1 /*
2 * Copyright (c) 2006, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /* @test
25 * @bug 6442088
26 * @summary Change default DNS caching behavior for code not running under
27 * security manager.
28 * @compile -XDignore.symbol.file=true SimpleNameService.java
29 * SimpleNameServiceDescriptor.java
30 * @run main/othervm/timeout=200 -Dsun.net.inetaddr.ttl=20 -Dsun.net.spi.nameservice.provider.1=simple,sun DefaultCaching
31 */
32 import java.net.InetAddress;
33 import java.net.UnknownHostException;
34 import java.security.Security;
35
36 public class DefaultCaching {
37
38 public static void main(String args[]) throws Exception {
39
40 // name service needs to resolve this.
41 SimpleNameService.put("theclub", "129.156.220.219");
42
43 test ("theclub", "129.156.220.219", true); // lk: 1
44 test ("luster", "1.16.20.2", false); // lk: 2
45
46 // name service now needs to know about luster
47 SimpleNameService.put("luster", "10.5.18.21");
48
49 test ("luster", "1.16.20.2", false); // lk: 2
50 sleep (10+1);
51 test("luster", "10.5.18.21", true, 3); // lk: 3
52 sleep (5);
53
54 SimpleNameService.put("foo", "10.5.18.22");
55 SimpleNameService.put("theclub", "129.156.220.1");
56
57 test ("theclub", "129.156.220.219", true, 3);
58 test ("luster", "10.5.18.21", true, 3);
59 test ("bar", "10.5.18.22", false, 4);
60 test ("foo", "10.5.18.22", true, 5);
61
62 // now delay to see if theclub has expired
63 sleep (5);
64
65 test ("foo", "10.5.18.22", true, 5);
66 test ("theclub", "129.156.220.1", true, 6);
67
68 sleep (11);
69 // now see if luster has expired
70 test ("luster", "10.5.18.21", true, 7);
71 test ("theclub", "129.156.220.1", true, 7);
72
73 // now delay to see if 3rd has expired
74 sleep (10+6);
75
76 test ("theclub", "129.156.220.1", true, 8);
77 test ("luster", "10.5.18.21", true, 8);
78 test ("foo", "10.5.18.22", true, 9);
79 }
80
81 /* throws RuntimeException if it fails */
82
83 static void test (String host, String address,
84 boolean shouldSucceed, int count) {
85 test (host, address, shouldSucceed);
86 int got = SimpleNameService.lookupCalls();
87 if (got != count) {
88 throw new RuntimeException ("lookups exp/got: " + count+"/"+got);
89 }
90 }
91
92 static void sleep (int seconds) {
93 try {
94 Thread.sleep (seconds * 1000);
95 } catch (InterruptedException e) {}
96 }
97
98 static void test (String host, String address, boolean shouldSucceed) {
99 InetAddress addr = null;
100 try {
101 addr = InetAddress.getByName (host);
102 if (!shouldSucceed) {
103 throw new RuntimeException (host+":"+address+": should fail");
104
105 }
106 if (!address.equals(addr.getHostAddress())) {
107 throw new RuntimeException(host+":"+address+": compare failed");
108 }
109 } catch (UnknownHostException e) {
110 if (shouldSucceed) {
111 throw new RuntimeException(host+":"+address+": should succeed");
112 }
113 }
114 }
115
116 }