| J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1997 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* @test |
| 25 | @summary Check that BufferedReader/Writer correctly handle small reads |
| 26 | */ |
| 27 | |
| 28 | import java.io.*; |
| 29 | |
| 30 | |
| 31 | public class SmallReads { |
| 32 | |
| 33 | static class OneByteInputStream extends FilterInputStream { |
| 34 | |
| 35 | OneByteInputStream(InputStream in) { |
| 36 | super(in); |
| 37 | } |
| 38 | |
| 39 | public int read(byte[] b, int off, int len) throws IOException { |
| 40 | return in.read(b, off, 1); |
| 41 | } |
| 42 | |
| 43 | } |
| 44 | |
| 45 | static String enc = "UTF8"; |
| 46 | static String inEnc; |
| 47 | static String outEnc; |
| 48 | static int count = 100; |
| 49 | |
| 50 | public static void main(String[] args) throws Exception { |
| 51 | PrintWriter log |
| 52 | = new PrintWriter(new OutputStreamWriter(System.err), true); |
| 53 | |
| 54 | if (inEnc == null) |
| 55 | inEnc = enc; |
| 56 | if (outEnc == null) |
| 57 | outEnc = enc; |
| 58 | |
| 59 | PipedOutputStream uo = new PipedOutputStream(); |
| 60 | PipedInputStream ui = new PipedInputStream(uo); |
| 61 | PipedOutputStream co = new PipedOutputStream(); |
| 62 | PipedInputStream ci = new PipedInputStream(co); |
| 63 | InputStream ci2 = new OneByteInputStream(ci); |
| 64 | |
| 65 | BufferedWriter w = new BufferedWriter(new OutputStreamWriter(co, outEnc)); |
| 66 | BufferedReader r = new BufferedReader(new InputStreamReader(ci2, inEnc)); |
| 67 | |
| 68 | Thread t1 = new Thread(new RandomLineSource(uo, w, count, log)); |
| 69 | Thread t2 = new Thread(new LineSink(ui, r, count, log)); |
| 70 | t1.start(); |
| 71 | t2.start(); |
| 72 | t1.join(); |
| 73 | t2.join(); |
| 74 | } |
| 75 | |
| 76 | } |