Examples of ch.agent.t2.timeutil.DayExpression

ch.agent.t2.time.Range
A DayExpression allows to express times symbolically. The syntax of a day expression has the following informal grammar:
```
 expression := (today|start|end|date)(+|-integer) date := yyyy-mm-dd 
```
In words, a day expression is a keyword or a date followed by zero or more positive or negative offsets. The keywords are today, start and end. To be resolved as a time index, a day expression requires a context. Possible contexts a time domain or a range. The keywords start and end can only be resolved in the context of a range. For example, the expression end-2+1 corresponds to the upper bound of the context range, minus 1. Day expressions can be incremented without being resolved. For example, incrementing the expression start by 2 equals start+2.
The date part is a day in the standard daily domain. With the keywords start and end, and with literal dates, the offset is applied in the target domain, as given by the context argument when dates are returned. But with the keyword today, the offset is applied sometimes in the daily domain. It is applied in the daily domain only when the target domain resolution is finer than daily. This is for example useful when getting the last n days of a series with second resolution. In all other cases, the offset is applied in the target domain.
It is possible to use incomplete dates like a year without month and day, and they will be completed in the standard fashion, but offsets are only valid with complete daily dates.
A new day expression has no default value. Trying to resolve a new day expression which was never set is a bug and throws an {@link IllegalStateException}. @author Jean-Paul Vetterli

  public AccessMethodsForNumber() {
  }


  @Override
  public Range getRange(Series<Double> series) throws T2DBException {
    Range range = null;
    try {
      check(Permission.READ, series);
      Surrogate s = series.getSurrogate();
      BasicDBObject obj = (BasicDBObject) getObject(s, false);
      if (obj != null) {
        long first = obj.getLong(MongoDatabase.FLD_SER_FIRST);
        long last = obj.getLong(MongoDatabase.FLD_SER_LAST);
        range = new Range(series.getTimeDomain(), first, last);
      }
    } catch (Exception e) {
      throw T2DBMsg.exception(e, E.E50122, series.getName(true));
    }
    if (range == null)
      range = new Range(series.getTimeDomain());
    return range;
  }

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    return count;
  }
  
  private <T>void update(Series<T> series, TimeAddressable<Double> values) throws T2DBException {
    com.mongodb.DBObject operation = null;
    Range range = values.getRange();
    Map<String, Double> data = new HashMap<String, Double>();
    for (Observation<Double> obs : values) {
      data.put(Long.toString(obs.getIndex()), obs.getValue());
    }
    operation = operation(Operator.SET, 
        MongoDatabase.FLD_SER_FIRST, range.getFirstIndex(),
        MongoDatabase.FLD_SER_LAST, range.getLastIndex(),
        MongoDatabase.FLD_SER_VALUES, data);
    
    Surrogate s = series.getSurrogate();
    getMongoDB(s).getSeries().update(asQuery(s.getId()), operation);
  }

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      if (DUMP)
        System.out.println(t.getTimeDomain() + " " + s.getRange());
      assertEquals(9, s.getRange().getSize());
      if (DUMP)
        System.out.println(s.getValues(null));
      boolean done = s.setRange(new Range(t.getTimeDomain(), "2011-03-12", "2011-03-17", Adjustment.NONE));
      if (DUMP)
        System.out.println(s.getValues(null));
      assertFalse(done);
      done = s.setRange(new Range(t.getTimeDomain(), "2011-03-12", "2011-03-16", Adjustment.NONE));
      s.applyUpdates();
      if (DUMP)
        System.out.println(s.getValues(null));
      assertEquals(3, s.getRange().getSize());
      done = s.setRange(null);

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  }


  public void testEmptyRange() {
    try {
      UpdatableSeries<Double> s = db.getUpdatableSeries(SERIES, true);
      assertEquals(new Range(s.getTimeDomain()), s.getRange());
    } catch (Exception e) {
      fail(e.toString());
    }
  }

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  public void testSubRangeHasNoMissingValuesAtTheBoundaries() {
    try {
      Series<Double> s = makeSeries(makeTimeSeries());
      TimeDomain dom = s.getTimeDomain();
      TimeAddressable<Double> ts = s.getValues(new Range(dom, "2011-05-15", "2011-07-15", Adjustment.NONE));
      assertEquals(new Range(dom, "2011-06-01", "2011-07-01", Adjustment.NONE), ts.getRange());
    } catch (Exception e) {
      fail(e.toString());
    }
  }

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  public void testGetLastValue_1() {
    try {
      Series<Double> s = makeSeries(makeTimeSeries());
      TimeDomain dom = s.getTimeDomain();
      Range range = new Range(dom.time("2011-05-15"), dom.time("2011-07-15"));
      TimeAddressable<Double> ts = s.getValues(range);
      Observation<Double> obs = ts.getLast(dom.time("2011-06-01"));
      assertEquals("2011-06-01", obs.getTime().toString());
    } catch (Exception e) {
      fail(e.toString());

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  public void testGetLastValue_3() {
    try {
      Series<Double> s = makeSeries(makeTimeSeries());
      TimeDomain dom = s.getTimeDomain();
      Range range = new Range(dom.time("2011-05-15"), dom.time("2011-07-15"));
      TimeAddressable<Double> ts = s.getValues(range);
      Observation<Double> obs = ts.getLast(dom.time("2011-05-31"));
      assertNull(obs);
    } catch (Exception e) {
      fail(e.toString());

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  public void testMoreSeries() {
    try {
      UpdatableSeries<Double> s = makeSeries(makeTimeSeries2()).edit();
      TimeAddressable<Double> ts = s.getValues(null);
      Range range = new Range(s.getTimeDomain(), "2011-05-01", "2011-07-03", Adjustment.NONE);
      assertEquals(64, range.getSize());
      assertEquals(range, ts.getRange());
      assertEquals(range, s.getRange());
    } catch (Exception e) {
      fail(e.toString());
    }

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   * Reduce range with setRange().
   */
  public void testGetSeries04() {
    try {
      UpdatableSeries<Double> s = db.getSeries(SERIES, true).typeCheck(Double.class).edit();
      s.setRange(new Range(Day.DOMAIN.time("2011-05-02"), Day.DOMAIN.time("2011-06-30")));
      assertEquals("[2011-05-02, 2011-06-30]", s.getRange().toString());
    } catch (Exception e) {
      fail(e.toString());
    }
  }

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      if (DUMP)
        System.out.println(t.getTimeDomain() + " " + s.getRange());
      assertEquals(9, s.getRange().getSize());
      if (DUMP)
        System.out.println(s.getValues(null));
      boolean done = s.setRange(new Range(t.getTimeDomain(), "2011-03-12", "2011-03-17", Adjustment.NONE));
      if (DUMP)
        System.out.println(s.getValues(null));
      assertFalse(done);
      done = s.setRange(new Range(t.getTimeDomain(), "2011-03-12", "2011-03-16", Adjustment.NONE));
      s.applyUpdates();
      if (DUMP)
        System.out.println(s.getValues(null));
      assertEquals(3, s.getRange().getSize());
      done = s.setRange(null);

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Related Classes of ch.agent.t2.timeutil.DayExpression

ch.agent.crnickl.impl.ChronicleUpdatePolicyImpl

ch.agent.crnickl.impl.SeriesImpl

ch.agent.crnickl.impl.UpdatableSeriesImpl

ch.agent.crnickl.impl.ValueTypeImpl$DateScanner

ch.agent.crnickl.impl.ValueTypeImpl$DateTimeScanner

ch.agent.crnickl.jdbc.AccessMethodsForNumber

ch.agent.crnickl.junit.T040_SeriesTest

ch.agent.crnickl.junit.T041_UpdatableSeriesTest

ch.agent.crnickl.junit.T042_SeriesValuesTest

ch.agent.crnickl.mongodb.AccessMethodsForNumber

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