| /* |
| * Copyright 2003-2012 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.classlayout; |
| |
| import com.intellij.codeInspection.ProblemDescriptor; |
| import com.intellij.codeInspection.util.SpecialAnnotationsUtil; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.ui.Messages; |
| import com.intellij.psi.*; |
| import com.intellij.psi.codeStyle.CodeStyleManager; |
| import com.intellij.psi.search.searches.ReferencesSearch; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.Query; |
| import com.intellij.util.ui.CheckBox; |
| import com.siyeh.InspectionGadgetsBundle; |
| import com.siyeh.ig.InspectionGadgetsFix; |
| import com.siyeh.ig.fixes.AddToIgnoreIfAnnotatedByListQuickFix; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import javax.swing.*; |
| import java.awt.*; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| public class UtilityClassWithoutPrivateConstructorInspection extends UtilityClassWithoutPrivateConstructorInspectionBase { |
| |
| @Override |
| @Nullable |
| public JComponent createOptionsPanel() { |
| final JPanel panel = new JPanel(new BorderLayout()); |
| final JPanel annotationsPanel = SpecialAnnotationsUtil.createSpecialAnnotationsListControl( |
| ignorableAnnotations, InspectionGadgetsBundle.message("ignore.if.annotated.by")); |
| panel.add(annotationsPanel, BorderLayout.CENTER); |
| final CheckBox checkBox = new CheckBox(InspectionGadgetsBundle.message("utility.class.without.private.constructor.option"), |
| this, "ignoreClassesWithOnlyMain"); |
| panel.add(checkBox, BorderLayout.SOUTH); |
| return panel; |
| } |
| |
| @NotNull |
| @Override |
| protected InspectionGadgetsFix[] buildFixes(Object... infos) { |
| final List<InspectionGadgetsFix> fixes = new ArrayList<InspectionGadgetsFix>(); |
| final PsiClass aClass = (PsiClass)infos[0]; |
| final PsiMethod constructor = getNullArgConstructor(aClass); |
| if (constructor == null) { |
| fixes.add(new CreateEmptyPrivateConstructor()); |
| } |
| else { |
| final Query<PsiReference> query = ReferencesSearch.search(constructor, constructor.getUseScope()); |
| final PsiReference reference = query.findFirst(); |
| if (reference == null) { |
| fixes.add(new MakeConstructorPrivateFix()); |
| } |
| } |
| AddToIgnoreIfAnnotatedByListQuickFix.build(aClass, ignorableAnnotations, fixes); |
| return fixes.toArray(new InspectionGadgetsFix[fixes.size()]); |
| } |
| |
| protected static class CreateEmptyPrivateConstructor extends InspectionGadgetsFix { |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message("utility.class.without.private.constructor.create.quickfix"); |
| } |
| |
| @NotNull |
| @Override |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| public void doFix(Project project, ProblemDescriptor descriptor) throws IncorrectOperationException { |
| final PsiElement classNameIdentifier = descriptor.getPsiElement(); |
| final PsiElement parent = classNameIdentifier.getParent(); |
| if (!(parent instanceof PsiClass)) { |
| return; |
| } |
| final PsiClass aClass = (PsiClass)parent; |
| final Query<PsiReference> query = ReferencesSearch.search(aClass, aClass.getUseScope()); |
| for (PsiReference reference : query) { |
| if (reference == null) { |
| continue; |
| } |
| final PsiElement element = reference.getElement(); |
| final PsiElement context = element.getParent(); |
| if (context instanceof PsiNewExpression) { |
| SwingUtilities.invokeLater(new Runnable() { |
| @Override |
| public void run() { |
| Messages.showInfoMessage(aClass.getProject(), |
| "Utility class has instantiations, private constructor will not be created", |
| "Can't generate constructor"); |
| } |
| }); |
| return; |
| } |
| } |
| final JavaPsiFacade psiFacade = JavaPsiFacade.getInstance(project); |
| final PsiElementFactory factory = psiFacade.getElementFactory(); |
| final PsiMethod constructor = factory.createConstructor(); |
| final PsiModifierList modifierList = constructor.getModifierList(); |
| modifierList.setModifierProperty(PsiModifier.PRIVATE, true); |
| aClass.add(constructor); |
| final CodeStyleManager styleManager = CodeStyleManager.getInstance(project); |
| styleManager.reformat(constructor); |
| } |
| } |
| |
| private static class MakeConstructorPrivateFix extends InspectionGadgetsFix { |
| @Override |
| @NotNull |
| public String getFamilyName() { |
| return getName(); |
| } |
| |
| @Override |
| @NotNull |
| public String getName() { |
| return InspectionGadgetsBundle.message("utility.class.without.private.constructor.make.quickfix"); |
| } |
| |
| @Override |
| public void doFix(Project project, ProblemDescriptor descriptor) throws IncorrectOperationException { |
| final PsiElement classNameIdentifier = descriptor.getPsiElement(); |
| final PsiElement parent = classNameIdentifier.getParent(); |
| if (!(parent instanceof PsiClass)) { |
| return; |
| } |
| final PsiClass aClass = (PsiClass)parent; |
| final PsiMethod[] constructors = aClass.getConstructors(); |
| for (final PsiMethod constructor : constructors) { |
| final PsiParameterList parameterList = constructor.getParameterList(); |
| if (parameterList.getParametersCount() == 0) { |
| final PsiModifierList modifiers = constructor.getModifierList(); |
| modifiers.setModifierProperty(PsiModifier.PUBLIC, false); |
| modifiers.setModifierProperty(PsiModifier.PROTECTED, false); |
| modifiers.setModifierProperty(PsiModifier.PRIVATE, true); |
| } |
| } |
| } |
| } |
| } |