Refactor: extract resolver_query_adapter as an injectable dependency.

elasticgraph-graphql/lib/elastic_graph/graphql.rb

@@ -101,8 +101,7 @@ def schema
             require "elastic_graph/graphql/resolvers/graphql_adapter"
             Resolvers::GraphQLAdapter.new(
               schema: schema,
-              datastore_query_builder: datastore_query_builder,
-              datastore_query_adapters: datastore_query_adapters,
+              query_adapter: resolver_query_adapter,
               runtime_metadata: runtime_metadata,
               resolvers: graphql_resolvers
             )
@@ -124,6 +123,17 @@ def datastore_search_router
       end
     end
 
+    # @private
+    def resolver_query_adapter
+      @resolver_query_adapter ||= begin
+        require "elastic_graph/graphql/resolvers/query_adapter"
+        Resolvers::QueryAdapter.new(
+          datastore_query_builder: datastore_query_builder,
+          datastore_query_adapters: datastore_query_adapters
+        )
+      end
+    end
+
     # @private
     def datastore_query_builder
       @datastore_query_builder ||= begin

elasticgraph-graphql/lib/elastic_graph/graphql/http_endpoint.rb

@@ -227,7 +227,7 @@ def self.error(status_code, message)
     # Steep weirdly expects them here...
     # @dynamic initialize, config, logger, runtime_metadata, graphql_schema_string, datastore_core, clock
     # @dynamic graphql_http_endpoint, graphql_query_executor, schema, datastore_search_router, filter_interpreter, filter_node_interpreter
-    # @dynamic datastore_query_builder, graphql_gem_plugins, graphql_resolvers, datastore_query_adapters, monotonic_clock
+    # @dynamic datastore_query_builder, resolver_query_adapter, graphql_gem_plugins, graphql_resolvers, datastore_query_adapters, monotonic_clock
     # @dynamic load_dependencies_eagerly, self.from_parsed_yaml, filter_args_translator, sub_aggregation_grouping_adapter
   end
 end

elasticgraph-graphql/lib/elastic_graph/graphql/resolvers/graphql_adapter.rb

@@ -6,22 +6,16 @@
 #
 # frozen_string_literal: true
 
-require "elastic_graph/graphql/resolvers/query_adapter"
-
 module ElasticGraph
   class GraphQL
     module Resolvers
       # Adapts the GraphQL gem's resolver interface to the interface implemented by
       # our resolvers. Responsible for routing a resolution request to the appropriate
       # resolver.
       class GraphQLAdapter
-        def initialize(schema:, datastore_query_builder:, datastore_query_adapters:, runtime_metadata:, resolvers:)
+        def initialize(schema:, query_adapter:, runtime_metadata:, resolvers:)
           @schema = schema
-          @query_adapter = QueryAdapter.new(
-            datastore_query_builder: datastore_query_builder,
-            datastore_query_adapters: datastore_query_adapters
-          )
-
+          @query_adapter = query_adapter
           @resolvers = resolvers
 
           scalar_types_by_name = runtime_metadata.scalar_types_by_name

elasticgraph-graphql/sig/elastic_graph/graphql.rbs

@@ -33,6 +33,9 @@ module ElasticGraph
     @datastore_search_router: DatastoreSearchRouter?
     def datastore_search_router: () -> DatastoreSearchRouter
 
+    @resolver_query_adapter: Resolvers::QueryAdapter?
+    def resolver_query_adapter: () -> Resolvers::QueryAdapter
+
     @datastore_query_builder: DatastoreQuery::Builder?
     def datastore_query_builder: () -> DatastoreQuery::Builder
 

elasticgraph-graphql/sig/elastic_graph/graphql/resolvers/graphql_adapter.rbs

@@ -4,8 +4,7 @@ module ElasticGraph
       class GraphQLAdapter
         def initialize: (
           schema: Schema,
-          datastore_query_builder: DatastoreQuery::Builder,
-          datastore_query_adapters: ::Array[_QueryAdapter],
+          query_adapter: Resolvers::QueryAdapter,
           runtime_metadata: SchemaArtifacts::RuntimeMetadata::Schema,
           resolvers: ::Array[Resolvers::_Resolver]
         ) -> void

elasticgraph-graphql/sig/elastic_graph/graphql/resolvers/query_adapter.rbs

@@ -0,0 +1,12 @@
+module ElasticGraph
+  class GraphQL
+    module Resolvers
+      class QueryAdapter
+        def initialize: (
+          datastore_query_builder: DatastoreQuery::Builder,
+          datastore_query_adapters: ::Array[_QueryAdapter]
+        ) -> void
+      end
+    end
+  end
+end

elasticgraph-graphql/spec/unit/elastic_graph/graphql/resolvers/graphql_adapter_spec.rb

@@ -18,8 +18,7 @@ module Resolvers
         it "raises a clear error when no resolver can be found" do
           adapter = GraphQLAdapter.new(
             schema: schema,
-            datastore_query_builder: graphql.datastore_query_builder,
-            datastore_query_adapters: graphql.datastore_query_adapters,
+            query_adapter: graphql.resolver_query_adapter,
             runtime_metadata: graphql.runtime_metadata,
             resolvers: graphql.graphql_resolvers
           )