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/*
* Copyright 2011 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.ipp.exceptions;
import com.intellij.psi.*;
import com.intellij.psi.impl.PsiImplUtil;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.util.IncorrectOperationException;
import com.siyeh.ipp.base.Intention;
import com.siyeh.ipp.base.PsiElementPredicate;
import org.jetbrains.annotations.NotNull;
import java.util.List;
import static com.intellij.util.ObjectUtils.assertNotNull;
public class SplitMultiCatchIntention extends Intention {
@NotNull
@Override
protected PsiElementPredicate getElementPredicate() {
return new MulticatchPredicate();
}
@Override
protected void processIntention(@NotNull PsiElement element) throws IncorrectOperationException {
final PsiElement parent = element.getParent();
if (!(parent instanceof PsiCatchSection)) {
return;
}
final PsiCatchSection catchSection = (PsiCatchSection)parent;
final PsiElement grandParent = catchSection.getParent();
if (!(grandParent instanceof PsiTryStatement)) {
return;
}
final PsiParameter parameter = catchSection.getParameter();
if (parameter == null) {
return;
}
final PsiType type = parameter.getType();
if (!(type instanceof PsiDisjunctionType)) {
return;
}
final PsiElementFactory factory = JavaPsiFacade.getElementFactory(element.getProject());
final List<PsiTypeElement> disjunctions = PsiTreeUtil.getChildrenOfTypeAsList(parameter.getTypeElement(), PsiTypeElement.class);
for (int i = 0; i < disjunctions.size(); i++) {
final PsiCatchSection copy = (PsiCatchSection)catchSection.copy();
final PsiTypeElement typeElement = assertNotNull(assertNotNull(copy.getParameter()).getTypeElement());
final PsiTypeElement newTypeElement = factory.createTypeElementFromText(disjunctions.get(i).getText(), catchSection);
typeElement.replace(newTypeElement);
grandParent.addBefore(copy, catchSection);
if (i == 0) {
// clear the original from type annotations: they belong to the first disjunction and should not appear in others
final PsiModifierList modifierList = parameter.getModifierList();
if (modifierList != null) {
for (PsiAnnotation annotation : modifierList.getAnnotations()) {
if (PsiImplUtil.findApplicableTarget(annotation, PsiAnnotation.TargetType.TYPE_USE) == PsiAnnotation.TargetType.TYPE_USE) {
annotation.delete();
}
}
}
}
}
catchSection.delete();
}
}
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