AntRenameProcessor.java

/*
 * Copyright 2000-2010 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
 *
 * 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 org.napile.idea.thermit.dom;

import java.util.Collection;
import java.util.List;
import java.util.Map;

import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import com.intellij.openapi.util.Trinity;
import com.intellij.pom.PomTarget;
import com.intellij.pom.PomTargetPsiElement;
import com.intellij.psi.PsiElement;
import com.intellij.refactoring.rename.RenamePsiElementProcessor;
import com.intellij.util.xml.DomElement;
import com.intellij.util.xml.DomTarget;

/**
 * @author Eugene Zhuravlev
 *         Date: Aug 11, 2010
 */
public class AntRenameProcessor extends RenamePsiElementProcessor
{

	public void prepareRenaming(PsiElement element, String newName, Map<PsiElement, String> allRenames)
	{
		final AntDomElement antElement = convertToAntDomElement(element);
		String propName = null;
		if(antElement instanceof AntDomProperty)
		{
			propName = ((AntDomProperty) antElement).getName().getStringValue();
		}
		else if(antElement instanceof AntDomAntCallParam)
		{
			propName = ((AntDomAntCallParam) antElement).getName().getStringValue();
		}
		if(propName != null)
		{
			final AntDomProject contextProject = antElement.getContextAntProject();
			final List<PsiElement> additional = AntCallParamsFinder.resolve(contextProject, propName);
			for(PsiElement psiElement : additional)
			{
				allRenames.put(psiElement, newName);
			}
			if(antElement instanceof AntDomAntCallParam)
			{
				final Trinity<PsiElement, Collection<String>, PropertiesProvider> result = PropertyResolver.resolve(contextProject, propName, null);
				if(result.getFirst() != null)
				{
					allRenames.put(result.getFirst(), newName);
				}
			}
		}
	}

	public boolean canProcessElement(@NotNull PsiElement element)
	{
		final AntDomElement antElement = convertToAntDomElement(element);
		if(antElement instanceof AntDomProperty || antElement instanceof AntDomAntCallParam)
		{
			return true;
		}
		return false;
	}

	@Nullable
	private static AntDomElement convertToAntDomElement(PsiElement element)
	{
		if(element instanceof PomTargetPsiElement)
		{
			final PomTarget target = ((PomTargetPsiElement) element).getTarget();
			if(target instanceof DomTarget)
			{
				final DomElement domElement = ((DomTarget) target).getDomElement();
				if(domElement instanceof AntDomElement)
				{
					return (AntDomElement) domElement;
				}
			}
		}
		return null;
	}
}