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Lucene example source code file (FileUtils.java)

This example Lucene source code file (FileUtils.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Lucene tags/keywords

file, file, fileutils, fileutils, io, ioexception, ioexception

The Lucene FileUtils.java source code

package org.apache.lucene.benchmark.byTask.utils;

 * 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.

import java.io.File;
import java.io.IOException;

 * File utilities.
public class FileUtils {

   * Delete files and directories, even if non-empty.
   * @param dir file or directory
   * @return true on success, false if no or part of files have been deleted
   * @throws java.io.IOException
  public static boolean fullyDelete(File dir) throws IOException {
    if (dir == null || !dir.exists()) return false;
    File contents[] = dir.listFiles();
    if (contents != null) {
      for (int i = 0; i < contents.length; i++) {
        if (contents[i].isFile()) {
          if (!contents[i].delete()) {
            return false;
        } else {
          if (!fullyDelete(contents[i])) {
            return false;
    return dir.delete();


Other Lucene examples (source code examples)

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