public virtual IDictionary<MediaTypeHeaderValue, object> GetSample(ApiDescription api, SampleDirection sampleDirection)
{
if (api == null)
{
throw new ArgumentNullException("api");
}
string controllerName = api.ActionDescriptor.ControllerDescriptor.ControllerName;
string actionName = api.ActionDescriptor.ActionName;
IEnumerable<string> parameterNames = api.ParameterDescriptions.Select(p => p.Name);
Collection<MediaTypeFormatter> formatters;
Type type = ResolveType(api, controllerName, actionName, parameterNames, sampleDirection, out formatters);
var samples = new Dictionary<MediaTypeHeaderValue, object>();
// Use the samples provided directly for actions
var actionSamples = GetAllActionSamples(controllerName, actionName, parameterNames, sampleDirection);
foreach (var actionSample in actionSamples)
{
samples.Add(actionSample.Key.MediaType, WrapSampleIfString(actionSample.Value));
}
// Do the sample generation based on formatters only if an action doesn't return an HttpResponseMessage.
// Here we cannot rely on formatters because we don't know what's in the HttpResponseMessage, it might not even use formatters.
if (type != null && !typeof(HttpResponseMessage).IsAssignableFrom(type))
{
object sampleObject = GetSampleObject(type);
foreach (var formatter in formatters)
{
foreach (MediaTypeHeaderValue mediaType in formatter.SupportedMediaTypes)
{
if (!samples.ContainsKey(mediaType))
{
object sample = GetActionSample(controllerName, actionName, parameterNames, type, formatter, mediaType, sampleDirection);
// If no sample found, try generate sample using formatter and sample object
if (sample == null && sampleObject != null)
{
sample = WriteSampleObjectUsingFormatter(formatter, sampleObject, type, mediaType);
}
samples.Add(mediaType, WrapSampleIfString(sample));
}
}
}
}
return samples;
}
