| /* |
| * Copyright 2000-2009 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 com.intellij.codeInsight.daemon.impl.quickfix; |
| |
| import com.intellij.codeInsight.FileModificationService; |
| import com.intellij.codeInsight.daemon.QuickFixBundle; |
| import com.intellij.codeInsight.daemon.impl.analysis.JavaHighlightUtil; |
| import com.intellij.codeInsight.intention.IntentionAction; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.util.PsiUtil; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class GeneralizeCatchFix implements IntentionAction { |
| private final PsiElement myElement; |
| private final PsiClassType myUnhandledException; |
| private PsiTryStatement myTryStatement; |
| private PsiParameter myCatchParameter; |
| |
| public GeneralizeCatchFix(@NotNull PsiElement element, @NotNull PsiClassType unhandledException) { |
| myElement = element; |
| myUnhandledException = unhandledException; |
| } |
| |
| @Override |
| @NotNull |
| public String getText() { |
| return QuickFixBundle.message("generalize.catch.text", |
| JavaHighlightUtil.formatType(myCatchParameter == null ? null : myCatchParameter.getType()), |
| JavaHighlightUtil.formatType(myUnhandledException)); |
| } |
| |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return QuickFixBundle.message("generalize.catch.family"); |
| } |
| |
| @Override |
| public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) { |
| if (!(myElement.isValid() |
| && myUnhandledException.isValid() |
| && myElement.getManager().isInProject(myElement))) return false; |
| // find enclosing try |
| PsiElement element = myElement; |
| while (element != null) { |
| if (PsiUtil.isTryBlock(element) || element instanceof PsiResourceList) { |
| myTryStatement = (PsiTryStatement)element.getParent(); |
| break; |
| } |
| if (element instanceof PsiMethod || (element instanceof PsiClass && !(element instanceof PsiAnonymousClass))) break; |
| element = element.getParent(); |
| } |
| if (myTryStatement == null) return false; |
| // check we can generalize at least one catch |
| PsiParameter[] catchBlockParameters = myTryStatement.getCatchBlockParameters(); |
| for (PsiParameter catchBlockParameter : catchBlockParameters) { |
| PsiType type = catchBlockParameter.getType(); |
| if (myUnhandledException.isAssignableFrom(type)) { |
| myCatchParameter = catchBlockParameter; |
| break; |
| } |
| } |
| return myCatchParameter != null; |
| } |
| |
| @Override |
| public void invoke(@NotNull Project project, Editor editor, PsiFile file) throws IncorrectOperationException { |
| if (!FileModificationService.getInstance().prepareFileForWrite(myElement.getContainingFile())) return; |
| PsiElementFactory factory = JavaPsiFacade.getInstance(myElement.getProject()).getElementFactory(); |
| PsiTypeElement type = factory.createTypeElement(myUnhandledException); |
| myCatchParameter.getTypeElement().replace(type); |
| } |
| |
| @Override |
| public boolean startInWriteAction() { |
| return true; |
| } |
| } |