ElasticSearch 2.0 NEST migration

问题

I have used elastic 1.7 before. After migration to 2.0 I have faced with several issues (here are those I am most focus currently): mapping attributes, json serialization.

I have used next attributes I can't find in 2.0 version - ElasticPropertywith property Name, Boost, OptOut .

I can't find replacement for settitgs.SetJsonSerializerSettingsModifier(x => x.DateParseHandling = DateParseHandling.DateTimeOffset) in new api.

The only useful document I found is breaking changes. Sadly, but nest examples are outdated. Possible I have missed something easy, please point me in right direction.

Edit

So, Name, Boost are part of String attribute

回答1:

Ad1.

This part has been refactored and right now you can't use ElasticProperty. It has been replaced with bunch of new attributes(as described in breaking changes notes)

For example

[ElasticProperty(Name="name", Boost = 1.1, OptOut = true)]
public string Name {get; set;}

it's equivalent to

[String(Name="name", Boost = 1.1, Ignore = true)]
public string Name {get; set;}

etc.

Ad2.

You can modify your serialization settings by passing custom JsonNetSerializer to ConnectionSettings, just like this:

var connectionPool = new SingleNodeConnectionPool(new Uri("http://localhost:9200"));
var settings = new ConnectionSettings(connectionPool, connectionSettings => new MyJsonNetSerializer(connectionSettings))
    .DefaultIndex(indexName)
    .DisableDirectStreaming()
    .PrettyJson();

public class MyJsonNetSerializer : JsonNetSerializer
{
    public MyJsonNetSerializer(IConnectionSettingsValues settings) : base(settings)
    {
    }

    protected override void ModifyJsonSerializerSettings(Newtonsoft.Json.JsonSerializerSettings settings)
    {
        settings.DateParseHandling = DateParseHandling.DateTimeOffset;
    }
}

More details here and here.

I hope it's gonna make your migration easier :)

来源：https://stackoverflow.com/questions/35502725/elasticsearch-2-0-nest-migration

标签

ElasticSearch

nest

elasticsearch-2.0