/// <summary>
/// 'Flatten' a value (if it is an array or structure) into something that can be
/// stored in a flat database table.
/// </summary>
/// <param name="name">The column name.</param>
/// <param name="units">The units of the value.</param>
/// <param name="value">The value to store.</param>
/// <param name="row">Row to store value into to.</param>
private void FlattenValueIntoRow(string name, string units, object value, DataRow row)
{
if (value == null)
{
AddColumnToTable(row.Table, name);
}
else if (value.GetType() == typeof(DateTime) || value.GetType() == typeof(string) || !value.GetType().IsClass)
{
// Scalar
var newColumnName = AddColumnToTable(row.Table, name, value.GetType());
row[newColumnName] = value;
}
else if (value.GetType().GetInterface("IList") != null)
{
// List
IList array = value as IList;
for (int arrayIndex = 0; arrayIndex < array.Count; arrayIndex++)
{
string heading = name;
heading += "(" + (arrayIndex + 1).ToString() + ")";
object arrayElement = array[arrayIndex];
FlattenValueIntoRow(heading, units, arrayElement, row); // recursion }
}
}
else
{
// A struct or class
foreach (PropertyInfo property in ReflectionUtilities.GetPropertiesSorted(value.GetType(), BindingFlags.Instance | BindingFlags.Public))
{
object[] attrs = property.GetCustomAttributes(true);
string propUnits = null;
bool ignore = false;
foreach (object attr in attrs)
{
if (attr is XmlIgnoreAttribute)
{
ignore = true;
continue;
}
Core.UnitsAttribute unitsAttr = attr as Core.UnitsAttribute;
if (unitsAttr != null)
{
propUnits = unitsAttr.ToString();
}
}
if (ignore)
{
continue;
}
string heading = name + "." + property.Name;
object classElement = property.GetValue(value, null);
FlattenValueIntoRow(heading, propUnits, classElement, row); // recursion
}
}
}
/// <summary>
/// 'Flatten' a value (if it is an array or structure) into something that can be
/// stored in a flat database table.
/// </summary>
/// <param name="name"></param>
/// <param name="units"></param>
/// <param name="value"></param>
/// <param name="newColumnNames"></param>
/// <param name="newColumnUnits"></param>
/// <param name="newValues"></param>
private static void FlattenValue(string name, string units, object value,
List <string> newColumnNames, List <string> newColumnUnits, List <object> newValues)
{
if (value == null || value.GetType() == typeof(DateTime) || value.GetType() == typeof(string) || !value.GetType().IsClass)
{
// Scalar
newColumnNames.Add(name);
newColumnUnits.Add(units);
newValues.Add(value);
}
else if (value.GetType().IsArray)
{
// Array
Array array = value as Array;
for (int columnIndex = 0; columnIndex < array.Length; columnIndex++)
{
string heading = name;
heading += "(" + (columnIndex + 1).ToString() + ")";
object arrayElement = array.GetValue(columnIndex);
FlattenValue(heading, units, arrayElement,
newColumnNames, newColumnUnits, newValues); // recursion
}
}
else if (value.GetType().GetInterface("IList") != null)
{
// List
IList array = value as IList;
for (int columnIndex = 0; columnIndex < array.Count; columnIndex++)
{
string heading = name;
heading += "(" + (columnIndex + 1).ToString() + ")";
object arrayElement = array[columnIndex];
FlattenValue(heading, units, arrayElement,
newColumnNames, newColumnUnits, newValues); // recursion }
}
}
else
{
// A struct or class
foreach (PropertyInfo property in ReflectionUtilities.GetPropertiesSorted(value.GetType(), BindingFlags.Instance | BindingFlags.Public))
{
object[] attrs = property.GetCustomAttributes(true);
string propUnits = null;
bool ignore = false;
foreach (object attr in attrs)
{
if (attr is XmlIgnoreAttribute)
{
ignore = true;
continue;
}
Core.UnitsAttribute unitsAttr = attr as Core.UnitsAttribute;
if (unitsAttr != null)
{
propUnits = unitsAttr.ToString();
}
}
if (ignore)
{
continue;
}
string heading = name + "." + property.Name;
object classElement = property.GetValue(value, null);
FlattenValue(heading, propUnits, classElement,
newColumnNames, newColumnUnits, newValues); // recursion
}
}
}
/// <summary>
/// 'Flatten' a value (if it is an array or structure) into something that can be
/// stored in a flat database table.
/// </summary>
/// <param name="name">The column name.</param>
/// <param name="units">The units of the value.</param>
/// <param name="value">The value to store.</param>
/// <param name="row">Row to store value into to.</param>
private void FlattenValueIntoRow(string name, string units, object value, DataRow row)
{
if (value == null)
{
AddColumnToTable(row.Table, name);
}
else if (value.GetType() == typeof(DateTime) || value.GetType() == typeof(string) || !value.GetType().IsClass)
{
// Scalar
Type dataType = value.GetType();
if (dataType.IsEnum)
{
dataType = typeof(string);
}
var newColumnName = AddColumnToTable(row.Table, name, dataType);
row[newColumnName] = value;
}
else if (value.GetType().GetInterface("IList") != null)
{
// List
IList array = value as IList;
// Determine if there is an array specification e.g. (2) at the end of the heading
var regex = new Regex("(.+)\\(([0-9]+)\\)$");
var match = regex.Match(name);
for (int i = 0; i < array.Count; i++)
{
if (match.Success)
{
// Found an array specification e.g. col(1)
var heading = match.Groups[1].ToString();
var startIndex = Convert.ToInt32(match.Groups[2].ToString()) - 1;
heading = string.Format("{0}({1})", heading, startIndex + i + 1);
object arrayElement = array[i];
FlattenValueIntoRow(heading, units, arrayElement, row);
}
else
{
// Found no array specification - output whole array.
var heading = string.Format("{0}({1})", name, i + 1);
object arrayElement = array[i];
FlattenValueIntoRow(heading, units, arrayElement, row); // recursion
}
}
}
else
{
// A struct or class
foreach (PropertyInfo property in ReflectionUtilities.GetPropertiesSorted(value.GetType(), BindingFlags.Instance | BindingFlags.Public))
{
object[] attrs = property.GetCustomAttributes(true);
string propUnits = null;
bool ignore = false;
foreach (object attr in attrs)
{
if (attr is JsonIgnoreAttribute)
{
ignore = true;
continue;
}
Core.UnitsAttribute unitsAttr = attr as Core.UnitsAttribute;
if (unitsAttr != null)
{
propUnits = unitsAttr.ToString();
}
}
if (ignore)
{
continue;
}
string heading = name + "." + property.Name;
object classElement = property.GetValue(value, null);
FlattenValueIntoRow(heading, propUnits, classElement, row); // recursion
}
}
}
/// <summary>
/// 'Flatten' the object passed in, into a list of columns ready to be added
/// to a data table.
/// </summary>
/// <param name="name">Column name where the value came from.</param>
/// <param name="units">Units of measurement; null if not applicable</param>
/// <param name="value">The object to be analyzed and flattened</param>
/// <param name="rowIndex">The row index of the specified value.</param>
/// <param name="flattenedColumns">The returned flattened columns.</param>
/// <returns>The list of values that can be written to a data table</returns>
private static void FlattenValue(string name, string units, object value, int rowIndex, List <IReportColumn> flattenedColumns)
{
if (value == null || value.GetType() == typeof(DateTime) || value.GetType() == typeof(string) || !value.GetType().IsClass)
{
// Scalar
IReportColumn flattenedColumn = flattenedColumns.Find(col => col.Name == name);
if (flattenedColumn == null)
{
flattenedColumn = new ReportColumnWithValues(name, units);
InsertColumn(flattenedColumn, flattenedColumns);
}
// Ensure all columns have the correct number of values.
foreach (IReportColumn column in flattenedColumns)
{
if (column is ReportColumnConstantValue)
{
}
else
{
while (column.Values.Count <= rowIndex)
{
column.Values.Add(null);
}
}
}
flattenedColumn.Values[rowIndex] = value;
}
else if (value.GetType().IsArray)
{
// Array
Array array = value as Array;
for (int columnIndex = 0; columnIndex < array.Length; columnIndex++)
{
string heading = name;
heading += "(" + (columnIndex + 1).ToString() + ")";
object arrayElement = array.GetValue(columnIndex);
FlattenValue(heading, units, arrayElement, rowIndex, flattenedColumns); // recursion
}
}
else if (value.GetType().GetInterface("IList") != null)
{
// List
IList array = value as IList;
for (int columnIndex = 0; columnIndex < array.Count; columnIndex++)
{
string heading = name;
heading += "(" + (columnIndex + 1).ToString() + ")";
object arrayElement = array[columnIndex];
FlattenValue(heading, units, arrayElement, rowIndex, flattenedColumns); // recursion
}
}
else
{
// A struct or class
foreach (PropertyInfo property in ReflectionUtilities.GetPropertiesSorted(value.GetType(), BindingFlags.Instance | BindingFlags.Public))
{
object[] attrs = property.GetCustomAttributes(true);
string propUnits = null;
bool ignore = false;
foreach (object attr in attrs)
{
if (attr is XmlIgnoreAttribute)
{
ignore = true;
continue;
}
Core.UnitsAttribute unitsAttr = attr as Core.UnitsAttribute;
if (unitsAttr != null)
{
propUnits = unitsAttr.ToString();
}
}
if (ignore)
{
continue;
}
string heading = name + "." + property.Name;
object classElement = property.GetValue(value, null);
FlattenValue(heading, propUnits, classElement, rowIndex, flattenedColumns);
}
}
}
