private String getMetamodelNsURI(ILeafNode text) {
try {
return (String)
valueConverterService.toValue(
text.getText(), getLinkingHelper().getRuleNameFrom(text.getGrammarElement()), text);
} catch (ValueConverterException e) {
LOG.debug("Exception on leaf '" + text.getText() + "'", e);
return null;
}
}
public @Nullable String getText(@Nullable INode node) {
if (node == null) {
return null;
}
ILeafNode leafNode = ElementUtil.getLeafNode(node);
if (leafNode == null) {
return null;
}
EObject grammarElement = leafNode.getGrammarElement();
if (grammarElement == null) {
return null;
}
String ruleName = getLinkingHelper().getRuleNameFrom(grammarElement);
return (String) valueConverterService.toValue(leafNode.getText(), ruleName, leafNode);
}
public String getCrossRefText(
EObject owner,
CrossReference crossref,
EObject target,
RefTextEvaluator refTextEvaluator,
ITextRegion linkTextRegion,
StatusWrapper status) {
try {
final EReference ref = GrammarUtil.getReference(crossref, owner.eClass());
final IScope scope = scopeProvider.getScope(owner, ref);
if (scope == null) {
throw new IllegalStateException("Could not create scope for the given cross reference.");
}
String ruleName = linkingHelper.getRuleNameFrom(crossref);
Iterable<IEObjectDescription> descriptionsForCrossRef = scope.getElements(target);
String bestRefText = null;
for (IEObjectDescription desc : descriptionsForCrossRef) {
try {
String unconvertedRefText = qualifiedNameConverter.toString(desc.getName());
String convertedRefText = valueConverter.toString(unconvertedRefText, ruleName);
if (refTextEvaluator.isValid(convertedRefText)
&& (bestRefText == null
|| refTextEvaluator.isBetterThan(convertedRefText, bestRefText)))
bestRefText = convertedRefText;
} catch (ValueConverterException e) {
status.add(
RefactoringStatus.WARNING,
"Missconfigured language: New reference text has invalid syntax.",
owner,
linkTextRegion);
}
}
if (bestRefText == null)
status.add(
RefactoringStatus.ERROR,
"Refactoring introduces a name conflict.",
owner,
linkTextRegion);
return bestRefText;
} catch (Exception exc) {
status.add(ERROR, exc.getMessage(), owner, linkTextRegion);
return null;
}
}