/// <summary>
/// Get all element data AspectPropertyValues that match the specified predicate
/// </summary>
/// <param name="predicate">
/// If a property passed to this function returns true then it will
/// be included in the results
/// </param>
/// <returns>
/// All the element data AspectPropertyValues that match the predicate
/// </returns>
/// <exception cref="PipelineException">
/// Thrown if this FlowData instance has not been processed yet.
/// </exception>
public IEnumerable <KeyValuePair <string, object> > GetWhere(
Func <IElementPropertyMetaData, bool> predicate)
{
var data = _data.AsStringKeyDictionary();
foreach (var element in PipelineInternal.FlowElements
.Where(e => data.ContainsKey(e.ElementDataKey)))
{
var elementData = data[element.ElementDataKey] as IElementData;
if (elementData != null)
{
var elementDataDictionary = elementData.AsDictionary();
foreach (var property in
element.Properties.Where(predicate).Where(i =>
i.Available &&
// Check if the property is actually present in
// the element data before trying to access it.
elementDataDictionary.ContainsKey(i.Name)))
{
#pragma warning disable CA1308 // Normalize strings to uppercase
// Pipeline specification is for keys to be lower-case.
yield return(new KeyValuePair <string, object>(
element.ElementDataKey + "." + property.Name.ToLowerInvariant(),
elementDataDictionary[property.Name.ToLowerInvariant()]));
#pragma warning restore CA1308 // Normalize strings to uppercase
}
}
}
}
/// <summary>
/// Get the <see cref="IElementData"/> instance containing data
/// populated by the specified element.
/// </summary>
/// <param name="elementDataKey">
/// The name of the element to get data from.
/// </param>
/// <returns>
/// An <see cref="IElementData"/> instance containing the data.
/// </returns>
/// <exception cref="ArgumentNullException">
/// Thrown if the supplied data key is null
/// </exception>
/// <exception cref="PipelineException">
/// Thrown if this FlowData instance has not been processed yet.
/// </exception>
public IElementData Get(string elementDataKey)
{
if (_processed == false)
{
throw new PipelineException(Messages.ExceptionFlowDataNotYetProcessed);
}
if (elementDataKey == null)
{
throw new ArgumentNullException(nameof(elementDataKey));
}
return(_data.AsStringKeyDictionary()[elementDataKey] as IElementData);
}