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Column Count Analyzer and Check #555
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import com.amazon.deequ.metrics.Entity | ||
import org.apache.spark.sql.DataFrame | ||
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case class ColumnCount(where: Option[String] = None) extends Analyzer[NumMatches, DoubleMetric] { |
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Can we remove where
? Or is that a requirement from Analyzer
?
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removed
if (state.isDefined) { | ||
Analyzers.metricFromValue(state.get.metricValue(), name, instance, entity) | ||
} else { | ||
Analyzers.metricFromEmpty(this, name, instance, entity) | ||
} |
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How about:
val metricValue = if(state.isDefined) state.get.metricValue() else this
Analyzers.metricFromEmpty(metricValue, name, instance, entity)
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it's Analyzers.metricFromValue
if defined and Analyzers.metricFromEmpty
otherwise so this won't work. I'll do a map though.
@@ -26,6 +26,17 @@ import scala.util.Failure | |||
import scala.util.Success | |||
import scala.util.Try | |||
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case class CustomSqlState(stateOrError: Either[Double, String]) extends DoubleValuedState[CustomSqlState] { |
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Either is right biased in Scala, which means the right sided value is what you would operate on when doing map
or flatMap
. In the case of storing exceptions or error messages, usually they are stored as the left sided value of the Either.
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I'm just moving this from Size.scala to its own class, I can address that in a different PR
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LGTM
* Fix flaky KLL test * Move CustomSql state to CustomSql analyzer * Implement new Analyzer to count columns * Improve documentation, remove unused parameter, replace if/else with map --------- Co-authored-by: Yannis Mentekidis <mentekid@amazon.com>
* Fix flaky KLL test * Move CustomSql state to CustomSql analyzer * Implement new Analyzer to count columns * Improve documentation, remove unused parameter, replace if/else with map --------- Co-authored-by: Yannis Mentekidis <mentekid@amazon.com>
* Fix flaky KLL test * Move CustomSql state to CustomSql analyzer * Implement new Analyzer to count columns * Improve documentation, remove unused parameter, replace if/else with map --------- Co-authored-by: Yannis Mentekidis <mentekid@amazon.com>
* Fix flaky KLL test * Move CustomSql state to CustomSql analyzer * Implement new Analyzer to count columns * Improve documentation, remove unused parameter, replace if/else with map --------- Co-authored-by: Yannis Mentekidis <mentekid@amazon.com>
* Fix flaky KLL test * Move CustomSql state to CustomSql analyzer * Implement new Analyzer to count columns * Improve documentation, remove unused parameter, replace if/else with map --------- Co-authored-by: Yannis Mentekidis <mentekid@amazon.com>
* Fix flaky KLL test * Move CustomSql state to CustomSql analyzer * Implement new Analyzer to count columns * Improve documentation, remove unused parameter, replace if/else with map --------- Co-authored-by: Yannis Mentekidis <mentekid@amazon.com>
* Fix flaky KLL test * Move CustomSql state to CustomSql analyzer * Implement new Analyzer to count columns * Improve documentation, remove unused parameter, replace if/else with map --------- Co-authored-by: Yannis Mentekidis <mentekid@amazon.com>
* Fix flaky KLL test * Move CustomSql state to CustomSql analyzer * Implement new Analyzer to count columns * Improve documentation, remove unused parameter, replace if/else with map --------- Co-authored-by: Yannis Mentekidis <mentekid@amazon.com>
Issue #, if available:
Description of changes:
This adds a dataset-scope analyzer that counts the number of columns in a dataset, and uses the analyzer in a Deequ Check
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.