protected virtual IEnumerable <Field> GetFields(FieldTarget target)
{
switch (target)
{
case FieldTarget.KeyReference:
return(LookupTableBuilder.Schema.Keys.Select(fp =>
fp.Value.Affix(PrefixName).Affix(ReferenceNameFormatter).AsNullableReference(Key ? FieldType.Key : FieldType.Dimension).ChangeSort(SortOrder.Unspecified)));
case FieldTarget.Inline:
var fields = FieldMappers.SelectMany(mapper => mapper.Fields.Select(field =>
field.Affix(PrefixName).Affix(ReferenceNameFormatter))).ToArray();
if (!Key)
{
foreach (var field in fields.Where(f => f.FieldType == FieldType.Key))
{
field.FieldType = FieldType.Dimension;
}
}
return(fields);
case FieldTarget.Table:
return(FieldMappers.SelectMany(mapper => mapper.Fields));
}
throw new ArgumentOutOfRangeException("target");
}
public TableDataBuilder(string name, IEnumerable <IFieldMapper> fieldMappers)
: base(new TableDataSchema(name))
{
FieldMappers = fieldMappers.ToArray();
_fieldList.AddRange(FieldMappers.SelectMany(mapper => mapper.Fields));
UpdateSchema();
}
public TimeDimension(string fieldName, Func <ProcessingScope, DateTime?> selector, string tableName = null, bool inlineFields = false, bool useTimeForKey = false, TimeDetailLevel detailLevel = TimeDetailLevel.Minute, CultureInfo cultureInfo = null, bool key = false)
: base(fieldName, tableName ?? fieldName, Enumerable.Empty <IFieldMapper>())
{
_selector = selector;
_useTimeForKey = useTimeForKey;
_detailLevel = detailLevel;
_cultureInfo = cultureInfo ?? CultureInfo.CurrentCulture;
_mapper = new TimeFields(this);
Key = key;
InlineFields = inlineFields;
FieldMappers.Add(_mapper);
}
public DateDimension(string fieldName, Func <ProcessingScope, DateTime?> selector, string tableName = null, bool inlineFields = false, bool useDateForKey = true, DateDetailLevel detailLevel = DateDetailLevel.Date, CultureInfo cultureInfo = null, SortOrder sort = SortOrder.Ascending, bool key = false)
: base(fieldName, tableName ?? fieldName, Enumerable.Empty <IFieldMapper>())
{
_selector = selector;
_useDateForKey = useDateForKey;
_detailLevel = detailLevel;
_cultureInfo = cultureInfo ?? CultureInfo.CurrentCulture;
_sort = sort;
Key = key;
InlineFields = inlineFields;
_mapper = new DateFields(this);
FieldMappers.Add(_mapper);
}
protected void UpdateSchema()
{
//Add fields to schema order by field type, then source index
Schema.Fields =
_fieldList.AsIndexed()
.OrderBy(f => f.Value.FieldType == FieldType.Key ? 0 : f.Value.FieldType == FieldType.Fact ? 2 : 1)
.ThenBy(f => f.Index)
.Select(f => f.Value)
.ToArray();
Schema.CalculatedFields =
FieldMappers.OfType <ICalculatedFieldContainer>().SelectMany(c => c.CalculatedFields).ToList();
Iterator = new FieldMapperIterator(FieldMappers, Schema.Fields);
_rowComparer = new RowComparer(Schema);
RowMap = new Dictionary <object[], object[]>(_rowComparer);
HashKey = _hashKeyField != null?Array.IndexOf(Schema.Fields, _hashKeyField) : (int?)null;
if (HashKey.HasValue)
{
HashIndices = Schema.Keys.Concat(Schema.Dimensions).Where(fp => fp.Index != HashKey).Select(fp => fp.Index).ToArray();
}
_parentReferenceIndices.Clear();
if (_parentReferences.Count > 0)
{
foreach (var field in Schema.Fields.AsIndexed())
{
int parentIndex;
if (_parentReferences.TryGetValue(field.Value, out parentIndex))
{
_parentReferenceIndices.Add(new KeyValuePair <int, int>(parentIndex, field.Index));
}
}
}
_emptyRow =
Schema.Fields
.Select(
f => f.DefaultValue ?? (f.ValueType.IsValueType ? Activator.CreateInstance(f.ValueType) : null))
.ToArray();
}
