1 files changed, 65 insertions, 0 deletions
diff --git a/config-model/src/main/java/com/yahoo/schema/processing/ReferenceFieldsProcessor.java b/config-model/src/main/java/com/yahoo/schema/processing/ReferenceFieldsProcessor.java
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+++ b/config-model/src/main/java/com/yahoo/schema/processing/ReferenceFieldsProcessor.java
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+// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.schema.processing;
+
+import com.yahoo.config.application.api.DeployLogger;
+import com.yahoo.documentmodel.NewDocumentReferenceDataType;
+import com.yahoo.schema.RankProfileRegistry;
+import com.yahoo.schema.Schema;
+import com.yahoo.schema.document.SDField;
+import com.yahoo.vespa.documentmodel.DocumentSummary;
+import com.yahoo.vespa.documentmodel.SummaryTransform;
+import com.yahoo.vespa.model.container.search.QueryProfiles;
+
+/**
+ * Class that processes reference fields and removes attribute aspect of such fields from summary.
+ *
+ * A document summary for a reference field should always be fetched from the document instance in back-end
+ * as the attribute vector does not store the original document id string.
+ *
+ * @author geirst
+ */
+public class ReferenceFieldsProcessor extends Processor {
+
+    public ReferenceFieldsProcessor(Schema schema,
+                                    DeployLogger deployLogger,
+                                    RankProfileRegistry rankProfileRegistry,
+                                    QueryProfiles queryProfiles) {
+        super(schema, deployLogger, rankProfileRegistry, queryProfiles);
+    }
+
+    @Override
+    public void process(boolean validate, boolean documentsOnly) {
+        clearSummaryAttributeAspectForConcreteFields();
+        clearSummaryAttributeAspectForExplicitSummaryFields();
+    }
+
+    private void clearSummaryAttributeAspectForExplicitSummaryFields() {
+        for (DocumentSummary docSum : schema.getSummaries().values()) {
+            docSum.getSummaryFields().values().stream()
+                    .filter(summaryField  -> summaryField.getDataType() instanceof NewDocumentReferenceDataType)
+                    .forEach(summaryField -> summaryField.setTransform(SummaryTransform.NONE));
+        }
+    }
+
+    private void clearSummaryAttributeAspectForConcreteFields() {
+        for (SDField field : schema.allConcreteFields()) {
+            if (field.getDataType() instanceof NewDocumentReferenceDataType) {
+                removeFromAttributePrefetchSummaryClass(field);
+                clearSummaryTransformOnSummaryFields(field);
+            }
+        }
+    }
+
+    private void removeFromAttributePrefetchSummaryClass(SDField field) {
+        DocumentSummary summary = schema.getSummariesInThis().get("attributeprefetch");
+        if (summary != null) {
+            summary.remove(field.getName());
+        }
+    }
+
+    private void clearSummaryTransformOnSummaryFields(SDField field) {
+        schema.getSummaryFields(field).forEach(summaryField -> summaryField.setTransform(SummaryTransform.NONE));
+    }
+
+}
+