| /******************************************************************************* |
| * Copyright (c) 2012, 2016 Ericsson |
| * |
| * All rights reserved. This program and the accompanying materials are |
| * made available under the terms of the Eclipse Public License 2.0 which |
| * accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * Francois Chouinard - Initial API and implementation |
| * Marc-Andre Laperle - Add time zone preference |
| * Patrick Tasse - Updated for negative value formatting and fraction of sec |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.tmf.core.timestamp; |
| |
| import java.text.DecimalFormat; |
| import java.text.ParseException; |
| import java.text.SimpleDateFormat; |
| 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.TimeZone; |
| |
| import org.eclipse.jdt.annotation.NonNull; |
| |
| /** |
| * A formatting and parsing facility that can handle timestamps that span the |
| * epoch with a precision down to the nanosecond. It can be understood as an |
| * extension of SimpleDateFormat that supports seconds since the epoch (Jan 1, |
| * 1970, 00:00:00 GMT), additional sub-second patterns and optional delimiters. |
| * <p> |
| * The timestamp representation is broken down into a number of optional |
| * components that can be assembled into a fairly simple way. |
| * |
| * <h4>Date and Time Patterns</h4> |
| * All date and time pattern letters defined in {@link SimpleDateFormat} are |
| * supported with the following exceptions: |
| * <blockquote> |
| * <table border=0 cellspacing=3 cellpadding=0 > |
| * <tr> |
| * <th align=left>Format |
| * <th align=left>Description |
| * <th align=left>Value Range |
| * <th align=left>Example |
| * <tr> |
| * <td><code>T</code> |
| * <td>The seconds since the epoch |
| * <td><code>0-9223372036</code> |
| * <td><code>1332170682</code> |
| * <tr> |
| * <td><code>Td</code> |
| * <td>The deciseconds since the epoch |
| * <td><code>0-92233720368</code> |
| * <td><code>13321706825</code> |
| * <tr> |
| * <td><code>Tc</code> |
| * <td>The centiseconds since the epoch |
| * <td><code>0-922337203685</code> |
| * <td><code>133217068253</code> |
| * <tr> |
| * <td><code>Tm</code> |
| * <td>The milliseconds since the epoch |
| * <td><code>0-9223372036854</code> |
| * <td><code>1332170682539</code> |
| * <tr> |
| * <td><code>Tu</code> |
| * <td>The microseconds since the epoch |
| * <td><code>0-9223372036854775</code> |
| * <td><code>1332170682539677</code> |
| * <tr> |
| * <td><code>Tn</code> |
| * <td>The nanoseconds since the epoch |
| * <td><code>0-9223372036854775807</code> |
| * <td><code>1332170682539677389</code> |
| * <tr> |
| * <td><code>S</code> |
| * <td>Millisecond |
| * <td><code>N/A</code> |
| * <td><code>Not supported</code> |
| * <tr> |
| * <td><code>W</code> |
| * <td>Week in month |
| * <td><code>N/A</code> |
| * <td><code>Not supported</code> |
| * </table> |
| * </blockquote> |
| * <p> |
| * <strong>Note:</strong> When parsing, if "T" is used, no other Date and Time |
| * pattern letter will be interpreted and the entire pre-delimiter input string |
| * will be parsed as a number. Also, "T" should be used for time intervals. |
| * <p> |
| * <strong>Note:</strong> The decimal separator between the Date and Time |
| * pattern and the Sub-Seconds pattern is mandatory (if there is a fractional |
| * part) and must be one of the sub-second delimiters. Date and Time pattern |
| * letters are not interpreted after the decimal separator. |
| * <p> |
| * <h4>Sub-Seconds Patterns</h4> |
| * <blockquote> |
| * <table border=0 cellspacing=3 cellpadding=0 > |
| * <tr> |
| * <th align=left>Format |
| * <th align=left>Description |
| * <th align=left>Value Range |
| * <th align=left>Example |
| * <tr> |
| * <td><code>S</code> |
| * <td>Fraction of second (or unit of second) |
| * <td><code>0-999999999</code> |
| * <td><code>123456789</code> |
| * <tr> |
| * <td><code>C</code> |
| * <td>Microseconds in ms |
| * <td><code>0-999</code> |
| * <td><code>456</code> |
| * <tr> |
| * <td><code>N</code> |
| * <td>Nanoseconds in µs |
| * <td><code>0-999</code> |
| * <td><code>789</code> |
| * </table> |
| * </blockquote> |
| * <strong>Note:</strong> The fraction of second pattern can be split, in which |
| * case parsing and formatting continues at the next digit. Digits beyond the |
| * total number of pattern letters are ignored when parsing and truncated when |
| * formatting. |
| * <p> |
| * <strong>Note:</strong> When parsing, "S", "C" and "N" are interchangeable |
| * and are all handled as fraction of second ("S"). The use of "C" and "N" is |
| * discouraged but is supported for backward compatibility. |
| * <p> |
| * |
| * The recognized sub-second delimiters are: |
| * <ul> |
| * <li>Space ("<code> </code>") |
| * <li>Period ("<code>.</code>") |
| * <li>Comma ("<code>,</code>") |
| * <li>Dash ("<code>-</code>") |
| * <li>Underline ("<code>_</code>") |
| * <li>Colon ("<code>:</code>") |
| * <li>Semicolon ("<code>;</code>") |
| * <li>Slash ("<code>/</code>") |
| * <li>Single-quote ("<code>''</code>") |
| * <li>Double-quote ("<code>"</code>") |
| * </ul> |
| * <p> |
| * <strong>Note:</strong> When parsing, sub-second delimiters are optional if |
| * unquoted. However, an extra delimiter or any other unexpected character in |
| * the input string ends the parsing of digits. All other quoted or unquoted |
| * characters in the sub-second pattern are matched against the input string. |
| * |
| * <h4>Examples</h4> |
| * The following examples show how timestamp patterns are interpreted in |
| * the U.S. locale. The given timestamp is 1332170682539677389L, the number |
| * of nanoseconds since 1970/01/01. |
| * |
| * <blockquote> |
| * <table border=0 cellspacing=3 cellpadding=0> |
| * <tr> |
| * <th align=left>Date and Time Pattern |
| * <th align=left>Result |
| * <tr> |
| * <td><code>"yyyy-MM-dd HH:mm:ss.SSS.SSS.SSS"</code> |
| * <td><code>2012-03-19 11:24:42.539.677.389</code> |
| * <tr> |
| * <td><code>"yyyy-MM-dd HH:mm:ss.SSS.SSS"</code> |
| * <td><code>2012-03-19 11:24:42.539.677</code> |
| * <tr> |
| * <td><code>"yyyy-D HH:mm:ss.SSS.SSS"</code> |
| * <td><code>2012-79 11:24:42.539.677</code> |
| * <tr> |
| * <td><code>"ss,SSSS"</code> |
| * <td><code>42,5397</code> |
| * <tr> |
| * <td><code>"T.SSS SSS SSS"</code> |
| * <td><code>1332170682.539 677 389</code> |
| * <tr> |
| * <td><code>"T"</code> |
| * <td><code>1332170682</code> |
| * <tr> |
| * <td><code>"Tm.SSSSSS"</code> |
| * <td><code>1332170682539.677389</code> |
| * <tr> |
| * <td><code>"Tn"</code> |
| * <td><code>1332170682539677389</code> |
| * </table> |
| * </blockquote> |
| * <p> |
| * @author Francois Chouinard |
| */ |
| public class TmfTimestampFormat extends SimpleDateFormat { |
| |
| // ------------------------------------------------------------------------ |
| // Constants |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * This class' serialization ID |
| */ |
| private static final long serialVersionUID = 2835829763122454020L; |
| |
| /** |
| * The default timestamp pattern |
| */ |
| public static final String DEFAULT_TIME_PATTERN = "HH:mm:ss.SSS SSS SSS"; //$NON-NLS-1$ |
| |
| /** |
| * The default interval pattern |
| */ |
| public static final String DEFAULT_INTERVAL_PATTERN = "TTT.SSS SSS SSS"; //$NON-NLS-1$ |
| |
| // ------------------------------------------------------------------------ |
| // Attributes |
| // ------------------------------------------------------------------------ |
| |
| // The default timestamp pattern |
| private static TmfTimestampFormat fDefaultTimeFormat = null; |
| |
| // The default time interval format |
| private static TmfTimestampFormat fDefaultIntervalFormat = null; |
| |
| // The timestamp pattern |
| private @NonNull String fPattern; |
| |
| // The index of the decimal separator in the pattern |
| private int fPatternDecimalSeparatorIndex; |
| |
| // The decimal separator |
| private char fDecimalSeparator = '\0'; |
| |
| // The date and time pattern unquoted characters |
| private String fDateTimePattern; |
| |
| // The sub-seconds pattern |
| private String fSubSecPattern; |
| |
| // The list of supplementary patterns |
| private List<String> fSupplPatterns = new ArrayList<>(); |
| |
| // The unit of seconds denominator e.g. 10^9 for ns |
| private long fUnitOfSeconds = 1; |
| |
| // The locale |
| private final Locale fLocale; |
| |
| /** |
| * The supplementary pattern letters. Can be redefined by sub-classes |
| * to either override existing letters or augment the letter set. |
| * If so, the format() method must provide the (re-)implementation of the |
| * pattern. |
| */ |
| protected String fSupplPatternLetters = "TSCN"; //$NON-NLS-1$ |
| /** |
| * The sub-second pattern letters. |
| */ |
| protected String fSubSecPatternChars = "SCN"; //$NON-NLS-1$ |
| /** |
| * The optional sub-second delimiter characters. |
| */ |
| protected String fDelimiterChars = " .,-_:;/'\""; //$NON-NLS-1$ |
| /** |
| * The map of optional unit of seconds suffix characters that can follow the |
| * T pattern. The map value is the unit of seconds denominator. |
| * |
| * @since 2.0 |
| */ |
| protected Map<Character, Long> fUnitOfSecondsMap = new HashMap<>(); |
| { |
| fUnitOfSecondsMap.put('d', 10L); |
| fUnitOfSecondsMap.put('c', 100L); |
| fUnitOfSecondsMap.put('m', 1000L); |
| fUnitOfSecondsMap.put('u', 1000000L); |
| fUnitOfSecondsMap.put('n', 1000000000L); |
| } |
| |
| /* |
| * The bracketing symbols used to mitigate the risk of a format string |
| * that contains escaped sequences that would conflict with our format |
| * extension. |
| */ |
| /** The open bracket symbol */ |
| protected String fOpenBracket = "[&"; //$NON-NLS-1$ |
| |
| /** The closing bracket symbol */ |
| protected String fCloseBracket = "&]"; //$NON-NLS-1$ |
| |
| // ------------------------------------------------------------------------ |
| // Constructors |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * The default constructor (uses the default pattern) |
| */ |
| public TmfTimestampFormat() { |
| this(TmfTimePreferences.getTimePattern()); |
| } |
| |
| /** |
| * The normal constructor |
| * |
| * @param pattern the format pattern |
| */ |
| public TmfTimestampFormat(@NonNull String pattern) { |
| fLocale = Locale.getDefault(); |
| fPattern = pattern; |
| applyPattern(pattern); |
| } |
| |
| /** |
| * The full constructor |
| * |
| * @param pattern the format pattern |
| * @param timeZone the time zone |
| */ |
| public TmfTimestampFormat(@NonNull String pattern, TimeZone timeZone) { |
| fLocale = Locale.getDefault(); |
| setTimeZone(timeZone); |
| fPattern = pattern; |
| applyPattern(pattern); |
| } |
| |
| /** |
| * The fuller constructor |
| * |
| * @param pattern the format pattern |
| * @param timeZone the time zone |
| * @param locale the locale |
| */ |
| public TmfTimestampFormat(@NonNull String pattern, TimeZone timeZone, Locale locale) { |
| super("", locale); //$NON-NLS-1$ |
| fLocale = locale; |
| setTimeZone(timeZone); |
| setCalendar(Calendar.getInstance(timeZone, locale)); |
| fPattern = pattern; |
| applyPattern(pattern); |
| } |
| |
| /** |
| * The copy constructor |
| * |
| * @param other the other format pattern |
| */ |
| public TmfTimestampFormat(TmfTimestampFormat other) { |
| this(other.fPattern, other.getTimeZone(), other.fLocale); |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Getters/setters |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * Update the default time and default interval formats |
| */ |
| public static synchronized void updateDefaultFormats() { |
| fDefaultTimeFormat = new TmfTimestampFormat( |
| TmfTimePreferences.getTimePattern(), |
| TmfTimePreferences.getTimeZone(), |
| TmfTimePreferences.getLocale()); |
| fDefaultIntervalFormat = new TmfTimestampFormat(TmfTimePreferences.getIntervalPattern()); |
| } |
| |
| /** |
| * @return the default time format pattern |
| */ |
| public static synchronized TmfTimestampFormat getDefaulTimeFormat() { |
| if (fDefaultTimeFormat == null) { |
| fDefaultTimeFormat = new TmfTimestampFormat( |
| TmfTimePreferences.getTimePattern(), |
| TmfTimePreferences.getTimeZone(), |
| TmfTimePreferences.getLocale()); |
| } |
| return fDefaultTimeFormat; |
| } |
| |
| /** |
| * @return the default interval format pattern |
| */ |
| public static synchronized TmfTimestampFormat getDefaulIntervalFormat() { |
| if (fDefaultIntervalFormat == null) { |
| fDefaultIntervalFormat = new TmfTimestampFormat(TmfTimePreferences.getIntervalPattern()); |
| } |
| return fDefaultIntervalFormat; |
| } |
| |
| @Override |
| public void applyPattern(String pattern) { |
| if (pattern == null) { |
| throw new NullPointerException("TmfTimestampFormat: pattern should not be null"); //$NON-NLS-1$ |
| } |
| fPattern = pattern; |
| fPatternDecimalSeparatorIndex = indexOfPatternDecimalSeparator(pattern); |
| fDateTimePattern = unquotePattern(pattern.substring(0, fPatternDecimalSeparatorIndex)); |
| // Check that 'S' is not present in the date and time pattern |
| if (fDateTimePattern.indexOf('S') != -1) { |
| throw new IllegalArgumentException("Illegal pattern character 'S'"); //$NON-NLS-1$ |
| } |
| // Check that 'W' is not present in the date and time pattern |
| if (fDateTimePattern.indexOf('W') != -1) { |
| throw new IllegalArgumentException("Illegal pattern character 'W'"); //$NON-NLS-1$ |
| } |
| // The super pattern is the date/time pattern, quoted and bracketed |
| super.applyPattern(quoteSpecificTags(pattern.substring(0, fPatternDecimalSeparatorIndex), true)); |
| // The sub-seconds pattern is bracketed (but not quoted) |
| fSubSecPattern = quoteSpecificTags(pattern.substring(fPatternDecimalSeparatorIndex), false); |
| } |
| |
| @Override |
| public @NonNull String toPattern() { |
| return fPattern; |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Operations |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * Format the timestamp according to its pattern. |
| * |
| * @param value the timestamp value to format (in ns) |
| * @return the formatted timestamp |
| */ |
| public synchronized String format(long value) { |
| |
| // Split the timestamp value into its sub-components |
| long date = value / 1000000; // milliseconds since January 1, 1970, 00:00:00 GMT |
| long sec = value / 1000000000; // seconds since January 1, 1970, 00:00:00 GMT |
| long ms = Math.abs((value % 1000000000) / 1000000); // 0-999 milliseconds |
| long us = Math.abs((value % 1000000) / 1000); // 0-999 microseconds |
| long ns = Math.abs(value % 1000); // 0-999 nanoseconds |
| |
| // Adjust for negative value when formatted as a date |
| if (value < 0 && ms + us + ns > 0 && !super.toPattern().contains(fOpenBracket + "T")) { //$NON-NLS-1$ |
| date -= 1; |
| long nanosec = 1000000000 - (1000000 * ms + 1000 * us + ns); |
| ms = nanosec / 1000000; |
| us = (nanosec % 1000000) / 1000; |
| ns = nanosec % 1000; |
| } |
| |
| // Let the base class format the date/time pattern |
| StringBuffer result = new StringBuffer(super.format(date)); |
| // Append the sub-second pattern |
| result.append(fSubSecPattern); |
| |
| int fractionDigitsPrinted = 0; |
| // Fill in our extensions |
| for (String pattern : fSupplPatterns) { |
| int length = pattern.length(); |
| long val = 0; |
| int bufLength = 0; |
| |
| // Format the proper value as per the pattern |
| switch (pattern.charAt(0)) { |
| case 'T': |
| if (value < 0 && sec == 0) { |
| result.insert(0, '-'); |
| } |
| val = sec; |
| if (fUnitOfSeconds != 1) { |
| // Avoid multiplication to prevent overflow |
| val = value / (1000000000 / fUnitOfSeconds); |
| } |
| bufLength = Math.min(length, 10); |
| break; |
| case 'S': |
| val = 1000000 * ms + 1000 * us + ns; |
| if (fUnitOfSeconds != 1) { |
| val *= fUnitOfSeconds; |
| val %= 1000000000; |
| } |
| bufLength = 9; |
| break; |
| case 'C': |
| val = us; |
| bufLength = Math.min(length, 3); |
| break; |
| case 'N': |
| val = ns; |
| bufLength = Math.min(length, 3); |
| break; |
| default: |
| break; |
| } |
| |
| // Prepare the format buffer |
| StringBuffer fmt = new StringBuffer(); |
| for (int i = 0; i < bufLength; i++) { |
| fmt.append("0"); //$NON-NLS-1$ |
| } |
| DecimalFormat dfmt = new DecimalFormat(fmt.toString()); |
| String fmtVal = dfmt.format(val); |
| if (pattern.charAt(0) == 'S') { |
| fmtVal = fmtVal.substring(fractionDigitsPrinted, Math.min(bufLength, fractionDigitsPrinted + length)); |
| fractionDigitsPrinted += fmtVal.length(); |
| } |
| |
| // Substitute the placeholder pattern with the formatted value |
| String ph = new StringBuffer(fOpenBracket + pattern + fCloseBracket).toString(); |
| int loc = result.indexOf(ph); |
| result.replace(loc, loc + length + fOpenBracket.length() + fCloseBracket.length(), fmtVal); |
| } |
| |
| return result.toString(); |
| } |
| |
| /** |
| * Parse a string according to the format pattern |
| * |
| * @param source the source string |
| * @param ref the reference (base) time (in ns) |
| * @return the parsed value (in ns) |
| * @throws ParseException if the string has an invalid format |
| */ |
| public synchronized long parseValue(final String source, final long ref) throws ParseException { |
| |
| // Trivial case |
| if (source == null || source.length() == 0) { |
| return 0; |
| } |
| |
| int index = indexOfSourceDecimalSeparator(source); |
| |
| // Check for seconds in epoch pattern |
| for (String pattern : fSupplPatterns) { |
| if (pattern.charAt(0) == 'T') { |
| long unitsOfSecond = 0; |
| boolean isNegative = source.charAt(0) == '-'; |
| // Remove everything up to the decimal separator and compute the |
| // number of seconds since the epoch. If there is no period, |
| // assume an integer value and return immediately |
| if (index == 0 || (isNegative && index <= 1)) { |
| unitsOfSecond = 0; |
| } else if (index == source.length()) { |
| return new DecimalFormat("0").parse(source).longValue() * (1000000000 / fUnitOfSeconds); //$NON-NLS-1$ |
| } else { |
| unitsOfSecond = new DecimalFormat("0").parse(source.substring(0, index)).longValue(); //$NON-NLS-1$ |
| } |
| long nanos = parseSubSeconds(source.substring(index)); |
| if (isNegative) { |
| nanos = -nanos; |
| } |
| // Compute the value in ns |
| return unitsOfSecond * (1000000000 / fUnitOfSeconds) + nanos; |
| } |
| } |
| |
| // If there was no "T", parse as a date |
| long seconds = 0; |
| if (super.toPattern().length() > 0) { |
| Date baseDate = super.parse(source.substring(0, index)); |
| getCalendar(); |
| |
| if (ref != Long.MIN_VALUE) { |
| Calendar baseTime = Calendar.getInstance(getTimeZone(), fLocale); |
| baseTime.setTimeInMillis(baseDate.getTime()); |
| Calendar newTime = Calendar.getInstance(getTimeZone(), fLocale); |
| newTime.setTimeInMillis(ref / 1000000); |
| boolean setRemainingFields = false; |
| if (dateTimePatternContains("yY")) { //$NON-NLS-1$ |
| newTime.set(Calendar.YEAR, baseTime.get(Calendar.YEAR)); |
| setRemainingFields = true; |
| } |
| if (setRemainingFields || dateTimePatternContains("M")) { //$NON-NLS-1$ |
| newTime.set(Calendar.MONTH, baseTime.get(Calendar.MONTH)); |
| setRemainingFields = true; |
| } |
| if (setRemainingFields || dateTimePatternContains("d")) { //$NON-NLS-1$ |
| newTime.set(Calendar.DATE, baseTime.get(Calendar.DATE)); |
| setRemainingFields = true; |
| } else if (dateTimePatternContains("D")) { //$NON-NLS-1$ |
| newTime.set(Calendar.DAY_OF_YEAR, baseTime.get(Calendar.DAY_OF_YEAR)); |
| setRemainingFields = true; |
| } else if (dateTimePatternContains("w")) { //$NON-NLS-1$ |
| newTime.set(Calendar.WEEK_OF_YEAR, baseTime.get(Calendar.WEEK_OF_YEAR)); |
| setRemainingFields = true; |
| } |
| if (dateTimePatternContains("F")) { //$NON-NLS-1$ |
| newTime.set(Calendar.DAY_OF_WEEK_IN_MONTH, baseTime.get(Calendar.DAY_OF_WEEK_IN_MONTH)); |
| setRemainingFields = true; |
| } |
| if (dateTimePatternContains("Eu")) { //$NON-NLS-1$ |
| newTime.set(Calendar.DAY_OF_WEEK, baseTime.get(Calendar.DAY_OF_WEEK)); |
| setRemainingFields = true; |
| } |
| if (setRemainingFields || dateTimePatternContains("aHkKh")) { //$NON-NLS-1$ |
| newTime.set(Calendar.HOUR_OF_DAY, baseTime.get(Calendar.HOUR_OF_DAY)); |
| setRemainingFields = true; |
| } |
| if (setRemainingFields || dateTimePatternContains("m")) { //$NON-NLS-1$ |
| newTime.set(Calendar.MINUTE, baseTime.get(Calendar.MINUTE)); |
| setRemainingFields = true; |
| } |
| if (setRemainingFields || dateTimePatternContains("s")) { //$NON-NLS-1$ |
| newTime.set(Calendar.SECOND, baseTime.get(Calendar.SECOND)); |
| } |
| newTime.set(Calendar.MILLISECOND, 0); |
| seconds = newTime.getTimeInMillis() / 1000; |
| } else { |
| seconds = baseDate.getTime() / 1000; |
| } |
| } else if (ref != Long.MIN_VALUE) { |
| // If the date and time pattern is empty, adjust for reference |
| seconds = ref / 1000000000; |
| } |
| |
| long nanos = parseSubSeconds(source.substring(index)); |
| |
| // Compute the value in ns |
| return seconds * 1000000000 + nanos; |
| } |
| |
| /** |
| * Parse a string according to the format pattern |
| * |
| * @param source the source string |
| * @return the parsed value (in ns) |
| * @throws ParseException if the string has an invalid format |
| */ |
| public long parseValue(final String source) throws ParseException { |
| long result = parseValue(source, Long.MIN_VALUE); |
| return result; |
| |
| } |
| |
| // ------------------------------------------------------------------------ |
| // Helper functions |
| // ------------------------------------------------------------------------ |
| |
| /** |
| * Finds the index of the decimal separator in the pattern string, which is |
| * the last delimiter found before the first sub-second pattern character. |
| * Returns the pattern string length if decimal separator is not found. |
| */ |
| private int indexOfPatternDecimalSeparator(String pattern) { |
| int lastDelimiterIndex = pattern.length(); |
| boolean inQuote = false; |
| int index = 0; |
| while (index < pattern.length()) { |
| char ch = pattern.charAt(index); |
| if (ch == '\'') { |
| if (index + 1 < pattern.length()) { |
| index++; |
| ch = pattern.charAt(index); |
| if (ch != '\'') { |
| inQuote = !inQuote; |
| } |
| } |
| } |
| if (!inQuote) { |
| if (fSubSecPatternChars.indexOf(ch) != -1) { |
| if (lastDelimiterIndex < pattern.length()) { |
| fDecimalSeparator = pattern.charAt(lastDelimiterIndex); |
| } |
| return lastDelimiterIndex; |
| } |
| if (fDelimiterChars.indexOf(ch) != -1) { |
| lastDelimiterIndex = index; |
| if (ch == '\'') { |
| lastDelimiterIndex--; |
| } |
| } |
| } |
| index++; |
| } |
| return pattern.length(); |
| } |
| |
| /** |
| * Finds the first index of a decimal separator in the source string. |
| * Skips the number of decimal separators in the format pattern. |
| * Returns the source string length if decimal separator is not found. |
| */ |
| private int indexOfSourceDecimalSeparator(String source) { |
| String separator = fDecimalSeparator == '\'' ? "''" : String.valueOf(fDecimalSeparator); //$NON-NLS-1$ |
| int patternPos = fPattern.indexOf(separator); |
| int sourcePos = -1; |
| while (patternPos != -1 && patternPos <= fPatternDecimalSeparatorIndex) { |
| sourcePos = source.indexOf(fDecimalSeparator, sourcePos + 1); |
| if (sourcePos == -1) { |
| break; |
| } |
| // skip optional spaces and tabs before a pattern letter |
| char p = patternPos < fPattern.length() - 1 ? fPattern.charAt(patternPos + 1) : '\0'; |
| if ((p >= 'a' && p <= 'z') || (p >= 'A' && p <= 'Z')) { |
| while (sourcePos < source.length() - 1) { |
| char s = source.charAt(sourcePos + 1); |
| if (s == ' ' || s == '\t') { |
| sourcePos++; |
| } else { |
| break; |
| } |
| } |
| } |
| patternPos = fPattern.indexOf(separator, patternPos + separator.length()); |
| } |
| if (sourcePos == -1) { |
| sourcePos = source.length(); |
| } |
| return sourcePos; |
| } |
| |
| /** |
| * Parse the sub-second digits in the input. Handle delimiters as optional |
| * characters. Match any non-pattern and non-delimiter pattern characters |
| * against the input. Returns the number of nanoseconds. |
| */ |
| private long parseSubSeconds(String input) throws ParseException { |
| StringBuilder digits = new StringBuilder("000000000"); //$NON-NLS-1$ |
| String pattern = fPattern.substring(fPatternDecimalSeparatorIndex); |
| boolean inQuote = false; |
| int digitIndex = 0; |
| int inputIndex = 0; |
| int patternIndex = 0; |
| while (patternIndex < pattern.length()) { |
| char ch = pattern.charAt(patternIndex); |
| if (ch == '\'') { |
| patternIndex++; |
| if (patternIndex < pattern.length()) { |
| ch = pattern.charAt(patternIndex); |
| if (ch != '\'') { |
| inQuote = !inQuote; |
| } |
| } else if (inQuote) { |
| // final end quote |
| break; |
| } |
| } |
| if (fDelimiterChars.indexOf(ch) != -1 && !inQuote) { |
| // delimiter is optional if not in quote |
| if (inputIndex < input.length() && input.charAt(inputIndex) == ch) { |
| inputIndex++; |
| } |
| patternIndex++; |
| continue; |
| } else if (fSubSecPatternChars.indexOf(ch) != -1 && !inQuote) { |
| // read digit if not in quote |
| if (inputIndex < input.length() && Character.isDigit(input.charAt(inputIndex))) { |
| if (digitIndex < digits.length()) { |
| digits.setCharAt(digitIndex, input.charAt(inputIndex)); |
| digitIndex++; |
| } |
| inputIndex++; |
| } else { |
| // not a digit, stop parsing digits |
| digitIndex = digits.length(); |
| } |
| patternIndex++; |
| continue; |
| } |
| if (inputIndex >= input.length() || input.charAt(inputIndex) != ch) { |
| throw new ParseException("Unparseable sub-seconds: \"" + input + '\"', inputIndex); //$NON-NLS-1$ |
| } |
| patternIndex++; |
| inputIndex++; |
| } |
| return Long.parseLong(digits.toString()) / fUnitOfSeconds; |
| } |
| |
| /** |
| * Copy the pattern but quote (bracket with "[&" and "&]") the |
| * TmfTimestampFormat specific tags. Optionally surround tags with single |
| * quotes so these fields are treated as comments by the base class. |
| * |
| * It also keeps track of the corresponding quoted fields so they can be |
| * properly populated later on (by format()). |
| * |
| * @param pattern |
| * the 'extended' pattern |
| * @param includeQuotes |
| * true to include quotes from pattern and add single quotes |
| * around tags |
| * @return the quoted and bracketed pattern |
| */ |
| private String quoteSpecificTags(final String pattern, boolean includeQuotes) { |
| |
| StringBuffer result = new StringBuffer(); |
| |
| int length = pattern.length(); |
| boolean inQuote = false; |
| |
| for (int i = 0; i < length; i++) { |
| char c = pattern.charAt(i); |
| if (c != '\'' || includeQuotes) { |
| result.append(c); |
| } |
| if (c == '\'') { |
| // '' is treated as a single quote regardless of being |
| // in a quoted section. |
| if ((i + 1) < length) { |
| c = pattern.charAt(i + 1); |
| if (c == '\'') { |
| i++; |
| result.append(c); |
| continue; |
| } |
| } |
| inQuote = !inQuote; |
| continue; |
| } |
| if (!inQuote && (fSupplPatternLetters.indexOf(c) != -1)) { |
| if (pattern.charAt(0) == fDecimalSeparator) { |
| if (fSubSecPatternChars.indexOf(c) == -1) { |
| // do not quote non-sub-second pattern letters in sub-second pattern |
| continue; |
| } |
| } else { |
| if (fSubSecPatternChars.indexOf(c) != -1) { |
| // do not quote sub-second pattern letters in date and time pattern |
| continue; |
| } |
| } |
| StringBuilder pat = new StringBuilder(); |
| pat.append(c); |
| if (includeQuotes) { |
| result.insert(result.length() - 1, "'"); //$NON-NLS-1$ |
| } |
| result.insert(result.length() - 1, fOpenBracket); |
| while ((i + 1) < length && pattern.charAt(i + 1) == c) { |
| result.append(c); |
| pat.append(c); |
| i++; |
| } |
| if (c == 'T' && (i + 1) < length) { |
| c = pattern.charAt(i + 1); |
| Long unitOfSeconds = fUnitOfSecondsMap.get(c); |
| if (unitOfSeconds != null) { |
| fUnitOfSeconds = unitOfSeconds; |
| i++; |
| } |
| } |
| result.append(fCloseBracket); |
| if (includeQuotes) { |
| result.append("'"); //$NON-NLS-1$ |
| } |
| fSupplPatterns.add(pat.toString()); |
| } |
| } |
| return result.toString(); |
| } |
| |
| /** |
| * Returns the unquoted characters in this pattern. |
| */ |
| private static String unquotePattern(String pattern) { |
| boolean inQuote = false; |
| int index = 0; |
| StringBuilder result = new StringBuilder(); |
| while (index < pattern.length()) { |
| char ch = pattern.charAt(index); |
| if (ch == '\'') { |
| if (index + 1 < pattern.length()) { |
| index++; |
| ch = pattern.charAt(index); |
| if (ch != '\'') { |
| inQuote = !inQuote; |
| } |
| } |
| } |
| if (!inQuote) { |
| result.append(ch); |
| } |
| index++; |
| } |
| return result.toString(); |
| } |
| |
| /** |
| * Returns true if the date and time pattern contains any of these chars. |
| */ |
| private boolean dateTimePatternContains(String chars) { |
| int index = 0; |
| while (index < chars.length()) { |
| char ch = chars.charAt(index); |
| if (fDateTimePattern.indexOf(ch) != -1) { |
| return true; |
| } |
| index++; |
| } |
| return false; |
| } |
| } |
