01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * The contents of this file are subject to the terms of either the GNU
07: * General Public License Version 2 only ("GPL") or the Common Development
08: * and Distribution License("CDDL") (collectively, the "License"). You
09: * may not use this file except in compliance with the License. You can obtain
10: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
11: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
12: * language governing permissions and limitations under the License.
13: *
14: * When distributing the software, include this License Header Notice in each
15: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
16: * Sun designates this particular file as subject to the "Classpath" exception
17: * as provided by Sun in the GPL Version 2 section of the License file that
18: * accompanied this code. If applicable, add the following below the License
19: * Header, with the fields enclosed by brackets [] replaced by your own
20: * identifying information: "Portions Copyrighted [year]
21: * [name of copyright owner]"
22: *
23: * Contributor(s):
24: *
25: * If you wish your version of this file to be governed by only the CDDL or
26: * only the GPL Version 2, indicate your decision by adding "[Contributor]
27: * elects to include this software in this distribution under the [CDDL or GPL
28: * Version 2] license." If you don't indicate a single choice of license, a
29: * recipient has the option to distribute your version of this file under
30: * either the CDDL, the GPL Version 2 or to extend the choice of license to
31: * its licensees as provided above. However, if you add GPL Version 2 code
32: * and therefore, elected the GPL Version 2 license, then the option applies
33: * only if the new code is made subject to such option by the copyright
34: * holder.
35: */
36:
37: /*
38: * @(#)LineOutputStream.java 1.8 07/05/04
39: */
40:
41: package com.sun.mail.util;
42:
43: import java.io.*;
44: import javax.mail.MessagingException;
45:
46: /**
47: * This class is to support writing out Strings as a sequence of bytes
48: * terminated by a CRLF sequence. The String must contain only US-ASCII
49: * characters.<p>
50: *
51: * The expected use is to write out RFC822 style headers to an output
52: * stream. <p>
53: *
54: * @author John Mani
55: */
56:
57: public class LineOutputStream extends FilterOutputStream {
58: private static byte[] newline;
59:
60: static {
61: newline = new byte[2];
62: newline[0] = (byte) '\r';
63: newline[1] = (byte) '\n';
64: }
65:
66: public LineOutputStream(OutputStream out) {
67: super (out);
68: }
69:
70: public void writeln(String s) throws MessagingException {
71: try {
72: byte[] bytes = ASCIIUtility.getBytes(s);
73: out.write(bytes);
74: out.write(newline);
75: } catch (Exception ex) {
76: throw new MessagingException("IOException", ex);
77: }
78: }
79:
80: public void writeln() throws MessagingException {
81: try {
82: out.write(newline);
83: } catch (Exception ex) {
84: throw new MessagingException("IOException", ex);
85: }
86: }
87: }
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