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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.sqlite.date;

import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.Serializable;
import java.text.DateFormatSymbols;
import java.text.ParseException;
import java.text.ParsePosition;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;
import java.util.SortedMap;
import java.util.TimeZone;
import java.util.TreeMap;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * 

FastDateParser is a fast and thread-safe version of * {@link java.text.SimpleDateFormat}.

* *

To obtain a proxy to a FastDateParser, use {@link FastDateFormat#getInstance(String, TimeZone, Locale)} * or another variation of the factory methods of {@link FastDateFormat}.

* *

Since FastDateParser is thread safe, you can use a static member instance:

* * private static final DateParser DATE_PARSER = FastDateFormat.getInstance("yyyy-MM-dd"); * * *

This class can be used as a direct replacement for * SimpleDateFormat in most parsing situations. * This class is especially useful in multi-threaded server environments. * SimpleDateFormat is not thread-safe in any JDK version, * nor will it be as Sun has closed the * bug/RFE. *

* *

Only parsing is supported by this class, but all patterns are compatible with * SimpleDateFormat.

* *

The class operates in lenient mode, so for example a time of 90 minutes is treated as 1 hour 30 minutes.

* *

Timing tests indicate this class is as about as fast as SimpleDateFormat * in single thread applications and about 25% faster in multi-thread applications.

* * @version $Id$ * @since 3.2 * @see FastDatePrinter */ public class FastDateParser implements DateParser, Serializable { /** * Required for serialization support. * * @see java.io.Serializable */ private static final long serialVersionUID = 2L; static final Locale JAPANESE_IMPERIAL = new Locale("ja","JP","JP"); // defining fields private final String pattern; private final TimeZone timeZone; private final Locale locale; private final int century; private final int startYear; // derived fields private transient Pattern parsePattern; private transient Strategy[] strategies; // dynamic fields to communicate with Strategy private transient String currentFormatField; private transient Strategy nextStrategy; /** *

Constructs a new FastDateParser.

* * Use {@link FastDateFormat#getInstance(String, TimeZone, Locale)} or another variation of the * factory methods of {@link FastDateFormat} to get a cached FastDateParser instance. * * @param pattern non-null {@link java.text.SimpleDateFormat} compatible * pattern * @param timeZone non-null time zone to use * @param locale non-null locale */ protected FastDateParser(final String pattern, final TimeZone timeZone, final Locale locale) { this(pattern, timeZone, locale, null); } /** *

Constructs a new FastDateParser.

* * @param pattern non-null {@link java.text.SimpleDateFormat} compatible * pattern * @param timeZone non-null time zone to use * @param locale non-null locale * @param centuryStart The start of the century for 2 digit year parsing * * @since 3.3 */ protected FastDateParser(final String pattern, final TimeZone timeZone, final Locale locale, final Date centuryStart) { this.pattern = pattern; this.timeZone = timeZone; this.locale = locale; final Calendar definingCalendar = Calendar.getInstance(timeZone, locale); int centuryStartYear; if(centuryStart!=null) { definingCalendar.setTime(centuryStart); centuryStartYear= definingCalendar.get(Calendar.YEAR); } else if(locale.equals(JAPANESE_IMPERIAL)) { centuryStartYear= 0; } else { // from 80 years ago to 20 years from now definingCalendar.setTime(new Date()); centuryStartYear= definingCalendar.get(Calendar.YEAR)-80; } century= centuryStartYear / 100 * 100; startYear= centuryStartYear - century; init(definingCalendar); } /** * Initialize derived fields from defining fields. * This is called from constructor and from readObject (de-serialization) * * @param definingCalendar the {@link java.util.Calendar} instance used to initialize this FastDateParser */ private void init(final Calendar definingCalendar) { final StringBuilder regex= new StringBuilder(); final List collector = new ArrayList(); final Matcher patternMatcher= formatPattern.matcher(pattern); if(!patternMatcher.lookingAt()) { throw new IllegalArgumentException( "Illegal pattern character '" + pattern.charAt(patternMatcher.regionStart()) + "'"); } currentFormatField= patternMatcher.group(); Strategy currentStrategy= getStrategy(currentFormatField, definingCalendar); for(;;) { patternMatcher.region(patternMatcher.end(), patternMatcher.regionEnd()); if(!patternMatcher.lookingAt()) { nextStrategy = null; break; } final String nextFormatField= patternMatcher.group(); nextStrategy = getStrategy(nextFormatField, definingCalendar); if(currentStrategy.addRegex(this, regex)) { collector.add(currentStrategy); } currentFormatField= nextFormatField; currentStrategy= nextStrategy; } if (patternMatcher.regionStart() != patternMatcher.regionEnd()) { throw new IllegalArgumentException("Failed to parse \""+pattern+"\" ; gave up at index "+patternMatcher.regionStart()); } if(currentStrategy.addRegex(this, regex)) { collector.add(currentStrategy); } currentFormatField= null; strategies= collector.toArray(new Strategy[collector.size()]); parsePattern= Pattern.compile(regex.toString()); } // Accessors //----------------------------------------------------------------------- /* (non-Javadoc) * @see org.apache.commons.lang3.time.DateParser#getPattern() */ public String getPattern() { return pattern; } /* (non-Javadoc) * @see org.apache.commons.lang3.time.DateParser#getTimeZone() */ public TimeZone getTimeZone() { return timeZone; } /* (non-Javadoc) * @see org.apache.commons.lang3.time.DateParser#getLocale() */ public Locale getLocale() { return locale; } /** * Returns the generated pattern (for testing purposes). * * @return the generated pattern */ Pattern getParsePattern() { return parsePattern; } // Basics //----------------------------------------------------------------------- /** *

Compare another object for equality with this object.

* * @param obj the object to compare to * @return trueif equal to this instance */ @Override public boolean equals(final Object obj) { if (! (obj instanceof FastDateParser) ) { return false; } final FastDateParser other = (FastDateParser) obj; return pattern.equals(other.pattern) && timeZone.equals(other.timeZone) && locale.equals(other.locale); } /** *

Return a hashcode compatible with equals.

* * @return a hashcode compatible with equals */ @Override public int hashCode() { return pattern.hashCode() + 13 * (timeZone.hashCode() + 13 * locale.hashCode()); } /** *

Get a string version of this formatter.

* * @return a debugging string */ @Override public String toString() { return "FastDateParser[" + pattern + "," + locale + "," + timeZone.getID() + "]"; } // Serializing //----------------------------------------------------------------------- /** * Create the object after serialization. This implementation reinitializes the * transient properties. * * @param in ObjectInputStream from which the object is being deserialized. * @throws IOException if there is an IO issue. * @throws ClassNotFoundException if a class cannot be found. */ private void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException { in.defaultReadObject(); final Calendar definingCalendar = Calendar.getInstance(timeZone, locale); init(definingCalendar); } /* (non-Javadoc) * @see org.apache.commons.lang3.time.DateParser#parseObject(java.lang.String) */ public Object parseObject(final String source) throws ParseException { return parse(source); } /* (non-Javadoc) * @see org.apache.commons.lang3.time.DateParser#parse(java.lang.String) */ public Date parse(final String source) throws ParseException { final Date date= parse(source, new ParsePosition(0)); if(date==null) { // Add a note re supported date range if (locale.equals(JAPANESE_IMPERIAL)) { throw new ParseException( "(The " +locale + " locale does not support dates before 1868 AD)\n" + "Unparseable date: \""+source+"\" does not match "+parsePattern.pattern(), 0); } throw new ParseException("Unparseable date: \""+source+"\" does not match "+parsePattern.pattern(), 0); } return date; } /* (non-Javadoc) * @see org.apache.commons.lang3.time.DateParser#parseObject(java.lang.String, java.text.ParsePosition) */ public Object parseObject(final String source, final ParsePosition pos) { return parse(source, pos); } /** * This implementation updates the ParsePosition if the parse succeeeds. * However, unlike the method {@link java.text.SimpleDateFormat#parse(String, ParsePosition)} * it is not able to set the error Index - i.e. {@link ParsePosition#getErrorIndex()} - if the parse fails. *

* To determine if the parse has succeeded, the caller must check if the current parse position * given by {@link ParsePosition#getIndex()} has been updated. If the input buffer has been fully * parsed, then the index will point to just after the end of the input buffer. * * @see org.apache.commons.lang3.time.DateParser#parse(java.lang.String, java.text.ParsePosition) * {@inheritDoc} */ public Date parse(final String source, final ParsePosition pos) { final int offset= pos.getIndex(); final Matcher matcher= parsePattern.matcher(source.substring(offset)); if(!matcher.lookingAt()) { return null; } // timing tests indicate getting new instance is 19% faster than cloning final Calendar cal= Calendar.getInstance(timeZone, locale); cal.clear(); for(int i=0; iStringBuilder */ private static StringBuilder escapeRegex(final StringBuilder regex, final String value, final boolean unquote) { regex.append("\\Q"); for(int i= 0; i getDisplayNames(final int field, final Calendar definingCalendar, final Locale locale) { return definingCalendar.getDisplayNames(field, Calendar.ALL_STYLES, locale); } /** * Adjust dates to be within appropriate century * @param twoDigitYear The year to adjust * @return A value between centuryStart(inclusive) to centuryStart+100(exclusive) */ private int adjustYear(final int twoDigitYear) { final int trial= century + twoDigitYear; return twoDigitYear>=startYear ?trial :trial+100; } /** * Is the next field a number? * @return true, if next field will be a number */ boolean isNextNumber() { return nextStrategy!=null && nextStrategy.isNumber(); } /** * What is the width of the current field? * @return The number of characters in the current format field */ int getFieldWidth() { return currentFormatField.length(); } /** * A strategy to parse a single field from the parsing pattern */ private static abstract class Strategy { /** * Is this field a number? * The default implementation returns false. * * @return true, if field is a number */ boolean isNumber() { return false; } /** * Set the Calendar with the parsed field. * * The default implementation does nothing. * * @param parser The parser calling this strategy * @param cal The Calendar to set * @param value The parsed field to translate and set in cal */ void setCalendar(final FastDateParser parser, final Calendar cal, final String value) { } /** * Generate a Pattern regular expression to the StringBuilder * which will accept this field * @param parser The parser calling this strategy * @param regex The StringBuilder to append to * @return true, if this field will set the calendar; * false, if this field is a constant value */ abstract boolean addRegex(FastDateParser parser, StringBuilder regex); } /** * A Pattern to parse the user supplied SimpleDateFormat pattern */ private static final Pattern formatPattern= Pattern.compile( "D+|E+|F+|G+|H+|K+|M+|S+|W+|X+|Z+|a+|d+|h+|k+|m+|s+|w+|y+|z+|''|'[^']++(''[^']*+)*+'|[^'A-Za-z]++"); /** * Obtain a Strategy given a field from a SimpleDateFormat pattern * @param formatField A sub-sequence of the SimpleDateFormat pattern * @param definingCalendar The calendar to obtain the short and long values * @return The Strategy that will handle parsing for the field */ private Strategy getStrategy(final String formatField, final Calendar definingCalendar) { switch(formatField.charAt(0)) { case '\'': if(formatField.length()>2) { return new CopyQuotedStrategy(formatField.substring(1, formatField.length()-1)); } //$FALL-THROUGH$ default: return new CopyQuotedStrategy(formatField); case 'D': return DAY_OF_YEAR_STRATEGY; case 'E': return getLocaleSpecificStrategy(Calendar.DAY_OF_WEEK, definingCalendar); case 'F': return DAY_OF_WEEK_IN_MONTH_STRATEGY; case 'G': return getLocaleSpecificStrategy(Calendar.ERA, definingCalendar); case 'H': // Hour in day (0-23) return HOUR_OF_DAY_STRATEGY; case 'K': // Hour in am/pm (0-11) return HOUR_STRATEGY; case 'M': return formatField.length()>=3 ?getLocaleSpecificStrategy(Calendar.MONTH, definingCalendar) :NUMBER_MONTH_STRATEGY; case 'S': return MILLISECOND_STRATEGY; case 'W': return WEEK_OF_MONTH_STRATEGY; case 'a': return getLocaleSpecificStrategy(Calendar.AM_PM, definingCalendar); case 'd': return DAY_OF_MONTH_STRATEGY; case 'h': // Hour in am/pm (1-12), i.e. midday/midnight is 12, not 0 return HOUR12_STRATEGY; case 'k': // Hour in day (1-24), i.e. midnight is 24, not 0 return HOUR24_OF_DAY_STRATEGY; case 'm': return MINUTE_STRATEGY; case 's': return SECOND_STRATEGY; case 'w': return WEEK_OF_YEAR_STRATEGY; case 'y': return formatField.length()>2 ?LITERAL_YEAR_STRATEGY :ABBREVIATED_YEAR_STRATEGY; case 'X': return ISO8601TimeZoneStrategy.getStrategy(formatField.length()); case 'Z': if (formatField.equals("ZZ")) { return ISO_8601_STRATEGY; } //$FALL-THROUGH$ case 'z': return getLocaleSpecificStrategy(Calendar.ZONE_OFFSET, definingCalendar); } } @SuppressWarnings("unchecked") // OK because we are creating an array with no entries private static final ConcurrentMap[] caches = new ConcurrentMap[Calendar.FIELD_COUNT]; /** * Get a cache of Strategies for a particular field * @param field The Calendar field * @return a cache of Locale to Strategy */ private static ConcurrentMap getCache(final int field) { synchronized(caches) { if(caches[field]==null) { caches[field]= new ConcurrentHashMap(3); } return caches[field]; } } /** * Construct a Strategy that parses a Text field * @param field The Calendar field * @param definingCalendar The calendar to obtain the short and long values * @return a TextStrategy for the field and Locale */ private Strategy getLocaleSpecificStrategy(final int field, final Calendar definingCalendar) { final ConcurrentMap cache = getCache(field); Strategy strategy= cache.get(locale); if(strategy==null) { strategy= field==Calendar.ZONE_OFFSET ? new TimeZoneStrategy(locale) : new CaseInsensitiveTextStrategy(field, definingCalendar, locale); final Strategy inCache= cache.putIfAbsent(locale, strategy); if(inCache!=null) { return inCache; } } return strategy; } /** * A strategy that copies the static or quoted field in the parsing pattern */ private static class CopyQuotedStrategy extends Strategy { private final String formatField; /** * Construct a Strategy that ensures the formatField has literal text * @param formatField The literal text to match */ CopyQuotedStrategy(final String formatField) { this.formatField= formatField; } /** * {@inheritDoc} */ @Override boolean isNumber() { char c= formatField.charAt(0); if(c=='\'') { c= formatField.charAt(1); } return Character.isDigit(c); } /** * {@inheritDoc} */ @Override boolean addRegex(final FastDateParser parser, final StringBuilder regex) { escapeRegex(regex, formatField, true); return false; } } /** * A strategy that handles a text field in the parsing pattern */ private static class CaseInsensitiveTextStrategy extends Strategy { private final int field; private final Locale locale; private final Map lKeyValues; /** * Construct a Strategy that parses a Text field * @param field The Calendar field * @param definingCalendar The Calendar to use * @param locale The Locale to use */ CaseInsensitiveTextStrategy(final int field, final Calendar definingCalendar, final Locale locale) { this.field= field; this.locale= locale; final Map keyValues = getDisplayNames(field, definingCalendar, locale); this.lKeyValues= new HashMap(); for(final Map.Entry entry : keyValues.entrySet()) { lKeyValues.put(entry.getKey().toLowerCase(locale), entry.getValue()); } } /** * {@inheritDoc} */ @Override boolean addRegex(final FastDateParser parser, final StringBuilder regex) { regex.append("((?iu)"); for(final String textKeyValue : lKeyValues.keySet()) { escapeRegex(regex, textKeyValue, false).append('|'); } regex.setCharAt(regex.length()-1, ')'); return true; } /** * {@inheritDoc} */ @Override void setCalendar(final FastDateParser parser, final Calendar cal, final String value) { final Integer iVal = lKeyValues.get(value.toLowerCase(locale)); if(iVal == null) { final StringBuilder sb= new StringBuilder(value); sb.append(" not in ("); for(final String textKeyValue : lKeyValues.keySet()) { sb.append(textKeyValue).append(' '); } sb.setCharAt(sb.length()-1, ')'); throw new IllegalArgumentException(sb.toString()); } cal.set(field, iVal.intValue()); } } /** * A strategy that handles a number field in the parsing pattern */ private static class NumberStrategy extends Strategy { private final int field; /** * Construct a Strategy that parses a Number field * @param field The Calendar field */ NumberStrategy(final int field) { this.field= field; } /** * {@inheritDoc} */ @Override boolean isNumber() { return true; } /** * {@inheritDoc} */ @Override boolean addRegex(final FastDateParser parser, final StringBuilder regex) { // See LANG-954: We use {Nd} rather than {IsNd} because Android does not support the Is prefix if(parser.isNextNumber()) { regex.append("(\\p{Nd}{").append(parser.getFieldWidth()).append("}+)"); } else { regex.append("(\\p{Nd}++)"); } return true; } /** * {@inheritDoc} */ @Override void setCalendar(final FastDateParser parser, final Calendar cal, final String value) { cal.set(field, modify(Integer.parseInt(value))); } /** * Make any modifications to parsed integer * @param iValue The parsed integer * @return The modified value */ int modify(final int iValue) { return iValue; } } private static final Strategy ABBREVIATED_YEAR_STRATEGY = new NumberStrategy(Calendar.YEAR) { /** * {@inheritDoc} */ @Override void setCalendar(final FastDateParser parser, final Calendar cal, final String value) { int iValue= Integer.parseInt(value); if(iValue<100) { iValue= parser.adjustYear(iValue); } cal.set(Calendar.YEAR, iValue); } }; /** * A strategy that handles a timezone field in the parsing pattern */ private static class TimeZoneStrategy extends Strategy { private final String validTimeZoneChars; private final SortedMap tzNames= new TreeMap(String.CASE_INSENSITIVE_ORDER); /** * Index of zone id */ private static final int ID = 0; /** * Index of the long name of zone in standard time */ private static final int LONG_STD = 1; /** * Index of the short name of zone in standard time */ private static final int SHORT_STD = 2; /** * Index of the long name of zone in daylight saving time */ private static final int LONG_DST = 3; /** * Index of the short name of zone in daylight saving time */ private static final int SHORT_DST = 4; /** * Construct a Strategy that parses a TimeZone * @param locale The Locale */ TimeZoneStrategy(final Locale locale) { final String[][] zones = DateFormatSymbols.getInstance(locale).getZoneStrings(); for (final String[] zone : zones) { if (zone[ID].startsWith("GMT")) { continue; } final TimeZone tz = TimeZone.getTimeZone(zone[ID]); if (!tzNames.containsKey(zone[LONG_STD])){ tzNames.put(zone[LONG_STD], tz); } if (!tzNames.containsKey(zone[SHORT_STD])){ tzNames.put(zone[SHORT_STD], tz); } if (tz.useDaylightTime()) { if (!tzNames.containsKey(zone[LONG_DST])){ tzNames.put(zone[LONG_DST], tz); } if (!tzNames.containsKey(zone[SHORT_DST])){ tzNames.put(zone[SHORT_DST], tz); } } } final StringBuilder sb= new StringBuilder(); sb.append("(GMT[+-]\\d{1,2}:\\d{2}").append('|'); sb.append("[+-]\\d{4}").append('|'); for(final String id : tzNames.keySet()) { escapeRegex(sb, id, false).append('|'); } sb.setCharAt(sb.length()-1, ')'); validTimeZoneChars= sb.toString(); } /** * {@inheritDoc} */ @Override boolean addRegex(final FastDateParser parser, final StringBuilder regex) { regex.append(validTimeZoneChars); return true; } /** * {@inheritDoc} */ @Override void setCalendar(final FastDateParser parser, final Calendar cal, final String value) { TimeZone tz; if(value.charAt(0)=='+' || value.charAt(0)=='-') { tz= TimeZone.getTimeZone("GMT"+value); } else if(value.startsWith("GMT")) { tz= TimeZone.getTimeZone(value); } else { tz= tzNames.get(value); if(tz==null) { throw new IllegalArgumentException(value + " is not a supported timezone name"); } } cal.setTimeZone(tz); } } private static class ISO8601TimeZoneStrategy extends Strategy { // Z, +hh, -hh, +hhmm, -hhmm, +hh:mm or -hh:mm private final String pattern; /** * Construct a Strategy that parses a TimeZone * @param pattern The Pattern */ ISO8601TimeZoneStrategy(String pattern) { this.pattern = pattern; } /** * {@inheritDoc} */ @Override boolean addRegex(FastDateParser parser, StringBuilder regex) { regex.append(pattern); return true; } /** * {@inheritDoc} */ @Override void setCalendar(FastDateParser parser, Calendar cal, String value) { if (value.equals("Z")) { cal.setTimeZone(TimeZone.getTimeZone("UTC")); } else { cal.setTimeZone(TimeZone.getTimeZone("GMT" + value)); } } private static final Strategy ISO_8601_1_STRATEGY = new ISO8601TimeZoneStrategy("(Z|(?:[+-]\\d{2}))"); private static final Strategy ISO_8601_2_STRATEGY = new ISO8601TimeZoneStrategy("(Z|(?:[+-]\\d{2}\\d{2}))"); private static final Strategy ISO_8601_3_STRATEGY = new ISO8601TimeZoneStrategy("(Z|(?:[+-]\\d{2}(?::)\\d{2}))"); /** * Factory method for ISO8601TimeZoneStrategies. * * @param tokenLen a token indicating the length of the TimeZone String to be formatted. * @return a ISO8601TimeZoneStrategy that can format TimeZone String of length {@code tokenLen}. If no such * strategy exists, an IllegalArgumentException will be thrown. */ static Strategy getStrategy(int tokenLen) { switch(tokenLen) { case 1: return ISO_8601_1_STRATEGY; case 2: return ISO_8601_2_STRATEGY; case 3: return ISO_8601_3_STRATEGY; default: throw new IllegalArgumentException("invalid number of X"); } } } private static final Strategy NUMBER_MONTH_STRATEGY = new NumberStrategy(Calendar.MONTH) { @Override int modify(final int iValue) { return iValue-1; } }; private static final Strategy LITERAL_YEAR_STRATEGY = new NumberStrategy(Calendar.YEAR); private static final Strategy WEEK_OF_YEAR_STRATEGY = new NumberStrategy(Calendar.WEEK_OF_YEAR); private static final Strategy WEEK_OF_MONTH_STRATEGY = new NumberStrategy(Calendar.WEEK_OF_MONTH); private static final Strategy DAY_OF_YEAR_STRATEGY = new NumberStrategy(Calendar.DAY_OF_YEAR); private static final Strategy DAY_OF_MONTH_STRATEGY = new NumberStrategy(Calendar.DAY_OF_MONTH); private static final Strategy DAY_OF_WEEK_IN_MONTH_STRATEGY = new NumberStrategy(Calendar.DAY_OF_WEEK_IN_MONTH); private static final Strategy HOUR_OF_DAY_STRATEGY = new NumberStrategy(Calendar.HOUR_OF_DAY); private static final Strategy HOUR24_OF_DAY_STRATEGY = new NumberStrategy(Calendar.HOUR_OF_DAY) { @Override int modify(final int iValue) { return iValue == 24 ? 0 : iValue; } }; private static final Strategy HOUR12_STRATEGY = new NumberStrategy(Calendar.HOUR) { @Override int modify(final int iValue) { return iValue == 12 ? 0 : iValue; } }; private static final Strategy HOUR_STRATEGY = new NumberStrategy(Calendar.HOUR); private static final Strategy MINUTE_STRATEGY = new NumberStrategy(Calendar.MINUTE); private static final Strategy SECOND_STRATEGY = new NumberStrategy(Calendar.SECOND); private static final Strategy MILLISECOND_STRATEGY = new NumberStrategy(Calendar.MILLISECOND); private static final Strategy ISO_8601_STRATEGY = new ISO8601TimeZoneStrategy("(Z|(?:[+-]\\d{2}(?::?\\d{2})?))"); }





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