org.apache.ws.security.util.XmlSchemaDateFormat Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of wss4j Show documentation
Show all versions of wss4j Show documentation
The Apache WSS4J project provides a Java implementation of the primary security standards
for Web Services, namely the OASIS Web Services Security (WS-Security) specifications
from the OASIS Web Services Security TC.
/*
* Copyright 2003-2005 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package org.apache.ws.security.util;
import java.text.DateFormat;
import java.text.FieldPosition;
import java.text.ParsePosition;
import java.text.SimpleDateFormat;
import java.text.ParseException;
import java.util.Date;
import java.util.TimeZone;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* A {@link DateFormat} for the format of the dateTime simpleType as specified in the
* XML Schema specification. See
* XML Schema Part 2: Datatypes, W3C Recommendation 02 May 2001, Section 3.2.7.1.
*
* @author Ian P. Springer
* @author Werner Dittmann
*/
public class XmlSchemaDateFormat extends DateFormat {
/**
* Logger.
*/
private static Log log = LogFactory.getLog(XmlSchemaDateFormat.class);
private static boolean doDebug = false;
static {
doDebug = log.isDebugEnabled();
}
/**
* Message retriever.
*/
// private static final MessageRetriever MSG = ResourceKeys.MSG;
/**
* DateFormat for Zulu (UTC) form of an XML Schema dateTime string.
*/
private static final DateFormat DATEFORMAT_XSD_ZULU = new SimpleDateFormat(
"yyyy-MM-dd'T'HH:mm:ss.SSS'Z'");
static {
DATEFORMAT_XSD_ZULU.setTimeZone(TimeZone.getTimeZone("UTC"));
}
/**
* This method was snarfed from org.apache.axis.encoding.ser.CalendarDeserializer,
* which was written by Sam Ruby ([email protected]) and Rich Scheuerle ([email protected]).
* Better error reporting was added.
*
* @see DateFormat#parse(java.lang.String)
*/
public Date parse(String src, ParsePosition parse_pos) {
Date date;
// validate fixed portion of format
int index = 0;
try {
if (src != null) {
if ((src.charAt(0) == '+') || (src.charAt(0) == '-')) {
src = src.substring(1);
}
if (src.length() < 19) {
parse_pos.setIndex(src.length() - 1);
handleParseError(parse_pos, "TOO_FEW_CHARS");
}
validateChar(src, parse_pos, index = 4, '-', "EXPECTED_DASH");
validateChar(src, parse_pos, index = 7, '-', "EXPECTED_DASH");
validateChar(src, parse_pos, index = 10, 'T', "EXPECTED_CAPITAL_T");
validateChar(src, parse_pos, index = 13, ':', "EXPECTED_COLON_IN_TIME");
validateChar(src, parse_pos, index = 16, ':', "EXPECTED_COLON_IN_TIME");
}
// convert what we have validated so far
try {
synchronized (DATEFORMAT_XSD_ZULU) {
date = DATEFORMAT_XSD_ZULU.parse((src == null) ? null
: (src.substring(0, 19) + ".000Z"));
}
} catch (Exception e) {
throw new NumberFormatException(e.toString());
}
index = 19;
// parse optional milliseconds
if (src != null) {
if ((index < src.length()) && (src.charAt(index) == '.')) {
int milliseconds = 0;
int start = ++index;
while ((index < src.length())
&& Character.isDigit(src.charAt(index))) {
index++;
}
String decimal = src.substring(start, index);
if (decimal.length() == 3) {
milliseconds = Integer.parseInt(decimal);
} else if (decimal.length() < 3) {
milliseconds = Integer.parseInt((decimal + "000")
.substring(0, 3));
} else {
milliseconds = Integer
.parseInt(decimal.substring(0, 3));
if (decimal.charAt(3) >= '5') {
++milliseconds;
}
}
// add milliseconds to the current date
date.setTime(date.getTime() + milliseconds);
}
// parse optional timezone
if (((index + 5) < src.length())
&& ((src.charAt(index) == '+') || (src.charAt(index) == '-'))) {
validateCharIsDigit(src, parse_pos, index + 1, "EXPECTED_NUMERAL");
validateCharIsDigit(src, parse_pos, index + 2, "EXPECTED_NUMERAL");
validateChar(src, parse_pos, index + 3, ':', "EXPECTED_COLON_IN_TIMEZONE");
validateCharIsDigit(src, parse_pos, index + 4, "EXPECTED_NUMERAL");
validateCharIsDigit(src, parse_pos, index + 5, "EXPECTED_NUMERAL");
final int hours = (((src.charAt(index + 1) - '0') * 10) + src
.charAt(index + 2)) - '0';
final int mins = (((src.charAt(index + 4) - '0') * 10) + src
.charAt(index + 5)) - '0';
int millisecs = ((hours * 60) + mins) * 60 * 1000;
// subtract millisecs from current date to obtain GMT
if (src.charAt(index) == '+') {
millisecs = -millisecs;
}
date.setTime(date.getTime() + millisecs);
index += 6;
}
if ((index < src.length()) && (src.charAt(index) == 'Z')) {
index++;
}
if (index < src.length()) {
handleParseError(parse_pos, "TOO_MANY_CHARS");
}
}
} catch (ParseException pe) {
log.error(pe.toString());
index = 0; // IMPORTANT: this tells DateFormat.parse() to throw a ParseException
parse_pos.setErrorIndex(index);
date = null;
}
parse_pos.setIndex(index);
return (date);
}
/**
* @see DateFormat#format(java.util.Date)
*/
public StringBuffer format(Date date, StringBuffer append_buf,
FieldPosition field_pos) {
String str;
synchronized (DATEFORMAT_XSD_ZULU) {
str = DATEFORMAT_XSD_ZULU.format(date);
}
if (append_buf == null) {
append_buf = new StringBuffer();
}
append_buf.append(str);
return (append_buf);
}
private void validateChar(String str, ParsePosition parse_pos, int index,
char expected, String error_reason) throws ParseException {
if (str.charAt(index) != expected) {
handleParseError(parse_pos, error_reason);
}
}
private void validateCharIsDigit(String str, ParsePosition parse_pos,
int index, String error_reason) throws ParseException {
if (!Character.isDigit(str.charAt(index))) {
handleParseError(parse_pos, error_reason);
}
}
private void handleParseError(ParsePosition parse_pos, String error_reason)
throws ParseException {
throw new ParseException("INVALID_XSD_DATETIME", parse_pos.getErrorIndex());
}
}