Java tutorial
/* * The MIT License * * Copyright (C) 2010-2011 by Anthony Robinson * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package jenkins.plugins.publish_over.helper; import org.apache.commons.io.FileUtils; import java.io.File; import java.io.IOException; import java.util.Arrays; import java.util.Random; public class RandomFile { private static final int DEFAULT_FILE_SIZE = 200; private static Random random = new Random(); private final File file; private final byte[] contents; public RandomFile(final File directory, final String filename) { this(new File(directory, filename)); } public RandomFile(final File file) { this(file, DEFAULT_FILE_SIZE); } public RandomFile(final File file, final int size) { this.file = file; contents = new byte[size]; random.nextBytes(contents); final File parent = file.getParentFile(); if (!parent.exists() && !parent.mkdirs()) throw new RuntimeException("Failed to make parent directory [" + parent.getAbsolutePath() + "]"); try { FileUtils.writeByteArrayToFile(file, contents); } catch (IOException ioe) { throw new RuntimeException("Failed to create file [" + file.getAbsolutePath() + "]", ioe); } } public File getFile() { return file; } public byte[] getContents() { return Arrays.copyOf(contents, contents.length); } public String getFileName() { return file.getName(); } }