| /* |
| * Copyright 2000-2012 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.file.impl; |
| |
| import com.intellij.ProjectTopics; |
| import com.intellij.ide.highlighter.JavaClassFileType; |
| import com.intellij.openapi.Disposable; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.roots.*; |
| import com.intellij.openapi.util.Comparing; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.openapi.vfs.VirtualFileWithId; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.PsiManagerEx; |
| import com.intellij.psi.impl.file.PsiPackageImpl; |
| import com.intellij.psi.impl.java.stubs.index.JavaFullClassNameIndex; |
| import com.intellij.psi.search.GlobalSearchScope; |
| import com.intellij.psi.util.PsiUtilCore; |
| import com.intellij.util.Query; |
| import com.intellij.util.containers.ConcurrentHashMap; |
| import com.intellij.util.containers.ContainerUtil; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| import org.jetbrains.jps.model.java.JavaModuleSourceRootTypes; |
| |
| import java.util.*; |
| |
| /** |
| * Author: dmitrylomov |
| */ |
| public class JavaFileManagerImpl implements JavaFileManager, Disposable { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.file.impl.JavaFileManagerImpl"); |
| private final ConcurrentHashMap<GlobalSearchScope, PsiClass> myCachedObjectClassMap = new ConcurrentHashMap<GlobalSearchScope, PsiClass>(); |
| private final PsiManagerEx myManager; |
| private volatile Set<String> myNontrivialPackagePrefixes = null; |
| private boolean myDisposed = false; |
| private final PackageIndex myPackageIndex; |
| |
| public JavaFileManagerImpl(Project project) { |
| myManager = (PsiManagerEx)PsiManager.getInstance(project); |
| myPackageIndex = PackageIndex.getInstance(myManager.getProject()); |
| project.getMessageBus().connect().subscribe(ProjectTopics.PROJECT_ROOTS, new ModuleRootAdapter() { |
| @Override |
| public void rootsChanged(final ModuleRootEvent event) { |
| myNontrivialPackagePrefixes = null; |
| } |
| }); |
| |
| myManager.registerRunnableToRunOnChange(new Runnable() { |
| @Override |
| public void run() { |
| myCachedObjectClassMap.clear(); |
| } |
| }); |
| } |
| |
| @Override |
| public void dispose() { |
| myDisposed = true; |
| myCachedObjectClassMap.clear(); |
| } |
| |
| @Override |
| @Nullable |
| public PsiPackage findPackage(@NotNull String packageName) { |
| Query<VirtualFile> dirs = myPackageIndex.getDirsByPackageName(packageName, true); |
| if (dirs.findFirst() == null) return null; |
| return new PsiPackageImpl(myManager, packageName); |
| } |
| |
| @Override |
| public PsiClass[] findClasses(@NotNull String qName, @NotNull final GlobalSearchScope scope) { |
| final Collection<PsiClass> classes = JavaFullClassNameIndex.getInstance().get(qName.hashCode(), myManager.getProject(), scope); |
| if (classes.isEmpty()) return PsiClass.EMPTY_ARRAY; |
| List<PsiClass> result = new ArrayList<PsiClass>(classes.size()); |
| for (PsiClass aClass : classes) { |
| final String qualifiedName = aClass.getQualifiedName(); |
| if (qualifiedName == null || !qualifiedName.equals(qName)) continue; |
| |
| PsiUtilCore.ensureValid(aClass); |
| PsiFile file = aClass.getContainingFile(); |
| if (file == null) { |
| throw new AssertionError("No file for class: " + aClass + " of " + aClass.getClass()); |
| } |
| |
| VirtualFile vFile = file.getVirtualFile(); |
| if (!hasAcceptablePackage(vFile)) continue; |
| |
| result.add(aClass); |
| } |
| |
| int count = result.size(); |
| if (count == 0) return PsiClass.EMPTY_ARRAY; |
| if (count == 1) return new PsiClass[] {result.get(0)}; |
| |
| ContainerUtil.quickSort(result, new Comparator<PsiClass>() { |
| @Override |
| public int compare(PsiClass o1, PsiClass o2) { |
| return scope.compare(o2.getContainingFile().getVirtualFile(), o1.getContainingFile().getVirtualFile()); |
| } |
| }); |
| |
| return result.toArray(new PsiClass[count]); |
| } |
| |
| @Override |
| @Nullable |
| public PsiClass findClass(@NotNull String qName, @NotNull GlobalSearchScope scope) { |
| LOG.assertTrue(!myDisposed); |
| |
| if (CommonClassNames.JAVA_LANG_OBJECT.equals(qName)) { // optimization |
| PsiClass cached = myCachedObjectClassMap.get(scope); |
| if (cached == null) { |
| cached = findClassInIndex(qName, scope); |
| if (cached != null) { |
| cached = myCachedObjectClassMap.cacheOrGet(scope, cached); |
| } |
| } |
| |
| return cached; |
| } |
| |
| return findClassInIndex(qName, scope); |
| } |
| |
| @Nullable |
| private PsiClass findClassInIndex(String qName, GlobalSearchScope scope) { |
| VirtualFile bestFile = null; |
| PsiClass bestClass = null; |
| final Collection<PsiClass> classes = JavaFullClassNameIndex.getInstance().get(qName.hashCode(), myManager.getProject(), scope); |
| |
| for (PsiClass aClass : classes) { |
| PsiFile file = aClass.getContainingFile(); |
| if (file == null) { |
| LOG.error("aClass=" + aClass + " of class " + aClass.getClass() + "; valid=" + aClass.isValid()); |
| continue; |
| } |
| final boolean valid = aClass.isValid(); |
| VirtualFile vFile = file.getVirtualFile(); |
| if (!valid) { |
| LOG.error("Invalid class " + aClass + "; " + |
| file + (file.isValid() ? "" : " (invalid)") + |
| "; virtualFile:" + vFile + |
| (vFile != null && !vFile.isValid() ? " (invalid)" : "") + |
| "; id=" + (vFile == null ? 0 : ((VirtualFileWithId)vFile).getId()), |
| new PsiInvalidElementAccessException(aClass)); |
| continue; |
| } |
| |
| final String qualifiedName = aClass.getQualifiedName(); |
| if (qualifiedName == null || !qualifiedName.equals(qName)) continue; |
| |
| |
| if (!hasAcceptablePackage(vFile)) continue; |
| if (bestFile == null || scope.compare(vFile, bestFile) > 0) { |
| bestFile = vFile; |
| bestClass = aClass; |
| } |
| } |
| return bestClass; |
| } |
| |
| private boolean hasAcceptablePackage(final VirtualFile vFile) { |
| if (vFile.getFileType() == JavaClassFileType.INSTANCE) { |
| // See IDEADEV-5626 |
| final VirtualFile root = ProjectRootManager.getInstance(myManager.getProject()).getFileIndex().getClassRootForFile(vFile); |
| VirtualFile parent = vFile.getParent(); |
| final PsiNameHelper nameHelper = PsiNameHelper.getInstance(myManager.getProject()); |
| while (parent != null && !Comparing.equal(parent, root)) { |
| if (!nameHelper.isIdentifier(parent.getName())) return false; |
| parent = parent.getParent(); |
| } |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public Collection<String> getNonTrivialPackagePrefixes() { |
| Set<String> names = myNontrivialPackagePrefixes; |
| if (names == null) { |
| names = new HashSet<String>(); |
| final ProjectRootManager rootManager = ProjectRootManager.getInstance(myManager.getProject()); |
| final List<VirtualFile> sourceRoots = rootManager.getModuleSourceRoots(JavaModuleSourceRootTypes.SOURCES); |
| final ProjectFileIndex fileIndex = rootManager.getFileIndex(); |
| for (final VirtualFile sourceRoot : sourceRoots) { |
| final String packageName = fileIndex.getPackageNameByDirectory(sourceRoot); |
| if (packageName != null && !packageName.isEmpty()) { |
| names.add(packageName); |
| } |
| } |
| myNontrivialPackagePrefixes = names; |
| } |
| return names; |
| } |
| |
| } |