public ExtractionTimeTimeCoverageAggregator(ICatalogue catalogue, IExtractableCohort cohort)
{
_catalogue = catalogue;
Buckets = new Dictionary <DateTime, ExtractionTimeTimeCoverageAggregatorBucket>();
if (!catalogue.TimeCoverage_ExtractionInformation_ID.HasValue)
{
return;
}
try
{
_expectedTimeFieldInOutputBuffer = catalogue.TimeCoverage_ExtractionInformation.GetRuntimeName();
}
catch (Exception e)
{
throw new Exception("Could not resolve TimeCoverage_ExtractionInformation for Catalogue '" + catalogue + "',time coverage ExtractionInformationID was:" + catalogue.TimeCoverage_ExtractionInformation_ID, e);
}
_expectedExtractionIdentifierInOutputBuffer = cohort.GetQuerySyntaxHelper().GetRuntimeName(cohort.GetReleaseIdentifier());
}
public ReleaseIdentifierSubstitution(MemoryRepository repo, IColumn extractionIdentifierToSubFor, IExtractableCohort extractableCohort, bool isPartOfMultiCHISubstitution, IQuerySyntaxHelper querySyntaxHelper) : base(repo)
{
if (!extractionIdentifierToSubFor.IsExtractionIdentifier)
{
throw new Exception("Column " + extractionIdentifierToSubFor + " is not marked IsExtractionIdentifier so cannot be substituted for a ReleaseIdentifier");
}
OriginalDatasetColumn = extractionIdentifierToSubFor;
this._querySyntaxHelper = querySyntaxHelper;
if (OriginalDatasetColumn.ColumnInfo == null)
{
throw new Exception("The column " + OriginalDatasetColumn.GetRuntimeName() + " references a ColumnInfo that has been deleted");
}
var syntaxHelper = extractableCohort.GetQuerySyntaxHelper();
//the externally referenced Cohort table
var externalCohortTable = extractableCohort.ExternalCohortTable;
var privateIdentifierFieldDiscovered = externalCohortTable.Discover().ExpectTable(externalCohortTable.TableName).DiscoverColumn(externalCohortTable.PrivateIdentifierField);
string collateStatement = "";
//the release identifier join might require collation
//if the private has a collation
if (!string.IsNullOrWhiteSpace(privateIdentifierFieldDiscovered.Collation))
{
var cohortCollation = privateIdentifierFieldDiscovered.Collation;
var otherTableCollation = OriginalDatasetColumn.ColumnInfo.Collation;
//only collate if the server types match and if the collations differ
if (privateIdentifierFieldDiscovered.Table.Database.Server.DatabaseType == OriginalDatasetColumn.ColumnInfo.TableInfo.DatabaseType)
{
if (!string.IsNullOrWhiteSpace(otherTableCollation) && !string.Equals(cohortCollation, otherTableCollation))
{
collateStatement = " collate " + cohortCollation;
}
}
}
if (!isPartOfMultiCHISubstitution)
{
SelectSQL = extractableCohort.GetReleaseIdentifier();
Alias = syntaxHelper.GetRuntimeName(SelectSQL);
}
else
{
SelectSQL = "(SELECT DISTINCT " +
extractableCohort.GetReleaseIdentifier() +
" FROM " +
externalCohortTable.TableName + " WHERE " + extractableCohort.WhereSQL() + " AND " + externalCohortTable.PrivateIdentifierField + "=" + OriginalDatasetColumn.SelectSQL + collateStatement + ")";
if (!string.IsNullOrWhiteSpace(OriginalDatasetColumn.Alias))
{
string toReplace = extractableCohort.GetPrivateIdentifier(true);
string toReplaceWith = extractableCohort.GetReleaseIdentifier(true);
//take the same name as the underlying column
Alias = OriginalDatasetColumn.Alias;
//but replace all instances of CHI with PROCHI (or Barcode, or whatever)
if (!Alias.Contains(toReplace) || Regex.Matches(Alias, Regex.Escape(toReplace)).Count > 1)
{
throw new Exception("Expected OriginalDatasetColumn " + OriginalDatasetColumn.Alias + " to have the text \"" + toReplace + "\" appearing once (and only once in it's name)," +
"we planned to replace that text with:" + toReplaceWith);
}
Alias = Alias.Replace(toReplace, toReplaceWith);
}
else
{
throw new Exception("In cases where you have multiple columns marked IsExtractionIdentifier, they must all have Aliases, the column " + OriginalDatasetColumn.SelectSQL + " does not have one");
}
}
JoinSQL = OriginalDatasetColumn.SelectSQL + "=" + externalCohortTable.PrivateIdentifierField + collateStatement;
}
