1 /*
2 * Copyright (c) 2009, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 import java.io.*;
27 import java.nio.*;
28 import java.util.*;
29 import java.util.zip.*;
30
31 public class LargeZip {
32 // If true, don't delete large ZIP file created for test.
33 static final boolean debug = System.getProperty("debug") != null;
34
35 //static final int DATA_LEN = 1024 * 1024;
36 static final int DATA_LEN = 80 * 1024;
37 static final int DATA_SIZE = 8;
38
39 static long fileSize = 6L * 1024L * 1024L * 1024L; // 6GB
40
41 static boolean userFile = false;
42
43 static byte[] data;
44 static File largeFile;
45 static String lastEntryName;
46
47 /* args can be empty, in which case check a 3 GB file which is created for
48 * this test (and then deleted). Or it can be a number, in which case
49 * that designates the size of the file that's created for this test (and
50 * then deleted). Or it can be the name of a file to use for the test, in
51 * which case it is *not* deleted. Note that in this last case, the data
52 * comparison might fail.
53 */
54 static void realMain (String[] args) throws Throwable {
55 if (args.length > 0) {
56 try {
57 fileSize = Long.parseLong(args[0]);
58 System.out.println("Testing with file of size " + fileSize);
59 } catch (NumberFormatException ex) {
60 largeFile = new File(args[0]);
61 if (!largeFile.exists()) {
62 throw new Exception("Specified file " + args[0] + " does not exist");
63 }
64 userFile = true;
65 System.out.println("Testing with user-provided file " + largeFile);
66 }
67 }
68 File testDir = null;
69 if (largeFile == null) {
70 testDir = new File(System.getProperty("test.scratch", "."),
71 "LargeZip");
72 if (testDir.exists()) {
73 if (!testDir.delete()) {
74 throw new Exception("Cannot delete already-existing test directory");
75 }
76 }
77 check(!testDir.exists() && testDir.mkdirs());
78 largeFile = new File(testDir, "largezip.zip");
79 createLargeZip();
80 }
81
82 readLargeZip1();
83 readLargeZip2();
84
85 if (!userFile && !debug) {
86 check(largeFile.delete());
87 check(testDir.delete());
88 }
89 }
90
91 static void createLargeZip() throws Throwable {
92 int iterations = DATA_LEN / DATA_SIZE;
93 ByteBuffer bb = ByteBuffer.allocate(DATA_SIZE);
94 ByteArrayOutputStream baos = new ByteArrayOutputStream();
95 for (int i = 0; i < iterations; i++) {
96 bb.putDouble(0, Math.random());
97 baos.write(bb.array(), 0, DATA_SIZE);
98 }
99 data = baos.toByteArray();
100
101 try (FileOutputStream fos = new FileOutputStream(largeFile);
102 BufferedOutputStream bos = new BufferedOutputStream(fos);
103 ZipOutputStream zos = new ZipOutputStream(bos))
104 {
105 long length = 0;
106 while (length < fileSize) {
107 ZipEntry ze = new ZipEntry("entry-" + length);
108 lastEntryName = ze.getName();
109 zos.putNextEntry(ze);
110 zos.write(data, 0, data.length);
111 zos.closeEntry();
112 length = largeFile.length();
113 }
114 System.out.println("Last entry written is " + lastEntryName);
115 }
116 }
117
118 static void readLargeZip1() throws Throwable {
119 ZipFile zipFile = new ZipFile(largeFile);
120 ZipEntry entry = null;
121 String entryName = null;
122 int count = 0;
123 Enumeration<? extends ZipEntry> entries = zipFile.entries();
124 while (entries.hasMoreElements()) {
125 entry = entries.nextElement();
126 entryName = entry.getName();
127 count++;
128 }
129 System.out.println("Number of entries read: " + count);
130 System.out.println("Last entry read is " + entryName);
131 check(!entry.isDirectory());
132 if (check(entryName.equals(lastEntryName))) {
133 ByteArrayOutputStream baos = new ByteArrayOutputStream();
134 InputStream is = zipFile.getInputStream(entry);
135 byte buf[] = new byte[4096];
136 int len;
137 while ((len = is.read(buf)) >= 0) {
138 baos.write(buf, 0, len);
139 }
140 baos.close();
141 is.close();
142 check(Arrays.equals(data, baos.toByteArray()));
143 }
144 }
145
146
147 static void readLargeZip2() throws Throwable {
148 try (FileInputStream fis = new FileInputStream(largeFile);
149 BufferedInputStream bis = new BufferedInputStream(fis);
150 ZipInputStream zis = new ZipInputStream(bis))
151 {
152 ZipEntry entry = null;
153 String entryName = null;
154 int count = 0;
155 while ((entry = zis.getNextEntry()) != null) {
156 entryName = entry.getName();
157 if (entryName.equals(lastEntryName)) {
158 break;
159 }
160 count++;
161 }
162 System.out.println("Number of entries read: " + count);
163 System.out.println("Last entry read is " + entryName);
164 check(!entry.isDirectory());
165
166 ByteArrayOutputStream baos = new ByteArrayOutputStream();
167
168 byte buf[] = new byte[4096];
169 int len;
170 while ((len = zis.read(buf)) >= 0) {
171 baos.write(buf, 0, len);
172 }
173 baos.close();
174 check(Arrays.equals(data, baos.toByteArray()));
175 check(zis.getNextEntry() == null);
176 }
177 }
178
179
180 //--------------------- Infrastructure ---------------------------
181 static volatile int passed = 0, failed = 0;
182 static void pass() {passed++;}
183 static void pass(String msg) {System.out.println(msg); passed++;}
184 static void fail() {failed++; Thread.dumpStack();}
185 static void fail(String msg) {System.out.println(msg); fail();}
186 static void unexpected(Throwable t) {failed++; t.printStackTrace();}
187 static void unexpected(Throwable t, String msg) {
188 System.out.println(msg); failed++; t.printStackTrace();}
189 static boolean check(boolean cond) {if (cond) pass(); else fail(); return cond;}
190 static void equal(Object x, Object y) {
191 if (x == null ? y == null : x.equals(y)) pass();
192 else fail(x + " not equal to " + y);}
193 public static void main(String[] args) throws Throwable {
194 try {realMain(args);} catch (Throwable t) {unexpected(t);}
195 System.out.println("\nPassed = " + passed + " failed = " + failed);
196 if (failed > 0) throw new AssertionError("Some tests failed");}
197 }