| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.cassandra.utils; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.nio.file.FileVisitResult; |
| import java.nio.file.Path; |
| import java.nio.file.SimpleFileVisitor; |
| import java.nio.file.attribute.BasicFileAttributes; |
| |
| /** |
| * Walks directory recursively, summing up total contents of files within. |
| */ |
| public class DirectorySizeCalculator extends SimpleFileVisitor<Path> |
| { |
| protected volatile long size = 0; |
| protected final File path; |
| |
| public DirectorySizeCalculator(File path) |
| { |
| super(); |
| this.path = path; |
| } |
| |
| public boolean isAcceptable(Path file) |
| { |
| return true; |
| } |
| |
| @Override |
| public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException |
| { |
| if (isAcceptable(file)) |
| size += attrs.size(); |
| return FileVisitResult.CONTINUE; |
| } |
| |
| @Override |
| public FileVisitResult visitFileFailed(Path file, IOException exc) throws IOException |
| { |
| return FileVisitResult.CONTINUE; |
| } |
| |
| public long getAllocatedSize() |
| { |
| return size; |
| } |
| } |