blob: 66bfb2920d40ee5243d3d5e17c9a5f04848332d5 [file] [log] [blame]
J. Duke319a3b92007-12-01 00:00:00 +00001/*
2 * Copyright 1997-2000 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/**/
25
26import java.io.*;
27
28
29public class ABCOutputStream extends OutputStream {
30
31 int len;
32 int count = 0;
33 char next = ABCInputStream.firstChar();
34
35 ABCOutputStream(int len) {
36 this.len = len;
37 }
38
39 public void write(int c) throws IOException {
40 if (count >= len)
41 throw new IOException("Wrote too many characters");
42 if (c != next)
43 throw new IOException("Wrong character written: "
44 + "Expected '" + next + "', "
45 + "got '" + (char)c + "'");
46 next = ABCInputStream.nextChar(next);
47 count++;
48 }
49
50 public void write(byte buf[], int off, int len) throws IOException {
51 for (int i = off; i < off + len; i++)
52 write(buf[i]);
53 }
54
55 public void close() throws IOException {
56 if (len == 0)
57 throw new IOException("Already closed");
58 else if (count < len)
59 throw new IOException("Wrote too few characters");
60 len = 0;
61 }
62
63}