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.BufferedReader;
32: import java.io.IOException;
33:
34: /**
35: * Trivial adapter so readers and input streams can be used in the
36: * same servlet. This adapter also saves GC because it only needs
37: * allocation once.
38: */
39: public class BufferedReaderAdapter extends BufferedReader {
40: private ReadStream rs;
41:
42: public BufferedReaderAdapter(ReadStream rs) {
43: // this is only a dummy because the rs.getReader is never actually called
44: super (rs.getReader(), 1);
45: }
46:
47: public void init(ReadStream rs) {
48: this .rs = rs;
49: }
50:
51: public int read() throws IOException {
52: return rs.readChar();
53: }
54:
55: public int read(char[] cbuf, int offset, int length)
56: throws IOException {
57: return rs.read(cbuf, offset, length);
58: }
59:
60: public String readLine() throws IOException {
61: return rs.readln();
62: }
63:
64: public long skip(long n) throws IOException {
65: long count = 0;
66:
67: for (; count < n && rs.readChar() >= 0; count++) {
68: }
69:
70: return count;
71: }
72:
73: public boolean ready() throws IOException {
74: return rs.available() > 0;
75: }
76:
77: public void close() throws IOException {
78: }
79: }
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