/// <summary>
/// Generate version key/value pairs to use in the header
/// </summary>
/// <param name="headerValues">Header values to populate</param>
/// <param name="version">Version to supply in the header</param>
/// <param name="replaceExisting">If true, replace an existing header with the specified version. Otherwise no-op in that case</param>
/// <param name="useLegacyFormat">If true, use the legacy format of api-version combined with res-version</param>
internal static void AddApiResourceVersionValues(this ICollection <NameValueHeaderValue> headerValues, ApiResourceVersion version, Boolean replaceExisting, Boolean useLegacyFormat)
{
String apiVersionHeaderValue = null;
String resVersionHeaderValue = null;
if (useLegacyFormat)
{
apiVersionHeaderValue = version.ApiVersionString;
if (version.ResourceVersion > 0)
{
resVersionHeaderValue = version.ResourceVersion.ToString();
}
}
else
{
apiVersionHeaderValue = version.ToString();
}
NameValueHeaderValue existingHeader = headerValues.FirstOrDefault(h => String.Equals(c_apiVersionHeaderKey, h.Name));
if (existingHeader != null)
{
if (replaceExisting)
{
existingHeader.Value = apiVersionHeaderValue;
if (!String.IsNullOrEmpty(resVersionHeaderValue))
{
NameValueHeaderValue existingResHeader = headerValues.FirstOrDefault(h => String.Equals(c_legacyResourceVersionHeaderKey, h.Name));
if (existingResHeader != null)
{
existingResHeader.Value = resVersionHeaderValue;
}
else
{
headerValues.Add(new NameValueHeaderValue(c_legacyResourceVersionHeaderKey, resVersionHeaderValue));
}
}
}
}
else
{
headerValues.Add(new NameValueHeaderValue(c_apiVersionHeaderKey, apiVersionHeaderValue));
if (!String.IsNullOrEmpty(resVersionHeaderValue))
{
headerValues.Add(new NameValueHeaderValue(c_legacyResourceVersionHeaderKey, resVersionHeaderValue));
}
}
}
public VssInvalidPreviewVersionException(ApiResourceVersion requestedVersion)
: base(WebApiResources.PreviewVersionNotSuppliedMessage(requestedVersion.ToString()))
{
}