Java Utililty Methods Date ISO Parse

List of utility methods to do Date ISO Parse

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Description

The list of methods to do Date ISO Parse are organized into topic(s).

Method

DateparseDateISO(String value)
parse Date ISO 
if (value == null) {
    return null;
synchronized (sdf) {
    sdf.applyPattern(ISO_FORMAT_SECONDS);
    sdf.setTimeZone(GMT);
    sdf.setLenient(true);
    try {
...
DateTimeparseDateTime(String iso8061StrDateTime)
parse Date Time 
if (iso8061StrDateTime == null) {
    return null;
try {
    return ATHENA_DATE_TIME_FORMAT.parseDateTime(iso8061StrDateTime);
} catch (IllegalArgumentException iae) {
    return ATHENA_DATE_FORMAT.parseDateTime(iso8061StrDateTime);
DateparseFromIso8601(String s)
Parses a string in ISO8601 format to a Date object 
synchronized (MONITOR) {
    try {
        return ISO8601.parse(s);
    } catch (ParseException e) {
        throw new IllegalArgumentException("Unable to parse date", e);
DateparseISO(String aIsoString)
Aggiunge 12:00 per evitare problemi con CET CEST. 
return new SimpleDateFormat(FORMAT_ISO_HHmm).parse(aIsoString + " 12:00");
DateparseISO(String input)
parse ISO 
SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ssz");
if (input.endsWith("Z")) {
    input = input.substring(0, input.length() - 1) + "GMT-00:00";
} else {
    int inset = 6;
    String s0 = input.substring(0, input.length() - inset);
    String s1 = input.substring(input.length() - inset, input.length());
    input = s0 + "GMT" + s1;
...
DoubleparseISO(String strValue)
Formats a double value according to the ISO format for double 
if (strValue != null) {
    try {
        Number number = isoDoubleFormat.parse(strValue);
        if (number != null) {
            return new Double(number.doubleValue());
    } catch (ParseException e) {
return null;
longparseIso8601(String iso8601String)
parse Iso 
if (iso8601String == null)
    return 0;
String formatString;
if (isoStringHasTime(iso8601String)) { 
    iso8601String = iso8601String.replace("Z", "+00:00"); 
    try {
        iso8601String = iso8601String.substring(0, 22) + iso8601String.substring(23);
    } catch (IndexOutOfBoundsException e) {
...
DateparseIso8601(String rawstr)
parse Iso 
return createIso8601Format().parse(rawstr);
DateparseIso8601(String time)
Not working yet but this is supposed to parse an iso8601 date format 
String tmp = "((\\d\\d\\d\\d)-(\\d\\d)-(\\d\\d))?(T(\\d\\d):(\\d\\d)(:(\\d\\d)?)?(.*)?)?";
Pattern pattern = Pattern.compile(tmp);
Matcher matcher = pattern.matcher(time);
boolean ok = matcher.find();
if (!ok) {
    System.err.println("No match:" + time);
    return null;
System.err.println("Time:" + time);
for (int i = 1; i <= matcher.groupCount(); i++) {
int gidx = 1;
gidx++;
String year = str(matcher.group(gidx++), "0000");
String month = str(matcher.group(gidx++), "01");
String day = str(matcher.group(gidx++), "01");
gidx++;
String hh = str(matcher.group(gidx++), "00");
String mm = str(matcher.group(gidx++), "00");
gidx++;
String ss = str(matcher.group(gidx++), "00");
String tzd = str(matcher.group(gidx++), "GMT");
if (tzd.equals("Z") || (tzd.length() == 0)) {
    tzd = "GMT";
String format = "yyyy-MM-dd-HH-mm-ss-Z";
SimpleDateFormat sdf = new SimpleDateFormat();
sdf.applyPattern(format);
String dateString = year + "-" + month + "-" + day + "-" + hh + "-" + mm + "-" + ss + "-" + tzd;
try {
    Date dttm = sdf.parse(dateString);
    return dttm;
} catch (Exception exc) {
    System.err.println("exc:" + exc);
    return null;
CalendarparseISO8601Date(final String dateString)
Parse the date contained in the supplied string and return a UTC Calendar object. 
final String regex = "^(\\d{4})-?(([wW]([012345]\\d)-?([1234567])?)|(([01]\\d)(-([0123]\\d))?)|([01]\\d)([0123]\\d)|([0123]\\d\\d))?(T([012]\\d):?([012345]\\d)?(:?([012345]\\d)(.(\\d{1,3}))?)?)?((Z)|(([+-])(\\d{2})):?(\\d{2})?)?$";
final Pattern pattern = Pattern.compile(regex);
final Matcher matcher = pattern.matcher(dateString);
if (!matcher.matches()) {
    throw new ParseException("error while parsing iso8601 date: " + dateString, 0);
String year = matcher.group(1);
String week = matcher.group(4);
...