Java tutorial
//package com.java2s; /* * Copyright (C) 2011 University of Washington * * 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.File; public class Main { public static boolean deletePlaintextFiles(File instanceXml) { // NOTE: assume the directory containing the instanceXml contains ONLY // files related to this one instance. File instanceDir = instanceXml.getParentFile(); boolean allSuccessful = true; // encrypt files that do not end with ".enc", and do not start with "."; // ignore directories File[] allFiles = instanceDir.listFiles(); for (File f : allFiles) { if (f.equals(instanceXml)) continue; // don't touch instance file if (f.isDirectory()) continue; // don't handle directories if (!f.getName().endsWith(".enc")) { // not an encrypted file -- delete it! allSuccessful = allSuccessful & f.delete(); // DO NOT // short-circuit } } return allSuccessful; } }