com.fizzed.crux.util.MoreFiles Maven / Gradle / Ivy
/*
* Copyright 2017 Fizzed, 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.
*/
package com.fizzed.crux.util;
import java.io.IOException;
import java.nio.file.FileVisitResult;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.SimpleFileVisitor;
import java.nio.file.attribute.BasicFileAttributes;
/**
* Methods that java.nio.Files should include.
*
* @author jjlauer
*/
public class MoreFiles {
/**
* Deletes a directory (and all the files in it).
*
* @param dir the directory to delete
* @throws java.io.IOException
*/
static public void deleteDirectory(Path dir) throws IOException {
Files.walkFileTree(dir, new SimpleFileVisitor() {
@Override
public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
Files.deleteIfExists(file);
return FileVisitResult.CONTINUE;
}
@Override
public FileVisitResult postVisitDirectory(Path dir, IOException exc) throws IOException {
Files.deleteIfExists(dir);
return FileVisitResult.CONTINUE;
}
});
}
/**
* Deletes a directory if it exists (and all the files in it).
*
* @param dir the directory to delete
* @return True if deleted or false if it the dir did not exist
* @throws java.io.IOException
*/
static public boolean deleteDirectoryIfExists(Path dir) throws IOException {
if (!Files.exists(dir)) {
return false;
}
deleteDirectory(dir);
return true;
}
}