The InfluxDBResultMapper is able to handle results with a different time precision

[bednar]

The InfluxDBResultMapper is not able map QueryResults with different precision than Milliseconds.

@Test
void testToPOJO_Precision() {

	String database = "precision_database";
	influxDB.deleteDatabase(database);
	influxDB.createDatabase(database);

	// write in Nanoseconds
	influxDB.write(database, "autogen", InfluxDB.ConsistencyLevel.ONE,
				"h2o_feet,location=coyote_creek level\\ description=\"below 3 feet\",water_level=2.927 1000000000");

	// query in Seconds
	QueryResult queryResults = influxDB.query(new Query("select * from h2o_feet", database), TimeUnit.SECONDS);

	// Mapper expected time in Milliseconds
	List<H2OFeetMeasurement> measurements = new InfluxDBResultMapper().toPOJO(queryResults, H2OFeetMeasurement.class);

	Assertions.assertEquals(1, measurements.size());
	Assertions.assertEquals("coyote_creek", measurements.get(0).location);
	Assertions.assertEquals(2.927D, (double) measurements.get(0).level);
	Assertions.assertEquals("below 3 feet", measurements.get(0).description);
	Assertions.assertEquals(Instant.ofEpochSecond(1), measurements.get(0).time);
}

@Measurement(name = "h2o_feet", timeUnit = TimeUnit.NANOSECONDS)
public static class H2OFeetMeasurement {

	@Column(name = "location", tag = true)
	private String location;

	@Column(name = "water_level")
	private Double level;

	@Column(name = "level description")
	private String description;

	@Column(name = "time")
	private Instant time;
}

[codecov-io]

Codecov Report

Merging #501 into master will decrease coverage by 0.08%.
The diff coverage is 92.3%.

@@             Coverage Diff              @@
##             master     #501      +/-   ##
============================================
- Coverage     87.53%   87.45%   -0.09%     
- Complexity      365      369       +4     
============================================
  Files            25       25              
  Lines          1500     1506       +6     
  Branches        167      168       +1     
============================================
+ Hits           1313     1317       +4     
- Misses          120      123       +3     
+ Partials         67       66       -1

Impacted Files	Coverage Δ	Complexity Δ
...n/java/org/influxdb/impl/InfluxDBResultMapper.java	88.23% <92.3%> (+0.54%)	52 <5> (+5)	⬆️
src/main/java/org/influxdb/InfluxDBException.java	87.27% <0%> (-3.64%)	11% <0%> (-1%)

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