// Look up a schema based on site, histology and an optional discriminator.
// @param lookup schema lookup input
// @return a list of StagingSchemaInfo objects
public List <StagingSchema> lookupSchema(SchemaLookup lookup)
{
List <StagingSchema> lstRetval = null;
// If doing a more broad lookup without giving both site and histology, do not use the cache. I don't want to cache
// since the results could include all the data
if (lookup.getSite() == null || lookup.getHistology() == null)
{
return(getSchemas(lookup));
}
// Dictionary for cache.
String sIDString = lookup.GetHashString();
if (!mLookupMemoryDict.TryGetValue(sIDString, out lstRetval))
{
if (miLookupMemoryDictCount > NUM_ITEMS_IN_CACHE_CAUSES_TRIM)
{
mLookupMemoryDict.Clear();
Interlocked.Exchange(ref miLookupMemoryDictCount, 0);
}
lstRetval = getSchemas(lookup);
if (mLookupMemoryDict.TryAdd(sIDString, lstRetval))
{
Interlocked.Increment(ref miLookupMemoryDictCount);
}
}
return(lstRetval);
}
// Look up a schema based on site, histology and an optional discriminator.
// @param lookup schema lookup input
// @return a list of StagingSchemaInfo objects
private List <StagingSchema> getSchemas(SchemaLookup lookup)
{
List <StagingSchema> matchedSchemas = new List <StagingSchema>(5);
String site = lookup.getInput(StagingData.PRIMARY_SITE_KEY);
String histology = lookup.getInput(StagingData.HISTOLOGY_KEY);
bool hasDiscriminator = lookup.hasDiscriminator();
// site or histology must be supplied and they must be valid; I am assuming that all algorithms must have tables that validate
// both site and histology
if ((site != null && !isValidSite(site)) || (histology != null && !isValidHistology(histology)))
{
return(matchedSchemas);
}
// searching on a discriminator is only supported if also searching on site and histology; if ssf25 supplied without either
// of those fields, return no results
if (hasDiscriminator && (site == null || (site.Length == 0) || histology == null || (histology.Length == 0)))
{
return(matchedSchemas);
}
// site or histology must be supplied
if (site != null || histology != null)
{
HashSet <String> lstSchemaIds = getSchemaIds();
// loop over selection table and match using only the supplied keys
foreach (String schemaId in lstSchemaIds)
{
StagingSchema schema = (StagingSchema)(getDefinition(schemaId));
if (schema.getSchemaSelectionTable() != null)
{
StagingTable table = (StagingTable)(getTable(schema.getSchemaSelectionTable()));
if (table != null && DecisionEngineFuncs.matchTable(table, lookup.getInputs(), lookup.getKeys()) != null)
{
matchedSchemas.Add(schema);
}
}
}
}
return(matchedSchemas);
}
// Look up a schema based on site, histology and an optional discriminator.
// @param lookup schema lookup input
// @return a list of StagingSchema objects
public List <StagingSchema> lookupSchema(SchemaLookup lookup)
{
return(_provider.lookupSchema(lookup));
}