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/*
* Copyright 2000-2013 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.siyeh.ig.inheritance;
import com.intellij.codeInsight.FileModificationService;
import com.intellij.codeInsight.intention.IntentionAction;
import com.intellij.codeInsight.intention.QuickFixFactory;
import com.intellij.codeInspection.ProblemDescriptor;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.application.ModalityState;
import com.intellij.openapi.application.Result;
import com.intellij.openapi.command.WriteCommandAction;
import com.intellij.openapi.progress.ProgressIndicator;
import com.intellij.openapi.progress.ProgressManager;
import com.intellij.openapi.progress.Task;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.Computable;
import com.intellij.psi.*;
import com.intellij.psi.impl.DebugUtil;
import com.intellij.psi.search.searches.ReferencesSearch;
import com.intellij.psi.util.InheritanceUtil;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.util.IncorrectOperationException;
import com.intellij.util.Query;
import com.intellij.util.ui.UIUtil;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.InspectionGadgetsFix;
import com.siyeh.ig.psiutils.ClassUtils;
import org.jetbrains.annotations.NotNull;
/**
* User: cdr
*/
class StaticInheritanceFix extends InspectionGadgetsFix {
private final boolean myReplaceInWholeProject;
StaticInheritanceFix(boolean replaceInWholeProject) {
myReplaceInWholeProject = replaceInWholeProject;
}
@Override
@NotNull
public String getName() {
String scope =
myReplaceInWholeProject ? InspectionGadgetsBundle.message("the.whole.project") : InspectionGadgetsBundle.message("this.class");
return InspectionGadgetsBundle.message("static.inheritance.replace.quickfix", scope);
}
@NotNull
@Override
public String getFamilyName() {
return "Replace inheritance with qualified reference";
}
@Override
public void doFix(final Project project, final ProblemDescriptor descriptor) throws IncorrectOperationException {
ApplicationManager.getApplication().invokeLater(new Runnable() {
@Override
public void run() {
dodoFix(project, descriptor);
}
}, ModalityState.NON_MODAL, project.getDisposed());
}
private void dodoFix(final Project project, ProblemDescriptor descriptor) throws IncorrectOperationException {
final PsiJavaCodeReferenceElement referenceElement = (PsiJavaCodeReferenceElement)descriptor.getPsiElement();
final PsiClass iface = (PsiClass)referenceElement.resolve();
assert iface != null;
final PsiField[] allFields = iface.getAllFields();
final PsiClass implementingClass = ClassUtils.getContainingClass(referenceElement);
final PsiManager manager = referenceElement.getManager();
assert implementingClass != null;
final PsiFile file = implementingClass.getContainingFile();
ProgressManager.getInstance().run(new Task.Modal(project, "Replacing usages of " + iface.getName(), false) {
@Override
public void run(@NotNull ProgressIndicator indicator) {
for (final PsiField field : allFields) {
final Query<PsiReference> search = ReferencesSearch.search(field, implementingClass.getUseScope(), false);
for (PsiReference reference : search) {
if (!(reference instanceof PsiReferenceExpression)) {
continue;
}
final PsiReferenceExpression referenceExpression = (PsiReferenceExpression)reference;
if (!myReplaceInWholeProject) {
boolean isInheritor =
ApplicationManager.getApplication().runReadAction(new Computable<Boolean>() {
@Override
public Boolean compute() {
boolean isInheritor = false;
PsiClass aClass = PsiTreeUtil.getParentOfType(referenceExpression, PsiClass.class);
while (aClass != null) {
isInheritor = InheritanceUtil.isInheritorOrSelf(aClass, implementingClass, true);
if (isInheritor) break;
aClass = PsiTreeUtil.getParentOfType(aClass, PsiClass.class);
}
return isInheritor;
}
});
if (!isInheritor) continue;
}
final Runnable runnable = new Runnable() {
@Override
public void run() {
if (!FileModificationService.getInstance().preparePsiElementsForWrite(referenceExpression)) {
return;
}
final PsiElementFactory elementFactory = JavaPsiFacade.getInstance(manager.getProject()).getElementFactory();
final PsiReferenceExpression qualified =
(PsiReferenceExpression)elementFactory
.createExpressionFromText("xxx." + referenceExpression.getText(), referenceExpression);
final PsiReferenceExpression newReference = (PsiReferenceExpression)referenceExpression.replace(qualified);
final PsiReferenceExpression qualifier = (PsiReferenceExpression)newReference.getQualifierExpression();
assert qualifier != null : DebugUtil.psiToString(newReference, false);
final PsiClass containingClass = field.getContainingClass();
qualifier.bindToElement(containingClass);
}
};
invokeWriteAction(runnable, file);
}
}
final Runnable runnable = new Runnable() {
@Override
public void run() {
PsiClassType classType = JavaPsiFacade.getInstance(project).getElementFactory().createType(iface);
IntentionAction fix = QuickFixFactory.getInstance().createExtendsListFix(implementingClass, classType, false);
fix.invoke(project, null, file);
}
};
invokeWriteAction(runnable, file);
}
});
}
private static void invokeWriteAction(final Runnable runnable, final PsiFile file) {
UIUtil.invokeLaterIfNeeded(new Runnable() {
@Override
public void run() {
new WriteCommandAction(file.getProject(), file) {
@Override
protected void run(Result result) throws Throwable {
runnable.run();
}
}.execute();
}
});
}
}
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