Verify that create_time and version fields appear on GET

Author: przemekwitek

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/ml/dataframe/DataFrameAnalyticsConfig.java

@@ -304,6 +304,8 @@ public Builder(DataFrameAnalyticsConfig config, ByteSizeValue maxModelMemoryLimi
             if (config.analyzedFields != null) {
                 this.analyzedFields = new FetchSourceContext(true, config.analyzedFields.includes(), config.analyzedFields.excludes());
             }
+            this.createTime = config.createTime;
+            this.version = config.version;
         }
 
         public String getId() {

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/ml/job/persistence/ElasticsearchMappings.java

@@ -391,6 +391,10 @@ public static void addDatafeedConfigFields(XContentBuilder builder) throws IOExc
         .endObject();
     }
 
+    /**
+     * {@link DataFrameAnalyticsConfig} mapping.
+     * Does not include mapping for CREATE_TIME as this mapping is added by {@link #addJobConfigFields} method.
+     */
     public static void addDataFrameAnalyticsFields(XContentBuilder builder) throws IOException {
         builder.startObject(DataFrameAnalyticsConfig.ID.getPreferredName())
             .field(TYPE, KEYWORD)
@@ -434,6 +438,10 @@ public static void addDataFrameAnalyticsFields(XContentBuilder builder) throws I
                     .endObject()
                 .endObject()
             .endObject()
+        .endObject()
+        // re-used: CREATE_TIME
+        .startObject(DataFrameAnalyticsConfig.VERSION.getPreferredName())
+            .field(TYPE, KEYWORD)
         .endObject();
     }
 

x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/ml/job/results/ReservedFieldNames.java

@@ -277,6 +277,8 @@ public final class ReservedFieldNames {
             DataFrameAnalyticsConfig.DEST.getPreferredName(),
             DataFrameAnalyticsConfig.ANALYSIS.getPreferredName(),
             DataFrameAnalyticsConfig.ANALYZED_FIELDS.getPreferredName(),
+            DataFrameAnalyticsConfig.CREATE_TIME.getPreferredName(),
+            DataFrameAnalyticsConfig.VERSION.getPreferredName(),
             DataFrameAnalyticsDest.INDEX.getPreferredName(),
             DataFrameAnalyticsDest.RESULTS_FIELD.getPreferredName(),
             DataFrameAnalyticsSource.INDEX.getPreferredName(),

x-pack/plugin/src/test/resources/rest-api-spec/test/ml/data_frame_analytics_crud.yml

@@ -58,6 +58,19 @@ setup:
   - is_true: create_time
   - is_true: version
 
+  - do:
+      ml.get_data_frame_analytics:
+        id: "simple-outlier-detection-with-query"
+  - match: { count: 1 }
+  - match: { data_frame_analytics.0.id: "simple-outlier-detection-with-query" }
+  - match: { data_frame_analytics.0.source.index: "index-source" }
+  - match: { data_frame_analytics.0.source.query: {"term" : { "user" : "Kimchy"} } }
+  - match: { data_frame_analytics.0.dest.index: "index-dest" }
+  - match: { data_frame_analytics.0.analysis: {"outlier_detection":{}} }
+  - match: { data_frame_analytics.0.analyzed_fields: {"includes" : ["obj1.*", "obj2.*" ], "excludes": [] } }
+  - is_true: data_frame_analytics.0.create_time
+  - is_true: data_frame_analytics.0.version
+
 ---
 "Test put config with security headers in the body":
   - do: