Update sbt plugin to support RelayConfig #295 (#306)

plugins/sbt/graphql-java-codegen-sbt-plugin/src/main/scala/io/github/dreamylost/graphql/codegen/GraphQLCodegenKeys.scala

@@ -2,9 +2,8 @@ package io.github.dreamylost.graphql.codegen
 
 import java.util
 
-import com.kobylynskyi.graphql.codegen.model.{ ApiNamePrefixStrategy, ApiRootInterfaceStrategy }
+import com.kobylynskyi.graphql.codegen.model.{ ApiInterfaceStrategy, ApiNamePrefixStrategy, ApiRootInterfaceStrategy, RelayConfig }
 import sbt._
-import com.kobylynskyi.graphql.codegen.model.ApiInterfaceStrategy
 
 /**
  *
@@ -108,6 +107,8 @@ trait GraphQLCodegenKeys {
 
   val responseProjectionMaxDepth = settingKey[Int]("limit depth when the projection is constructed automatically")
 
+  val relayConfig = settingKey[RelayConfig]("Can be used to supply a custom configuration for Relay support.")
+
   //for version
   val javaxValidationApiVersion = settingKey[Option[String]]("javax-validation-api version")
   val graphqlJavaCodegenVersion = settingKey[Option[String]]("graphql java codegen version")

plugins/sbt/graphql-java-codegen-sbt-plugin/src/main/scala/io/github/dreamylost/graphql/codegen/GraphQLCodegenPlugin.scala

@@ -41,6 +41,7 @@ class GraphQLCodegenPlugin(configuration: Configuration, private[codegen] val co
 
     lazy val schemaFinderConfig: SchemaFinderConfig = SchemaFinderConfig(null)
     lazy val parentInterfacesConfig: ParentInterfacesConfig = ParentInterfacesConfig()
+    lazy val defaultRelayConfig = new RelayConfig() //for auto import which can change it by `set` methods.
     lazy val GraphQLCodegenConfig = self.GraphQLCodegenConfig
 
   }
@@ -87,6 +88,7 @@ class GraphQLCodegenPlugin(configuration: Configuration, private[codegen] val co
     apiReturnListType := None,
     apiInterfaceStrategy := MappingConfigConstants.DEFAULT_API_INTERFACE_STRATEGY,
     useOptionalForNullableReturnTypes := MappingConfigConstants.DEFAULT_USE_OPTIONAL_FOR_NULLABLE_RETURN_TYPES,
+    relayConfig := defaultRelayConfig,
     // package name configs:
     apiPackageName := None,
     modelPackageName := None,
@@ -155,6 +157,7 @@ class GraphQLCodegenPlugin(configuration: Configuration, private[codegen] val co
     mappingConfig.setApiInterfaceStrategy((apiInterfaceStrategy in GraphQLCodegenConfig).value)
     mappingConfig.setUseOptionalForNullableReturnTypes((useOptionalForNullableReturnTypes in GraphQLCodegenConfig).value)
     mappingConfig.setResponseProjectionMaxDepth((responseProjectionMaxDepth in GraphQLCodegenConfig).value)
+    mappingConfig.setRelayConfig((relayConfig in GraphQLCodegenConfig).value)
 
     sLog.value.debug(s"Current mapping config is <$mappingConfig>")
     mappingConfig

plugins/sbt/graphql-java-codegen-sbt-plugin/src/sbt-test/graphql-codegen-sbt-plugin/example-client/src/main/scala/io/github/dreamylost/OkHttp.scala

@@ -42,7 +42,7 @@ object OkHttp {
       post(RequestBody.create(request.toHttpJsonBody, json))
     val promise = Promise[T]
 
-    println("Graphql query "+request.toHttpJsonBody)
+    println("Graphql query " + request.toHttpJsonBody)
     OkHttp.client.newCall(rb.build()).enqueue(new Callback {
 
       override def onFailure(call: Call, e: IOException): Unit = {