Here you can find the source of zipDirectory(File dir, String base, ZipOutputStream zout)
private static void zipDirectory(File dir, String base, ZipOutputStream zout) throws IOException
//package com.java2s; /******************************************************************************* * CogTool Copyright Notice and Distribution Terms * CogTool 1.3, Copyright (c) 2005-2013 Carnegie Mellon University * This software is distributed under the terms of the FSF Lesser * Gnu Public License (see LGPL.txt). //from w ww. ja v a2s. c o m * * CogTool is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; either version 2.1 of the License, or * (at your option) any later version. * * CogTool is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with CogTool; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA * * CogTool makes use of several third-party components, with the * following notices: * * Eclipse SWT version 3.448 * Eclipse GEF Draw2D version 3.2.1 * * Unless otherwise indicated, all Content made available by the Eclipse * Foundation is provided to you under the terms and conditions of the Eclipse * Public License Version 1.0 ("EPL"). A copy of the EPL is provided with this * Content and is also available at http://www.eclipse.org/legal/epl-v10.html. * * CLISP version 2.38 * * Copyright (c) Sam Steingold, Bruno Haible 2001-2006 * This software is distributed under the terms of the FSF Gnu Public License. * See COPYRIGHT file in clisp installation folder for more information. * * ACT-R 6.0 * * Copyright (c) 1998-2007 Dan Bothell, Mike Byrne, Christian Lebiere & * John R Anderson. * This software is distributed under the terms of the FSF Lesser * Gnu Public License (see LGPL.txt). * * Apache Jakarta Commons-Lang 2.1 * * This product contains software developed by the Apache Software Foundation * (http://www.apache.org/) * * jopt-simple version 1.0 * * Copyright (c) 2004-2013 Paul R. 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U.S. * See the LICENSE file in the jre folder for more information. ******************************************************************************/ import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.util.zip.ZipEntry; import java.util.zip.ZipOutputStream; public class Main { private static void zipDirectory(File dir, String base, ZipOutputStream zout) throws IOException { // list all File[] files = dir.listFiles(); base += dir.getName() + "/"; if (files.length > 0) { // if there are files in this directory, add them (this dir is implicit) for (File file : files) { if (file.isDirectory()) { // recur on directories zipDirectory(file, base, zout); } else { // add files to the stream zipOneFile(file, base, zout); } } } else { // we have to add this dir explicitly as an entry // Build proper entry name String name = base + dir.getName() + '/'; // Create a ZipEntry ZipEntry entry = new ZipEntry(name); entry.setTime(dir.lastModified()); // Put the entry into the zip (actually, this just writes the header) zout.putNextEntry(entry); // Close off the entry (actually, this just writes more header info) zout.closeEntry(); } } private static void zipOneFile(File file, String base, ZipOutputStream zout) throws IOException { // Build proper entry name String name = base + file.getName(); // Create a ZipEntry ZipEntry entry = new ZipEntry(name); entry.setTime(file.lastModified()); // Put the entry into the zip (actually, this just writes the header) zout.putNextEntry(entry); // Input stream for reading the file FileInputStream in = new FileInputStream(file); try { // Copy the file contents to the zip, 100k at a time long size = file.length(); int chunkSize = 100 * 1024; byte[] buff = new byte[chunkSize]; int len = chunkSize; for (; size > 0; size -= len) { if (size < chunkSize) { len = (int) size; } else { len = chunkSize; } int actualBytes = 0; int off = 0; // System.out.print("" + '\n' + name + ' '); do { actualBytes = in.read(buff, off, len); if (actualBytes == -1) { zout.write(buff, off, len); // System.out.print("!" + len + ':' + actualBytes + ':' + off + ' '); throw new RuntimeException("Bad math in zip!"); } else { zout.write(buff, off, actualBytes); // System.out.print("" + len + ':' + actualBytes + ':' + off + ' '); } len -= actualBytes; size -= actualBytes; off += actualBytes; } while ((len > 0)); } } finally { // Close off the input stream in.close(); } // Close off the entry (actually, this just writes more header info) zout.closeEntry(); } }