/// <summary>
/// Converts a given element to a json string, dependent on the column definition as given by the
/// ColumnCreationResult
/// </summary>
/// <param name="element"></param>
/// <param name="creatorResult"></param>
/// <returns></returns>
private Dictionary<string, object> ConvertToJson(IObject element, ColumnCreationResult creatorResult)
{
var result = new Dictionary<string, object>();
foreach (var property in creatorResult.Properties
.Where(property => element.isSet(property)))
{
var propertyAsString = ColumnCreator.ConvertPropertyToColumnName(property);
var propertyValue = element.get(property);
if (creatorResult.ColumnsOnProperty[property].isEnumeration)
{
if (propertyValue is IEnumerable && !(propertyValue is string))
{
var list = new List<object>();
foreach (var listValue in (propertyValue as IEnumerable))
{
var asElement = listValue as IElement;
string url;
if (asElement != null)
{
url = asElement.GetUri();
}
else
{
url = null;
}
list.Add(new
{
u = url,
v = listValue == null ? "null" : _resolution.GetName(listValue)
});
}
result[propertyAsString] = list;
}
else
{
result[propertyAsString] = propertyValue == null ? "null" : _resolution.GetName(propertyValue);
}
}
else
{
result[propertyAsString] = propertyValue == null ? "null" : _resolution.GetName(propertyValue);
}
}
return result;
}
public ColumnCreationResult FindColumnsForItem(object item)
{
var result = new ColumnCreationResult();
EvaluateColumnsForItem(result, item);
return result;
}
public ColumnCreationResult FindColumnsForTable(IReflectiveSequence elements)
{
var result = new ColumnCreationResult();
foreach (var item in elements)
{
EvaluateColumnsForItem(result, item);
}
return result;
}
private void EvaluateColumnsForItem(ColumnCreationResult result, object item)
{
// First phase: Get the properties by using the metaclass
var asElement = item as IElement;
var metaClass = asElement?.metaclass;
if (metaClass != null)
{
var dataLayer = _dataLayerLogic?.GetDataLayerOfObject(metaClass);
var metaLayer = _dataLayerLogic?.GetMetaLayerFor(dataLayer);
var uml = _dataLayerLogic?.Get<_UML>(metaLayer);
if (uml != null && metaClass.isSet(_UML._Classification._Classifier.attribute))
{
var properties = metaClass.get(_UML._Classification._Classifier.attribute) as IEnumerable;
if (properties != null)
{
foreach (var property in properties.Cast<IObject>())
{
var propertyName = property.get("name").ToString();
FieldData column;
if (!result.ColumnsOnProperty.TryGetValue(propertyName, out column))
{
column = new TextFieldData
{
name = ConvertPropertyToColumnName(property),
title = property.get(_UML._CommonStructure._NamedElement.name).ToString()
};
result.ColumnsOnProperty[propertyName] = column;
}
}
}
}
}
// Second phase: Get properties by the object iself
// This item does not have a metaclass and also no properties, so we try to find them by using the item
var itemAsAllProperties = item as IObjectAllProperties;
if (itemAsAllProperties != null)
{
var properties = itemAsAllProperties.getPropertiesBeingSet();
foreach (var property in properties)
{
FieldData column;
if (!result.ColumnsOnProperty.TryGetValue(property, out column))
{
column = new TextFieldData
{
name = ConvertPropertyToColumnName(property),
title =
_nameResolution == null ? property.ToString() : _nameResolution.GetName(property)
};
result.ColumnsOnProperty[property] = column;
}
var value = ((IObject) item).get(property);
column.isEnumeration |= value is IEnumerable && !(value is string);
}
}
}
