| /* |
| * Copyright 2000-2014 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.psi.impl.search; |
| |
| import com.intellij.openapi.application.ApplicationManager; |
| import com.intellij.openapi.util.Computable; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.java.stubs.index.JavaAnnotationIndex; |
| import com.intellij.psi.search.GlobalSearchScope; |
| import com.intellij.psi.search.LocalSearchScope; |
| import com.intellij.psi.search.SearchScope; |
| import com.intellij.psi.search.searches.AnnotatedElementsSearch; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.util.Processor; |
| import com.intellij.util.QueryExecutor; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.Collection; |
| import java.util.List; |
| |
| /** |
| * @author max |
| */ |
| public class AnnotatedElementsSearcher implements QueryExecutor<PsiModifierListOwner, AnnotatedElementsSearch.Parameters> { |
| @Override |
| public boolean execute(@NotNull final AnnotatedElementsSearch.Parameters p, @NotNull final Processor<PsiModifierListOwner> consumer) { |
| final PsiClass annClass = p.getAnnotationClass(); |
| assert annClass.isAnnotationType() : "Annotation type should be passed to annotated members search"; |
| |
| final String annotationFQN = ApplicationManager.getApplication().runReadAction(new Computable<String>() { |
| @Override |
| public String compute() { |
| return annClass.getQualifiedName(); |
| } |
| }); |
| assert annotationFQN != null; |
| |
| final PsiManager psiManager = ApplicationManager.getApplication().runReadAction(new Computable<PsiManager>() { |
| @Override |
| public PsiManager compute() { |
| return annClass.getManager(); |
| } |
| }); |
| |
| final SearchScope useScope = p.getScope(); |
| final Class<? extends PsiModifierListOwner>[] types = p.getTypes(); |
| |
| for (final PsiAnnotation ann : getAnnotationCandidates(annClass, useScope)) { |
| final PsiModifierListOwner candidate = ApplicationManager.getApplication().runReadAction(new Computable<PsiModifierListOwner>() { |
| @Override |
| public PsiModifierListOwner compute() { |
| PsiElement parent = ann.getParent(); |
| if (!(parent instanceof PsiModifierList)) { |
| return null; // Can be a PsiNameValuePair, if annotation is used to annotate annotation parameters |
| } |
| |
| final PsiElement owner = parent.getParent(); |
| if (!isInstanceof(owner, types)) { |
| return null; |
| } |
| |
| final PsiJavaCodeReferenceElement ref = ann.getNameReferenceElement(); |
| if (ref == null || !psiManager.areElementsEquivalent(ref.resolve(), annClass)) { |
| return null; |
| } |
| |
| return (PsiModifierListOwner)owner; |
| } |
| }); |
| |
| if (candidate != null && !consumer.process(candidate)) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| private static Collection<PsiAnnotation> getAnnotationCandidates(final PsiClass annClass, final SearchScope useScope) { |
| return ApplicationManager.getApplication().runReadAction(new Computable<Collection<PsiAnnotation>>() { |
| @Override |
| public Collection<PsiAnnotation> compute() { |
| if (useScope instanceof GlobalSearchScope) { |
| return JavaAnnotationIndex.getInstance().get(annClass.getName(), annClass.getProject(), (GlobalSearchScope)useScope); |
| } |
| |
| final List<PsiAnnotation> result = ContainerUtil.newArrayList(); |
| for (PsiElement element : ((LocalSearchScope)useScope).getScope()) { |
| result.addAll(PsiTreeUtil.findChildrenOfType(element, PsiAnnotation.class)); |
| } |
| return result; |
| } |
| }); |
| } |
| |
| public static boolean isInstanceof(PsiElement owner, Class<? extends PsiModifierListOwner>[] types) { |
| for (Class<? extends PsiModifierListOwner> type : types) { |
| if(type.isInstance(owner)) return true; |
| } |
| return false; |
| } |
| |
| } |