| /* |
| * 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.refactoring.removemiddleman; |
| |
| import com.intellij.codeInsight.generation.GenerateMembersUtil; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.Ref; |
| import com.intellij.psi.*; |
| import com.intellij.psi.presentation.java.SymbolPresentationUtil; |
| import com.intellij.psi.search.searches.ReferencesSearch; |
| import com.intellij.psi.util.PropertyUtil; |
| import com.intellij.refactoring.RefactorJBundle; |
| import com.intellij.refactoring.removemiddleman.usageInfo.DeleteMethod; |
| import com.intellij.refactoring.removemiddleman.usageInfo.InlineDelegatingCall; |
| import com.intellij.refactoring.util.FixableUsageInfo; |
| import com.intellij.refactoring.util.FixableUsagesRefactoringProcessor; |
| import com.intellij.refactoring.util.classMembers.MemberInfo; |
| import com.intellij.usageView.UsageInfo; |
| import com.intellij.usageView.UsageViewDescriptor; |
| import com.intellij.util.IncorrectOperationException; |
| import com.intellij.util.containers.MultiMap; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.List; |
| |
| public class RemoveMiddlemanProcessor extends FixableUsagesRefactoringProcessor { |
| private static final Logger LOG = Logger.getInstance("#" + RemoveMiddlemanProcessor.class.getName()); |
| |
| private final PsiField field; |
| private final PsiClass containingClass; |
| private final List<MemberInfo> myDelegateMethodInfos; |
| private PsiMethod getter; |
| |
| public RemoveMiddlemanProcessor(PsiField field, List<MemberInfo> memberInfos) { |
| super(field.getProject()); |
| this.field = field; |
| containingClass = field.getContainingClass(); |
| final String propertyName = PropertyUtil.suggestPropertyName(field); |
| final boolean isStatic = field.hasModifierProperty(PsiModifier.STATIC); |
| getter = PropertyUtil.findPropertyGetter(containingClass, propertyName, isStatic, false); |
| myDelegateMethodInfos = memberInfos; |
| } |
| |
| @NotNull |
| protected UsageViewDescriptor createUsageViewDescriptor(UsageInfo[] usageInfos) { |
| return new RemoveMiddlemanUsageViewDescriptor(field); |
| } |
| |
| |
| public void findUsages(@NotNull List<FixableUsageInfo> usages) { |
| for (final MemberInfo memberInfo : myDelegateMethodInfos) { |
| if (!memberInfo.isChecked()) continue; |
| final PsiMethod method = (PsiMethod)memberInfo.getMember(); |
| final Project project = method.getProject(); |
| final String getterName = PropertyUtil.suggestGetterName(field); |
| final int[] paramPermutation = DelegationUtils.getParameterPermutation(method); |
| final PsiMethod delegatedMethod = DelegationUtils.getDelegatedMethod(method); |
| LOG.assertTrue(!DelegationUtils.isAbstract(method)); |
| processUsagesForMethod(memberInfo.isToAbstract(), method, paramPermutation, getterName, delegatedMethod, usages); |
| } |
| } |
| |
| @Override |
| protected boolean preprocessUsages(final Ref<UsageInfo[]> refUsages) { |
| final MultiMap<PsiElement, String> conflicts = new MultiMap<PsiElement, String>(); |
| for (MemberInfo memberInfo : myDelegateMethodInfos) { |
| if (memberInfo.isChecked() && memberInfo.isToAbstract()) { |
| final PsiMember psiMember = memberInfo.getMember(); |
| if (psiMember instanceof PsiMethod && ((PsiMethod)psiMember).findDeepestSuperMethods().length > 0) { |
| conflicts.putValue(psiMember, SymbolPresentationUtil.getSymbolPresentableText(psiMember) + " will be deleted. Hierarchy will be broken"); |
| } |
| } |
| } |
| return showConflicts(conflicts, refUsages.get()); |
| } |
| |
| private void processUsagesForMethod(final boolean deleteMethodHierarchy, PsiMethod method, int[] paramPermutation, String getterName, PsiMethod delegatedMethod, |
| List<FixableUsageInfo> usages) { |
| for (PsiReference reference : ReferencesSearch.search(method)) { |
| final PsiElement referenceElement = reference.getElement(); |
| final PsiMethodCallExpression call = (PsiMethodCallExpression)referenceElement.getParent(); |
| final String access; |
| if (call.getMethodExpression().getQualifierExpression() == null) { |
| access = field.getName(); |
| } else { |
| access = getterName + "()"; |
| if (getter == null) { |
| getter = GenerateMembersUtil.generateGetterPrototype(field); |
| } |
| } |
| usages.add(new InlineDelegatingCall(call, paramPermutation, access, delegatedMethod.getName())); |
| } |
| if (deleteMethodHierarchy) { |
| usages.add(new DeleteMethod(method)); |
| } |
| } |
| |
| protected void performRefactoring(UsageInfo[] usageInfos) { |
| if (getter != null) { |
| try { |
| if (containingClass.findMethodBySignature(getter, false) == null) { |
| containingClass.add(getter); |
| } |
| } |
| catch (IncorrectOperationException e) { |
| LOG.error(e); |
| } |
| } |
| |
| super.performRefactoring(usageInfos); |
| } |
| |
| protected String getCommandName() { |
| return RefactorJBundle.message("exposed.delegation.command.name", containingClass.getName(), '.', field.getName()); |
| } |
| } |