| /* |
| * 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.nio.file.*; |
| import java.nio.file.attribute.BasicFileAttributes; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| |
| import static java.nio.file.FileVisitResult.CONTINUE; |
| |
| /** |
| * {@link FileVisitor} implementation to find class files recursively. |
| */ |
| public final class FileSystemFinder extends SimpleFileVisitor<Path> implements Iterable<Path> { |
| private final ArrayList<Path> fileNames = new ArrayList<>(); |
| private final PathMatcher filter; |
| |
| public FileSystemFinder(Path combinedPath, PathMatcher filter) { |
| this.filter = filter; |
| try { |
| Files.walkFileTree(combinedPath, this); |
| } catch (IOException e) { |
| throw new InternalError(e); |
| } |
| } |
| |
| /** |
| * Compares the glob pattern against the file name. |
| */ |
| private void find(Path file) { |
| Path name = file.getFileName(); |
| if (name != null && filter.matches(name)) { |
| fileNames.add(file); |
| } |
| } |
| |
| @Override |
| public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) { |
| find(file); |
| return CONTINUE; |
| } |
| |
| @Override |
| public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attrs) { |
| find(dir); |
| return CONTINUE; |
| } |
| |
| @Override |
| public Iterator<Path> iterator() { |
| return fileNames.iterator(); |
| } |
| } |