ElasticClient.Analyze throws exception when done with an empty text

[Roemer]

Calling Analyze with en empty / null value throws an Exception. I think it would be better to be able to send empty analyze requests and get an IAnalyzeResponse back with the IsValid = false and appropriate error message set instead of the exception.

Example:

var req = new AnalyzeRequest(String.Empty);
req.Indices = new IndexNameMarker[] { IndexName };
req.Field = field;
// Next line throws an exception
var analyzeResult = Client.Analyze(req);

[gmarz]

@Roemer agreed, it doesn't really make sense to call Analyze on an empty string, but nonetheless, we should treat it as we normally do with elasticsearch exceptions. Just pushed the above fix, thanks for reporting this!