| /* |
| * Copyright 2003-2007 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.inheritance; |
| |
| import com.intellij.psi.PsiClass; |
| import com.intellij.psi.PsiMethod; |
| import com.intellij.psi.PsiModifier; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.BaseInspection; |
| import com.siyeh.ig.BaseInspectionVisitor; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| public class AbstractClassWithoutAbstractMethodsInspection |
| extends BaseInspection { |
| |
| @Override |
| @NotNull |
| public String getDisplayName() { |
| return InspectionGadgetsBundle.message( |
| "abstract.class.without.abstract.methods.display.name"); |
| } |
| |
| @Override |
| @NotNull |
| protected String buildErrorString(Object... infos) { |
| return InspectionGadgetsBundle.message( |
| "abstract.class.without.abstract.methods.problem.descriptor"); |
| } |
| |
| @Override |
| public BaseInspectionVisitor buildVisitor() { |
| return new AbstractClassWithoutAbstractMethodsVisitor(); |
| } |
| |
| private static class AbstractClassWithoutAbstractMethodsVisitor |
| extends BaseInspectionVisitor { |
| |
| @Override |
| public void visitClass(@NotNull PsiClass aClass) { |
| // no call to super, so that it doesn't drill down to inner classes |
| if (aClass.isInterface() || aClass.isAnnotationType()) { |
| return; |
| } |
| if (!aClass.hasModifierProperty(PsiModifier.ABSTRACT)) { |
| return; |
| } |
| if (hasAbstractMethods(aClass)) { |
| return; |
| } |
| registerClassError(aClass); |
| } |
| |
| private static boolean hasAbstractMethods(PsiClass aClass) { |
| final PsiMethod[] methods = aClass.getMethods(); |
| final Set<PsiMethod> overriddenMethods = |
| calculateOverriddenMethods(methods); |
| final PsiMethod[] allMethods = aClass.getAllMethods(); |
| for (final PsiMethod method : allMethods) { |
| if (method.hasModifierProperty(PsiModifier.ABSTRACT) && |
| !overriddenMethods.contains(method)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| private static Set<PsiMethod> calculateOverriddenMethods( |
| PsiMethod[] methods) { |
| final Set<PsiMethod> overriddenMethods = |
| new HashSet<PsiMethod>(methods.length); |
| for (final PsiMethod method : methods) { |
| calculateOverriddenMethods(method, overriddenMethods); |
| } |
| return overriddenMethods; |
| } |
| |
| private static void calculateOverriddenMethods( |
| PsiMethod method, Set<PsiMethod> overriddenMethods) { |
| final PsiMethod[] superMethods = method.findSuperMethods(); |
| for (final PsiMethod superMethod : superMethods) { |
| overriddenMethods.add(superMethod); |
| } |
| } |
| } |
| } |