/// <summary>
/// Constructor
/// </summary>
/// <param name="property"></param>
public PropertyMetaData(IElementPropertyMetaData property)
{
if (property == null)
{
throw new ArgumentNullException(nameof(property));
}
Name = property.Name;
Type = GetTypeName(property.Type);
Category = property.Category;
DelayExecution = property.DelayExecution;
EvidenceProperties = property.EvidenceProperties;
ItemProperties = null;
if (property.ItemProperties != null &&
property.ItemProperties.Count > 0)
{
var newList = new List <PropertyMetaData>();
foreach (var itemProperty in property.ItemProperties)
{
newList.Add(new PropertyMetaData(itemProperty));
}
ItemProperties = newList;
}
}
/// <summary>
/// Get the meta data for the specified property name.
/// If there are no properties with that name or multiple
/// properties on different elements then an exception will
/// be thrown.
/// </summary>
/// <param name="propertyName">
/// The property name to find the meta data for
/// </param>
/// <returns>
/// The meta data associated with the specified property name
/// </returns>
/// <exception cref="PipelineDataException">
/// Thrown if the property name is associated with zero or
/// multiple elements.
/// </exception>
public IElementPropertyMetaData GetMetaDataForProperty(string propertyName)
{
IElementPropertyMetaData result = null;
if (_metaDataByPropertyName.TryGetValue(propertyName, out result) == false)
{
// Get any properties that match the supplied name.
var properties = FlowElements
.SelectMany(e => e.Properties)
.Where(p => p.Name.ToUpperInvariant() == propertyName.ToUpperInvariant());
// If there is more than one matching property then log an error.
if (properties.Count() > 1)
{
string message = $"Multiple matches for property '{propertyName}'. " +
$"Flow elements that populate this property are: " +
$"'{string.Join(",", properties.Select(p => p.Element.GetType().Name))}'";
_logger.LogError(message);
throw new PipelineDataException(message);
}
// If there are no matching properties then log an error.
if (properties.Any() == false)
{
string message = $"Could not find property '{propertyName}'.";
_logger.LogError(message);
throw new PipelineDataException(message);
}
result = properties.Single();
_metaDataByPropertyName.Add(propertyName, result);
}
return(result);
}
/// <summary>
/// Get the meta data for the specified property name.
/// If there are no properties with that name or multiple
/// properties on different elements then an exception will
/// be thrown.
/// </summary>
/// <param name="propertyName">
/// The property name to find the meta data for
/// </param>
/// <returns>
/// The meta data associated with the specified property name
/// </returns>
/// <exception cref="PipelineDataException">
/// Thrown if the property name is associated with zero or
/// multiple elements.
/// </exception>
public IElementPropertyMetaData GetMetaDataForProperty(string propertyName)
{
IElementPropertyMetaData result = null;
if (_metaDataByPropertyName.TryGetValue(propertyName, out result) == false)
{
// Get any properties that match the supplied name.
var properties = FlowElements
.SelectMany(e => e.Properties)
.Where(p => p.Name.ToUpperInvariant() == propertyName.ToUpperInvariant());
// If there is more than one matching property then
// throw an exception.
if (properties.Count() > 1)
{
string message = string.Format(
CultureInfo.InvariantCulture,
Messages.ExceptionMultipleProperties,
propertyName,
string.Join(",", properties.Select(p => p.Element.GetType().Name)));
throw new PipelineDataException(message);
}
// If there are no matching properties then
// throw an exception.
if (properties.Any() == false)
{
string message = string.Format(
CultureInfo.InvariantCulture,
Messages.ExceptionCannotFindProperty,
propertyName);
throw new PipelineDataException(message);
}
result = properties.Single();
result = _metaDataByPropertyName.GetOrAdd(propertyName, result);
}
return(result);
}