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https://issues.apache.org/jira/browse/TINKERPOP-1696?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stephen mallette updated TINKERPOP-1696:
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Component/s: (was: language-variant)
dotnet
> gremlin-dotnet: GraphSONReader third-party type exposed
> -------------------------------------------------------
>
> Key: TINKERPOP-1696
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1696
> Project: TinkerPop
> Issue Type: Improvement
> Components: dotnet
> Affects Versions: 3.3.0
> Reporter: Jorge Bay
> Priority: Minor
>
> On gremlin-dotnet, the {{GraphSONReader}} public class and
> {{IGraphSONDeserializer}} public interface uses {{JToken}} as a parameter,
> which is a type defined in the third-party library Newtonsoft's Json.NET.
> {code:java}
> public class GraphSONReader {
> public dynamic ToObject(JToken jToken) {
> // ... implementation
> }
> }
> {code}
> {code:java}
> public interface IGraphSONDeserializer {
> object Objectify(JToken graphsonObject, GraphSONReader reader);
> }
> {code}
> Even though Json.NET is a well-known library, exposing a third-party library
> type is usually not a good idea as it tightly couples both libraries, ie:
> {{IGraphSONDeserializer}} implementers will have to use Json.NET.
> As we are dealing with JSON data, there is a benefit in parsing once and
> access the parsed data, like its currently implemented (we should avoid using
> strings and parse multiple times).
> I propose using
> [{{dynamic}}|https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/types/using-type-dynamic]
> instead. In C#, an object of type {{dynamic}} is basically a dictionary
> without compile time checks, which is suitable for scenarios like this one.
> {code:java}
> public class GraphSONReader {
> public dynamic ToObject(dynamic parsedJson) {
> // ... implementation
> string type = parsedJson["@type"];
> // ... get the deserializer for the given type ...
> }
> }
> {code}
> {code:java}
> public interface IGraphSONDeserializer {
> object Objectify(dynamic graphsonObject, GraphSONReader reader);
> }
> {code}
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