/**
* Adds the given projection.
*
* @param projection the projection to add
* @return this
*/
public IExitOperationsCollector AddProjection(IProjection projection)
{
if (projection.GetType().IsAssignableFrom(distinct.GetType()))
{
this.distinct = (Distinct)projection;
//TODO: Distinct doesn't work yet
log.Error("Distinct is not ready yet");
throw new NotSupportedException();
}
if (projection.GetType().IsAssignableFrom(rowCountProjection.GetType()))
{
rowCountProjection = (RowCountProjection)projection;
}
if (projection.GetType().IsAssignableFrom(aggregateProjection.GetType()))
{
if (projection.ToString().ToLower().StartsWith("avg"))
{
this.avgProjection = (AggregateProjection)projection;
}
else
{
this.aggregateProjection = (AggregateProjection)projection;
}
}
else
{
log.Error("Adding an unsupported Projection: " + projection.GetType().Name);
throw new NotSupportedException();
}
return(this);
}
/**
* Adds the given projection.
*
* @param projection the projection to add
* @return this
*/
public IExitOperationsCollector AddProjection(IProjection projection)
{
if (projection.GetType().IsAssignableFrom(distinct.GetType()))
{
this.distinct = (Distinct) projection;
//TODO: Distinct doesn't work yet
log.Error("Distinct is not ready yet");
throw new NotSupportedException();
}
if (projection.GetType().IsAssignableFrom(rowCountProjection.GetType()))
{
rowCountProjection = (RowCountProjection) projection;
}
if (projection.GetType().IsAssignableFrom(aggregateProjection.GetType()))
{
if (projection.ToString().ToLower().StartsWith("avg"))
{
this.avgProjection = (AggregateProjection)projection;
}
else
{
this.aggregateProjection = (AggregateProjection)projection;
}
}
else
{
log.Error("Adding an unsupported Projection: " + projection.GetType().Name);
throw new NotSupportedException();
}
return this;
}
/// <summary>
/// Append a projection response to the command event stream
/// </summary>
/// <param name="domainName"></param>
/// <param name="entityTypeName"></param>
/// <param name="instanceKey"></param>
/// <param name="projectionTypeName"></param>
/// <param name="asOfDate"></param>
/// <param name="correlationIdentifier"></param>
/// <param name="asOfSequenceNumber"></param>
/// <param name="projectionResult"></param>
/// <returns></returns>
public async Task PostProjectionResponse(string domainName,
string entityTypeName,
string instanceKey,
string projectionTypeName,
Nullable <DateTime> asOfDate,
string correlationIdentifier,
int asOfSequenceNumber,
IProjection projectionResult)
{
EventStream esCmd = new EventStream(new EventStreamAttribute(MakeDomainCommandName(DomainName),
CommandName,
UniqueIdentifier,
notificationDispatcherName: _commandDispatcherName),
context: _commandContext);
ProjectionValueReturned evRet = new ProjectionValueReturned()
{
ProjectionDomainName = domainName,
ProjectionEntityTypeName = entityTypeName,
ProjectionInstanceKey = instanceKey,
AsOfDate = asOfDate,
AsOfSequenceNumber = asOfSequenceNumber,
CorrelationIdentifier = correlationIdentifier,
ProjectionTypeName = projectionTypeName,
DateLogged = DateTime.UtcNow,
Value = projectionResult.ToString()
};
await esCmd.AppendEvent(evRet);
}
public AggregateExitOperation(IProjection projection)
{
string projectionAsString = projection.ToString();
int start = projectionAsString.IndexOf("(");
string aggregateName = projectionAsString.Substring(0, start);
start++;
int stop = projectionAsString.IndexOf(")");
_fieldName = projectionAsString.Substring(start, stop - start);
_aggregate = (SupportedAggregations) Enum.Parse(_aggregate.GetType(), aggregateName.ToUpper());
}
public AggregateExitOperation(IProjection projection)
{
string projectionAsString = projection.ToString();
int start = projectionAsString.IndexOf("(");
string aggregateName = projectionAsString.Substring(0, start);
start++;
int stop = projectionAsString.IndexOf(")");
_fieldName = projectionAsString.Substring(start, stop - start);
_aggregate = (SupportedAggregations)Enum.Parse(_aggregate.GetType(), aggregateName.ToUpper());
}
/// <summary>
/// Retreive the property name from a supplied PropertyProjection
/// Note: throws is the supplied IProjection is not a PropertyProjection
/// </summary>
public string AsProperty()
{
if (_property != null)
{
return(_property);
}
if (!(_projection is PropertyProjection))
{
throw new Exception("Cannot determine property for " + _projection.ToString());
}
return(((PropertyProjection)_projection).PropertyName);
}
public override string ToString()
{
return("distinct " + projection.ToString());
}
public override string ToString()
{
return((_projection != null ? _projection.ToString() : "ID") + " == " + value);
}
public override string ToString()
{
return((projection != null ? projection.ToString() : propertyName) + (ascending ? " asc" : " desc"));
}
public override string ToString()
{
return(projection.ToString());
}
public ICriteria SetProjection(IProjection projection)
{
if (projection is ProjectionList)
{
throw new NotSupportedException("Projection lists are not (yet) supported.");
}
var distinct = projection as Distinct;
if (distinct != null)
{
ApplyActionToShards(c => c.SetProjection(projection));
this.listExitOperationBuilder.Distinct = true;
return(this);
}
if (!projection.IsAggregate)
{
ApplyActionToShards(c => c.SetProjection(projection));
return(this);
}
string aggregationName = projection.ToString();
if (aggregationName.StartsWith("avg", StringComparison.OrdinalIgnoreCase))
{
var projectionList = Projections.ProjectionList()
.Add(projection)
.Add(Projections.RowCount());
ApplyActionToShards(c => c.SetProjection(projectionList));
this.listExitOperationBuilder.Aggregation =
c => AggregationUtil.Average(c, GetDoubleFieldSelector(0), GetInt32FieldSelector(1));
return(this);
}
if (aggregationName.StartsWith("sum", StringComparison.OrdinalIgnoreCase))
{
ApplyActionToShards(c => c.SetProjection(projection));
this.listExitOperationBuilder.Aggregation = ToSumFunc(projection);
return(this);
}
if (aggregationName.StartsWith("count", StringComparison.OrdinalIgnoreCase))
{
ApplyActionToShards(c => c.SetProjection(projection));
this.listExitOperationBuilder.Aggregation = ToSumFunc(projection);
return(this);
}
if (aggregationName.StartsWith("min", StringComparison.OrdinalIgnoreCase))
{
ApplyActionToShards(c => c.SetProjection(projection));
this.listExitOperationBuilder.Aggregation = AggregationUtil.Min;
return(this);
}
if (aggregationName.StartsWith("max", StringComparison.OrdinalIgnoreCase))
{
ApplyActionToShards(c => c.SetProjection(projection));
this.listExitOperationBuilder.Aggregation = AggregationUtil.Max;
return(this);
}
var message = string.Format(
CultureInfo.InvariantCulture,
"Aggregate projection '{0}' is currently not supported across shards.",
aggregationName);
Log.Error(message);
throw new NotSupportedException(message);
}
public override string ToString()
{
return(projection.ToString() + " as " + alias);
}
public override String ToString()
{
return("Cellular Automata evolved " + DiscreteTimer.Instance.GetTime() + " times, based on " + grid.ToString());
}
public override string ToString()
{
return(aggregate + "(" + (projection != null ? projection.ToString() : propertyName) + ')');
}
internal static object GetColumnNameAsSqlStringPart(IProjection projection, ICriteriaQuery criteriaQuery, ICriteria criteria)
{
var columnNames = GetColumnNamesAsSqlStringParts(projection, criteriaQuery, criteria);
if (columnNames.Length != 1)
{
throw new QueryException("property or projection does not map to a single column: " + (projection.ToString()));
}
return(columnNames[0]);
}
