| /* |
| * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.tools.jaotc.collect; |
| |
| import java.io.IOException; |
| import java.net.*; |
| import java.nio.file.*; |
| import java.util.HashMap; |
| |
| public class FileSupport { |
| public boolean exists(Path path) { |
| return Files.exists(path); |
| } |
| |
| public boolean isDirectory(Path path) { |
| return Files.isDirectory(path); |
| } |
| |
| private static FileSystem makeJarFileSystem(Path path) { |
| try { |
| return FileSystems.newFileSystem(makeJarFileURI(path), new HashMap<>()); |
| } catch (IOException e) { |
| throw new InternalError(e); |
| } |
| } |
| |
| private static URI makeJarFileURI(Path path) { |
| try { |
| String name = path.toAbsolutePath().toString(); |
| name = name.replace('\\', '/'); |
| return new URI("jar:file:///" + name + "!/"); |
| } catch (URISyntaxException e) { |
| throw new InternalError(e); |
| } |
| } |
| |
| public ClassLoader createClassLoader(Path path, ClassLoader parent) { |
| try { |
| return URLClassLoader.newInstance(buildUrls(path), parent); |
| } catch (MalformedURLException e) { |
| throw new InternalError(e); |
| } |
| } |
| |
| public ClassLoader createClassLoader(Path path) throws MalformedURLException { |
| return URLClassLoader.newInstance(buildUrls(path)); |
| } |
| |
| private static URL[] buildUrls(Path path) throws MalformedURLException { |
| return new URL[]{path.toUri().toURL()}; |
| } |
| |
| public Path getJarFileSystemRoot(Path jarFile) { |
| FileSystem fileSystem = makeJarFileSystem(jarFile); |
| return fileSystem.getPath("/"); |
| } |
| |
| public boolean isAbsolute(Path entry) { |
| return entry.isAbsolute(); |
| } |
| |
| public Path getSubDirectory(FileSystem fileSystem, Path root, Path path) throws IOException { |
| DirectoryStream<Path> paths = fileSystem.provider().newDirectoryStream(root, null); |
| for (Path entry : paths) { |
| Path relative = root.relativize(entry); |
| if (relative.equals(path)) { |
| return entry; |
| } |
| } |
| return null; |
| } |
| } |