {
String moml;
if (object instanceof Attribute) {
moml = "<deleteProperty name=\"" + object.getName() + "\"/>";
} else if (object instanceof Entity) {
moml = "<deleteEntity name=\"" + object.getName() + "\"/>";
} else if (object instanceof Port) {
moml = "<deletePort name=\"" + object.getName() + "\"/>";
} else if (object instanceof Relation) {
moml = "<deleteRelation name=\"" + object.getName() + "\"/>";
} else {
return null;
}
return new MoMLChangeRequest(originator, object.getContainer(), moml);
}
/** Refreshes the visual properties of the TreeItem for this part. */
protected void refreshVisuals() {
if (getWidget() instanceof Tree) return;
NamedObj model = getNamedObjectModel();
// Set Image
if (model instanceof Director)
setWidgetImage(DirectorEditPart.IMAGE_DESCRIPTOR_DIRECTOR, model);
else if (model instanceof Parameter)
setWidgetImage(ActorEditPart.IMAGE_DESCRIPTOR_PARAMETER, model);
else if (model instanceof IOPort) {
IOPort port = (IOPort) model;
if (port.isInput()) setWidgetImage(ActorEditPart.IMAGE_DESCRIPTOR_INPUTPORT, model);
else setWidgetImage(ActorEditPart.IMAGE_DESCRIPTOR_OUTPUTPORT, model);
} else if (model instanceof TypedAtomicActor) {
setWidgetImage(ActorEditPart.IMAGE_DESCRIPTOR_ACTOR, model);
} else if (model instanceof CompositeActor) {
setWidgetImage(PaletteBuilder.getInstance().getIcon(model.getClass()), model);
}
// Set Text
if (model instanceof Parameter) {
Parameter param = (Parameter) model;
String name = param.getName();
String value = param.getExpression();
setWidgetText(name + "=" + (value == null ? "" : value));
} else setWidgetText(model.getName());
}
/**
* Get the change request to update the object in the host model.
*
* @param pattern The pattern of the transformation rule.
* @param replacement The replacement of the transformation rule.
* @param matchResult The match result.
* @param patternObject The object in the pattern, or null.
* @param replacementObject The object in the replacement that corresponds to the object in the
* pattern.
* @param hostObject The object in the host model corresponding to the object in the replacement.
* @return The change request.
* @exception IllegalActionException If error occurs in generating the change request.
*/
@Override
public ChangeRequest getChangeRequest(
Pattern pattern,
Replacement replacement,
MatchResult matchResult,
NamedObj patternObject,
NamedObj replacementObject,
NamedObj hostObject)
throws IllegalActionException {
if (_valueParseTree == null) {
_reparse();
}
ParserScope scope = NamedObjVariable.getNamedObjVariable(hostObject, true).getParserScope();
GTParameter.Evaluator evaluator = new GTParameter.Evaluator(pattern, matchResult);
String name;
if (_valueParseTree instanceof ASTPtSumNode) {
StringBuffer buffer = new StringBuffer();
for (int i = 0; i < _valueParseTree.jjtGetNumChildren(); i++) {
ASTPtRootNode child = (ASTPtRootNode) _valueParseTree.jjtGetChild(i);
if (!(child.isConstant() && child.getToken() instanceof StringToken)) {
ASTPtLeafNode newNode = _evaluate(child, evaluator, scope);
buffer.append(_parseTreeWriter.parseTreeToExpression(newNode));
} else {
buffer.append(((StringToken) child.getToken()).stringValue());
}
}
name = buffer.toString();
} else if (!(_valueParseTree.isConstant()
&& _valueParseTree.getToken() instanceof StringToken)) {
ASTPtRootNode newRoot = _evaluate(_valueParseTree, evaluator, scope);
name = _parseTreeWriter.parseTreeToExpression(newRoot);
} else {
name = _name.get();
}
NamedObj parent = hostObject.getContainer();
String moml =
"<entity name=\"" + hostObject.getName() + "\"><rename name=\"" + name + "\"/></entity>";
return new MoMLChangeRequest(this, parent, moml, null);
}
/**
* Description of the Method
*
* @exception IllegalActionException Description of the Exception
*/
private void buildResultTree(EntityLibrary newRoot) throws IllegalActionException {
if (isDebugging) log.debug("buildResultTree()");
// iterate over each treepath in results
for (int i = 0; i < results.size(); i++) {
try {
TreePath currentPath = results.getTreePath(i);
if (isDebugging) log.debug(currentPath);
EntityLibrary treeCurrent = newRoot;
for (int j = 1; j < currentPath.getPathCount(); j++) {
NamedObj pathCurrent = (NamedObj) currentPath.getPathComponent(j);
if (pathCurrent instanceof EntityLibrary) {
List<EntityLibrary> children = treeCurrent.entityList(EntityLibrary.class);
boolean alreadyThere = false;
for (EntityLibrary child : children) {
if (isDebugging) log.debug(child.getName());
if (child.getName().equals(pathCurrent.getName())) {
// this EntityLibrary is already there
treeCurrent = child;
alreadyThere = true;
break;
}
}
if (!alreadyThere) {
// create it
EntityLibrary newEntity = copyEntityLibrary((EntityLibrary) pathCurrent);
setContainer(treeCurrent, newEntity);
treeCurrent = newEntity;
}
} else {
List<NamedObj> children = treeCurrent.entityList(NamedObj.class);
boolean alreadyThere = false;
for (NamedObj child : children) {
if (child.getName().equals(pathCurrent.getName())) {
// this NamedObj is already there
alreadyThere = true;
break;
}
}
if (!alreadyThere) {
// create it
NamedObj newEntity = cloneEntity((NamedObj) pathCurrent);
setContainer(treeCurrent, newEntity);
// Leaf node, all done
break;
}
}
}
} catch (IllegalActionException iae) {
throw new IllegalActionException("cannot build search result tree: " + iae);
} catch (NameDuplicationException nde) {
log.error("EXCEPTION CAUGHT: " + nde.getMessage());
} catch (Exception e) {
log.error("EXCEPTION CAUGHT: " + e.getMessage());
}
} // end for loop
}
/**
* Get the unique string description containing the type and name of the\ object within the given
* container.
*
* @param object The object.
* @param topContainer The container used as the top level.
* @return The description.
* @see #getObjectFromCode(String, NamedObj)
*/
public static String getCodeFromObject(NamedObj object, NamedObj topContainer) {
String replacementAbbrev = getObjectTypeAbbreviation(object);
String name = topContainer == null ? object.getName() : object.getName(topContainer);
return replacementAbbrev + name;
}
/**
* Queue a change request to alter the value of the attribute attached to the specified entry, if
* there is one. This method is called whenever an entry has been changed. If no attribute is
* attached to the specified entry, then do nothing.
*
* @param name The name of the entry that has changed.
*/
public void changed(final String name) {
// Check if the entry that changed is in the mapping.
if (_attributes.containsKey(name)) {
final Settable attribute = (Settable) (_attributes.get(name));
if (attribute == null) {
// No associated attribute.
return;
}
ChangeRequest request;
if (attribute instanceof PasswordAttribute) {
// Passwords have to be handled specially because the password
// is not represented in a string.
request =
new ChangeRequest(this, name) {
protected void _execute() throws IllegalActionException {
char[] password = getCharArrayValue(name);
((PasswordAttribute) attribute).setPassword(password);
attribute.validate();
Iterator<?> derived = ((PasswordAttribute) attribute).getDerivedList().iterator();
while (derived.hasNext()) {
PasswordAttribute derivedPassword = (PasswordAttribute) derived.next();
derivedPassword.setPassword(password);
}
}
};
} else if (attribute instanceof NamedObj) {
// NOTE: We must use a MoMLChangeRequest so that changes
// propagate to any objects that have been instantiating
// using this one as a class. This is only an issue if
// attribute is a NamedObj.
NamedObj castAttribute = (NamedObj) attribute;
String stringValue = getStringValue(name);
// If the attribute is a DoubleRangeParameter, then we
// have to translate the integer value returned by the
// JSlider into a double.
if (attribute instanceof DoubleRangeParameter) {
try {
int newValue = Integer.parseInt(stringValue);
int precision =
((IntToken) ((DoubleRangeParameter) attribute).precision.getToken()).intValue();
double max =
((DoubleToken) ((DoubleRangeParameter) attribute).max.getToken()).doubleValue();
double min =
((DoubleToken) ((DoubleRangeParameter) attribute).min.getToken()).doubleValue();
double newValueAsDouble = min + (((max - min) * newValue) / precision);
stringValue = "" + newValueAsDouble;
} catch (IllegalActionException e) {
throw new InternalErrorException(e);
}
}
// The context for the MoML should be the first container
// above this attribute in the hierarchy that defers its
// MoML definition, or the immediate parent if there is none.
NamedObj parent = castAttribute.getContainer();
String moml =
"<property name=\""
+ castAttribute.getName()
+ "\" value=\""
+ StringUtilities.escapeForXML(stringValue)
+ "\"/>";
request =
new MoMLChangeRequest(
this, // originator
parent, // context
moml, // MoML code
null) { // base
protected void _execute() throws Exception {
synchronized (PtolemyQuery.this) {
try {
_ignoreChangeNotifications = true;
super._execute();
} finally {
_ignoreChangeNotifications = false;
}
}
}
};
} else {
// If the attribute is not a NamedObj, then we
// set its value directly.
request =
new ChangeRequest(this, name) {
protected void _execute() throws IllegalActionException {
attribute.setExpression(getStringValue(name));
attribute.validate();
/* NOTE: Earlier version:
// Here, we need to handle instances of Variable
// specially. This is too bad...
if (attribute instanceof Variable) {
// Will this ever happen? A
// Variable that is not a NamedObj???
// Retrieve the token to force
// evaluation, so as to check the
// validity of the new value.
((Variable)attribute).getToken();
}
*/
}
};
}
// NOTE: This object is never removed as a listener from
// the change request. This is OK because this query will
// be closed at some point, and all references to it will
// disappear, and thus both it and the change request should
// become accessible to the garbage collector. However, I
// don't quite trust Java to do this right, since it's not
// completely clear that it releases resources when windows
// are closed. It would be better if this listener were
// a weak reference.
// NOTE: This appears to be unnecessary, since we register
// as a change listener on the handler. This results in
// two notifications. EAL 9/15/02.
request.addChangeListener(this);
if (_handler == null) {
request.execute();
} else {
if (request instanceof MoMLChangeRequest) {
((MoMLChangeRequest) request).setUndoable(true);
}
// Remove the error handler so that this class handles
// the error through the notification. Save the previous
// error handler to restore after this request has been
// processes.
_savedErrorHandler = MoMLParser.getErrorHandler();
MoMLParser.setErrorHandler(null);
_handler.requestChange(request);
}
}
}
/**
* Provide a title area attribute to the specified web exporter to be included in a web page for
* the container of this object.
*
* @param exporter The exporter.
* @param object The object.
* @throws IllegalActionException If evaluating the value of this parameter fails.
*/
protected void _provideOutsideContent(WebExporter exporter, NamedObj object)
throws IllegalActionException {
if (object != null) {
exporter.defineAreaAttribute(object, "title", object.getName(), true);
}
}