Add the TrivialDataFetcher interface to MethodFieldResolver so that it can be excluded from tracing

Author: cliedeman

src/main/kotlin/com/coxautodev/graphql/tools/MethodFieldResolver.kt

@@ -3,6 +3,7 @@ package com.coxautodev.graphql.tools
 import com.coxautodev.graphql.tools.SchemaParserOptions.GenericWrapper
 import com.esotericsoftware.reflectasm.MethodAccess
 import com.fasterxml.jackson.core.type.TypeReference
+import graphql.TrivialDataFetcher
 import graphql.execution.batched.Batched
 import graphql.language.FieldDefinition
 import graphql.language.NonNullType
@@ -13,9 +14,6 @@ import kotlinx.coroutines.future.future
 import java.lang.reflect.Method
 import java.util.*
 import kotlin.coroutines.intrinsics.suspendCoroutineUninterceptedOrReturn
-import kotlin.reflect.full.valueParameters
-import kotlin.reflect.jvm.javaType
-import kotlin.reflect.jvm.kotlinFunction
 
 /**
  * @author Andrew Potter
@@ -105,7 +103,16 @@ internal class MethodFieldResolver(field: FieldDefinition, search: FieldResolver
         return if (batched) {
             BatchedMethodFieldResolverDataFetcher(getSourceResolver(), this.method, args, options)
         } else {
-            MethodFieldResolverDataFetcher(getSourceResolver(), this.method, args, options)
+            if (args.size == 0
+                    && this.method.getParameterCount() == 0
+                    && this.method.getName().startsWith("get")
+                    && this.search.type is java.lang.reflect.Class
+                    && (this.search.type as java.lang.reflect.Class).getMethod(this.method.getName()) != null) {
+                TrivialMethodFieldResolverDataFetcher(getSourceResolver(), this.method, args, options);
+            } else {
+                MethodFieldResolverDataFetcher(getSourceResolver(), this.method, args, options)
+            }
+
         }
     }
 
@@ -191,6 +198,10 @@ open class MethodFieldResolverDataFetcher(private val sourceResolver: SourceReso
     }
 }
 
+open class TrivialMethodFieldResolverDataFetcher(private val sourceResolver: SourceResolver, method: Method, private val args: List<ArgumentPlaceholder>, private val options: SchemaParserOptions) : MethodFieldResolverDataFetcher(sourceResolver, method, args, options), TrivialDataFetcher<Any> {
+
+}
+
 private suspend inline fun MethodAccess.invokeSuspend(target: Any, methodIndex: Int, args: Array<Any?>): Any? {
     return suspendCoroutineUninterceptedOrReturn { continuation ->
         invoke(target, methodIndex, *args + continuation)