Examples with TypeReferenceMatch org.eclipse.jdt.core.search.TypeReferenceMatch used on opensource projects

Example 1 with TypeReferenceMatch

use of org.eclipse.jdt.core.search.TypeReferenceMatch in project che by eclipse.

the class RenameTypeProcessor method initializeReferences.

/**
	 * Initializes the references to the type and the similarly named elements. This
	 * method creates both the fReferences and the fPreloadedElementToName
	 * fields.
	 *
	 * May be called from the UI.
	 * @param monitor progress monitor
	 * @return initialization status
	 * @throws JavaModelException some fundamental error with the underlying model
	 * @throws OperationCanceledException if user canceled the task
	 *
	 */
public RefactoringStatus initializeReferences(IProgressMonitor monitor) throws JavaModelException, OperationCanceledException {
    Assert.isNotNull(fType);
    Assert.isNotNull(getNewElementName());
    if (fReferences != null && (getNewElementName().equals(fCachedNewName)) && (fCachedRenameSimilarElements == getUpdateSimilarDeclarations()) && (fCachedRenamingStrategy == fRenamingStrategy))
        return fCachedRefactoringStatus;
    fCachedNewName = getNewElementName();
    fCachedRenameSimilarElements = fUpdateSimilarElements;
    fCachedRenamingStrategy = fRenamingStrategy;
    fCachedRefactoringStatus = new RefactoringStatus();
    try {
        SearchPattern pattern = SearchPattern.createPattern(fType, IJavaSearchConstants.REFERENCES, SearchUtils.GENERICS_AGNOSTIC_MATCH_RULE);
        String binaryRefsDescription = Messages.format(RefactoringCoreMessages.ReferencesInBinaryContext_ref_in_binaries_description, BasicElementLabels.getJavaElementName(fType.getElementName()));
        ReferencesInBinaryContext binaryRefs = new ReferencesInBinaryContext(binaryRefsDescription);
        fReferences = RefactoringSearchEngine.search(pattern, RefactoringScopeFactory.create(fType, true, false), new TypeOccurrenceCollector(fType, binaryRefs), monitor, fCachedRefactoringStatus);
        binaryRefs.addErrorIfNecessary(fCachedRefactoringStatus);
        fReferences = Checks.excludeCompilationUnits(fReferences, fCachedRefactoringStatus);
        fPreloadedElementToName = new LinkedHashMap<IJavaElement, String>();
        fPreloadedElementToSelection = new HashMap<IJavaElement, Boolean>();
        final String unQualifiedTypeName = fType.getElementName();
        //$NON-NLS-1$
        monitor.beginTask("", fReferences.length);
        if (getUpdateSimilarDeclarations()) {
            RenamingNameSuggestor sugg = new RenamingNameSuggestor(fRenamingStrategy);
            for (int i = 0; i < fReferences.length; i++) {
                final ICompilationUnit cu = fReferences[i].getCompilationUnit();
                if (cu == null)
                    continue;
                final SearchMatch[] results = fReferences[i].getSearchResults();
                for (int j = 0; j < results.length; j++) {
                    if (!(results[j] instanceof TypeReferenceMatch))
                        continue;
                    final TypeReferenceMatch match = (TypeReferenceMatch) results[j];
                    final List<IJavaElement> matches = new ArrayList<IJavaElement>();
                    if (match.getLocalElement() != null) {
                        if (match.getLocalElement() instanceof ILocalVariable) {
                            matches.add(match.getLocalElement());
                        }
                    // else don't update (e.g. match in type parameter, annotation, ...)
                    } else {
                        matches.add((IJavaElement) match.getElement());
                    }
                    final IJavaElement[] others = match.getOtherElements();
                    if (others != null)
                        matches.addAll(Arrays.asList(others));
                    for (Iterator<IJavaElement> iter = matches.iterator(); iter.hasNext(); ) {
                        final IJavaElement element = iter.next();
                        if (!(element instanceof IMethod) && !(element instanceof IField) && !(element instanceof ILocalVariable))
                            continue;
                        if (!isInDeclaredType(match.getOffset(), element))
                            continue;
                        if (element instanceof IField) {
                            final IField currentField = (IField) element;
                            final String newFieldName = sugg.suggestNewFieldName(currentField.getJavaProject(), currentField.getElementName(), Flags.isStatic(currentField.getFlags()), unQualifiedTypeName, getNewElementName());
                            if (newFieldName != null)
                                fPreloadedElementToName.put(currentField, newFieldName);
                        } else if (element instanceof IMethod) {
                            final IMethod currentMethod = (IMethod) element;
                            addMethodRename(unQualifiedTypeName, sugg, currentMethod);
                        } else if (element instanceof ILocalVariable) {
                            final ILocalVariable currentLocal = (ILocalVariable) element;
                            final boolean isParameter;
                            if (currentLocal.isParameter()) {
                                addMethodRename(unQualifiedTypeName, sugg, (IMethod) currentLocal.getParent());
                                isParameter = true;
                            } else
                                isParameter = false;
                            final String newLocalName = sugg.suggestNewLocalName(currentLocal.getJavaProject(), currentLocal.getElementName(), isParameter, unQualifiedTypeName, getNewElementName());
                            if (newLocalName != null)
                                fPreloadedElementToName.put(currentLocal, newLocalName);
                        }
                    }
                }
                if (monitor.isCanceled())
                    throw new OperationCanceledException();
            }
        }
        for (Iterator<IJavaElement> iter = fPreloadedElementToName.keySet().iterator(); iter.hasNext(); ) {
            IJavaElement element = iter.next();
            fPreloadedElementToSelection.put(element, Boolean.TRUE);
        }
        fPreloadedElementToNameDefault = new LinkedHashMap<IJavaElement, String>(fPreloadedElementToName);
    } catch (OperationCanceledException e) {
        fReferences = null;
        fPreloadedElementToName = null;
        throw new OperationCanceledException();
    }
    return fCachedRefactoringStatus;
}