1 /* 2 * Copyright (c) 1997, 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 @summary Stochastic test of LineNumberReader 26 */ 27 28 import java.io.*; 29 30 31 public class LineNumbers { 32 33 static String enc = "UTF8"; 34 static String inEnc; 35 static String outEnc; 36 static int limit = 500; 37 main(String[] args)38 public static void main(String[] args) throws Exception { 39 PrintWriter log 40 = new PrintWriter(new OutputStreamWriter(System.err), true); 41 42 if (inEnc == null) 43 inEnc = enc; 44 if (outEnc == null) 45 outEnc = enc; 46 47 PipedOutputStream co = new PipedOutputStream(); 48 PipedInputStream ci = new PipedInputStream(co); 49 50 BufferedWriter w = new BufferedWriter(new OutputStreamWriter(co, outEnc)); 51 LineNumberReader r = new LineNumberReader(new InputStreamReader(ci, inEnc)); 52 53 Thread t1 = new Thread(new RandomLineSource(w, limit)); 54 Thread t2 = new Thread(new LineNumberSink(r, limit, log)); 55 t1.start(); 56 t2.start(); 57 t1.join(); 58 t2.join(); 59 } 60 61 } 62 63 64 class LineNumberSink implements Runnable { 65 66 LineNumberReader r; 67 int limit; 68 PrintWriter log; 69 LineNumberSink(LineNumberReader r, int limit, PrintWriter log)70 LineNumberSink(LineNumberReader r, int limit, PrintWriter log) { 71 this.r = r; 72 this.limit = limit; 73 this.log = log; 74 } 75 run()76 public void run() { 77 String s; 78 int n = 0; 79 80 try { 81 while ((s = r.readLine()) != null) { 82 n++; 83 int ln = r.getLineNumber(); 84 log.println("[" + ln + "] " + s.length()); 85 log.println(s); 86 if (log.checkError()) 87 log.println("Conversion errors"); /* #### */ 88 if (n != ln) 89 throw new RuntimeException("Line number mismatch: Expected " + n + ", got " + ln); 90 } 91 if (n != limit) 92 throw new RuntimeException("Incorrect line count"); 93 } 94 catch (IOException x) { 95 throw new RuntimeException(x.toString()); 96 } 97 log.println(n + " lines read"); 98 } 99 100 } 101