| /* |
| * Copyright 2003-2013 Dave Griffith, Bas Leijdekkers |
| * |
| * 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 com.siyeh.ig; |
| |
| import com.intellij.codeInsight.FileModificationService; |
| import com.intellij.codeInspection.LocalQuickFix; |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.lang.Language; |
| import com.intellij.lang.java.JavaLanguage; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.editor.Document; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.*; |
| import com.intellij.psi.codeStyle.CodeStyleManager; |
| import com.intellij.psi.codeStyle.JavaCodeStyleManager; |
| import com.intellij.psi.util.PsiUtilCore; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.psi.util.FileTypeUtils; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| public abstract class InspectionGadgetsFix implements LocalQuickFix { |
| |
| public static final InspectionGadgetsFix[] EMPTY_ARRAY = {}; |
| private static final Logger LOG = Logger.getInstance("#com.siyeh.ig.InspectionGadgetsFix"); |
| |
| private boolean myOnTheFly = false; |
| |
| @Override |
| public final void applyFix(@NotNull Project project, @NotNull ProblemDescriptor descriptor) { |
| final PsiElement problemElement = descriptor.getPsiElement(); |
| if (problemElement == null || !problemElement.isValid()) { |
| return; |
| } |
| if (prepareForWriting() && !FileModificationService.getInstance().preparePsiElementsForWrite(problemElement)) { |
| return; |
| } |
| try { |
| doFix(project, descriptor); |
| } |
| catch (IncorrectOperationException e) { |
| final Class<? extends InspectionGadgetsFix> aClass = getClass(); |
| final String className = aClass.getName(); |
| final Logger logger = Logger.getInstance(className); |
| logger.error(e); |
| } |
| } |
| |
| protected boolean prepareForWriting() { |
| return true; |
| } |
| |
| protected abstract void doFix(Project project, ProblemDescriptor descriptor); |
| |
| protected static void deleteElement(@NotNull PsiElement element) { |
| element.delete(); |
| } |
| |
| protected static void replaceExpression(@NotNull PsiExpression expression, @NotNull @NonNls String newExpressionText) { |
| final Project project = expression.getProject(); |
| final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project); |
| final PsiElementFactory factory = psiFacade.getElementFactory(); |
| final PsiExpression newExpression = factory.createExpressionFromText(newExpressionText, expression); |
| final PsiElement replacementExpression = expression.replace(newExpression); |
| final CodeStyleManager styleManager = CodeStyleManager.getInstance(project); |
| styleManager.reformat(replacementExpression); |
| } |
| |
| protected static void replaceExpressionWithReferenceTo(@NotNull PsiExpression expression, @NotNull PsiMember target) { |
| final Project project = expression.getProject(); |
| final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project); |
| final PsiElementFactory factory = psiFacade.getElementFactory(); |
| final PsiReferenceExpression newExpression = (PsiReferenceExpression)factory.createExpressionFromText("xxx", expression); |
| final PsiReferenceExpression replacementExpression = (PsiReferenceExpression)expression.replace(newExpression); |
| final PsiElement element = replacementExpression.bindToElement(target); |
| final JavaCodeStyleManager styleManager = JavaCodeStyleManager.getInstance(project); |
| styleManager.shortenClassReferences(element); |
| } |
| |
| protected static void replaceExpressionAndShorten(@NotNull PsiExpression expression, @NotNull @NonNls String newExpressionText) { |
| final Project project = expression.getProject(); |
| final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project); |
| final PsiElementFactory factory = psiFacade.getElementFactory(); |
| final PsiExpression newExpression = factory.createExpressionFromText(newExpressionText, expression); |
| final PsiElement replacementExp = expression.replace(newExpression); |
| final JavaCodeStyleManager javaCodeStyleManager = JavaCodeStyleManager.getInstance(project); |
| javaCodeStyleManager.shortenClassReferences(replacementExp); |
| final CodeStyleManager styleManager = CodeStyleManager.getInstance(project); |
| styleManager.reformat(replacementExp); |
| } |
| |
| protected static void replaceStatement(@NotNull PsiStatement statement, @NotNull @NonNls String newStatementText) { |
| final Project project = statement.getProject(); |
| final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project); |
| final PsiElementFactory factory = psiFacade.getElementFactory(); |
| final PsiStatement newStatement = factory.createStatementFromText(newStatementText, statement); |
| final PsiElement replacementExp = statement.replace(newStatement); |
| final CodeStyleManager styleManager = CodeStyleManager.getInstance(project); |
| styleManager.reformat(replacementExp); |
| } |
| |
| protected static void replaceStatementAndShortenClassNames(@NotNull PsiStatement statement, @NotNull @NonNls String newStatementText) { |
| final Project project = statement.getProject(); |
| final CodeStyleManager styleManager = CodeStyleManager.getInstance(project); |
| final JavaCodeStyleManager javaStyleManager = JavaCodeStyleManager.getInstance(project); |
| if (FileTypeUtils.isInServerPageFile(statement)) { |
| final PsiDocumentManager documentManager = PsiDocumentManager.getInstance(project); |
| final PsiFile jspFile = PsiUtilCore.getTemplateLanguageFile(statement); |
| if (jspFile == null) { |
| return; |
| } |
| final Document document = documentManager.getDocument(jspFile); |
| if (document == null) { |
| return; |
| } |
| documentManager.doPostponedOperationsAndUnblockDocument(document); |
| final TextRange textRange = statement.getTextRange(); |
| document.replaceString(textRange.getStartOffset(), textRange.getEndOffset(), newStatementText); |
| documentManager.commitDocument(document); |
| final FileViewProvider viewProvider = jspFile.getViewProvider(); |
| PsiElement elementAt = viewProvider.findElementAt(textRange.getStartOffset(), JavaLanguage.INSTANCE); |
| if (elementAt == null) { |
| return; |
| } |
| final int endOffset = textRange.getStartOffset() + newStatementText.length(); |
| while (elementAt.getTextRange().getEndOffset() < endOffset || !(elementAt instanceof PsiStatement)) { |
| elementAt = elementAt.getParent(); |
| if (elementAt == null) { |
| LOG.error("Cannot decode statement"); |
| return; |
| } |
| } |
| final PsiStatement newStatement = (PsiStatement)elementAt; |
| javaStyleManager.shortenClassReferences(newStatement); |
| final TextRange newTextRange = newStatement.getTextRange(); |
| final Language baseLanguage = viewProvider.getBaseLanguage(); |
| final PsiFile element = viewProvider.getPsi(baseLanguage); |
| if (element != null) { |
| styleManager.reformatRange(element, newTextRange.getStartOffset(), newTextRange.getEndOffset()); |
| } |
| } |
| else { |
| final JavaPsiFacade facade = JavaPsiFacade.getInstance(project); |
| final PsiElementFactory factory = facade.getElementFactory(); |
| PsiStatement newStatement = factory.createStatementFromText(newStatementText, statement); |
| newStatement = (PsiStatement)statement.replace(newStatement); |
| javaStyleManager.shortenClassReferences(newStatement); |
| styleManager.reformat(newStatement); |
| } |
| } |
| |
| protected static String getElementText(@NotNull PsiElement element, @Nullable PsiElement elementToReplace, @Nullable String replacement) { |
| final StringBuilder out = new StringBuilder(); |
| getElementText(element, elementToReplace, replacement, out); |
| return out.toString(); |
| } |
| |
| private static void getElementText(@NotNull PsiElement element, @Nullable PsiElement elementToReplace, |
| @Nullable String replacement, @NotNull StringBuilder out) { |
| if (element.equals(elementToReplace)) { |
| out.append(replacement); |
| return; |
| } |
| final PsiElement[] children = element.getChildren(); |
| if (children.length == 0) { |
| out.append(element.getText()); |
| return; |
| } |
| for (PsiElement child : children) { |
| getElementText(child, elementToReplace, replacement, out); |
| } |
| } |
| |
| public final void setOnTheFly(boolean onTheFly) { |
| myOnTheFly = onTheFly; |
| } |
| |
| public final boolean isOnTheFly() { |
| return myOnTheFly; |
| } |
| } |