| /* |
| * 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.ExceptionUtil; |
| import com.intellij.codeInsight.FileModificationService; |
| import com.intellij.codeInsight.daemon.QuickFixBundle; |
| 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.PsiTreeUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.Collections; |
| |
| /** |
| * @author mike |
| */ |
| public class AddRuntimeExceptionToThrowsAction implements IntentionAction { |
| |
| @Override |
| public boolean startInWriteAction() { |
| return false; |
| } |
| |
| @Override |
| @NotNull |
| public String getText() { |
| return QuickFixBundle.message("add.runtime.exception.to.throws.text"); |
| } |
| |
| @Override |
| public void invoke(@NotNull final Project project, Editor editor, PsiFile file) { |
| if (!FileModificationService.getInstance().prepareFileForWrite(file)) return; |
| |
| PsiDocumentManager.getInstance(project).commitAllDocuments(); |
| |
| PsiClassType aClass = getRuntimeExceptionAtCaret(editor, file); |
| PsiMethod method = PsiTreeUtil.getParentOfType(elementAtCaret(editor, file), PsiMethod.class); |
| |
| AddExceptionToThrowsFix.addExceptionsToThrowsList(project, method, Collections.singleton(aClass)); |
| } |
| |
| |
| private static boolean isMethodThrows(PsiMethod method, PsiClassType exception) { |
| PsiClassType[] throwsTypes = method.getThrowsList().getReferencedTypes(); |
| for (PsiClassType throwsType : throwsTypes) { |
| if (throwsType.isAssignableFrom(exception)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| @Override |
| public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) { |
| if (!(file instanceof PsiJavaFile)) return false; |
| PsiClassType exception = getRuntimeExceptionAtCaret(editor, file); |
| if (exception == null) return false; |
| |
| PsiMethod method = PsiTreeUtil.getParentOfType(elementAtCaret(editor, file), PsiMethod.class); |
| if (method == null || !method.getThrowsList().isPhysical()) return false; |
| |
| return !isMethodThrows(method, exception); |
| } |
| |
| private static PsiClassType getRuntimeExceptionAtCaret(Editor editor, PsiFile file) { |
| PsiElement element = elementAtCaret(editor, file); |
| if (element == null) return null; |
| PsiThrowStatement expression = PsiTreeUtil.getParentOfType(element, PsiThrowStatement.class); |
| if (expression == null) return null; |
| PsiExpression exception = expression.getException(); |
| if (exception == null) return null; |
| PsiType type = exception.getType(); |
| if (!(type instanceof PsiClassType)) return null; |
| if (!ExceptionUtil.isUncheckedException((PsiClassType)type)) return null; |
| return (PsiClassType)type; |
| } |
| |
| private static PsiElement elementAtCaret(final Editor editor, final PsiFile file) { |
| int offset = editor.getCaretModel().getOffset(); |
| return file.findElementAt(offset); |
| } |
| |
| |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return QuickFixBundle.message("add.runtime.exception.to.throws.family"); |
| } |
| } |