Examples of DateMathParser

org.apache.solr.util.DateMathParser
A Simple Utility class for parsing "math" like strings relating to Dates.
The basic syntax support addition, subtraction and rounding at various levels of granularity (or "units"). Commands can be chained together and are parsed from left to right. '+' and '-' denote addition and subtraction, while '/' denotes "round". Round requires only a unit, while addition/subtraction require an integer value and a unit. Command strings must not include white space, but the "No-Op" command (empty string) is allowed....
```
 /HOUR ... Round to the start of the current hour /DAY ... Round to the start of the current day +2YEARS ... Exactly two years in the future from now -1DAY ... Exactly 1 day prior to now /DAY+6MONTHS+3DAYS ... 6 months and 3 days in the future from the start of the current day +6MONTHS+3DAYS/DAY ... 6 months and 3 days in the future from now, rounded down to nearest day 
```
All commands are relative to a "now" which is fixed in an instance of DateMathParser such that p.parseMath("+0MILLISECOND").equals(p.parseMath("+0MILLISECOND")) no matter how many wall clock milliseconds elapse between the two distinct calls to parse (Assuming no other thread calls "setNow" in the interim)

Multiple aliases exist for the various units of time (ie: MINUTE and MINUTES; MILLI, MILLIS, MILLISECOND, and MILLISECONDS.) The complete list can be found by inspecting the keySet of CALENDAR_UNITS.
@version $Id:$
org.elasticsearch.common.joda.DateMathParser

Examples of org.apache.solr.util.DateMathParser

        return "Hello World";
      }
  }


  private void resetEvaluatorBagDateMathParser() {
    EvaluatorBag.dateMathParser = new DateMathParser(TimeZone
            .getDefault(), Locale.getDefault()){
      @Override
      public Date getNow() {
        return new Date();
      }

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Examples of org.apache.solr.util.DateMathParser

   * @param now an optional fixed date to use as "NOW" in the DateMathParser
   * @param val the string to parse
   */
  public Date parseMath(Date now, String val) {
    String math = null;
    final DateMathParser p = new DateMathParser(MATH_TZ, MATH_LOCALE);
    
    if (null != now) p.setNow(now);
    
    if (val.startsWith(NOW)) {
      math = val.substring(NOW.length());
    } else {
      final int zz = val.indexOf(Z);
      if (0 < zz) {
        math = val.substring(zz+1);
        try {
          // p.setNow(toObject(val.substring(0,zz)));
          p.setNow(parseDate(val.substring(0,zz+1)));
        } catch (ParseException e) {
          throw new SolrException( SolrException.ErrorCode.BAD_REQUEST,
                                   "Invalid Date in Date Math String:'"
                                   +val+'\'',e);
        }
      } else {
        throw new SolrException( SolrException.ErrorCode.BAD_REQUEST,
                                 "Invalid Date String:'" +val+'\'');
      }
    }


    if (null == math || math.equals("")) {
      return p.getNow();
    }
    
    try {
      return p.parseMath(math);
    } catch (ParseException e) {
      throw new SolrException( SolrException.ErrorCode.BAD_REQUEST,
                               "Invalid Date Math String:'" +val+'\'',e);
    }
  }

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Examples of org.apache.solr.util.DateMathParser

   * @param now an optional fixed date to use as "NOW" in the DateMathParser
   * @param val the string to parse
   */
  public Date parseMathLenient(Date now, String val, SolrQueryRequest req) {
    String math = null;
    final DateMathParser p = new DateMathParser(MATH_TZ, MATH_LOCALE);


    if (null != now) p.setNow(now);


    if (val.startsWith(NOW)) {
      math = val.substring(NOW.length());
    } else {
      final int zz = val.indexOf(Z);
      if (0 < zz) {
        math = val.substring(zz+1);
        try {
          // p.setNow(toObject(val.substring(0,zz)));
          p.setNow(parseDateLenient(val.substring(0,zz+1), req));
        } catch (ParseException e) {
          throw new SolrException( SolrException.ErrorCode.BAD_REQUEST,
                                   "Invalid Date in Date Math String:'"
                                   +val+'\'',e);
        }
      } else {
        throw new SolrException( SolrException.ErrorCode.BAD_REQUEST,
                                 "Invalid Date String:'" +val+'\'');
      }
    }


    if (null == math || math.equals("")) {
      return p.getNow();
    }


    try {
      return p.parseMath(math);
    } catch (ParseException e) {
      throw new SolrException( SolrException.ErrorCode.BAD_REQUEST,
                               "Invalid Date Math String:'" +val+'\'',e);
    }
  }

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Examples of org.apache.solr.util.DateMathParser

    
  }
  
  public void testParseStatelessness() throws Exception {


    DateMathParser p = new DateMathParser(UTC, Locale.US);
    p.setNow(parser.parse("2001-07-04T12:08:56.235"));


    String e = fmt.format(p.parseMath(""));
    
    Date trash = p.parseMath("+7YEARS");
    trash = p.parseMath("/MONTH");
    trash = p.parseMath("-5DAYS+20MINUTES");
    Thread.currentThread().sleep(5);
    
    String a = fmt.format(p.parseMath(""));
    assertEquals("State of DateMathParser changed", e, a);
  }

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Examples of org.apache.solr.util.DateMathParser

    assertEquals("State of DateMathParser changed", e, a);
  }
    
  public void testParseMath() throws Exception {


    DateMathParser p = new DateMathParser(UTC, Locale.US);
    p.setNow(parser.parse("2001-07-04T12:08:56.235"));


    // No-Op
    assertMath("2001-07-04T12:08:56.235", p, "");
    
    // simple round
    assertMath("2001-07-04T12:08:56.000", p, "/SECOND");
    assertMath("2001-07-04T12:08:00.000", p, "/MINUTE");
    assertMath("2001-07-04T12:00:00.000", p, "/HOUR");
    assertMath("2001-07-04T00:00:00.000", p, "/DAY");
    assertMath("2001-07-01T00:00:00.000", p, "/MONTH");
    assertMath("2001-01-01T00:00:00.000", p, "/YEAR");


    // simple addition
    assertMath("2001-07-04T12:08:56.236", p, "+1MILLISECOND");
    assertMath("2001-07-04T12:08:57.235", p, "+1SECOND");
    assertMath("2001-07-04T12:09:56.235", p, "+1MINUTE");
    assertMath("2001-07-04T13:08:56.235", p, "+1HOUR");
    assertMath("2001-07-05T12:08:56.235", p, "+1DAY");
    assertMath("2001-08-04T12:08:56.235", p, "+1MONTH");
    assertMath("2002-07-04T12:08:56.235", p, "+1YEAR");


    // simple subtraction
    assertMath("2001-07-04T12:08:56.234", p, "-1MILLISECOND");
    assertMath("2001-07-04T12:08:55.235", p, "-1SECOND");
    assertMath("2001-07-04T12:07:56.235", p, "-1MINUTE");
    assertMath("2001-07-04T11:08:56.235", p, "-1HOUR");
    assertMath("2001-07-03T12:08:56.235", p, "-1DAY");
    assertMath("2001-06-04T12:08:56.235", p, "-1MONTH");
    assertMath("2000-07-04T12:08:56.235", p, "-1YEAR");


    // simple '+/-'
    assertMath("2001-07-04T12:08:56.235", p, "+1MILLISECOND-1MILLISECOND");
    assertMath("2001-07-04T12:08:56.235", p, "+1SECOND-1SECOND");
    assertMath("2001-07-04T12:08:56.235", p, "+1MINUTE-1MINUTE");
    assertMath("2001-07-04T12:08:56.235", p, "+1HOUR-1HOUR");
    assertMath("2001-07-04T12:08:56.235", p, "+1DAY-1DAY");
    assertMath("2001-07-04T12:08:56.235", p, "+1MONTH-1MONTH");
    assertMath("2001-07-04T12:08:56.235", p, "+1YEAR-1YEAR");


    // simple '-/+'
    assertMath("2001-07-04T12:08:56.235", p, "-1MILLISECOND+1MILLISECOND");
    assertMath("2001-07-04T12:08:56.235", p, "-1SECOND+1SECOND");
    assertMath("2001-07-04T12:08:56.235", p, "-1MINUTE+1MINUTE");
    assertMath("2001-07-04T12:08:56.235", p, "-1HOUR+1HOUR");
    assertMath("2001-07-04T12:08:56.235", p, "-1DAY+1DAY");
    assertMath("2001-07-04T12:08:56.235", p, "-1MONTH+1MONTH");
    assertMath("2001-07-04T12:08:56.235", p, "-1YEAR+1YEAR");


    // more complex stuff
    assertMath("2000-07-04T12:08:56.236", p, "+1MILLISECOND-1YEAR");
    assertMath("2000-07-04T12:08:57.235", p, "+1SECOND-1YEAR");
    assertMath("2000-07-04T12:09:56.235", p, "+1MINUTE-1YEAR");
    assertMath("2000-07-04T13:08:56.235", p, "+1HOUR-1YEAR");
    assertMath("2000-07-05T12:08:56.235", p, "+1DAY-1YEAR");
    assertMath("2000-08-04T12:08:56.235", p, "+1MONTH-1YEAR");
    assertMath("2000-07-04T12:08:56.236", p, "-1YEAR+1MILLISECOND");
    assertMath("2000-07-04T12:08:57.235", p, "-1YEAR+1SECOND");
    assertMath("2000-07-04T12:09:56.235", p, "-1YEAR+1MINUTE");
    assertMath("2000-07-04T13:08:56.235", p, "-1YEAR+1HOUR");
    assertMath("2000-07-05T12:08:56.235", p, "-1YEAR+1DAY");
    assertMath("2000-08-04T12:08:56.235", p, "-1YEAR+1MONTH");
    assertMath("2000-07-01T00:00:00.000", p, "-1YEAR+1MILLISECOND/MONTH");
    assertMath("2000-07-04T00:00:00.000", p, "-1YEAR+1SECOND/DAY");
    assertMath("2000-07-04T00:00:00.000", p, "-1YEAR+1MINUTE/DAY");
    assertMath("2000-07-04T13:00:00.000", p, "-1YEAR+1HOUR/HOUR");
    assertMath("2000-07-05T12:08:56.000", p, "-1YEAR+1DAY/SECOND");
    assertMath("2000-08-04T12:08:56.000", p, "-1YEAR+1MONTH/SECOND");


    // "tricky" cases
    p.setNow(parser.parse("2006-01-31T17:09:59.999"));
    assertMath("2006-02-28T17:09:59.999", p, "+1MONTH");
    assertMath("2008-02-29T17:09:59.999", p, "+25MONTH");
    assertMath("2006-02-01T00:00:00.000", p, "/MONTH+35DAYS/MONTH");
    assertMath("2006-01-31T17:10:00.000", p, "+3MILLIS/MINUTE");

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Examples of org.apache.solr.util.DateMathParser

    
  }
  
  public void testParseMathExceptions() throws Exception {
    
    DateMathParser p = new DateMathParser(UTC, Locale.US);
    p.setNow(parser.parse("2001-07-04T12:08:56.235"));
    
    Map<String,Integer> badCommands = new HashMap<String,Integer>();
    badCommands.put("/", 1);
    badCommands.put("+", 1);
    badCommands.put("-", 1);
    badCommands.put("/BOB", 1);
    badCommands.put("+SECOND", 1);
    badCommands.put("-2MILLI/", 4);
    badCommands.put(" +BOB", 0);
    badCommands.put("+2SECONDS ", 3);
    badCommands.put("/4", 1);
    badCommands.put("?SECONDS", 0);


    for (String command : badCommands.keySet()) {
      try {
        Date out = p.parseMath(command);
        fail("Didn't generate ParseException for: " + command);
      } catch (ParseException e) {
        assertEquals("Wrong pos for: " + command + " => " + e.getMessage(),
                     badCommands.get(command).intValue(), e.getErrorOffset());

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Examples of org.apache.solr.util.DateMathParser


        // delete anything too old, regardless of other policies
        try {
          if (maxCommitAge != null) {
            if (maxCommitAgeTimeStamp==-1) {
              DateMathParser dmp = new DateMathParser(DateField.UTC, Locale.US);
              maxCommitAgeTimeStamp = dmp.parseMath(maxCommitAge).getTime();
            }
            if (commit.getTimestamp() < maxCommitAgeTimeStamp) {
              commit.delete();
              continue;
            }

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Examples of org.apache.solr.util.DateMathParser

    vri.addNamespace("dataimporter.functions", EvaluatorBag
            .getFunctionsNamespace(Collections.EMPTY_LIST,null));


    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
    format.setTimeZone(TimeZone.getTimeZone("UTC"));
    DateMathParser dmp = new DateMathParser(TimeZone.getDefault(), Locale.getDefault());


    String s = vri.replaceTokens("${dataimporter.functions.formatDate('NOW/DAY','yyyy-MM-dd HH:mm')}");
    Assert.assertEquals(new SimpleDateFormat("yyyy-MM-dd HH:mm").format(dmp.parseMath("/DAY")), s);
  }

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Examples of org.apache.solr.util.DateMathParser

    m.put("class",E.class.getName());
    l.add(m);


    SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
    format.setTimeZone(TimeZone.getTimeZone("UTC"));
    DateMathParser dmp = new DateMathParser(TimeZone.getDefault(), Locale.getDefault());


    resolver.addNamespace("dataimporter.functions", EvaluatorBag
            .getFunctionsNamespace(l,null));
    String s = resolver
            .replaceTokens("${dataimporter.functions.formatDate('NOW/DAY','yyyy-MM-dd HH:mm')}");
    Assert.assertEquals(new SimpleDateFormat("yyyy-MM-dd HH:mm")
            .format(dmp.parseMath("/DAY")), s);
    Assert.assertEquals("Hello World", resolver
            .replaceTokens("${dataimporter.functions.test('TEST')}"));
  }

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Examples of org.apache.solr.util.DateMathParser

  protected DateField f = null;
  protected DateMathParser p = null;
  
  public void setUp() throws Exception {
    super.setUp();
    p = new DateMathParser(UTC, Locale.US);
    f = new DateField();
    // so test can be run against Solr 1.2...
    try {
      Class clazz = Class.forName("org.apache.solr.schema.LegacyDateField");
      f = (DateField) clazz.newInstance();

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