private void MapArgumentsByPosition(Route source, ParameterInfo[] requiredArguments, NameValueCollection headers, int skipNumberOfDestinationArguments, List <KeyValuePair <Type, ParameterNameAndLocation> > map)
{
if ((requiredArguments.Length - skipNumberOfDestinationArguments) != source.QueryParameters.Count() + source.RouteParameters.Count())
{
throw new InvalidOperationException("Either use parameter names mathing the query and route parameters or specify as many parameters as the combined number of route and query variables");
}
IEnumerator headerParameters = headers.AllKeys.GetEnumerator();
IEnumerator <string> routeParameters = source.RouteParameters.GetEnumerator();
IEnumerator <string> queryParameters = source.QueryParameters.GetEnumerator();
foreach (ParameterInfo argument in requiredArguments.Skip(skipNumberOfDestinationArguments))
{
if (headerParameters.MoveNext())
{
object value = RouteHelpers.GetHeaderParameterValue((string)headerParameters.Current, headers, argument.ParameterType);
if (value != null)
{
map.Add(new KeyValuePair <Type, ParameterNameAndLocation>(argument.ParameterType,
new ParameterNameAndLocation {
Name = routeParameters.Current, Location = ParameterLocation.Header
}));
}
}
if (routeParameters.MoveNext())
{
map.Add(new KeyValuePair <Type, ParameterNameAndLocation>(argument.ParameterType,
new ParameterNameAndLocation {
Name = routeParameters.Current, Location = ParameterLocation.Route
}));
}
else
{
queryParameters.MoveNext();
map.Add(new KeyValuePair <Type, ParameterNameAndLocation>(argument.ParameterType,
new ParameterNameAndLocation {
Name = queryParameters.Current, Location = ParameterLocation.Query
}));
}
}
}
public object GetHeaderParameterValue(string parameterName, NameValueCollection headers, Type expectedType)
{
return(RouteHelpers.GetHeaderParameterValue(parameterName, headers, expectedType));
}