public QaRowCount(
[Doc(nameof(DocStrings.QaRowCount_table))][NotNull] ITable table,
[Doc(nameof(DocStrings.QaRowCount_referenceTables))][NotNull]
IList <ITable> referenceTables,
[Doc(nameof(DocStrings.QaRowCount_minimumValueOffset))][CanBeNull]
string minimumValueOffset,
[Doc(nameof(DocStrings.QaRowCount_maximumValueOffset))][CanBeNull]
string maximumValueOffset)
: base(Union(new[] { table }, referenceTables))
{
Assert.ArgumentNotNull(table, nameof(table));
Assert.ArgumentNotNull(referenceTables, nameof(referenceTables));
_table = table;
_referenceTables = new List <ITable>(referenceTables);
CultureInfo formatProvider = CultureInfo.InvariantCulture;
_minimumValueOffset = OffsetSpecification.Parse(minimumValueOffset, formatProvider);
_maximumValueOffset = OffsetSpecification.Parse(maximumValueOffset, formatProvider);
Assert.ArgumentCondition(
_minimumValueOffset != null || _maximumValueOffset != null,
"At least one offset must be specified");
}
private int ReportErrors(int rowCount,
int referenceRowCount,
[CanBeNull] OffsetSpecification minimumValueOffset,
[CanBeNull] OffsetSpecification maximumValueOffset)
{
if (minimumValueOffset != null)
{
var minimumRowCount =
(int)Math.Ceiling(minimumValueOffset.ApplyTo(referenceRowCount));
if (rowCount < minimumRowCount)
{
string description = string.Format(
"Row count is less than minimum value: {0:N0} < {1:N0} (reference row count: {2:N0})",
rowCount, minimumRowCount, referenceRowCount);
return(ReportError(description, _table, Codes[Code.TooFewRows], null));
}
}
if (maximumValueOffset != null)
{
var maximumRowCount =
(int)Math.Floor(maximumValueOffset.ApplyTo(referenceRowCount));
if (rowCount > maximumRowCount)
{
string description = string.Format(
"Row count is greater than maximum value: {0:N0} > {1:N0} (reference row count: {2:N0})",
rowCount, maximumRowCount, referenceRowCount);
return(ReportError(description, _table, Codes[Code.TooManyRows], null));
}
}
return(NoError);
}
