01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 2 of the License, or
12: * (at your option) any later version.
13: *
14: * Resin Open Source is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17: * of NON-INFRINGEMENT. See the GNU General Public License for more
18: * details.
19: *
20: * You should have received a copy of the GNU General Public License
21: * along with Resin Open Source; if not, write to the
22: *
23: * Free Software Foundation, Inc.
24: * 59 Temple Place, Suite 330
25: * Boston, MA 02111-1307 USA
26: *
27: * @author Scott Ferguson
28: */
29:
30: package com.caucho.vfs;
31:
32: import java.io.IOException;
33:
34: /**
35: * Stream encapsulating System.err.
36: */
37: public class StderrStream extends StreamImpl {
38: private static StderrStream _stderr;
39:
40: private StderrStream() {
41: }
42:
43: /**
44: * Returns the StderrStream singleton
45: */
46: public static StderrStream create() {
47: if (_stderr == null) {
48: _stderr = new StderrStream();
49: ConstPath path = new ConstPath(null, _stderr);
50: path.setScheme("stderr");
51: _stderr.setPath(path);
52: }
53:
54: return _stderr;
55: }
56:
57: /**
58: * The standard error stream returns true since it's writable.
59: */
60: public boolean canWrite() {
61: return true;
62: }
63:
64: /**
65: * Writes the data to the System.out.
66: *
67: * @param buf the buffer to write.
68: * @param offset starting offset in the buffer.
69: * @param length number of bytes to write.
70: * @param isEnd true when the stream is closing.
71: */
72: public void write(byte[] buf, int offset, int length, boolean isEnd)
73: throws IOException {
74: System.err.write(buf, offset, length);
75: System.err.flush();
76: }
77: }
|