Highlight fields Nest 5.0-rc

[justusth]

Hello, hopefully you wil think this is usefull information: Exception in parsing using Nest to create highligt.

NEST/Elasticsearch.Net version:
5.0-rc

Elasticsearch version:
5.0.0

Description of the problem including expected versus actual behavior:
Step one, search with Highlight containing BoundaryMaxSize set,

Gives:
ServerError = {ServerError: 400Type: parsing_exception Reason: "[highlight] failed to parse field [fields]" CausedBy: "Type: parsing_exception Reason: "[fields] failed to parse field [TestDoc]" CausedBy: "Type: illegal_argument_exception Reason: "[highlight_field] unknow...

Steps to reproduce:
Code example creating said highlight, use highligt in search, set boundarymaxsize:

        var highlight = new Highlight { Fields = new Dictionary<Field, IHighlightField>()};
        foreach (string fieldname in highlightFields.Split(','))
        {
            var f = new Field (GetElasticFieldName(fieldname, type).Value);
            var h = new HighlightField
            {
                Type = HighlighterType.Plain,
                BoundaryMaxSize = 35,
                Field = GetElasticFieldName(fieldname, type).Value,
            };

            highlight.Fields.Add(f, h);
        }

        highlight.PreTags = new List<string> { pretags };
        highlight.PostTags = new List<string> { posttags };

Temporary solution (its ok with me but wasted some time)
Remove BoundaryMaxSize and it works.

[russcam]

Thanks for opening this @justusth 👍