1 /* 2 * Copyright (c) 1997, 2017, 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 * @(#)BEncoderStream.java 1.3 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 36 /** 37 * This class implements a 'B' Encoder as defined by RFC2047 for 38 * encoding MIME headers. It subclasses the BASE64EncoderStream 39 * class. 40 * 41 * @author John Mani 42 */ 43 44 public class BEncoderStream extends BASE64EncoderStream { 45 46 /** 47 * Create a 'B' encoder that encodes the specified input stream. 48 * @param out the output stream 49 */ 50 public BEncoderStream(OutputStream out) { 51 super(out, Integer.MAX_VALUE); // MAX_VALUE is 2^31, should 52 // suffice (!) to indicate that 53 // CRLFs should not be inserted 54 } 55 56 /** 57 * Returns the length of the encoded version of this byte array. 58 * 59 * @param b byte array. 60 * 61 * @return length of the byte array. 62 */ 63 public static int encodedLength(byte[] b) { 64 return ((b.length + 2)/3) * 4; 65 } 66 }