com.google.dart.engine.services.internal.refactoring.RenameAngularHasAttributeSelectorRefactoringImpl.java Source code

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Here is the source code for com.google.dart.engine.services.internal.refactoring.RenameAngularHasAttributeSelectorRefactoringImpl.java

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/*
 * Copyright (c) 2014, the Dart project authors.
 * 
 * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
 * in compliance with the License. You may obtain a copy of the License at
 * 
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License
 * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
 * or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.dart.engine.services.internal.refactoring;

import com.google.dart.engine.element.Element;
import com.google.dart.engine.element.angular.AngularComponentElement;
import com.google.dart.engine.element.angular.AngularDecoratorElement;
import com.google.dart.engine.element.angular.AngularElement;
import com.google.dart.engine.element.angular.AngularHasAttributeSelectorElement;
import com.google.dart.engine.element.angular.AngularPropertyElement;
import com.google.dart.engine.element.angular.AngularSelectorElement;
import com.google.dart.engine.internal.element.angular.AngularApplication;
import com.google.dart.engine.search.SearchEngine;
import com.google.dart.engine.services.change.SourceChange;
import com.google.dart.engine.services.refactoring.NamingConventions;
import com.google.dart.engine.services.refactoring.Refactoring;
import com.google.dart.engine.services.status.RefactoringStatus;
import com.google.dart.engine.source.Source;

import static com.google.dart.engine.utilities.source.SourceRangeFactory.rangeElementName;

import org.apache.commons.lang3.StringUtils;

import java.text.MessageFormat;

/**
 * {@link Refactoring} for renaming {@link AngularHasAttributeSelectorElement}.
 */
public class RenameAngularHasAttributeSelectorRefactoringImpl extends RenameAngularElementRefactoringImpl {
    /**
     * If the given {@link AngularPropertyElement} is a property of an {@link AngularDecoratorElement}
     * then returns the {@link AngularHasAttributeSelectorElement} with the same name as the
     * {@link AngularPropertyElement}, or {@code null}.
     */
    public static AngularHasAttributeSelectorElement getAttributeSelectorElement(AngularPropertyElement property) {
        Element enclosing = property.getEnclosingElement();
        if (enclosing instanceof AngularDecoratorElement) {
            AngularDecoratorElement directive = (AngularDecoratorElement) enclosing;
            AngularSelectorElement selector = directive.getSelector();
            if (selector instanceof AngularHasAttributeSelectorElement) {
                AngularHasAttributeSelectorElement attributeSelector = (AngularHasAttributeSelectorElement) selector;
                if (StringUtils.equals(property.getName(), attributeSelector.getName())) {
                    return attributeSelector;
                }
            }
        }
        return null;
    }

    private final AngularHasAttributeSelectorElement element;

    public RenameAngularHasAttributeSelectorRefactoringImpl(SearchEngine searchEngine,
            AngularHasAttributeSelectorElement element) {
        super(searchEngine, element);
        this.element = element;
    }

    @Override
    public String getRefactoringName() {
        return "Rename Attribute Selector";
    }

    @Override
    protected RefactoringStatus checkNameConflicts(String newName) {
        AngularApplication application = element.getApplication();
        if (application != null) {
            for (AngularElement angularElement : application.getElements()) {
                if (angularElement instanceof AngularComponentElement) {
                    AngularComponentElement component = (AngularComponentElement) angularElement;
                    AngularSelectorElement selector = component.getSelector();
                    if (selector instanceof AngularHasAttributeSelectorElement) {
                        AngularHasAttributeSelectorElement attrSelector = (AngularHasAttributeSelectorElement) selector;
                        if (attrSelector.getName().equals(newName)) {
                            String message = MessageFormat.format(
                                    "Application already defines component with attribute selector ''{0}''.",
                                    newName);
                            return RefactoringStatus.createErrorStatus(message);
                        }
                    }
                }
            }
        }
        return new RefactoringStatus();
    }

    @Override
    protected RefactoringStatus checkNameSyntax(String newName) {
        return NamingConventions.validateAngularTagSelectorName(newName);
    }

    @Override
    protected void createAdditionalChanges() throws Exception {
        Element enclosing = element.getEnclosingElement();
        if (enclosing instanceof AngularDecoratorElement) {
            AngularDecoratorElement directive = (AngularDecoratorElement) enclosing;
            for (AngularPropertyElement property : directive.getProperties()) {
                if (property.getName().equals(element.getName())) {
                    Source source = element.getSource();
                    SourceChange sourceChange = changeManager.get(source);
                    addReferenceEdit(sourceChange, new SourceReference(null, source, rangeElementName(property)));
                }
            }
        }
    }
}