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11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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13  * accompanied this code).
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23 
24 /*
25  * @test
26  * @bug 4092605
27  * @summary Test HttpURLConnection setIfModifiedSince
28  *
29  */
30 
31 import java.net.*;
32 import java.io.*;
33 
34 public class Modified implements Runnable {
35 
36     ServerSocket ss;
37 
run()38     public void run() {
39         try {
40             Socket s = ss.accept();
41             boolean gotIfModified = false;
42 
43             BufferedReader in = new BufferedReader(
44                 new InputStreamReader(s.getInputStream()) );
45 
46             String str = null;
47             do {
48                 str = in.readLine();
49                 if (str.startsWith("If-Modified-Since")) {
50                     gotIfModified = true;
51                 }
52                 if (str.equals("")) {
53                     break;
54                 }
55             } while (str != null);
56 
57             PrintStream out = new PrintStream(
58                                  new BufferedOutputStream(
59                                     s.getOutputStream() ));
60 
61             if (gotIfModified) {
62                 out.print("HTTP/1.1 304 Not Modified\r\n");
63             } else {
64                 out.print("HTTP/1.1 200 OK\r\n");
65             }
66 
67             out.print("Content-Type: text/html\r\n");
68             out.print("Connection: close\r\n");
69             out.print("\r\n");
70             out.flush();
71 
72             s.close();
73 
74         } catch (Exception e) {
75             e.printStackTrace();
76         }
77     }
78 
Modified()79     Modified() throws Exception {
80 
81         ss = new ServerSocket(0);
82         Thread thr = new Thread(this);
83         thr.start();
84 
85         URL testURL = new URL("http://localhost:" + ss.getLocalPort() +
86                               "/index.html");
87         URLConnection URLConn = testURL.openConnection();
88         HttpURLConnection httpConn;
89 
90         if (URLConn instanceof HttpURLConnection) {
91             httpConn = (HttpURLConnection)URLConn;
92             httpConn.setAllowUserInteraction(false);
93             httpConn.setIfModifiedSince(9990000000000L);
94             int response = httpConn.getResponseCode();
95             if (response != 304)
96                 throw new RuntimeException("setModifiedSince failure.");
97         }
98     }
99 
main(String args[])100     public static void main(String args[]) throws Exception {
101         new Modified();
102     }
103 }
104