/// <summary>
/// </summary>
/// <param name="context"></param>
/// <param name="dataspace"></param>
/// <returns></returns>
public string Evaluate(IMansionContext context, IPropertyBag dataspace)
{
// validate arguments
if (context == null)
throw new ArgumentNullException("context");
if (dataspace == null)
throw new ArgumentNullException("dataspace");
// write the dataspace out to JSon array
var buffer = new StringBuilder();
using (var textWriter = new StringWriter(buffer))
using (var jsonWriter = new JsonTextWriter(textWriter))
{
jsonWriter.WriteStartArray();
// loop over the values in the dataspace
foreach (var property in dataspace.Where(x => x.Value != null))
{
// get the type
var propertyType = property.Value.GetType();
// if this type has no serializer, convert it to string first
var value = property.Value;
if (!Serializer.Converters.Any(candidate => candidate.CanConvert(propertyType)))
value = dataspace.Get<string>(context, property.Key);
// write the value
jsonWriter.WriteValue(value);
}
jsonWriter.WriteEndArray();
}
// return the content of the buffer.
return buffer.ToString();
}