| /* |
| * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code 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 General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.io.*; |
| import java.nio.*; |
| import java.util.*; |
| import java.util.zip.*; |
| |
| public class LargeZipFile { |
| // If true, don't delete large ZIP file created for test. |
| static final boolean debug = System.getProperty("debug") != null; |
| |
| static final int DATA_LEN = 1024 * 1024; |
| static final int DATA_SIZE = 8; |
| |
| static long fileSize = 3L * 1024L * 1024L * 1024L; // 3GB |
| |
| static boolean userFile = false; |
| |
| static byte[] data; |
| static File largeFile; |
| static String lastEntryName; |
| |
| /* args can be empty, in which case check a 3 GB file which is created for |
| * this test (and then deleted). Or it can be a number, in which case |
| * that designates the size of the file that's created for this test (and |
| * then deleted). Or it can be the name of a file to use for the test, in |
| * which case it is *not* deleted. Note that in this last case, the data |
| * comparison might fail. |
| */ |
| static void realMain (String[] args) throws Throwable { |
| if (args.length > 0) { |
| try { |
| fileSize = Long.parseLong(args[0]); |
| System.out.println("Testing with file of size " + fileSize); |
| } catch (NumberFormatException ex) { |
| largeFile = new File(args[0]); |
| if (!largeFile.exists()) { |
| throw new Exception("Specified file " + args[0] + " does not exist"); |
| } |
| userFile = true; |
| System.out.println("Testing with user-provided file " + largeFile); |
| } |
| } |
| File testDir = null; |
| if (largeFile == null) { |
| testDir = new File(System.getProperty("test.scratch", "."), |
| "LargeZip"); |
| if (testDir.exists()) { |
| if (!testDir.delete()) { |
| throw new Exception("Cannot delete already-existing test directory"); |
| } |
| } |
| check(!testDir.exists() && testDir.mkdirs()); |
| largeFile = new File(testDir, "largezip.zip"); |
| createLargeZip(); |
| } |
| |
| readLargeZip(); |
| |
| if (!userFile && !debug) { |
| check(largeFile.delete()); |
| check(testDir.delete()); |
| } |
| } |
| |
| static void createLargeZip() throws Throwable { |
| int iterations = DATA_LEN / DATA_SIZE; |
| ByteBuffer bb = ByteBuffer.allocate(DATA_SIZE); |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| for (int i = 0; i < iterations; i++) { |
| bb.putDouble(0, Math.random()); |
| baos.write(bb.array(), 0, DATA_SIZE); |
| } |
| data = baos.toByteArray(); |
| try (FileOutputStream fos = new FileOutputStream(largeFile); |
| BufferedOutputStream bos = new BufferedOutputStream(fos); |
| ZipOutputStream zos = new ZipOutputStream(bos)) |
| { |
| long length = 0; |
| while (length < fileSize) { |
| ZipEntry ze = new ZipEntry("entry-" + length); |
| lastEntryName = ze.getName(); |
| zos.putNextEntry(ze); |
| zos.write(data, 0, data.length); |
| zos.closeEntry(); |
| length = largeFile.length(); |
| } |
| System.out.println("Last entry written is " + lastEntryName); |
| } |
| } |
| |
| static void readLargeZip() throws Throwable { |
| try (ZipFile zipFile = new ZipFile(largeFile)) { |
| ZipEntry entry = null; |
| String entryName = null; |
| int count = 0; |
| Enumeration<? extends ZipEntry> entries = zipFile.entries(); |
| while (entries.hasMoreElements()) { |
| entry = entries.nextElement(); |
| entryName = entry.getName(); |
| count++; |
| } |
| System.out.println("Number of entries read: " + count); |
| System.out.println("Last entry read is " + entryName); |
| check(!entry.isDirectory()); |
| if (check(entryName.equals(lastEntryName))) { |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| InputStream is = zipFile.getInputStream(entry); |
| byte buf[] = new byte[4096]; |
| int len; |
| while ((len = is.read(buf)) >= 0) { |
| baos.write(buf, 0, len); |
| } |
| baos.close(); |
| is.close(); |
| check(Arrays.equals(data, baos.toByteArray())); |
| } |
| } |
| } |
| |
| //--------------------- Infrastructure --------------------------- |
| static volatile int passed = 0, failed = 0; |
| static void pass() {passed++;} |
| static void pass(String msg) {System.out.println(msg); passed++;} |
| static void fail() {failed++; Thread.dumpStack();} |
| static void fail(String msg) {System.out.println(msg); fail();} |
| static void unexpected(Throwable t) {failed++; t.printStackTrace();} |
| static void unexpected(Throwable t, String msg) { |
| System.out.println(msg); failed++; t.printStackTrace();} |
| static boolean check(boolean cond) {if (cond) pass(); else fail(); return cond;} |
| static void equal(Object x, Object y) { |
| if (x == null ? y == null : x.equals(y)) pass(); |
| else fail(x + " not equal to " + y);} |
| public static void main(String[] args) throws Throwable { |
| try {realMain(args);} catch (Throwable t) {unexpected(t);} |
| System.out.println("\nPassed = " + passed + " failed = " + failed); |
| if (failed > 0) throw new AssertionError("Some tests failed");} |
| } |