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: * Free SoftwareFoundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package com.caucho.vfs;
30:
31: import java.io.IOException;
32:
33: /**
34: * Stream encapsulating System.out.
35: */
36: public class StdoutStream extends StreamImpl {
37: private static StdoutStream _stdout;
38:
39: /**
40: * Private, since StdoutStream should always use the create() interface.
41: */
42: private StdoutStream() {
43: }
44:
45: /**
46: * Returns the StdoutStream singleton
47: */
48: public static StdoutStream create() {
49: if (_stdout == null) {
50: _stdout = new StdoutStream();
51: ConstPath path = new ConstPath(null, _stdout);
52: path.setScheme("stdout");
53: _stdout.setPath(path);
54: }
55:
56: return _stdout;
57: }
58:
59: /**
60: * The standard-output stream returns true since it's writable.
61: */
62: public boolean canWrite() {
63: return true;
64: }
65:
66: /**
67: * Writes the data to the System.out.
68: *
69: * @param buf the buffer to write.
70: * @param offset starting offset in the buffer.
71: * @param length number of bytes to write.
72: * @param isEnd true when the stream is closing.
73: */
74: public void write(byte[] buf, int offset, int length, boolean isEnd)
75: throws IOException {
76: System.out.write(buf, offset, length);
77: System.out.flush();
78: }
79: }
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