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; within 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 Emil Ong
27: */
28:
29: package com.caucho.jms.util;
30:
31: import javax.jms.BytesMessage;
32: import javax.jms.JMSException;
33: import java.io.IOException;
34: import java.io.InputStream;
35: import java.util.logging.Logger;
36:
37: /**
38: * An input stream that reads from a BytesMessage.
39: */
40: public class BytesMessageInputStream extends InputStream {
41: protected static Logger log = Logger
42: .getLogger(BytesMessageInputStream.class.getName());
43:
44: private BytesMessage _message;
45:
46: public BytesMessageInputStream(BytesMessage message) {
47: _message = message;
48: }
49:
50: public int read() throws IOException {
51: try {
52: return _message.readByte();
53: } catch (JMSException e) {
54: throw new IOException(e.toString());
55: }
56: }
57:
58: public int read(byte[] buffer, int offset, int length)
59: throws IOException {
60: try {
61: if (offset == 0)
62: return _message.readBytes(buffer, length);
63: else
64: return super .read(buffer, offset, length);
65: } catch (JMSException e) {
66: throw new IOException(e.toString());
67: }
68: }
69:
70: public int read(byte[] buffer) throws IOException {
71: try {
72: return _message.readBytes(buffer);
73: } catch (JMSException e) {
74: throw new IOException(e.toString());
75: }
76: }
77: }
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