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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
package org.ietf.ldap.ber.stream;
import java.util.*;
import java.io.*;
/**
* This class is for the Boolean object.
* <P>See CCITT X.209.
*
* <pre>
* ENCODING RULE:
* tag = 0x01
* length = 0x01
* one contents octet (non-zero indicates TRUE).
*
* Example 1: (false)
* 01 01 00
* Example 2: (true)
* 01 01 FF
* </pre>
*
* @version 1.0
*/
public class BERBoolean extends BERElement {
/**
* Internal variables
*/
private boolean m_value = true;
/**
* Constructs a boolean element.
* @param value boolean value
*/
public BERBoolean(boolean value) {
m_value = value;
}
/**
* Constructs a boolean element from an input stream.
* @param stream source
* @param bytes_read array of 1 int; value incremented by
* number of bytes read from stream
* @exception IOException failed to construct
*/
public BERBoolean(InputStream stream, int[] bytes_read) throws IOException {
int octet = stream.read(); /* skip length */
bytes_read[0]++;
octet = stream.read(); /* content octet */
bytes_read[0]++;
if (octet > 0)
m_value = true;
else
m_value = false;
}
/**
* Sends the BER encoding directly to a stream.
* @param stream output stream
*/
public void write(OutputStream stream) throws IOException {
stream.write(BERElement.BOOLEAN);
stream.write(0x01);
if (m_value)
stream.write(0xFF); /* non-zero means true. */
else
stream.write(0x00); /* zero means false. */
}
/**
* Gets the boolean value.
* @param element type
*/
public boolean getValue() {
return m_value;
}
/**
* Gets the element type.
* @param element type
*/
public int getType() {
return BERElement.BOOLEAN;
}
/**
* Gets the string representation.
* @return string representation of tag.
*/
public String toString() {
return "Boolean {" + m_value + "}";
}
}
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