public Task <IHttpActionResult> Get(string expr = null, string action = null)
{
if (action != null)
{
switch (action)
{
case "purge":
AnalyzerFactory.PurgeCache();
break;
default:
throw new ArgumentException("无效的操作。", nameof(action));
}
}
if (expr != null)
{
long[] idPair;
try
{
idPair = JsonConvert.DeserializeObject <long[]>(expr);
}
catch (Exception ex) when(ex is JsonSerializationException ||
ex is JsonReaderException)
{
throw new ArgumentException(ex.Message, nameof(expr));
}
if (idPair.Length != 2)
{
throw new ArgumentException("无效的节点对。节点对有且仅有两个元素。", nameof(expr));
}
return(Get(idPair[0], idPair[1]));
}
return(Task.FromResult((IHttpActionResult)Ok()));
}