| /* |
| * 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.openapi.roots.libraries; |
| |
| import com.intellij.openapi.roots.OrderRootType; |
| import com.intellij.openapi.vfs.JarFileSystem; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.openapi.vfs.VirtualFileManager; |
| import com.intellij.util.text.StringTokenizer; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.Arrays; |
| import java.util.List; |
| |
| /** |
| * author: lesya |
| */ |
| public class LibrariesHelperImpl extends LibrariesHelper { |
| |
| @Override |
| public VirtualFile findJarByClass(Library library, @NonNls String fqn) { |
| return library == null ? null : findRootByClass(Arrays.asList(library.getFiles(OrderRootType.CLASSES)), fqn); |
| } |
| |
| @Nullable |
| @Override |
| public VirtualFile findRootByClass(List<VirtualFile> roots, String fqn) { |
| for (VirtualFile file : roots) { |
| if (findInFile(file, new StringTokenizer(fqn, "."))) return file; |
| } |
| return null; |
| } |
| |
| @Override |
| public boolean isClassAvailableInLibrary(Library library, String fqn) { |
| final String[] urls = library.getUrls(OrderRootType.CLASSES); |
| return isClassAvailable(urls, fqn); |
| } |
| |
| @Override |
| public boolean isClassAvailable(final String[] urls, String fqn) { |
| for (String url : urls) { |
| VirtualFile file = VirtualFileManager.getInstance().findFileByUrl(url); |
| if (file == null) continue; |
| if (!(file.getFileSystem() instanceof JarFileSystem) && !file.isDirectory()) { |
| file = JarFileSystem.getInstance().getJarRootForLocalFile(file); |
| } |
| if (file == null) continue; |
| if (findInFile(file, new StringTokenizer(fqn, "."))) return true; |
| } |
| return false; |
| } |
| |
| private static boolean findInFile(VirtualFile root, final StringTokenizer filePath) { |
| if (!filePath.hasMoreTokens()) return true; |
| @NonNls String name = filePath.nextToken(); |
| if (!filePath.hasMoreTokens()) { |
| name += ".class"; |
| } |
| final VirtualFile child = root.findChild(name); |
| return child != null && findInFile(child, filePath); |
| } |
| |
| } |