com.sun.mail.util.BEncoderStream Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package com.sun.mail.util;
import java.io.*;
/**
* 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 the byte array
* @return the length
*/
public static int encodedLength(byte[] b) {
return ((b.length + 2)/3) * 4;
}
}