public ISummaryRepositoryItem ProduceFor(ServerModeSummaryDescriptor summaryDescriptor)
{
var summaryType = summaryDescriptor.SummaryType;
switch (summaryType)
{
case Aggregate.Avg:
return(ProduceAVGItem(summaryDescriptor));
case Aggregate.Count:
return(ProduceSimpleItem(summaryDescriptor));
case Aggregate.Min:
return(ProduceSimpleItem(summaryDescriptor));
case Aggregate.Max:
return(ProduceSimpleItem(summaryDescriptor));
case Aggregate.Sum:
return(ProduceSimpleItem(summaryDescriptor));
default:
throw new NotSupportedException("Не поддерживаем SummaryType отличный от 'Avg', 'Count', 'Min', 'Max', 'Sum'. Переданное значение SummaryType: '{0}'".FillWith(summaryType));
}
}
public SummaryRepositoryItemsContext(ServerModeSummaryDescriptor itemsDescriptor)
{
ItemsDescriptor = itemsDescriptor;
ItemsType = CalculateItemsType(ItemsDescriptor);
Key = ItemsDescriptor.CalculateKey();
}
public SummaryRepositoryItemsContext(ServerModeSummaryDescriptor itemsDescriptor)
{
ItemsDescriptor = itemsDescriptor;
ItemsType = CalculateItemsType(ItemsDescriptor);
Key = ItemsDescriptor.CalculateKey();
}
private SimpleSummaryRepositoryItem ProduceSimpleItem(ServerModeSummaryDescriptor sourceDescriptor)
{
var itemValue = DataSourceEnumerator.FetchNext();
return(new SimpleSummaryRepositoryItem(sourceDescriptor)
{
Value = itemValue
});
}
private AVGSummaryRepositoryItem ProduceAVGItem(ServerModeSummaryDescriptor sourceDescriptor)
{
var itemSum = DataSourceEnumerator.FetchNext().As<decimal>();
var itemCount = DataSourceEnumerator.FetchNext().As<int>();
var itemValue = itemSum / itemCount;
return new AVGSummaryRepositoryItem(sourceDescriptor)
{
Sum = itemSum,
Count = itemCount,
Value = itemValue
};
}
private AVGSummaryRepositoryItem ProduceAVGItem(ServerModeSummaryDescriptor sourceDescriptor)
{
var itemSum = DataSourceEnumerator.FetchNext().As <decimal>();
var itemCount = DataSourceEnumerator.FetchNext().As <int>();
var itemValue = itemSum / itemCount;
return(new AVGSummaryRepositoryItem(sourceDescriptor)
{
Sum = itemSum,
Count = itemCount,
Value = itemValue
});
}
private static Type CalculateItemsType(ServerModeSummaryDescriptor summaryDescriptor)
{
var summaryType = summaryDescriptor.SummaryType;
switch (summaryType)
{
case Aggregate.Avg:
return(typeof(AVGSummaryRepositoryItem));
case Aggregate.Count:
case Aggregate.Min:
case Aggregate.Max:
case Aggregate.Sum:
return(typeof(SimpleSummaryRepositoryItem));
default:
throw new NotSupportedException("Не поддерживаем SummaryType отличный от 'Avg', 'Count', 'Min', 'Max', 'Sum'. Переданное значение SummaryType: '{0}'".FillWith(summaryType));
}
}
public ISummaryRepositoryItem ProduceFor(ServerModeSummaryDescriptor summaryDescriptor)
{
var summaryType = summaryDescriptor.SummaryType;
switch (summaryType)
{
case Aggregate.Avg:
return ProduceAVGItem(summaryDescriptor);
case Aggregate.Count:
return ProduceSimpleItem(summaryDescriptor);
case Aggregate.Min:
return ProduceSimpleItem(summaryDescriptor);
case Aggregate.Max:
return ProduceSimpleItem(summaryDescriptor);
case Aggregate.Sum:
return ProduceSimpleItem(summaryDescriptor);
default:
throw new NotSupportedException("Не поддерживаем SummaryType отличный от 'Avg', 'Count', 'Min', 'Max', 'Sum'. Переданное значение SummaryType: '{0}'".FillWith(summaryType));
}
}
public ISummaryRepositoryItem Produce(ServerModeSummaryDescriptor summaryDescriptor)
{
return ProduceFor(summaryDescriptor);
}
public ISummaryRepositoryItem Item(ServerModeSummaryDescriptor summaryDescriptor)
{
return ItemsDictionary[summaryDescriptor.CalculateKey()];
}
protected BaseSummaryRepositoryItem(ServerModeSummaryDescriptor sourceDescriptor)
{
SourceDescriptor = sourceDescriptor;
Key = SourceDescriptor.CalculateKey();
}
private static Type CalculateItemsType(ServerModeSummaryDescriptor summaryDescriptor)
{
var summaryType = summaryDescriptor.SummaryType;
switch (summaryType)
{
case Aggregate.Avg:
return typeof(AVGSummaryRepositoryItem);
case Aggregate.Count:
case Aggregate.Min:
case Aggregate.Max:
case Aggregate.Sum:
return typeof(SimpleSummaryRepositoryItem);
default:
throw new NotSupportedException("Не поддерживаем SummaryType отличный от 'Avg', 'Count', 'Min', 'Max', 'Sum'. Переданное значение SummaryType: '{0}'".FillWith(summaryType));
}
}
public static string CalculateKey(this ServerModeSummaryDescriptor source)
{
return("|" + CalculateKeyPart(source.SummaryType) + "|" + CalculateKeyPart(source.SummaryExpression) + "|");
}
public ISummaryRepositoryItem Produce(ServerModeSummaryDescriptor summaryDescriptor)
{
return(ProduceFor(summaryDescriptor));
}
public object Value(ServerModeSummaryDescriptor summaryDescriptor)
{
return Item(summaryDescriptor).Value;
}
private SimpleSummaryRepositoryItem ProduceSimpleItem(ServerModeSummaryDescriptor sourceDescriptor)
{
var itemValue = DataSourceEnumerator.FetchNext();
return new SimpleSummaryRepositoryItem(sourceDescriptor)
{
Value = itemValue
};
}
public NHibernateSummaryProcessor <T> AddSummaryDesciptor(ServerModeSummaryDescriptor summaryDescriptor)
{
PermanentSummaryDescriptors.Add(summaryDescriptor);
return(this);
}
public bool Contains(ServerModeSummaryDescriptor summaryDescriptor)
{
return(ItemsDictionary.ContainsKey(summaryDescriptor.CalculateKey()));
}
public ISummaryRepositoryItem Item(ServerModeSummaryDescriptor summaryDescriptor)
{
return(ItemsDictionary[summaryDescriptor.CalculateKey()]);
}
public object Value(ServerModeSummaryDescriptor summaryDescriptor)
{
return(Item(summaryDescriptor).Value);
}
public SimpleSummaryRepositoryItem(ServerModeSummaryDescriptor sourceDescriptor)
: base(sourceDescriptor)
{
}
public AVGSummaryRepositoryItem(ServerModeSummaryDescriptor sourceDescriptor)
: base(sourceDescriptor)
{
}
protected BaseSummaryRepositoryItem(ServerModeSummaryDescriptor sourceDescriptor)
{
SourceDescriptor = sourceDescriptor;
Key = SourceDescriptor.CalculateKey();
}
public bool Contains(ServerModeSummaryDescriptor summaryDescriptor)
{
return ItemsDictionary.ContainsKey(summaryDescriptor.CalculateKey());
}
