Here you can find the source of deleteFilesRecursively(Path path, final PathMatcher pathMatcher)
Parameter | Description |
---|---|
IOException | If it fails traversing or deleting the tree. |
public static int deleteFilesRecursively(Path path, final PathMatcher pathMatcher) throws IOException
//package com.java2s; /*// w w w. ja v a 2 s. c o m * Copyright (C) 2016 Google Inc. * * 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. */ import java.io.IOException; import java.nio.file.FileVisitResult; import java.nio.file.Files; import java.nio.file.Path; import java.nio.file.PathMatcher; import java.nio.file.SimpleFileVisitor; import java.nio.file.attribute.BasicFileAttributes; import java.util.concurrent.atomic.AtomicInteger; public class Main { /** * Deletes the files that match the PathMatcher. * * <p> Note that this method doesn't delete the directories, only the files inside those * directories. This is fine for our use case since the majority of SCMs don't care about empty * directories. * * @throws IOException If it fails traversing or deleting the tree. */ public static int deleteFilesRecursively(Path path, final PathMatcher pathMatcher) throws IOException { final AtomicInteger counter = new AtomicInteger(); Files.walkFileTree(path, new SimpleFileVisitor<Path>() { @Override public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException { if (pathMatcher.matches(file)) { Files.delete(file); counter.incrementAndGet(); } return FileVisitResult.CONTINUE; } }); return counter.get(); } }