1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5  * This code is free software; you can redistribute it and/or modify it
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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
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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23 
24 /**
25  * @test
26  * @bug 4028462
27  * @summary Test for new constructors that set the pipe size
28  */
29 
30 import java.io.*;
31 public class Constructors extends Thread {
32 
33     static PipedWriter out;
34     static PipedReader  in;
35     static int totalToWrite = (8 * 1024);
36     static int pipeSize = totalToWrite;
37 
run()38     public void run() {
39         try {
40             for (int times = (totalToWrite / pipeSize); times > 0; times--) {
41                 System.out.println("Reader reading...");
42                 int read = in.read(new char[pipeSize]);
43                 System.out.println("read: " + read);
44                 if (read < pipeSize) {
45                     throw new Exception("Pipe Size is not set to:" + pipeSize);
46                 }
47             }
48         } catch (Throwable e) {
49             System.out.println("Reader exception:");
50             e.printStackTrace();
51         } finally {
52             System.out.println("Reader done.");
53         }
54     }
55 
main(String args[])56     public static void main(String args[]) throws Exception {
57 
58         in = new PipedReader(pipeSize);
59         out = new PipedWriter(in);
60         testPipe();
61 
62         out = new PipedWriter();
63         in = new PipedReader(out, pipeSize);
64         testPipe();
65    }
66 
67 
testPipe()68    private static void testPipe() throws Exception {
69         Constructors reader = new Constructors();
70         reader.start();
71 
72         try {
73             System.out.println("Writer started.");
74             out.write(new char[totalToWrite]);
75         } catch (Throwable e) {
76             System.out.println("Writer exception:");
77             e.printStackTrace();
78         } finally {
79             out.close();
80             System.out.println("Waiting for reader...");
81             reader.join();
82             in.close();
83             System.out.println("Done.");
84         }
85     }
86 }
87