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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 UTCTime object.
* <P>See CCITT X.209.
*
* <pre>
* ENCODING RULE:
* Primitive Definite length.
* tag = 0x17
* length = (short or long form)
* one or more contents octets
* </pre>
*
* @version 1.0
*/
public class BERUTCTime extends BERElement {
/**
* Internal variables
*/
private String m_value = null;
/**
* Constructs a UTC time element containing the specified string.
* @param utc_string string in UTC time format
*/
public BERUTCTime(String utc_string) {
m_value = utc_string;
}
/**
* Constructs a UTCTime element from an input stream
* (for constructed encoding)
* @param stream source
* @param bytes_read array of 1 int, incremented by number of bytes read
* @exception IOException failed to construct
*/
public BERUTCTime(BERTagDecoder decoder, InputStream stream,
int[] bytes_read) throws IOException {
int octet;
int contents_length = super.readLengthOctets(stream, bytes_read);
int[] component_length = new int[1];
BERElement element = null;
m_value = "";
if (contents_length == -1) {
/* Constructed - indefinite length content octets. */
{
component_length[0] = 0;
element = getElement(decoder,stream,component_length);
if (element != null) {
/* element is an octetstring - add it to the existing buffer */
BERUTCTime utc_element = (BERUTCTime)element;
m_value += utc_element.getValue();
}
} while (element != null);
} else {
/* Definite length content octets string. */
bytes_read[0] += contents_length;
while (contents_length > 0) {
component_length[0] = 0;
element = getElement(decoder,stream,component_length);
if (element != null) {
/* element is an octetstring - add it to the existing buffer */
BERUTCTime utc_element = (BERUTCTime)element;
m_value += utc_element.getValue();
}
contents_length -= component_length[0];
}
}
}
/**
* Constructs a UTC time element from an input stream
* (for primitive encoding)
* @param stream source
* @param bytes_read array of 1 int, incremented by number of bytes read
* @exception IOException failed to construct
*/
public BERUTCTime(InputStream stream, int[] bytes_read) throws IOException {
int contents_length = super.readLengthOctets(stream, bytes_read);
/* Definite length content octets string. */
if (contents_length > 0) {
byte[] byte_buf = new byte[contents_length];
for (int i = 0; i < contents_length; i++) {
byte_buf[i] = (byte) stream.read();
}
bytes_read[0] += contents_length;
try{
m_value = new String(byte_buf, "UTF8");
} catch(Throwable x)
{}
}
}
/**
* Writes BER to a stream.
* @return number of bytes written to stream.
* @exception IOException failed to write
*/
private byte[] byte_buf;
public void write(OutputStream stream) throws IOException {
stream.write((byte)getType());
if (m_value == null) {
sendDefiniteLength(stream, 0);
} else {
try{
byte_buf = m_value.getBytes("UTF8");
sendDefiniteLength(stream, byte_buf.length); /* length */
} catch(Throwable x)
{}
stream.write(byte_buf,0,byte_buf.length); /* contents */
}
}
/**
* Gets the element value.
* @param element value
*/
public String getValue() {
return m_value;
}
/**
* Gets the element type.
* @param element type
*/
public int getType() {
return BERElement.UTCTIME;
}
/**
* Gets the string representation.
* NOTE: currently prints out values in decimal form.
* @return string representation of tag.
*/
public String toString() {
if (m_value == null)
return "UTCTime (null)";
else
return "UTCTime {" + m_value + "}";
}
}
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