/*
 * Copyright (c) 1997, 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

/*
 * @(#)BEncoderStream.java    1.3 02/03/27
 */



package com.sun.xml.internal.messaging.saaj.packaging.mime.util;

import java.io.OutputStream;

/**
 * This class implements a 'B' Encoder as defined by RFC2047 for
 * encoding MIME headers. It subclasses the BASE64EncoderStream
 * class.
 *
 * @author John Mani
 */

public class BEncoderStream extends BASE64EncoderStream {

    /**
     * Create a 'B' encoder that encodes the specified input stream.
     * @param out        the output stream
     */
    public BEncoderStream(OutputStream out) {
        super(out, Integer.MAX_VALUE); // MAX_VALUE is 2^31, should
                                       // suffice (!) to indicate that
                                       // CRLFs should not be inserted
    }

    /**
     * Returns the length of the encoded version of this byte array.
     *
     * @param b byte array.
     *
     * @return length of the byte array.
     */
    public static int encodedLength(byte[] b) {
        return ((b.length + 2)/3) * 4;
    }
}