1 /*
   2  * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 /*
  27  * @(#)OutputUtil.java  1.6 02/03/27
  28  */
  29 
  30 
  31 
  32 package com.sun.xml.internal.messaging.saaj.packaging.mime.util;
  33 
  34 import java.io.OutputStream;
  35 import java.io.IOException;
  36 
  37 /**
  38  * This class is to support writing out Strings as a sequence of bytes
  39  * terminated by a CRLF sequence. The String must contain only US-ASCII
  40  * characters.<p>
  41  *
  42  * The expected use is to write out RFC822 style headers to an output
  43  * stream. <p>
  44  *
  45  * @author Kohsuke Kawaguchi
  46  */
  47 public abstract class OutputUtil {
  48     private static byte[] newline = {'\r','\n'};
  49 
  50     public static void writeln(String s,OutputStream out) throws IOException {
  51         writeAsAscii(s,out);
  52         writeln(out);
  53     }
  54 
  55     /**
  56      * Writes a string as ASCII string.
  57      */
  58     public static void writeAsAscii(String s,OutputStream out) throws IOException {
  59         int len = s.length();
  60         for( int i=0; i<len; i++ )
  61             out.write((byte)s.charAt(i));
  62     }
  63 
  64     public static void writeln(OutputStream out) throws IOException {
  65         out.write(newline);
  66     }
  67 }