/**
* 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);
}
/**
* 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();
}
String attributeName = ((StringToken) _attributeName.getToken()).stringValue();
String attributeClass;
if (isAttributeClassEnabled()) {
attributeClass = _attributeClass;
} else {
Attribute oldAttribute = hostObject.getAttribute(attributeName);
if (oldAttribute == null) {
throw new IllegalActionException(
"Unable to determine the class"
+ " of attribute "
+ _attributeName
+ " for entity "
+ hostObject
+ ".");
}
attributeClass = oldAttribute.getClassName();
}
ParserScope scope = NamedObjVariable.getNamedObjVariable(hostObject, true).getParserScope();
GTParameter.Evaluator evaluator = new GTParameter.Evaluator(pattern, matchResult);
String expression;
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());
}
}
expression = buffer.toString();
} else if (!(_valueParseTree.isConstant()
&& _valueParseTree.getToken() instanceof StringToken)) {
ASTPtRootNode newRoot = _evaluate(_valueParseTree, evaluator, scope);
expression = _parseTreeWriter.parseTreeToExpression(newRoot);
} else {
expression = _attributeValue.get();
}
String moml =
"<property name=\""
+ attributeName
+ "\" class=\""
+ attributeClass
+ "\" value=\""
+ StringUtilities.escapeForXML(expression)
+ "\"/>";
return new MoMLChangeRequest(this, hostObject, moml, null);
}